Which has greater kinetic energy: a tennis ball that has a mass of 0.3kg travelling at 80m/s or a train that has a mass of 10000kg and is moving at 0.1m/s? tennis balltrain

Different color ca ferent color candy canes are tested to see one type dissolves faster. What is the independent variable?

Does gas have charged particles?

What causes interstellar dust and gas to start to contract and form a protostar? 1) the shockwave from a supernova 2) nearby black hole 3) an increase in the solar wind 4) nuclear fusion

Which of the following factors affect the pressure of an enclosed gas? a. temperature b. volume c. number of particles d. all of the above

Thermal energy is a form of ... A. neither potential nor kinetic energy. B. both potential and kinetic energy. C. potential energy only. D. kinetic energy only.

Critical thinking! Applying Concepts A desk exerts an upward force to support a computer resting on it. Does this force do work? Explain.

When an inclined plane is used, A. the mechanical advantage increases as the height increases. B. a smaller force is exerted over a longer distance. C. a negative mechanical advantage can result. D. a greater force is exerted over a shorter distance

A 4-kg cat is resting on a bookshelf that is 3m high. What is the cats gravitational potential energy relative to the floor if the acceleration due to gravity is 9.8m/s squared

If a 100 N net force act on a 50-kg car, what will the acceleration be

According to the modern classification system, which list is written correctly from least specific to most specific?