The molecules of a substance become more closely packed and move more quickly.

What is happening to the substance?

The animal derives energy from its food to maintain its body temperature.

State the energy change that takes place

If you owned a seaside home and a bad storm brought heavy winds and high surf to your coastline, would you prefer it be during a new moon or a quarter moon?

A 1210 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater when the unit is operating? (b) What is the resistance of the heating coil? (c) How much thermal energy is produced in 4.07 h?

Astronomers want to study a star in the Andromeda galaxy, the closest galaxy to our own. Which instrument has the advanced technology needed to study such a far-off object? Check all that apply. rover probe satellite space station space observatory

A spring can be compressed to a limit of - 0.50 m and can be stretched a maximum of 0.75-m within the limit of a spring constant k = 25.0 N/m. What is the range of force that can be applied to this spring.

If the molecules in a substance start to move quickly, what happens to their kinetic energy?

At what temperature did the substance in the test tube into a solid?

What occurs when the velocity of Earth is doubled? a. The orbit of Earth around the Sun becomes smaller b. The orbit of Earth does not change c. The Earth escapes the Sun d. The orbit becomes more elliptical

When is a body said to be at rest

27. Calculate the impulse when an average force of 10 N acts on a cart for 5.0 s.

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him