Answer:
54 km/hr
Explanation:
m/s to km/hr => 18/5
15 m/s to km/hr => 15 x 18/5 =>3 x 18 => 54km/hr
6300 divided by 32.8
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Weigt A box sitting still on the ground by itself has a weight of 700N, what is the mass? (gravity's acceleration is 9.80 m/s2)
Using newtons law
[tex]\\ \rm\longmapsto F=ma[/tex]
[tex]\\ \rm\longmapsto m=\dfrac{F}{a}[/tex]
[tex]\\ \rm\longmapsto m=\dfrac{700}{9.8}[/tex]
[tex]\\ \rm\longmapsto m=71.4kg[/tex]
a leaver raised 500N lode using 200N effort. if load distance and effort distance are 20 cm and 60 cm respectively, calculate mechanical advantage, velocity ratio and efficiency of this lever.
Answer:
Ans:
Explanation:
MA=L/E=500N/200N=5/2
VR=ED/LD=60cm/20cm=3
Thus, Efficiency=(Ma*100%)/VR=83.34%
I just need a little starter for this paragraph!
Answer:
The north part of the compass needle is attracted to the magnetic south pole of Earth, which is also known as the geographical north pole. When it comes to magnets, opposites attract. This fact means that the north end of a magnet in a compass is attracted to the south magnetic pole, which lies close to the geographic north pole. Magnetic field lines outside of a permanent magnet always run from the north magnetic pole to the south magnetic pole. Therefore, the magnetic field lines of the earth run from the southern geographic hemisphere towards the northern geographic hemisphere.
Explanation:
What is the Unit Of Electric current and Who is the Unit named after??
Pls help Asap
Answer:
Amperes
Explanation:
It is named after a French physicist André-Marie Ampère.
HOPE THIS HELPED
The unit of electric current is Ampere, and it is named after the French physicist André-Marie Ampère (1775 - 1836).
Hope it's helpfulRight hand rule exercise
1. A wire in a magnetic field is acted on by a force into the plane of the page as shown
below.
F
What is direction of current induced in the wire?
A) Downwards
B) Upwards
2. A wire in a magnetic field is acted
busforce
Answer:
A yxiigxih5dd8yixc99uf8g
S=1/2(u+v)t
i. u as subject
ii. V as subject
Answer:
i. [tex]u=\frac{2s}{t}-v[/tex]
ii. [tex]v=\frac{2s}{t}-u[/tex]
Explanation:
i.)
[tex]s=\frac{1}{2}(u+v)t\\\\2s=(u+v)t\\\\\frac{2s}{t}=u+v\\\\\frac{2s}{t}-v=u[/tex]
ii.)
[tex]s=\frac{1}{2}(u+v)t\\\\2s=(u+v)t\\\\\frac{2s}{t}=u+v\\\\\frac{2s}{t}-u=v[/tex]
Name the different forms of energy.
1.Chemical energy
2.Electrical energy
3.Radiant energy
4.Mechanical energy
5.Thermal energy
6.Nuclear energy.
Answer:
thermal energy is the different forms of energy
what are fundamental and derived unit
Answer:
Fundamental units are all those units which are independent of any other unit (including themselves). Derived units are all those units which are obtained by multiplying and/or dividing one or more fundamental units with or without introducing any other numerical factor.
A box is 300 kg & it covers the area of 150 m2 find the pressure exerted by the box in the ground.
Answer:
If we assume that the box is a cube with 150 m² surface area
Area of 1 face = 150 m² / 6 = 25 m²
The box will exert a downward force of
Force = mass * acceleration due to gravity
Force = 300 kg * 9.81 m/s² N
Force = 2943 N
The box exerts a pressure ( force / unit area) = 2943 N / 25 m²
Pressure = 117.7 N/m²
Thank you, if you found this helpful please comment.
Describe a procedure the student could use with the lab setup shown in order to determine the average velocity of the marble as it travels down the inclined ramp. Include what variables would need to be measured and how to measure them.
Variables - Initial position, Final position, Distance between Positions, Time.
