A 2.80 kg mass is dropped from a height of 4.50 m. Find its kinetic energy (KE) when it reaches the ground.

Unit = J

Why are magnetic fields evidence of sea floor spreading

1. What general principle can you conclude about work, potential energy, and kinetic energy from these experiments? Be sure to discuss the transformation of potential energy (U) to kinetic energy (K) in your answer.

There are slightly more than one-hundred elements known to exist. The smallest complete unit of an element that serves as the basic building block of matter is the A. atom. B. proton. C. neutron. D. nucleus.

If a scientist is comparing two different earthquake waves and notices that the amplitude is the same for both, but earthquake 1 has a higher frequency than earthquake 2, what conclusion can he make about the overall energy of the earthquake waves?

In the inclined plane the objects that are thrown from a more inclined place go faster?

A shark travels with an average velocity of 12 m/s s. How long (time) would it take the shark to swim 42 m at that velocity

When a high-mass main sequence star runs out of both hydrogen and helium in its core, the core begins to fuse

Is there a definite end to our atmosphere?

Based on the second law of thermodynamics, how would you expect a system to change over time? A. It would become more organized B. Its randomness would increase C. It would become more efficient D. Its energy would increase

Susan works 8 hours a day and makes $7.00 per hour. How much money does Susan earn in one week if she works 5 days per week?