PHYSICS HIGH SCHOOL

During which changes of state do atoms that cannot move past one another become free to move?

Answers

Answer 1

Answer: from solid to liquid. also known as melting
from solid to gas known as sublimation

Answer 2

Answer:

Sublimation and melting

Explanation:

Related Questions

Which statement is a correct expression of the Law of Conservation of Mass?A.The total mass is unpredictable in a chemical reaction.B.The total mass remains the same during a chemical reaction.C.The total mass decreases during a chemical reaction.D.The total mass increases in a chemical reaction.
What are organelles?Which part of a cell holds organelles?
What do an electron and a neutron have in common? Each particle has a mass of 1 amu.Each particle exists inside an atom. Each particle has an electrical charge.Each particle is located in the nucleus.
What was the main effect of the Equal Employment Opportunity Act of 1972?A. It prohibited discrimination based on age. B. It extended the provisions of the Pregnancy Discrimination Act. C. It extended the provisions of Title VII to previously exempt employers. OD. It prohibited different wages for men and women performing the same work.
Define density and give its SI unit

A wrench reduces the force needed to tighten a bolt. For this statement to be true, the wrench _____.

Answers

Answer:

Increases the input force and decreases the input distance

Explanation:

When a force is applied over a given distance, there is an inverse relationship between the applied force and distance. Example is a tommy bar, when the length increases the force required decreases. This principle is applied to this wrench.

It is B, I honestly didn't know

Which of the following types of energy originates below Earth's surface?A. electrical energy
B. geothermal energy
C. mechanical energy
D. electromagnetic energy

Answers

Geothermal energy. Electromagnetic energy originates at the sun (think UV rays; they are part of the electromagnetic spectrum). Electrical energy technically can be anywhere, as long as there are positive and negative charges. Mechanical energy is like a generator or an engine; there is always something working to get things done/made. I hope this answer and these explanations helped!

A rock at the edge of a 200-m high cliff has more potential energy than an equal sized rock at the edge of a 600-m high cliff. True or False

Answers

Answer: The given statement is False.

Explanation:

Potential energy is defined as the energy possessed due to the height of the object.

Mathematically,

$E_p=mgh$

where,

$E_p$ = potential energy of the rock

m = mass of the rock

g = acceleration due to gravity = $9.8m/s^2$

h = height of the cliff from where the rock is thrown

When height of the cliff is 200 m

Putting values in above equation, we get:

$E_p=m* 9.8* 200m\n\nE_p=1960m$

When height of the cliff is 600 m

Putting values in above equation, we get:

$E_p=m* 9.8* 600m\n\nE_p=5880m$

So, $E_p(60m)>E_p(200m)$

Potential energy of the rock at 600-m high cliff is more than the potential energy of the rock at 200-m high cliff

Hence, the given statement is False.

It is false. The higher an object is the more potential energy they have.

Convert 0.000238 m to cm

Answers

Answer:

0.0238 centimetre

Explanation:

multiply the length value by 100

Regan has an empty glass cup. it has a mass of 0.3 kg. she drops the cup on the ground and it shatters into several pieces. if she collected all of the pieces of the cup, how much mass would all of the pieces have combined?

Answers

0.3, because its the same thing, just in pieces.

How is energy lost from the photosphere of a protostar replaced?

Answers

Energy radiated from the surface of a protostar which is inreturn is replaced by energy released through gravitational contraction.

This keeps a protostar in thermal equilibrium

hope it helps

Other Questions

According to the _____ model, the solar system formed from a cloud of dust and gas.

for uniform acceleration in rectilinear motion, which of the following is not correct? (a) velocity-time graph is linear (b) acceleration is the slope of velocity time graph (c) the area under the velocity-time graph equals displacement (d) velocity-time graph is nonlinear

Which phrase best describes wave motion

Mass is measured using _____.scalesa triple beam balancea mass meterall of the above