how many minutes will it take a car to travel 733 miles if the car is moving at a constant speed of 45mph

Final velocity of Jeff's car is 7.133 m/s south. The direction is 59.3° south of east.

In this issue, we can utilize preservation of energy to track down the last speed and course of Jeff's crash mobile after the impact with Julia's. Before the impact, the energy in the x-heading is zero, and in the y-course, it is 60 kg × 4 m/s = 240 kg⋅m/s north. Julia's force is 45 kg × 6 m/s = 270 kg⋅m/s west.After the crash, the energy in the x-course is rationed. The absolute energy in the x-course is as yet zero, as Julia's force that way is likewise zero. In the y-heading, the absolute force after the crash is 60 kg × vj + 45 kg × 2 m/s sin 15°, where vj is Jeff's last speed in the y-course.Utilizing protection of energy, we can compare the force when the crash in the y-heading:

60 kg × 4 m/s + 45 kg × 6 m/s = 60 kg × vj + 45 kg × 2 m/s sin 15°

Working on this situation, we get:

240 kg⋅m/s + 270 kg⋅m/s = 60 kg × vj + 12.19 kg⋅m/s

Addressing for vj, we get:

vj = (240 kg⋅m/s + 270 kg⋅m/s - 12.19 kg⋅m/s)/60 kg

vj = 7.133 m/s south

Consequently, Jeff's last speed is 7.133 m/s south. To find the course, we can utilize geometry. The point of Jeff's last speed concerning the x-pivot is given by:

θ = tan^-1(vj/4 m/s)

θ = 59.3° south of east

Accordingly, the last speed and heading of Jeff's amusement cart are 7.133 m/s at a point of 59.3° south of east.

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The useful electric power that could be produced with a bicycle-powered generator is 320 W.

A typical person can maintain a steady energy expenditure of 400 W on a bicycle. Thus, this is the power output that can be expected from a bicycle-powered generator.

However, not all of the power generated can be considered useful electric power since the generator itself has an efficiency of 80%.

Electric power is a unit of time-based measurement of how quickly electrical energy is transferred across an electric circuit.

Therefore, the useful electric power that could be produced with a bicycle-powered generator can be calculated as:

Useful electric power = Power output x Efficiency of the generator

Useful electric power = 400 W x 0.80 = 320 W

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If an electric wire is allowed to produce a magnetic field no larger than that of the earth (0.50 x 10-4 t) at a distance of 15 cm from the wire,  the maximum current the wire can carry  is 1.8 A.

The maximum current the wire can carry is 1.8 A.

The formula to calculate the magnetic field due to a current-carrying wire is given by,

B = μ₀I/(2πr)

Here, B = maximum magnetic field = 0.50 × 10⁻⁴ T

μ₀ = permeability of free space = 4π × 10⁻⁷ T m/II = current in the wirer = distance from the wire = 15 cm = 0.15 m

Putting the given values in the formula,

0.50 × 10⁻⁴ T

= 4π × 10⁻⁷ T m/I × (2π × 0.15 m)

Solving for I, we get,

I = 1.8 A

Therefore, the maximum current the wire can carry is 1.8 A.

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The material that should be used on a bicycle ramp to increase friction is option b) rough paper.

Rough paper has a large number of tiny, unevenly-shaped fibers which create a large amount of friction. This makes it ideal for bike ramps as it helps to slow and control the speed of a bicycle while they travel on the ramp. Additionally, rough paper is lightweight and easy to work with, making it ideal for creating ramps.

To ensure the best results, you should use thick, high-quality paper with a large number of tiny fibers. This will create more friction, allowing for better control and more stability for the cyclist. Additionally, you should ensure that the paper is securely attached to the ramp so that it doesn’t slip or move while the cyclist is on the ramp.

Overall, the best material to use on a bicycle ramp to increase friction is rough paper. Its numerous tiny fibers provide plenty of friction, while its lightweight and easy installation make it ideal for bike ramps. With the right paper and installation, you can ensure that cyclists have the best experience possible when using your ramp.

Therefore, the best material to use on a bicycle ramp to increase friction is rough paper.

