If you ride your bike at an average speed of 15 mph, how long will it take you to ride to your grandparents home? express your answer in hours ( to the nearest hundredth of an hour). convert to minutes (to the nearest minute).

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?