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Extensive testing of an experimental 2820-lb automobile reveals the aerodynamic drag force FD and the total no aerodynamic rolling-resistance force FR to be as shown in the plot. Determine (a) the power required for steady speeds of 22 and 44 mi/hr on a level road, (b) the power required for a steady speed of 44 mi/hr both up and down a 5-percent incline, and (c) the steady speed at which no power is required going down the 5-percent incline.
propane undergoes a process from state 1 where p11.4 mpa t160 c to state 2 where p21.0 mpa during which the change in
A steel circular bar (\sigmayp =250 MPa) of d=60-mm diameter is acted upon by combined moments M and axial compressive loads P at its ends. Taking M=1.5KN.m, determine, based on the maximum energy of distortion theory of failure, the largest allowabl..
a motor delivers 240 w through the drive shaft to a paddle wheel that agitates liquid water in a close insulated tank
air is compressed in an isentropic process from an initial pressure and temperature of p1 90 kpa and t1 22 oc to a
two barges each with a displacement mass of 550 mg are loosely moored in calm water. a stunt driver starts his 1510-kg
(a) Draw a schematic of the system and (b) determine if the inventor's claims are true.
the governing equation for a simple mass-spring system exemplified in class ism? kx 0if m 2.0 kg determine the
the amount of a uniformaly distributed radioactive contaminant contained in a closed reactor is measured by its
The ball A is moving with constant velocity of 2 m/s and hits ball B. The ball B and C are at rest and they are connected with an unreformed spring with k= 100 N/m. All three balls are identical with 200 kg mass. Assume the impact between A and B is ..
Evaluate the maximum theoretical power that can be developed by the turbine, in kW, and the corresponding exit temperature.
consider a steam power cycle in which saturated water vapor at 25 bar state 1 enters an adiabatic steam turbine. at
a closed-end cylindrical pressure vessel constructed of carbon steel has a wall thickness of 2 mm a diameter of 150 mm
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