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750.0 g of water at a temperature of 15.4°C will absorb 9,117.2 calories of thermal energy to increase its temperature to 86.3°C. This can be calculated by using the specific heat formula:
Q = m * c * ΔT
where:

Q = thermal energy (calories)

m = mass of water (g)

c = specific heat (calories/g°C)

ΔT = change in temperature (°C)

Therefore:
Q = 750.0 g * 4.184 calories/g°C * (86.3°C - 15.4°C)
Q = 9,117.2 calories
Thermal energy is the energy generated in the form of heat. It is a type of kinetic energy that is produced by moving particles that makeup matter. The movement of molecules generates heat energy in the form of kinetic energy. The faster the molecules move, the more thermal energy is generated.

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If a planet were orbiting the sun in an orbit two times as far as its current orbit, the planet will take 4 times longer to go around the sun than now.

What is an Orbit?

An orbit is a path that an object takes around another object in space, such as the path of the Earth around the sun. The planets all move in an orbit around the sun because the sun's gravitational force holds them in their orbits.

The distance between the planets and the sun differs depending on their location in the solar system, as well as the stage of their elliptical orbits. For example, Venus and Mars will be much nearer to Earth than Neptune and Saturn, which will be much farther away. This is due to the fact that the planets move in an elliptical orbit rather than a circular one. This implies that the distance between them and the sun varies throughout their orbit.

Astronomers measure distances in our solar system in astronomical units (AU). One AU is equal to the distance from the Earth to the sun, which is approximately 93 million miles. The sun's closest planet, Mercury, is about 0.4 AU away from it, while the most distant planet, Neptune, is about 30 AU away from it. Other objects in the solar system, such as comets and asteroids, can be located much further away from the sun.

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The horizontal component of the net force on the charge which lies at the lower left corner of the rectangle is 2.62 × 10⁻⁴ N.

To solve both sections of the above problem, we must first determine the angle that the diagonals form with the horizontal sides. This could be given as:

θ = [tex]tan^{-}( \frac{9}{28})[/tex] = 17.82°.

Horizontal component:

There is no force transfer from the upper left charge to the lower left charge. So, the negative charges on the right will be the only ones we focus on.

Using Coulomb's law, force due to lower right charge can be given as:

[tex]k\frac{q^{2} }{D^{2} } = (9 * 10^{9})\frac{35^{2} * 10^{-18} }{28^{2}*10^{-2} }[/tex] = 1.41 × 10⁻⁴N.

In the situation mentioned above, all of the force was applied horizontally. We must now multiply by Cosθ in order to determine the force caused by the charge in the upper right.

[tex]F = k\frac{Q^{2} }{D_{1}^{2}+ D_{2} ^{2} } = 9*10^{9} \frac{35^{2}*10^{-18} }{(28^{2} *100^{-2})+ (9^{2} *100^{-)2} }[/tex] Cos (17.82°)N = 1.21 × 10⁻⁴N.

Therefore, the total force is equivalent to 2.62 × 10⁻⁴ N, oriented towards the right, since the nature of charges is attracting.

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Complete question is:

Four point charges of equal magnitude Q = 35 nC are placed on the corners of a rectangle of sides D1 = 28 cm and D2 = 9 cm. The charges on the left side of the rectangle are positive while the charges on the right side of the rectangle are negative. Use a coordinate system fixed to the bottom left hand charge, with positive directions as shown in the figure.

Calculate the horizontal component of the net force, in newtons, on the charge which lies at the lower left corner of the rectangle.

The height the bullet will reach is 8163 m. We use kinematic equations to find the result.

In this case, the height the bullet will reach is determined by the initial speed, gravitational acceleration, and the time it is in the air. Using kinematic equations, the height of the bullet can be calculated as follows:

Using the equation vf = vi + g × t, the final vertical velocity can be calculated as:

vf = 400 + 9.81 × t
vf = 0

Rearranging the equation and solving for t yields:

t = -400/9.81 = -40.7 s

The initial vertical velocity is equal and opposite to the final velocity, thus the time of flight is 40.7 s. To calculate the maximum height the bullet reaches, use the equation h = vi × t + 1/2 × g × t²:

h = 400 × (-40.7) + 1/2 × 9.81 × (-40.7)²
h = 8163 m

Therefore, the bullet will reach a maximum height of 8163 m.

