calculate your power in watts if you do 500 N*m of work picking up a dumbbell, and takes 5 s to perform that task?

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

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.