A 20 kilogram ball rolls down a 10 meter ramp at the rate of 15 meters per second.

A hair dryer blows warm air to wet hair what energy is it using

What element is used for lightbulb

Which of the following statements about rest and physical activity is NOT true? a. You should rest as little as possible because it interferes with training. b. You should allow muscle groups a chance to rest between workouts. c.

Compare the loudness of sound waves that are in phase when they interfere with the loudness of sound waves that are out of phase when they interfere

Why is alternating current more effective at long-distance travel than direct current? A. The power lines are made out of conductors. B. Transformers increase or decrease voltage as needed. C. The AC generator is more efficient. D.

What is the energy of an object because of its potential and kinetic energies? A.) chemical energy B.) electrical energy C.) nuclear energy D.) mechanical energy

If the volume of a hot air balloon remains constant, what happens as the temperature of the air inside the balloon increases?

What is the correct formula for electrical power? l

Bernie drove home from a vacation in 1.5 hours. He traveled a total distance of 60 miles. What was his average speed in miles per hour

What advice a personal trainer most likely give u before a workout