Power can be defined as

A. the distance over which work was done.

B. how much work can be done in a given time.

C. all the work in an given area.

D. the energy required to do work.

A motorbike and its rider have a mass of 275 kg. If they experience an acceleration of 4.50 m/s?, what force was exerted on them?

If a 1000-pound capsule weighs only 165 pounds on the moon, how much work is done in propelling this capsule out of the moon's gravitational field? (Note: The radius of the moon is roughly 1080 miles)

Jack and Jill have a pail of water. Which action will cause the molecules of water to move faster?

Why is friction between moving parts of machines undesirable?

An astronaut weighs 700 N on Earth what is the astronaut's Mass on Earth?

What do you think swarming locusts affect planted crops?

What happens when a hydrogen atom acts like a nonmetal in a chemical reaction?

Which set of numbers best describes the displayed weights on a digital scale that shows each weight to the nearest half pound?

What is the equivalent volume occupied by three milliliters of water? three kilograms three cubic centimeters three centigrams three centimeters

Which list gives the proper sequence of energy changes that occur in a hydroelectric plant? The mechanical energy of the turbine rotates the generator parts The turbine blades capture the kinetic energy of the water Electrical energy is transferred