Instruments - Ruler (Distance between Positions), Chronometer (Time)
Average Velocity is equal to the change in Position divided by Time. Since Incline is a Straight Line, then Position Change and Traveled Distance are the same. In this case, we need to define Initial and Final Position of the marble, and then we have to measure the distance between these Points.
Distance between Initial and Final Position can be measured by a Ruler, whereas Time can be measured by a Chronometer.
In a nutshell, Initial and Final Position and Time are variables needed to be measured. Besides, Distance between Initial and Final Position can be found by means of a Ruler, and Time is found with the help of a Chronometer.
Please see this question related to concept of Average Velocity: https://brainly.com/question/862972
helpppppppppppppppppppppppppp
Answer:
should be D
Explanation:
pls make this the brainliest
ILL MARK BRAINILESS IF YOU DO THIS CORRECTLY
Pick one of the three people and explain why they are famous/known for and how this relates to physics. Isaac Newton, Benjamin Franklin, or Galileo Galilei. 1) An introductory statement (aka: A Hook) 2) A Thesis statement (aka: Something to Prove) 3) Three reasons to support your thesis. 4) If you are feeling fancy, a conclusion.
Answer:
GALELOI GALELEI:HE WAS A FAMOUS SCIENTIST WHO MADE PENDULAM ALSO HE EXPLAINED THE MOTION AND INERTIA
ISAAC NEWTON:3 LAWS OF MOTION,3 FORMULAS OF MOTION,GRAVITY
3. The xylem and phloem arranged side by side on same radius is called a) radial b) amphivasal c) conjoint d) None of these 4. Which is formed during anaerobic respiration a) Carbohydrate b) Ethyl alcohol b) Acetyl Coa d) Pyruvate 10th Standard Science 184
[tex]\huge{ \color{violet}{ \boxed{ \color{hotpink}{Answer}}}}[/tex]
3. The xylem and phloem arranged side by side on same radius is called
a) radialb) amphivasal ⚘ C) Conjoint ⚘ d) None of these[tex] \: [/tex]
4. Which is formed during anaerobic respiration
a) Carbohydrate ⚘ B) Ethyl alcohol ⚘ b) Acetyl Coa d) Pyruvate 10th Standard Science 184[tex] \: [/tex]
[tex]\large\tt\:⚘ \: MishiChaeYoon \: ⚘[/tex]
Which statement is true?
A. When a gas condenses to a liquid, it absorbs energy.
B. When water boils, it releases energy.
C. When ice melts, it absorbs energy.
D. When water freezes, it absorbs energy.
Explanation:
The correct answer is option B
Answer:
C. When ice melts, it absorbs energy.
Explanation:
When ice melts, it is getting hotter by absorbing energy and changes from a solid to a liquid. This is an endothermic reaction.
what is the total number of natural element ?
Answer:
94
Explanation :
Of these 118 elements, 94 occur naturally on Earth. Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94.
source: Wikipedia
For a transverse wave, what is a wavefront?
Answer:
A wavefront is the long edge that moves, for example, the crest or the trough. Each point on the wavefront emits a semicircular wave that moves at the propagation speed v.
Answer:
A wavefront is a surface containing points affected in the same way by a wave at a given time such as crest and troughs
initially theres a magnetic field of 1.1T through the center of the coil at a right angle.The magnitude reverses direction in 0.1secs. Calculate the average current flowing in the solenoid during this time interval .
Answer:
Explanation:
the aversge is 3.4t
if the density of mercury is 13600kg/m³. calculate the amount of Mercury found in 5m³of volume
Explanation:
Relative density of mercury = 13600 Kgm-3/1000 kg m-3 = 13.6.
How long do Living to Serve projects last?
Answer:
It only took me an hour
Explanation:
a truck starts to move from rest if it given the acceleration of 3 metre per second square in 5 second calculate the final velocity and distance covered by truck in full process
How do you use a Beam Balance???
Your answer is in the attachment . Hope this helps.
why knowledge of measurement is important for everyone.
Here are some basic SI units .
Temp-Kelvin(K)Mass-KgDistance=meter(m)Force-Newton(N)under what condition do the values of gravitational force and gravitational constant become same or equal
Answer:
The values of gravitational force and gravitational constant become same or equal when product of masses involved equals the square of distance between them.
