What is the speed of an object at rest

A train starts from rest and speed up to 20%m/s in a time of 10 seconds. determine the acceleration of the train?

It take a car 3hour to travel 300kilometers

Ava covers a flashlight with a piece of thick, black paper. Why doesn't she see the light when she turns on the flashlight? The paper reflects most of the light, The paper refracts most of the light. The paper absorbs most of the light.

How does the moons diameter compare with the distance between the earth and the moon?

What are the 3 most important characteristics of each celestial object?

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