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A body weighing 100 lb rests on an inclined plane, as shown. The coefficient of static friction between the body and the plane is 0.40. Compute the force P that will cause impending motion
a. up the inclined plane.
b. down the inclined plane.
Suppose noise levels of a tape recorder are stated as -55 dB, while another figure is given as -60 dB "A-weighted." Explain the two statements. Why would one specification be preferred over the other?
When the support undergoes the vertical movement y(t) = Y sin 18t (t is the time in seconds), the relative amplitude of the steady-state vibration of the mass m is Z = 10 mm. Determine the amplitude Y of the support displacement.
The concrete walls and roof of a garage are 15-cm thick. The inside dimensions of the garage are 8-m long, 6-m wide, and 2.5-m high. The door is made of 12-mm thick hardwood and is 6-m wide and 2.5-m high. The garage is modeled in the figure below. O..
car a is speeding in the positive x direction and is about to run through a red light and collide with car b heading
What is the mass of oxygen gas in a container with a volume of 25 ft3, at a pressure of 14.7 psia and a temperature of 75oF?
Assuming that collapse occurs by Euler buckling of the strut, determine the angle θ for minimum weight of the strut.
Use the function for thermodata evaluation in the matlab toolbox to compute species thermodata and kp of the reaction 2CO2= 2CO + O2 for T=3000K. Solve the equilibrium concentration manually by solving the progress variable first (Show the procedure)..
water enters an insulated nozzle operating under steady conditions at a pressure of 60 psia a temperature of 350 degf
If the outlet temperature of the oil is 60°C, determine the total heat transfer and the outlet temperature of the water. Determine the length required for the heat exchanger.
a 250ft square shell and tube heat exchanger was purchased for 13500 in 1994 when the index value was 830. estimate the
air at 5 bar and 177oc state 1 is expanded through a turbine to 1 bar and 27oc state2. the mass flow rate of air
1.7 pound-mass of water fills a container whose volume is 3.7ftsup3. the pressure in the container is 70 psia. how do
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