A 45 kg student runs up a flight of stairs that are 3.2 m high in 2 seconds. How much power did the student use during this time?

706 W

288 W

72 W

7.0 W

What is the instantaneous velocity v of the particle at t=10.0s?

Which motion maps show an object in uniform circular motion? Check all that apply.

Which of the following will not conduct an electrical current? pure water tap water aquarium water ocean water

A car has a mass of 8000 kg and a kinetic energy of 24,000 J. What is its speed?

Which of the following statements best contrasts thermal energy transfer through radiation, conduction, and convection

A dc generator is the same as a (n) a. electric motor. b. ac generator. c. armature. d. electric current.

Which of the following best describes scientific knowledge A.) Durable B.) Absolute and never changing C.) Frequently varies

Beth made the chart shown. A 2-column table with 1 row. The first column labeled X has entries Wall clock, T V remote control, Portable music player. The second column labeled Y has entries Refrigerator, Table lamp, Hair dryer.

Which sentence states Newton's third law? If two objects collide, each object exerts a force in the same direction as the other. If two objects collide, each object exerts a force equal to and in the opposite direction of the other.

Why did the chicken cross the road.