N In this lab, you will use a dynamics track to generate
: %
collisions between two carts. If momentum is conserved,
what variable change would result in a velocity change
after a collision? In the space below, write a scientific
question that you will answer by doing this experiment.
I

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

What is the rate of change in a objects position?