1. i drop a penny from the top of the tower at the front of fort collins high school and it takes 1.85 seconds to hit the ground. calculate the velocity in m/s after 1.10 seconds of freefall and calculate the velocity at impact in mi/hr.

Why is metal often used for cooking pan?

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.