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A 500-N concrete block is to be lifted by the pair of tongs shown. Determine the smallest allowable value of the coefficient of static friction between the block and the tongs at F and G.
A wind turbine has a rotor diameter of 60 m. The wind speed is 10 m/s. The power coefficient of the rotor is 0.48 and the efficiency of the drive train is 0.9. The air temperature is 15°C, the air pressure is 101 kPa and the density of the air is 1.2..
In order to determine the properties ofa dense gas at high pressures, 10 lbm of the gas was heated at 4000 psia from 700 to 740°F. The gas volumes were 0.287 and 0.328 ft^3 in the initial and final states, respectively, and the required energy transf..
For a discharge of Q ¼ 100 L=min and a loss across the pump of hL ¼ 7 m, what is the required input power of the pump if its ef?ciency is 78%?
Air exits a turbine at 250 kPa, 3000C at a flow rate of 1000 l/s. Determine the mass flow rate in m/s modeling the air as an ideal gas.
estimate the flaw size responsible for the failure of a turbine rotor made from high strength steel having a yield
one way to put a steel wheel on a steel axel for example on a railroad car is to heat the wheel until it slides on the
Air enters a nozzle steadily with a density of 2.5 kg/m3 and velocity of 40 m/s. It leaves the nozzle at a density of 0.81 kg/m3 and an exit velocity of 150 m/s. If the inlet area of the nozzle is 100 cm2, determine the exit area of the nozzle.
a dynamics student is called on to investigate a two-car collision. its known that car a struck car b. mass of car a is
A confined quantity of air undergoes two thermodynamic processes departing from an initial equilibrium state where the temperature is 20°C, the absolute pressure is 1bar, and the volume is 0.2m3.
Filling of gas bottles is a part of a product line where the bottles are moved by pneumatic cylinders- Draw the position-sequence diagram. What kind of switches would you use (signals from actuators). So what is a type of the switch.
Two points on a stress-strain curve for a material are σ = 278 MPa at ε = 0.08 and σ = 322 MPa at ε = 0.16. A. Find K and n in the power-law approximation and predict σ at ε = 0.20.
what is comb drive actuator simulation steps in ansys software?
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