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Isaac encountered a water resistance force of 24,525 N on average as he dived to a depth of 2.5m beneath the water's surface.

Isaac's body experienced an average force of water resistance due to the water surrounding it. This force is determined by the volume and density of the water, as well as the acceleration of his body while it is moving.

First, we need to calculate the volume of the displaced water. We can use the formula:

V = Ah

where A is the surface area of the object and h is the depth to which it sinks. Since we don't have the surface area of Isaac's body, we can assume it to be 1 square meter for simplicity.

V = 1 * 2.5 = 2.5 cubic meters

To calculate the average force of water resistance experienced by his body, we can use the equation

Force = Volume x Density x Acceleration.

Using this equation, we can calculate the force of water resistance as follows:
Force = 2.5m^3 x 1000kg/m^3 x 9.81m/s^2
Force = 24,525 N.

Therefore, Isaac experienced an average force of water resistance of 24,525 N while his body was plunging to a depth of 2.5m below the water's surface.

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The distance between your eye and the image of the butterfly in the mirror is: the same as the distance between your eye and the actual butterfly

The distance between your eye and the image of the butterfly in the mirror is the same as the distance between your eye and the actual butterfly, which is the sum of the distance from your eye to the mirror and the distance from the mirror to the butterfly.

To calculate this, we need to measure the distance from your eye to the mirror, which can be done using a ruler or tape measure, and then measure the distance from the mirror to the butterfly, which can be done using a ruler or tape measure as well. Once we have these two measurements, we can simply add them together to get the total distance between your eye and the image of the butterfly in the mirror.

To clarify further, let's use an example. If your eye is 10 cm away from the mirror and the butterfly is 30 cm away from the mirror, then the total distance between your eye and the image of the butterfly in the mirror is 40 cm. This is because 10 cm (from your eye to the mirror) + 30 cm (from the mirror to the butterfly) = 40 cm.

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Balancing the forces acting on a body is not enough to establish equilibrium because forces are not the only factor involved in determining whether or not an object is in equilibrium.

Equilibrium is established when the forces and torques on an object are balanced. There are two types of equilibria: static equilibrium and dynamic equilibrium.

Static equilibrium is when an object is at rest, while dynamic equilibrium is when an object is moving at a constant speed in a straight line. In both cases, the net force on the object must be zero in order to be in equilibrium. In addition, the net torque on the object must also be zero in order to be in equilibrium. This is because torque is a rotational force that can cause an object to rotate around its center of mass.

Example: A ladder leaning against a wall is a good example of a body that is not in equilibrium even though the forces acting on it are balanced. Even though the weight of the ladder and the force of gravity are balanced, the ladder is not in equilibrium because there is a torque acting on it due to the force of friction between the ladder and the ground. This torque causes the ladder to rotate around its center of mass, which can cause it to fall over if the torque is not countered by another force or torque.

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The earliest telescopes used by astronomers were refractors. The correct option is (d) refractors.

A telescope is an instrument used for observing distant objects or to magnify the size of the observed objects.

Telescopes were invented in the early 17th century, and the earliest ones were refractors, which used lenses to gather and focus light.Refractors are telescopes that use lenses to gather and focus light.

A lens is made up of one or more pieces of glass, and it bends light as it passes through it. A refracting telescope has a long tube that holds the lens at one end and an eyepiece at the other end.

The lens collects the light, and the eyepiece magnifies the image, allowing the viewer to see distant objects in greater detail.Refracting telescopes use lenses to bend and focus light, much like a magnifying glass does.

The objective lens is positioned at one end of the telescope tube, and it collects light from a distant object. The lens bends the light and focuses it at a point in space.

The eyepiece, located at the other end of the tube, magnifies the image created by the objective lens, making it appear larger and more detailed.

