Which of the following is a metal

a. sulfur
b. iron
c. oxygen
d. selenium

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.

The slope of a velocity time graph over any interval of time gives the during that interval

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank