Jacob is working on his physics portfolio and stands on a 0.45 m high step. if jacob’s mass is 103 kg, what is his potential energy while on top of the step? givens unkowns equation substitute solve if you could fill this in i will medal and give you brainliest answer, really struggling with this and could use a hand if you don't mind : )

The force will determine the acceleration.

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

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.