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A steel spur gear has a module of 1 mm and 16 teeth cut on the 20° full-depth system and is to carry 0.15 kW at 400 rev/min. Determine a suitable face width based on an allowable bending stress of 150 MPa. Use the first approximation equation for bending stress, not the AGMA equations.
in an overhead smash a tennis player strikes the ball with the center of the head of the racquet. say the contact
A 0.2-m3 rigid tank contains 8 kg of water (in any phase or phases) at 500 kPa. What is the temperature in the tank? Consider a sealed can that is filled with refrigerant-134a at 20°C. Now a leak develops, and the pressure in the can drops to the loc..
Using the required parameters for a typical large size car* and an appropriate frontal Quarter-Car model.
a car is traveling at a constant speed of 35 mph. what is the normal component of acceleration of the car at the top of
an adiabatic throttle valve operates in a steady-state steady-flow condition with r-134a refrigerant at a flow rate of
an insulated rigid tank initially contains 1.4-kg saturated liquid water and water vapor at 200degc. at this state 25
an air-hockey puck has a mass of 0.01 kg and a diameter of 90 mm. when it is placed on the air table an air film of
An insulated rigid container is separated into two parts using a partition that is free to move and the partition allows heat transfer without any energy storage by itself. Initially 2 kg of air at 5 bar and 350 K is contained on one side of the part..
crates a and b weigh 100 lb and 50 lb respectively. if they start from rest determine the their speed when t 5s. also
Estimate the minimum bar diameter to prevent fatigue failure.
water enters a turbine at 500oc and 6 mpa and leaves at 10 kpa what is the work output per unit mass if the turbine is
"A living plant leaf is an open system that exchanges energy (sunlight and thermal flows) and matter (O2, CO2, water vapor, etc.) with the surroundings (the exterior). Even with irreversible processes (energy dissipation) we4 find that the net entrop..
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