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A gear speed reducer with a 10 to 1 speed reduction ratio has an output torque of 50 lb · in. at an output speed of 100 rpm. The required input torque is 6 lb · in. and the input speed is 1000 rpm. Determine the efficiency of the speed reducer. Once the reducer reaches a steady state temperature, what happens to the energy lost by the reducer?
steam enters a turbine at 8 mpa 450oc at a rate of 15 kgs and a velocity of 100 ms it leaves as saturated vapor at 100
the train engine on the left a is at rest and the one on the right b is coasting to the left. if the engines are
an ideal diesel cycle with a compression ratio of 17 and a cut off ratio of 2 has a temperature of 105 fahrenheit and a
For the flow of a thin film of a liquid with a depth h and a free surface, two important dimensionless parameters are the Froude number, and the Weber number
a refrigeration system has a coefficient of performance of 5. the heat rejection is an isothermal process at 37c. what
the steady state temperature distribution in a one-dimensional wall of thermal con- ductivity 50 wmk and thickness 50
two flash distillation chambers are hooked together. both are at 1 atm pressure. the feed to the first drum is a binary
1 in engineering graphics what are the three primary or regular views?2 estimate the total number of hours throughout
You have a large pin made from aluminum with a diameter of 0.01 m. This pin is needed to hold something from the ceiling. You install the pin into a hole of diameter 0.01 m in a piece of tungsten; assume a "perfect press fit". It was very hot, 323K, ..
The absorber plate and the adjoining cover plate of a flat-plate solar collector are at 70 and 35°C, respec- tively, and are separated by an air space of 0.05 m. What is the rate of free convection heat transfer per unit to convection heat transfe..
Calculate the minimum power required to convert 1 mole/sec of oxygen gas at 298 K and 1 atm to saturated liquid oxygen at 1 atm and 90.13 K (the atmospheric pressure boiling temperature) in a process in which heat is rejected to the environment at 29..
Determine the analytical solution for the maximum stress of the beam shown; compare with stress results from SolidWorks.
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