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With a mass of 1000 kg travels at 80km/h has a four-pad braking system. The µk between the brakes and the wheels is 0.4. If it takes the car 50m to stop, what is the force that must be applied into each break?
a first class lever in static equilibrium has a 50lb resistance force and 15lb effort force. the levers effort force is
Determine (a) the velocity of the air at the duct inlet and (b) the temperature of the air at the exit.
a. Find the temperature at the interface between the rod and sleeve and on the outer surface. b. What is the temperature at the center of the rod?
an insulated cylinder is initially filled with saturated r-134a vapor at a specified pressure. thenbsprefrigerant
Determine the phase or phases in a system consisting of H2O at the following conditions and sketch p-v and T-v diagrams shown the locations of each state?
plot the evolution of the height, h, of the stable boundary layer and the strength, delta thetas, as a function of time.
A car accelerates uniformly rest to 81 ft/s over a distance of 700 ft along a curve of 800ft radius .Determine the magnitude of the total acceleration at the instant that speed of 81ft is reached.
Knowing that in the position shown the rod has angular velocity of 4 rad/s clockwise; determine the angular velocity of the rod after it has rotated through a 90°.
A steel cylinder with an internal radius of 50mm is designed to carry a maximum stress of 400 MPs. It is subjected to an internal pressure of 80 MPs.(i) Determine the required wall thickness.
the system is at rest in the position shown with the 12-lb collar a resting on the spring k 20 lbft when a constant
Two slender rods of negligible weight are pin-connected at A and attached to the 18-lb block B and the 80-lb block C as shown. The coefficient of static friction is 0.55 between all surfaces of contact. Determine the range of values of P for which..
energy is added to a piston cylinder arrangement, and the piston is withdrawn in such a way that the quantity PV remains constant. the initial pressure and volume are 200kpa and 2m3, respectively. the final pressure is 100kpa, calculate the work d..
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