A football initially sitting on a number line at xi = +10 m is picked up and moved to a new position of x1 = +30 m. The football is then moved again to a final position of xf = -5 m. Once the football reaches its final position, what is its displacement from the original position?

Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?