Answer:
16.6 NExplanation:
We know the relation :
Force = Mass x AccelerationWe are given that :
Mass = 2.0 kgAcceleration = 8.3 m/s²Hence, on substituting the values in the equation :
F = 2.0 x 8.3F = 16.6 NThe given information is,
→ Mass = 2 kg
→ Acceleration= 8.3 m/s
→ Force = F (in Newton)
Now we have to find the,
→ Amount of force applied to the object.
Formula we use,
→ F = Mass × Acceleration
Then the amount of force will be,
→ F = Mass × Acceleration
→ F = 2 × 8.3
→ [ F = 16.6 N ]
Hence, the amount of force is 16.6 N.
Please select all Non-Locomtor movements.
Pull
Run
Bend
Leap
Answer:
(1) Pull
(2) Bend
Those two are Non-Locomotor movements while others are Locomotor movements.
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In what part of the atom are the
protons located?
A. in the nucleus Thy
B. in the neutron
C. in the electron
Answer:
In the neucleus :)
Explanation:
Protons are found insidde of the neucleus of an atom. Electrons are found on the outside of the neucleus. :)
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Answer:
nucleus
Explanation:
Protons ans nuetrons are inside the nucleus
What will happen if there is no oxygen for 2mins???
Without oxygen, there would not any fire and the combustion process in our vehicles would stop. Every mode of transport except electric would fail instantly. Planes flying high in the sky would fall on earth and millions of cars running on petrol and diesel would stop on the roads.
Roxanne’s italian teacher was talking about how adjectives are placed after the noun, unlike in english. the teacher is instructing the students in the __________ of italian. semantics morphemes phonemes syntax
The teacher is instructing the students in the syntax of italian.
What is an adjective?Adjectives are words that are used in English language to modify or describe a noun or a pronoun. Usually, adjectives are placed before the nouns they modify.
But creation of sentence, using words, to form a meaning the adjective can be placed after a noun. This is seen in formation of sentences using Italian language.
Syntax is the arrangement of words to creat a meaningful sentence. The most basic syntax follows a subject + verb + direct object formula.
Therefore, the teacher is instructing the students in the syntax of italian.
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Answer:
d. syntax
Explanation:
A 3.0- resistor is connected in parallel with a 6.0- resistor. This combination is connected in series with a 4.0- resistor. The resistors are connected to a 12-volt battery. How much power is dissipated in the 3.0- resistor
Answer:
5.33 w
Explanation:
parallel resistors equivalent r = r1 r2 /(r1+r2) = 2 ohm
in series with 4 ohm resistor makes total r = 6 ohms
12 v / 6 ohm = 2 amps current
2/3 of the current will go through the 3 resistor
2/3 * 2 = 4/3 amp
power = I^2 R = 4/3 ^2 * 3 = 5.33 watts
A spring hangs at rest from a support. If you suspend a 0.46 kg mass from the spring it elongates 0.79m.
A) Determine the spring constant.
B) Calculate the elongation if you put a .75kg mass on the spring.
a. The restoring force in the spring has magnitude
F[spring] = k (0.79 m)
which counters the weight of the mass,
F[weight] = (0.46 kg) g = 4.508 N
so that by Newton's second law,
F[spring] - F[weight] = 0 ⇒ k = (4.508 N) / (0.79 m) ≈ 5.7 N/m
b. Using the same equation as before, we now have
F[weight] = (0.75 kg) g = 7.35 N
so that
(5.7 N/m) x - 7.35 N = 0 ⇒ x = (7.35 N) / (5.7 N/m) ≈ 1.3 m
Two moles of helium gas initially at 321 K
and 0.42 atm are compressed isothermally to
1.83 atm.
Find the final volume of the gas. Assume
that helium behaves as an ideal gas. The
universal gas constant is 8.31451 J/K·mol.
Answer in units of m^3
If the helium behaves as an ideal gas, its final volume is 0.13m³.
Ideal Gas Law
The ideal gas law states "that pressure multiplied by volume is equal to moles multiply by the universal gas constant multiply by temperature of gas. It is expressed;
PV = nRT
Where P is pressure, V is volume, n is the amount of substance, T is temperature and R is the ideal gas constant.
Given the data in the question;
Amount of helium gas; n = 2molTemperature T = 321KPressure P = 0.42atm = 42556.5PaUniversal gas constant R = 8.31451 J/K·mol = 8.31451 m³Pa/KmolVolume V = ?To determine the volume of the helium gas, we substitute our given values into the expression above.
PV = nRT
V = nRT / P
V = ( 2mol × 8.31451 m³Pa/Kmol × 321K ) / 42556.5Pa
V = 5337.91542m³Pa / 42556.5Pa
V = 0.13m³
Therefore, if the helium behaves as an ideal gas, its final volume is 0.13m³
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5) Which of these explanations best describes how a gene is expressed to make a protein?
A) The instructions in DNA are used to produce an RNA molecule that is used to build a protein at the ribosome.
B) The DNA copies its entire genome into RNA, which is then broken into gene components that are translated at the ribosome.
