A 2-kg book falls off a shelf. it hits a student traveling 2 m/s. how much kinetic energy does the book have?

A net force acting on a object causes a object to accelerate the direction of force is

4. A metal fork has a density of 7.8 g/cm ³. Is this fork made up of aluminum? 5. A glass marble has a volume of 5cm ³ and a mass of 13 g. What is the density of the marble

How are electromagnetic waves different than all other waves?

Compare and contrast microwaves with visible waves using wavelength, frequency, and energy.

A 1200-kg car comes to rest from a speed of 25 m/s in a distance of 75 m. If the brakes are the only thing making the car come to a stop, calculate the magnitude of the force that the brakes apply on the car.

Charlotte, a 60.0-kg skin diver, shoots a 2.0-kg spear with a speed of 15 m/s at a fish who darts quickly away without getting hit.

All objects are attracted to each other by the force of a. weight. b. mass. c. inertia. d. gravity.

landslides and mudslides caused by lava flows are ___ deadly than the lava flow itself. a. more b. less

3. How is electric potential different than electric potential energy?

Ethan pushes a wooden box across a carpet floor then he pushes the same box across a smooth marble floor why does Ethan find it easier to push the box on the marble floor than carpet floor