Aboy in a moving bus at +6 m/s observes a car moving at -3 m/s. what is the actual velocity of the car with respect to the bus?
- 9 m/s
3 m/s
9 m/s
- 3 m/s

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

12. a body is a particular amount of matter. it can be a solid, liquid or gas. it can be described as existing in a. size and shape. b. motion and force c. time and space. d. location and movement.