The specific gene that codes for a protein leaves the nucleus of a cell and travels through the cytoplasm to the ribosome.
D) A specific gene is removed so that it can be copied and then transcribed into RNA, which is used to build the protein in the nucleus.
Answer:
I need to look at the first choice is D) A specific gene is removed so that it can be copied and than transcribed into RNA, which is used to build the protein in the nucleus.
Explanation:
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How does friction affect object acceleration down an incline?
Friction is the force that acts on the opposite side of direction of force, thus it manages to decelerate an object, so it acts upward along the plane
If a gas has the same temperature throughout, which gas molecule has the highest average velocity?
Answer:
H2
Explanation:
The highest average velocity is H2.
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Anygays-
Which gives you a frame of reference for your speed when you are riding a train?
Answer:
anything stationary
Explanation:
anything that is not moving outside the train like passing trees or the train's station is considered to be a frame reference.
When there's a hazard ahead, it's almost always quicker for you to _________ than to come to a full stop.
When there's a hazard ahead, it's almost always quicker for you to steer away than to come to a full stop.
What is an hazard?Hazard refers to any obstacle or other feature which causes risk or danger.
Living organisms respond to hazards via the production of adrenaline hormone. This hormone causes a flight response away from the hazard.
Therefore, when there's a hazard ahead, it's almost always quicker for you to steer away than to come to a full stop.
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Determine the energy in ev of a photon when electron transit from third level to the first level
energy of hydrogen atom *
A) 12 ev
B) O 1.2 ev
C) 0.12 ev
Answer:
One way of writing frequency difference for "Lyman" series is
f = 3.289 * 10^15 (1 / 1^2 - 1 / n^2)
f = 3.289E15 * (1 - 1/9) = 2.924E15 as frequency difference of terms
E = h f = 6.63E-34 * 2.924E15 = 1.938E-18 Joules
1 eV = 1.60 * 10^-19 Joules
1.938 / .16 = 12.1 eV
According to Newton's 1st Law of Motion, a moving object will move forever at a constant rate in the same direction. Why do objects stop moving?
Please help!
Answer:
Object stop moving when the force which is friction that acts to resist sliding between two touch-ing surfaces is not present
Answer:
See below ~
Explanation:
Newton's 1st Law of Motion : "An object in motion (or rest) will stay in motion (or rest) unless acted upon by an unbalanced force.
Objects stop moving due to the application of forceAn ball rolling on the road stops due to the frictional force of the roadAn apple falls from the tree due to gravitational forceWe can alter the motion of a football by applying force
Amjad holds a brass cylinder in each hand. Cylinder A
has a mass of 100.0 g and cylinder B has a mass of 300.0 g. What upward forces do his two hands exert to keep the cylinders at rest? If he then drops the two, with what acceleration do they fall? (Ignore air resistance.)
(with explanations)
Answer:
oh hi chimmy
Explanation:
jimmi jimmi jimin
Answer: 0.98N for Cylinder A and 2.943N for Cylinder B
Explanation:
Cylinder A = 100g = 100*10^-3kg =0.1kg
Cylinder B = 300g = 300*10^-3kg = 0.3kg
gravitational force g= 9.81m/s^2
For cylinder A Force = mg= 0.1*9.8=0.98N
For Cylinder B Force = mg= 0.3*9.81= 2.943N
34. Identify the bond in SO3.
a. covalent
b. ionic
c. metallic
d. metalloid
Answer:
The answer is A.) Covalent
Explanation:
They share a double covalent bond.
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-Justin ! :)
Does any substance exist that has particles with no motion? Explain your position
Answer:
solid
Explanation:
In a solid, particles are packed tightly together so they don't move much. The electrons of each atom are constantly in motion, so the atoms have a small vibration, but they are fixed in their position. Because of this, particles in a solid have very low kinetic energy.
Describe at least one technological application of radioactive decay that can benefit human health.
Answer:
Radiotherapy
Explanation:
Answer:
Radioisotopes are used in medicine as tracers to detect and diagnose medical problems. Radioisotopes are also used in radiation therapy to treat cancer.
Explanation:
sample answer on edge:3
Which of the following lists of elements is ordered by increasing number of valence electrons?
A.Li,C,O,F
B. F, O, N, C
C. O, S, Se, Te
D. Sr, Ca, Mg, Be
The list of elements with increasing number of valence electrons are Sr, Ca, Mg, Be.
What is valence electrons?Valence electrons are the electrons that is found at the outer shell of an atom which make the atom to form a chemical bond in which each atom involve contribute one or more valence electrons to form the bond.
Therefore, The list of elements with increasing number of valence electrons are Sr, Ca, Mg, Be.
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"In billiards, the cue ball has a mass of .17 kg and the other balls have masses of .16 kg. The cue ball, traveling at 2.9 m/s, strikes the 9-ball, which is at rest. After this collision, the cue ball continues at 0.5 m/s. What is the velocity of the 9-ball after the collision?"
Provide the magnitude of the velocity of the 9-ball after the collision (number only).
