Draw the free body diagrams for the following objects: a.) A ball in free fall.
b.) A block moves at a constant velocity on a horizontal surface.
C.) A block is at rest on an inclined surface at an angle (friction is not negligible).

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

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 = 2.6 m below the tank bottom which is a = 6.7 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). report your answer in meters to two decimal places.

How does radioactive dating allow scientist to accurately date rocks