Waves are created on the surface of water when we drop a stone into it. Similarly you must have seen the waves generated on a string when both its ends are held in hand and it is shaken. Light is also a type of wave called the electromagnetic wave. Gamma rays, X-rays, ultraviolet rays, infrared rays, microwave and radio waves are all different types of electromagnetic waves. Astronomical objects emit these waves and we receive them using our instruments. All our knowledge about the universe has been obtained through these waves. Gravitational waves are a very different type of waves. They have been called the waves on the fabric of space-time. Einsteine predicted their existence in 1916. These waves are very weak and it is very difficult to detect them. Scientists have constructed extremely sensitive instruments to detect the gravitational waves emitted by astronomical sources. Among these, LIGO (Laser Interferometric Gravitational Wave Observatory) is the prominent one. Exactly after hundred years of their prediction, scientists detected these waves coming from an astronomical source. Indian scientists have contributed significantly in this discovery. This discovery has opened a new path to obtain information about the Universe. i. Which type of wave a light ray is ? (1 marks) ii. What type of rays are Gravitational waves called ? (1 marks) iii. Why are the gravitational waves difficult to detect ? (1 marks) iv. Give any four examples of electromagnetic waves.
Answer:
gdfhf
Explanation:
jjjjcjbwwfbooob#kkkkkkkki!vdvdiiiiiibl#dnqljuwhgeyehrhrygrgdyhehegegeggegegegeegegegevegwgegegegsjkegsygegdydheheyrteeeudgeedyeyrfURGENT
Find the total
equivalent
resistance for the
circuit.
Answer:
[tex]20 + 10 = 30 \\ 30and50 in \: parallel \\ = \frac{50 \times 30}{50 + 30} \\ = \frac{1500}{80} \\ 18.75 \\ 30nd40parallel \\ \frac{30 \times 40}{70} \\ \frac{1200}{70} = 17.143 \\ total = 18.75 + 17.143 = 35.893ohm \\ thank \: u[/tex]
Answer:
[tex]20 + 10 = 30 \\ \\ \frac{50 \times 30}{50 + 30} \\ \\ \frac{1500}{80} \\ \\ = 18.45 \\ \\ = second \: \\ \\ \frac{30 \times 70}{70} \\ \\ \frac{1200}{70} \\ \\ = 17.143 \\ \\ total = 18.45 + 17.143 \\ \\ = 35.830hm[/tex]
A shift inward of the production possibilities curve signifies that _
A. The demand for the products has increased, so the supply will increase
B. The available resources have increased, so potential production levels will increase
C. The available production resources have decreased, so potential production levels will decrease
D. The demand for the products has decreased so, the supply will decrease
Answer:
c
Explanation:
A shift inward of the production possibilities curve signifies that: C. The available production resources have decreased, so potential production levels will decrease.
A production possibilities curve (PPC) is also referred to as production possibilities frontier (PPF) and it can be defined as a curve that illustrates the maximum (best) combinations of two (2) products which can be produce in an economy if they both depend on these two (2) main factors;
Fixed technology. Fixed resources.Basically, the production possibilities curve (PPC) illustrates the maximum combinations of goods that are available with fixed technology and resources.
Furthermore, an inward shift of the production possibilities curve (PPC) signifies that the available resources used for production have decreased, so potential production levels would also decrease.
Read more: https://brainly.com/question/17053992
2 ways that angular and linear momentum are alike and different
Answer:
Angular momentum is inertia of rotationmotion. Linear momentum is inertia oftranslation motion. The big difference is that the type of motion which is related to each momentum is different.
explain buoyancy in one sentence
Answer:
the tendency of a body to float or to rise when submerged in a fluid testing an object's buoyancy.
Explanation:
The meaning is from Merriam Webster for more such unique nd it also has easy meanings you can download that
(Source Merriam Webster)
Hope it helps unnie
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Anything that displaces fluid is acted on by an upward force equal to the weight of the displaced fluid.
multipling vectors
what's the answer of this
a= 3cm, 90°
b=4cm, 0°
A×B vector=??
Answer:
12
Explanation:
A x B = |A||B|sin ©
A x B = 3x4 sin 90
= 12