Engineering, 16.07.2021 19:00 hardwick744
The cars of a roller-coaster ride have a speed of 19.0 km/h as they pass over the top of the circular track. Neglect any friction and calculate their speed v when they reach the horizontal bottom position. At the top position, the radius of the circular path of their mass centers is 21 m, and all six cars have the same mass. What is v?
Answers: 2
Engineering, 06.07.2019 03:20
What is the strain energy stored in a solid uniformly circular shaft of length 3.0 m and diameter 120 mm when subject to pure torsion if the maximum shear stress is 40 mpa? g-80gpa
Answers: 1
Engineering, 06.07.2019 03:30
The load on a bolt consists of an axial pull of 10 kn together with a transverse shear force of 5 kn. the bolt material has a yield strength of syt syc 100 mpa. find the diameter of the bolt at factor of safety n-0.5, n 1 and n-2 using maximum shear stress theory
Answers: 3
Engineering, 06.07.2019 04:10
Aheat pump using refrigerant-134a heats a house by using underground water at 8°c as the heat source. the house is losing heat at a rate of 60,000 kj/h. the refrigerant enters the compressor at 280 kpa and 0°c, and it leaves at 1 mpa and 60°c. the refrigerant exits the condenser at 30°c. determine: (a) the power input to the heat pump, (b) the rate of heat absorption from the water, and (c) the increase in electric power input if an electric resistance heater is used instead of a heat pump
Answers: 2
Engineering, 06.07.2019 04:30
Calculate the resolved shear stress on the (111)[011] slip system of a unit cell in an fcc nickel single crystal if a stress of 13.7 mpa is applied in the [001] direction of a unit cell.
Answers: 1
The cars of a roller-coaster ride have a speed of 19.0 km/h as they pass over the top of the circula...
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