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Two 455,000-lb locomotives pull 58 230,000-lb coal hoppers cars. The train starts from rest and accelerates uniformly to a speed of 32 mi/hr over a distance of 7000 ft on a level track. The constant rolling resistance of each car is 0.005 times its weight. Neglect all other retarding forces and assume that each locomotive contributes equally to the tractive force. Determine (a) the tractive force exerted by each locomotive at 16 mi/hr, (b) the power required from each locomotive at 16 mi/hr, (c) the power required from each locomotive as the train speed approaches 32 mi/hr, and (d) the power required from each locomotive if the train cruises at a steady 32 mi/hr.
Two simple pendulums are related as follows. Pendulum A has a length LA and a bob of mass mA; pendulum B has a length LB and a bob of mass If the period of A is twice that of B, What is the relationship between LA and LB?
Calculate the net cycle work in kJ assuming air is an ideal gas with constant specific heats.
Determine (a) the velocity of the air at the duct inlet and (b) the temperature of the air at the exit.
Hollow shaft transmitting power with shear limits. Design a hollow steel shaft to transmit 300 hp at 75 rpm without exceeding a shear tress of 8000 psi. Use 1.2:1 as the ratio of the outside diameter to the inside diameter.
a rocket is fired from rest at x0 and travels along a parabolic trajectory described by y2120103xm. if the x component
in an experimental study designed to simulate the manner in which a cat drinks a glass plunger simulating a cats tongue
The mass of one wheel is 125 kg and its radius of gyration is 0.75 m. The radius of a wheel is 1 m.
(a) determine the first three natural frequencies of the tube (b) Draw the standing wave pattern for both pressure and velocity (c) repeat parts a and b if the right one end is attached to an orifice (Hint: consider the impedance of the orifice to..
Demonstrate suitable accuracy by using a simple hand calculation for the static analysis of the structure. Describe in detail the hand calculations performed to validate the final solution. What is the approximate error between the simplified hand..
heat is generated uniformly inside a 20-mm thick plane wall at a rate of 20000 wm3. the thermal conductivity of the
for a vertical cylinder with an electric heater 2500watt at the basean inletlower part of cylinder with cold water at
Given a simulator or actual device, identify if a control loop is in control or out of control and identify the information used to make the decision
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