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The 2000 lb load can be moved along the beam BD to any position between stops at E and F. Knowing that σall=6ksi for the steel used in rods AB and CD, determine where the stops should be placed if the if the permitted motion of the load is to be as large as possible.
If the room temperature is 15C and the temperature of the air exiting the hair dryer is 50C, what is the percent increase in the air velocity as it passes through the dryer.
a hollow cylinder is made by welding two thin disks on either side of a thin ring. it is mounted on a axel and a 2 kg
a closed system of mass 6lbm undergoes a process in which there is a heat transfer of 245 ft-lbf from the system to
a gas is contained ina vertical, frictionless piston cylinder device.the piston has a mass of 4kg and a crossectional area of 35cm^2. a compressed spring is above the piston exerts a force of 60N on the piston .if the atmospheric pressure is 95kpa..
Determines if the member forces are in tension or compression (note that a negative number denotes compression and a position number denotes tension)
405-N rightward force is use to drag a large box across the floor with a constant velocity of 0.678 ms-1. The coefficient of friction between the box and the floor is 0.795. Determine the mass of the box.
a 50.0 g object moves on the end of a spring with spring constant k 25.0 nm. it is released with an initial
air an ideal gas is isentropically compressed from v1 0.36 ft3 p1 14.5 psia t1 70degf to v2 0.03 ft3compression
assume you are given a spherical joint where the ball has a radius of 20 mm and socket has a radius of 22 mm. if the
A turbine salesman makes the following claim for one of his products: Steam enters a steady-flow adiabatic turbine at 4 MPa, 600 °C with negligible velocity and exhausts at 200 kPa with a velocity of 180 m/s
Steam at 1000kPa and 300deg C expands to a pressure of 150kPa in a cylinder. If PV = constant during the process, calculate W, Q and delta S for the process.
Saturated water vapor at 200oC is isothermally condensed to a saturated liquid in a piston-cylinder device. Calculate the heat transfer and the work done during this process in kJ/kg.
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