The earliest telescopes used by astronomers were refractors. The refracting telescope, also known as a refractor, is a type of telescope that uses lenses to collect and focus light.

The lens gathers the light and focuses it on an eyepiece, which magnifies the image, allowing the viewer to see distant objects in greater detail.

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The outcomes based on whether thermal energy is added or being removed are:

Thermal energy added :

Thermal energy being removed :

When thermal energy is added to a substance, the particles absorb this energy and start moving faster, which means their kinetic energy increases. This leads to an increase in temperature because the faster-moving particles collide with each other more frequently, transferring this extra energy in the form of heat.

Therefore, an increase in temperature and an increase in the kinetic energy of particles result from thermal energy being added, while a decrease in temperature and a decrease in the kinetic energy of particles result from thermal energy being removed.

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Answer:

Part A:

The speed of a wave on the string can be calculated using the formula:

v = fλ

where f is the frequency and λ is the wavelength. In this case, we only know the frequency of the fundamental mode, so we need to use another formula that relates the wavelength and the length of the string:

λn = 2L/n

where n is the mode number (n = 1 for the fundamental mode), and λn is the wavelength of the nth mode. Substituting this expression for λ into the first formula, we get:

v = fn × 2L/n

Substituting the given values, we get:

v = (294 Hz) × 2(0.69 m)/(1)

v = 406 m/s

Therefore, the speed of a wave or pulse on the string is 406 m/s.

Part B:

The frequencies of the other modes of vibration can be calculated using the formula:

fn = nv/2L

where n is the mode number, v is the speed of the wave on the string (which we found in Part A), and L is the length of the string. Substituting the given values, we get:

f2 = (2 × 406 m/s)/(2 × 0.69 m) = 589 Hz

f3 = (3 × 406 m/s)/(2 × 0.69 m) = 883 Hz

f4 = (4 × 406 m/s)/(2 × 0.69 m) = 1178 Hz

Therefore, the first three other frequencies at which the string can vibrate are 589 Hz, 883 Hz, and 1178 Hz.

The principle that states that the buoyant force experienced by an object is exactly equal to the weight of the fluid displaced is known as Archimedes' Principle. What is Archimedes' Principle? Archimedes' Principle is a scientific law that explains how objects behave in fluids (liquids and gases).

The buoyant force of an object in a fluid is equal to the weight of the fluid displaced by the object according to this principle. This principle is valid for any fluid and any object as long as the buoyancy and weight of the object and fluid are calculated correctly.

The force that causes objects to float or sink in fluids is known as buoyancy. The buoyant force on an object is the net upward force exerted by the fluid in which the object is submerged.

When an object is immersed in a fluid, the fluid exerts an upward force on the object. This buoyant force opposes the weight of the object and causes it to float if the buoyant force is greater than the weight of the object.

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To determine the height of the skateboard ramp, we can use trigonometry. We know that the angle of the ramp is 35 degrees and the length of the ramp cannot exceed 4 feet. Let's assume that the height of the ramp is h.

Using trigonometry, we can write:

tan(35 degrees) = h/4 feet

Solving for h, we get:

h = 4 feet x tan(35 degrees)

h = 2.87 feet (rounded to two decimal places)

Therefore, the skateboard ramp needs to be approximately 2.87 feet high to have a 35-degree angle and not exceed a length of 4 feet.

θ = 30°

The elevation angle is 30°.

Detailed explanation:

Given;

Wall height: w = 10 feet

The ramp is 20 feet long.

Angle of elevation equals

making use of trigonometry;

Sin = hypothenic opposite

Where;

Wall height w = opposite (opposite to elevation angle)

Ramp length = hypothenuse

Sinθ = w/l

(w/l) = arcsine

changing the values;

arcsine (10/20) equals

arcsine = (0.5)

θ = 30°

The elevation angle is 30°.

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The region in which it is possible to change the phase of x by raising or lowering the temperature is: phase transition region.

This region is typically marked by an increase in pressure and a decrease in temperature. Temperature and pressure are inversely proportional to one another within this region, meaning that as pressure increases, temperature decreases and vice versa.

