Find the time for its maximum height
A ball is thrown upwards with an initial velocity of 10 m/s. Find the time for its maximum height and also find its maximum height.
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In a hydroelectric power plant, water enters the turbine nozzles at 880 kPa absolute with a negligible velocity. Determine the maximum velocity to which water can be accelerated by the nozzles before striking the turbine blades.
A curling stone, with a mass of 20.0 kg, slides across the ice at 1.50 m/s. It collides head on with a stationary 0.160-kg hockey puck. After the collision, the puck's speed is 2.50 m/s. What is the stone's final velocity?
Determine the rate of heat loss from the turbine to 3 significant figures in kW. Assume the inlet/outlet kinetic and potential energy changes are negligible.
The structure of a house is such that it loses heat at a rate of 5400 kJ/h per degree Celcius difference between the indoors and outdoors. A heat pump that requires a power input of 6 kW is used to maintain this house at 21 degrees Celsius.
Determine the power input to the compressor for a mass flow rate of 0.15 kg/s. If only a single stage were used what would the power requirement be?
A gage pressure of 400 kPa acting on a 4-cm diameter piston is resisted by an 800-N/m spring. How much is the spring compressed? Neglect the weight of the spring.
A 2500-kg truck moving at 10 m/s strikes a car waiting at a traffic light, hooking bumpers. The two continue to move together at 7 m/s. What was the mass of the truck car? Show Work!
A 75 kg swimmer dives horizontally off a 500 kg raft. If the diver's speed immediately after leaving the raft is 4 m/s, what is the corresponding raft speed? Show Work!
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