. Example 2.8
PI: A hydraulic lift with piston of diameters D,- 5 cm and D,= 15 cm is shown in Figure :
: 2.10. If the weight of the block W = 1800 N, find the minimum force F to lift up the:
weight W

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?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?