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Figure P15.29 shows an electric motor driving a machine by means of three straight tooth spur gears having 16, 32, and 24 teeth. The gears have P = 8 and φ = 20°. The idler shaft is supported by bearings A and B.
(a) For the direction of motor rotation shown, determine the radial load carried by each bearing.
(b) Determine the bearing loads for the opposite direction of motor rotation.
(c) Explain briefly why the answers to parts a and b are different.
A well-insulated rigid closed tank contains a kg of saturated liquid-vapor water mixture at 1atm and quality 0.6842. The water is rapidly stirred by a 200Watt paddle source until it becomes saturated vapor.
Each of the two arms has weight w per unit length and supports weight W = 10wL at its end. Derive formulas for the maximum shear force and maximum bending moment in the arms, assuming b = L/9 and c = L/10.
using excel find the value of the 97.5 confidence interval for a single-sample using the z variable and the students
Calculate the heat loss and the interfacial temperature using a three-element model using the data given in Table 2.2.
Describe in detail - using hand drawn imagery and text, describe the information required to be detailed in a site plan. analysis describe the process to assess a buildings exposure to wind loads and what forms of bracing are used to counteract thes..
Inadvertently, the pod is hauled out of the water and suspended in ambient air without deactivating the power. Estimate the surface temperature of the pod if the air temperature is 15°C and the wind speed is 3 m/s.
nitrogen gas at 60 kpa and 7 degc enters an adiabatic diffuser steadily with a velocity of 200 ms and leaves at 85 kpa
a team of design students working on a mousetrap-powered vehicle decides to use computercompact discs as wheels. the
An adiabatic gas turbine expands air at 1,000kPa and 500C to 100kPa and 150C. Air enters the turbine through 0.200m^2 opening with an average velocity of 40 m/s and exhausts through a 0.910m^2 opening.
a certain object weighs 300 n at the earths surface. determine the mass of the object in kilograms and its weight in
In 1 week, a work center produces 85 standard hours of work. The hours scheduled are 80, and 75 hours are actually worked. Calculate the utilization and efficiency of the work center.
Derive an expression for the surface tension in the air bubble and from it, deduce the result for the given condition.
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