Which of the following is a result of the transfer of energy? - gravity
- matter
- magnetism
- sound

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

What does si stand for,when referring to a system of measurement