Which are examples of a Simple machine? Question 4 options:

Hammer that swings on a nail

Light Switch that flips

Door stop that wedges at the bottom

The wheels on a bike

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.

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

Arrange the images in order to show how lake-effect snow occurs.