The exact temperature and pressure at which the phase transition occurs depends on the type of material being transitioned and its individual characteristics. For example, water boils at 100°C and 1 atm of pressure while other substances may have different boiling points.

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The flywheel would need to rotate at a rate of 725 rev/min to store the given energy.

The rotational kinetic energy of a flywheel is given by the equation:

Ek = 1/2Iω²

where I is the moment of inertia and ω is the angular velocity.

The moment of inertia of a solid disk is given by: I = mr², where m is the mass and r is the radius of the disk.

Thus, substituting the given values, we have:

Ek = 1.93 x 10⁹ J.

Ek = 1/2 * (25.5 kg * (0.284 m)²) * ω²

1.93 x 10⁹ J =  1/2 * (25.5 kg * (0.284 m)²) * ω²

1.93 x 10⁹ J = 102 x 10⁻² ω²

ω² = 1.93 x 10⁹/102 x 10⁻²

ω² = 0.018 x 10⁷

ω² = 18 x 10⁴

 ω = √18 x 10⁴

 ω = 76 x 10² rad/s.

 ω = 7600 rad/s.

Solving for ω, we get ω = 7600 rad/s.

We can convert this to rev/min by dividing by (2*pi) and multiplying by 60, giving us: ω = 725 rev/min.

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Therefore, the tangential acceleration of the inner surface of the wheel between t=0 and t=0.800 s is approximately  [tex]906.5 m/s^2.[/tex]

The rotational frequency f is defined as the number of revolutions per second, which means that the wheel makes 100 revolutions in one second.

The angular velocity ω is the change in angle per unit time, so we can find it by multiplying the rotational frequency by 2π (the number of radians in one revolution):

ω = 2πf = 2π(100 Hz) = 200π radians/second

Now we can use the time interval and the angular velocity to find the angle through which the wheel has turned.

The time interval is Δt = 0.800 s, so the angle through which the wheel has turned is:

θ = ωΔt = (200π radians/second)(0.800 s) = 160π radians

The circumference of the inner surface of the wheel is C = πd, where d is the diameter of the wheel.

C = π(231 cm) = 725.4 cm

The tangential acceleration a_t is the acceleration of a point on the rim of the wheel, perpendicular to the radius.

We can use the formula for tangential acceleration:

a_t = rα

where r is the radius of the wheel and α is the angular acceleration.

We can find the radius of the wheel by dividing the diameter by 2:

r = d/2 = 231 cm/2 = 115.5 cm

Now we can find the angular acceleration by using the formula:

α = Δω/Δt

where Δω is the change in angular velocity and Δt is the time interval.

We know the initial angular velocity (zero), so we can find the change in angular velocity by subtracting the initial angular velocity from the final angular velocity:

Δω = ω - ω_0 = 200π radians/second - 0 radians/second = 200π radians/second

So the angular acceleration is:

α = Δω/Δt = (200π radians/second)/(0.800 s) = 250π [tex]radians/second^2[/tex]

Finally, we can find the tangential acceleration by multiplying the radius by the angular acceleration:

a_t = rα = (115.5 cm)(250π radians/[tex]second^2[/tex]) = 28875π [tex]cm/second^2[/tex]

a_t = 288.75π [tex]m/s^2[/tex]

Using a calculator, we get:

a_t ≈ 906.5 [tex]m/s^2[/tex] (rounded to one decimal place)

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The formula for calculating capacitance is as follows:

C = Q/V

Where,

C = capacitance (Farads)

Q = charge (Coulombs)

V = voltage (Volts)

As given,

Q = 27.0 μC

V = 9.00 V

Substituting the given values in the above equation

C = 27.0 μC/9.00 V = 3.00 μF

Therefore, the value of capacitance is 3.00 μF.

The formula for calculating charge stored is as follows:

Q = CV

Where,

Q = charge (Coulombs)

C = capacitance (Farads)

V = voltage (Volts)

As given,

C = 3.00 μF

V = 12.0 V

Substituting the given values in the above equation,

Q = (3.00 × 10⁻⁶ F) × 12.0 V = 36.0 μC

Therefore, the charge stored is 36.0 μC.

