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Tension in a rope
A uniform rope of mass m and length l is attached to a block of mass M. The rope is pulled with force F. Find the tension at distance x from the end of the rope. Neglect gravity
the acceleration of gravity g as a function of elevation z above sea level is given by g 32.17 - 3.32x10-6 z where g
should the firing occur to attain escape with a minimum value of ΔV?
A reservoir of water is drained by a 10-inch-diameter, square-edged orifice with center at elevation 289.12 that flows directly into a stream with water surface at elevation 293.59. The elevation of the reservoir surface is 296.85. Find the flow ..
a heat pump using r-134a as its working fluid is used to keep a space at 25degc by absorbing heat from geothermal water
tests reveal that a normal driver takes about 0.75 seconds before he or she can react to a situation to avoid a
A refrigerator uses R134a as the working fluid. It operates with a condensing temperature of 100°F (T3) and a low temperature of -10F. The compressor uses 500W of power. For an ideal cycle
A group of 20 students attend class in a room which measures 7m x 7m and has a 3 m ceiling height. Assume that each student occupies 0.07 m3 and gives out 400 kJ of heat per hour. Calculate the air temperature rise occurring within 15 min of the star..
A 17-tooth 20 normal pressure-angle helical pinion with a right-hand helix angle of 30 rotates at 1800 rev/min when transmitting 4 hp to a 52-tooth helical gear. The normal diametrical pitch is 10 teeth/in, the face width is 1.5 in, and the set has a..
initially an insulated rigid tank contains 3.73 kg of water at 240oc and 1 mpa. a heater in the wall of the tank
frictionless piston in a cylinder with 0.2 kg h2o under it. if piston raises to a given height the piston will hit
the inner surface of a hollow cylinder internally pressurized to 100mpa experiences tangential and axial stresses of
Vinegar (density of 1050 kg/m3, viscosity of 0.001 Pa·s) is drained from an open, large diameter storage tank through a 7.5 cm inner diameter (ID) pipe. Along the length of the pipe, the vinegar passes through a Venturi meter with a throat diameter o..
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