Does heat always give of heat

The crate has a mass of 10 kg and is being pulled by the force as shown on a smooth surface. if initially the crate has a velocity of 15 m/s to the left, what is its velocity after 2 seconds?

A water tank is filled with water. What will be the pressure of the water when the level of the water is 6m?

If a baseball is thrown horizontally, what kind of vertical velocity does it have? A. none B. a constant velocity C. one that increases over time

A data table shows the height of a person on his birthday each year for ten years. What is the dependent variable?

What materials are poor thermal insulators?

A solar eclipse occurs when positions of the sun, moon, and earth are such that one of these objects is between the other two. during a solar eclipse, which object is between the other two? a. sun c. earth b. moon d. none of the above

One tuning fork vibrates at 440 Hz, while a second tuning fork vibrates at an unknown frequency. When both tuning forks are sounded simultaneously, you hear a tone that rises and falls three times per second.

A block sliding along a horizontal frictionless surface with speed v collides with a spring and compresses it by 2.0 cm. What will be the compression if the same block collides with the spring at a speed of 2v?

How does work get affected when a object is lifted up instead of using a ramp

Choose the correct statement. a. Usually, when one form of energy is converted to another, no energy is wasted. b. The total amount of energy in the universe is gradually decreasing. c. This statement illustrates the first law of thermodynamics. d.