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In the figure shown, block R has a mass of 90 kg and block Q has a mass of 45 kg. They are connected by a rope parallel to the inclined plane. The coefficient of static friction between R and the plane is 0.10, and between Q and the plane is 0.40. Calculate the value of the angle at which motion impends down the plane. Calculate the magnitude of the tension in the rope.
pushing a book against the wall.you are holding a book against a vertical wall by pushing upwards with your hand. the
Gasoline is unloaded from a tanker truck through a 4 inch diameter rough-surfaced hose. This is a "gravity dump" with no pump to enhance the flow rate. It is claimed that the 8800 gallon capacity truck can be unloaded in 28 minutes. Do you agree? Sup..
determine the steady state rate of heat transfer per unit area through a 4.0 cm thick homogeneous slab with its two
a rigid tank contains 20 lbm of air at 20 psia and 70degf. more air is added until the pressure and temperature rise to
Describe emmsion components operations and how to test their operation.
Compute the percentage ionic character of the interatomic bond for each of the following compounds: MgO, GaP, CsF, CdS, and FeO
Assuming that the occupants' body heat provides a continuous source of 320 W within the igloo, calculate the inside air temperature when the outside air temperature is Too = -40 C. Be sure to consider heat losses through the floor of the igloo.
If the IG supplies only 1.0 kW of the total load at a power factor of 0.85, at what power factor would the synchronous generator be running?
a pitot-static tube is used to measure the airspeed of an airplane. the pitot tube is connected to a pressure sensing
The data listed below are claimed for a power cycle operating between hot and cold reservoirs at 1500 K and 450 K, respectively. For each case, determine whether the cycle operates reversibly, operates irreversibly, or is impossible.
argon enters an insulated nozzle at 277 kpa 1300 k 10 ms and exits at 100 kpa 645 ms. for steady-state operation
liquid water is cooled at a constant pressure of 200 kpa in a piston-cylinder device from a temperature of 110 degc to
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