What is the speed of a ball thrown that is dropped that falls for 0.5 seconds and how far does the ball fall? a. 9.8 m/s, 9.8 m
b. 4.9 m/s, 1.23 m
c. 0 m/s, 0 m
d. 9.8 m/s, 1.8 m

Describe the function of the endomembrane system? what organelles are involved?

Could someone . i have tried to solve myself but my calculation is off

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?