Answer:
2.55 m/s
Explanation:
Conservatiopn of momentum (momentum = mv )
the momentum before = momentum after
.17(2.9) = .17(.5) + .16 v
v = 2.55 m/s
A car starts from rest and accelerates to 14 m/s in 2 seconds. What was its acceleration
Answer:
7m/s^2
Explanation:
using v=u+at
since the car started from rest, u=0 , v=14m/s t=2s
a =acceleration.
14=0+a×2
14=0+2a
14=2a
a= 14/2 =7
a=7m/s^2
If a car driver suddenly makes a sharp turn, the passenger slides to the side of the car because of
Your answer:
Answer:
Inertia
Explanation:
It is inertia that causes the passengers to move toward the right side of the car. As the car swerves to left, passengers' body continues their motion as hitherto and as such it causes the passengers to move toward the right side of the car.
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Answer:
inertia
Explanation:
how do two positive electric charges react to each other?
Answer:
The two positive electric charges repel each other. If a positive charge and a negative charge interact, their forces act in the same direction, from the positive to the negative charge. As a result opposite charges attract each other: The electric field and resulting forces produced by two electrical charges of opposite polarity.
Explanation:
Hope this helps!
-PBvibes
<3
Answer:
they repel each other
Explanation:
If a positive charge and a negative charge interact, their forces act in the same direction, from the positive to the negative charge. As a result opposite charges attract each other: The electric field and resulting forces produced by two electrical charges of opposite polarity.
When a chunk of cosmic material the size of a golf ball or a baseball hits the Earth's atmosphere it makes a
When a chunk of cosmic material the size of a golf ball or a baseball hits the Earth's atmosphere it makes a fireball.
What is meteor shower?Meteor shower is an event that occurs when tiny particles of stones that are of the size of a golf ball or baseball hits the earth's atmosphere.
As the particles enters the earth's atmosphere, they create friction through rubbing against the particles of the air. This eventually causes the particles to heat up leading to the formation of a fireball.
Meteor shower usually occurs between midnight and the very early hours of the morning.
Therefore, when a chunk of cosmic material the size of a golf ball or a baseball hits the Earth's atmosphere it makes a fireball.
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Blurry bright waves against a dark blue background. gina was summarizing what she read to her friends and shared this image, calling it a digital signal. is she correct in saying this? explain your answer.
Answer:
Gina is not correct, she is not using digital signals to share the information.
Explanation
Looking at the question carefully, the type of information shared by Gina is words (when she reads to her friends) and images that she shared with her friends later on. Therefore, neither of the information she shared is discrete(0 and 1) to represent information.
Hence, we can say that Gina is not correct, she is not using digital signals to share the information.
Explanation:
Answer:
The image shows a continuous signal and is not made of numbers, so this signal is an analog signal. Gina is not correct in her identification of the signal.
Explanation:
A light ray moving from oil (n=1.38) into an unknown material. If the light is incident at 35 and refracts at 23, what is the index of refraction in the unknown material?
The index of refraction of the unknown material in which a ray of light is incident at 35° and refracted at 23° is 2.03
Snell's lawindex of refraction (n) = Sine i / Sine r
n = Sine i / Sine r
Where
i is the angle of incidence r is the angle of refraction How to determine the refractive indexFrom the question given above, the following data were obtained:
Index of refraction of oil (nₒ) = 1.38Angle of incidence (i) = 35°Angle of refraction (r) = 23°Index of refraction of unknown material (nᵣ) =?nₒSine i = nᵣSine r
1.38 × Sine 35 = nᵣ × Sine 23
Divide both side by Sine 23
nᵣ = (1.38 × Sine 35) / Sine 23
nᵣ = 2.03
Thus, the index of refraction of the unknown material is 2.03
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The most straightforward way to determine the distance to a nearby star involves the measurement of the: ________
Answer:
The Answer is Star's Parallax.
Explanation:
It is the straighforward way to determine to find the distance to a nearby star.
What is the argument the author presents in lines 8-10? A) One is not expected to retaliate to threats and injury. B) One is not expected to simply accept threats and injury. C) One is expected to understand the likelihood of threats and injury. D) One is not expected to threaten, harm or injure people or property.
We can actually see that the argument the author presents in lines 8-10 is: D. One is not expected to threaten, harm or injure people or property.
What is argument?Argument, refers to the statement (s) that are made with the intention of determining the degree of truth of another statement.
We see here that the author presents an argument in lines 8-10 and the argument is "one is not expected to threaten, harm or injure people or property."
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If a 10 kW device is used for 15 mins then the amount of energy transferred is
Answer:
9,000,000J
Explanation:
10kW is converted to Joules by multiplying 1000. Which is 10000W
15 minutes is converted to seconds, which is 900s
Energy transfer is Power(J) × Time(s)
so: 1000× 900
=9,000,000 J or 9000 kJ
At peak brightness, the white dwarf supernova is approximately __________ times as luminous as the massive star supernova at its peak brightness.
Answer:
3
Explanation:
3 times as lumiunous