Find velocity of system after boulder has come to rest
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Air enters a well-insulated nozzle with a pressure of 1000 kPa, a temperature of 527°C. Determine the exit temperature T2s (K) for the isentropic process.
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Calculate the velocity v of the system after the boulder has come to rest relative to the car. Would the velocity be the same if the cars were coupled before the boulder dropped?
Kinetic and potential engergy effects can be ignored. Determine the rate at which entropy is produced, in kJ/K per kmol of mixing exiting.
A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the mass located when its kinetic energy is a minimum?
The intensity at a distance of 6 m from a source that is radiating equally in all directions is 6.0 X 10-10 W/m2. What is the power emitted by the source?
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