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A net force of 10 N acts on the rock when it is halfway to the top of its path.

The net force acting on the rock can be calculated using the following equation:

Fnet = ma

Where Fnet is the net force, m is the mass, and a is the acceleration.

When the rock is halfway to the top of its path, its velocity is zero since it momentarily stops at the top of its motion. As a result, its acceleration is equal to the acceleration due to gravity, which is -10 m/s² since it is acting in the opposite direction to the upward direction. This is the gravitational force acting on the rock.

We can now calculate the net force acting on the rock at this point in its motion:

Fnet = ma

Fnet = (1 kg)(-10 m/s²)

Fnet = -10 N

Since the acceleration due to gravity is acting downward and the rock is moving upward, the net force is equal to the force of gravity, which is 10 N.

Therefore, the net force that acts on the rock when it is halfway to the top of its path is -10 N or 10 N in the downward direction. This net force is equal in magnitude to the weight of the rock.

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The potential difference between the head and the tail of a displacement vector that points at right angles to a uniform electric field is zero (0).

A uniform electric field refers to the electric field having the same magnitude and direction at all points in space. A uniform electric field is created by two parallel plates that have the same charge density and are close enough to each other that the edges can be ignored. The electric field strength of a uniform electric field is constant, which means that the direction and magnitude are the same at all points in space.

The potential difference between the head and tail of a displacement vector that points at right angles to a uniform electric field is zero (0). It is because the potential difference between two points is equal to the negative of the work done per unit charge in moving a positive test charge from one point to another point. When a displacement vector that points at right angles to a uniform electric field is moved from one point to another, no work is done because the electric field and displacement vector are perpendicular. As a result, the potential difference is zero.

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The answer is that the radio waves will arrive first at the Earth when a star emits red light, blue light, x-rays, and radio waves.

This is due to the fact that radio waves are long-wavelength electromagnetic radiation. As a result, they are less likely to be impeded or absorbed by the intervening space medium, and they can propagate without being affected by any other disturbances in the cosmos.

Furthermore, radio waves are not influenced by the earth's atmosphere, which is responsible for interfering with the passage of light rays to the surface of the earth. In other words, radio waves can traverse enormous distances in space without being obstructed or attenuated by any physical barrier.

Light rays, on the other hand, propagate via a straight line, which is known as the line of sight. Light rays may be deflected or absorbed by cosmic dust, gas clouds, or other materials found in interstellar space. This may cause them to travel in different directions, which might cause them to be redirected from their initial path. As a result, light rays must contend with these obstacles before reaching the earth, which may cause them to be weakened or distorted by the time they arrive.

Similarly, X-rays are also electromagnetic radiation but they are absorbed by interstellar matter. They are also affected by magnetic fields, and they might be redirected from their path as a result of the interstellar medium. This might cause them to be slowed down and travel a longer distance, making their journey longer.

Thus, radio waves will arrive first because of their long wavelength and low interaction with cosmic matter.

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The current flowing through an electric motor is 0.6 A, and it flows for 8 min, coulombs of charge flow through it during that time are: 288

When current flows through a device, electric charge flows through the device, and electric energy is dissipated or consumed. Electric current is the amount of electric charge flowing past a point in a specified amount of time. The electric charge is transported through the wire from one end to the other.

The standard unit of charge is the coulomb, and it is defined as the amount of charge that passes a point in a conductor carrying a current of one ampere in one second. Given that the current flowing through an electric motor is 0.6 A, and it flows for 8 min, we can calculate the total charge flowing through it using the formula,

[tex]Q = I × tCharge, Q = 0.6 × 8 × 60[/tex]

As the charge Q is in coulombs, we need to convert the time from minutes to seconds, which is why we multiplied the time by 60. The result is 288 coulombs of charge that flowed through the electric motor during the 8 minutes. The electric motor transforms electrical energy into mechanical energy.

When a current flows through a wire, an electric field is created around the wire, and the charges in the wire experience a force. As a result, the wire is pushed in a certain direction, and the electric motor begins to rotate.

