20 pc This diagram represents a multi-flash photograph of an object moving
along a horizontal surface. The positions as indicated in the diagram are
separated by equal time intervals. The first flash occurred just as the
object started to move and the last flash just as it came to rest.
Which of the following graphs best represents the object's acceleration as a function of time?
(B)
(D)

A
B

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.

The ability to make things happen is also called a. heat b. force c. matter d. energy