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A rear-wheel-drive car is stuck in the snow between other parked cars as shown. In an attempt to free the car, three students exert forces on the car at points A, B, and C while the driver's actions result in a forward thrust of 40 lb acting parallel to the plane of rotation of each rear wheel. Treating the problem as two-dimensional, determine the equivalent force-couple system at the car center of mass G and locate the position x of the point on the car centerline through which the resultant passes. Neglect all forces not shown.
a compressor is used to pressurize pure oxygen for respiratory assistance applications. the pure oxygen enters the
Write an M-file to solve an equation with the bisection method and with the secant method to a desired accuracy precision. Request upper and lower limits for bisection (you may assign a step size or request an input value)
a flywheel can be considered as being composed of this disk and a rim. the rim weighs 322lb and has a diameter of 24in
The following information is known about the steady flow of methane through a horizontal insulated duct: Determine the outlet velocity. What is the stagnation temperature at the outlet?
A 680 liter oxygen tank is filled to the pressure of 13.7 Mpa, and used to help a respiratory patient in a room with a temperature of 20 degrees C. During one treatment, 135 Liters of oxygen is supplied from the tank to the patient. The tank is then ..
a spaceship of mass 2.00times106kg is cruising at a speed of 5.60times106ms when the antimatter reactor fails blowing
calculate the amount of work input a refrigerator needs to make ice cubes out of a tray of 0.25 kg of liquid water at
a pontoon of constant rectangular cross section is 50 m long 10 m wide and 5 m in depth. it floats in sea water at a
a 4-m x 5-m x 6-m room is to be heated by a baseboard resistance heater. it is desired that the resistance heater be
a shell-and-tube heat exchanger is to heat an acidic liquid that flows in unfinned tubes of inside and outside
In the idealized model attached shown, m = 15 kg, k = 135 N/m, and the viscous damping ratio is 0.15. Assume that an external harmonic force F(t) = 15 cos 4 t acts on the system with F0=15 N and forcing frequency of 4 rad/s.
The pressure is positive on the windward side of the hut and is negative on the leeward side. Determine the total horizontal shear Q on the foundation per unit length of roof mea- sured normal to the paper.
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