a car is traveling at speed of 38 meters per second on interstate highway where the speed limit is 75 miles per hour is a driver exceeding the speed limit? justify your answer​

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)

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

What energy transformations occur each time the skateboarder rolls up the ramp?