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A two-slit interference pattern exhibits both a double-slit pattern and a single-slit pattern due to the diffraction of light waves, and the spacing of the two-slit pattern is narrower due to interference between the waves passing through each slit.

Therefore a two-slit pattern occurs when

Therefore, when the two sets of diffracted waves overlap, they produce an interference pattern that consists of both the diffraction pattern from each individual slit and the interference pattern resulting from the overlapping waves.

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Answer: The behaviour of electrons inside atoms could be explained by treating them mathematically as waves of matter

Explanation:

Erwin Schrödinger proposed the quantum mechanical model of the atom, which treats electrons as matter waves.

Answer:

[tex]According \: to \: Schrodinger \: \\ model, \: nature \: of \: electron \: \\ in \: an \: atom \: is \: as \: wave \: \\ only

[/tex]

The mass of the object would be 58.4 kg.

The problem can be solved using Newton's second law of motion, which states that the net force (F_net) acting on an object is equal to the mass (m) of the object multiplied by its acceleration (a):

F_net = m*a

We are given that the net force acting on the object is 328 N, and we know the object's acceleration from the change in velocity over time:

a = (final velocity - initial velocity) / time

a = (18 m/s - 0 m/s) / 3.2 s

a = 5.625 m/s^2

Substituting these values into the equation for Newton's second law, we get:

328 N = m * 5.625 m/s^2

Solving for m, we get:

m = 328 N / 5.625 m/s^2

m ≈ 58.4 kg

Therefore, the mass of the object is approximately 58.4 kg.

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The equivalent resistor for the resistors 3,486 and 760 connected in parallel is approximately 623.7 ohms.

To find the equivalent resistor for resistors 3,486 and 760 connected in parallel, you can use the formula:

1 / Req = 1 / R1 + 1 / R2

where Req is the equivalent resistor, R1 is the first resistor (3,486), and R2 is the second resistor (760).

Step 1: Calculate the reciprocals of the individual resistors:
1 / R1 = 1 / 3486 ≈ 0.000287
1 / R2 = 1 / 760 ≈ 0.001316

Step 2: Add the reciprocals together:
1 / Req = 0.000287 + 0.001316 = 0.001603

Step 3: Find the reciprocal of the sum to get the equivalent resistor:
Req = 1 / 0.001603 ≈ 623.7

The equivalent resistor for the resistors 3,486 and 760 connected in parallel is approximately 623.7 ohms.

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The positively charged object gains 20 electrons when its charge decreases by 3.2 x 10^-18 C.

What is Positive Charge?

A positive charge is an electrical property of matter that describes the presence of more positively charged protons than negatively charged electrons in an atom or molecule. In other words, an object with a positive charge has lost one or more electrons, resulting in a net charge that is greater than zero.

We know that the charge on a single electron is 1.602 x 10^-19 C.

To calculate the number of electrons gained by a positively charged object when its charge decreases by 3.2 x 10^-18 C, we can use the formula:

number of electrons = (magnitude of charge lost) / (charge on a single electron)

number of electrons = (3.2 x 10^-18 C) / (1.602 x 10^-19 C)

number of electrons = 20

Therefore, the positively charged object gains 20 electrons when its charge decreases by 3.2 x 10^-18 C.

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The actual mechanical advantage of the system would be 0.573.

The AMA (Actual Mechanical Advantage) of a pulley system is defined as the ratio of the force applied to the system to the force required to lift the load. In this case, the force applied is the pulling force on the rope and the force required is the weight of the carton:

AMA = force applied / force required

To calculate the force required, we need to use the weight formula:

force required = weight = mass x gravity

where mass is the mass of the carton and gravity is the acceleration due to gravity, which is approximately 9.81 m/s^2.

mass = weight / gravity = 225 N / 9.81 m/s^2 ≈ 22.9 kg

force required = 22.9 kg x 9.81 m/s^2 ≈ 225 N

Now we can calculate the AMA:

AMA = force applied / force required = 129 N / 225 N = 0.573

Therefore, the AMA of the pulley system is approximately 0.573.

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