Suppose the earth suddenly came to halt and ceased revolving around the sun. the gravitational force would then pull it directly to the sun. what would be the earth's speed as it crashed?

What is work? how much work is done to move an object 0 meters?

What are chlorofluorocarbons and what impact do they have on the atmosphere?

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?