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A 1-ton weight rests on a horizontal floor. The coefficient of static friction between the weight and the floor is 0.35. Calculate the force required to cause motion to impend if the force applied to the weight is
a. horizontal
b. downward at an angle of 15° with the horizontal
an iron blok m1kg initialy held stationary is dropped form a 100 m height. it strikes the groud and is assumed to be
Prepare a preliminary design for a solar PV system to provide 1 kW of stand-alone 24 h/day power to a travel trailer. Make a schematic diagram of the overall system, a cost estimate, a cell array design, and a battery storage. Then discuss the ass..
Design a solid, straight centrally loaded column to carry 100,000 lbs. Assume one end is pinned and the other is fixed.
A gas turbine (can assume an ideal Brayton cycle) has a pressure ratio of 10. It is connected to an electric generator with an efficiency of 95% which produces 200MW of electricity. The gas turbine burns natural gas with a heating value of 100,000 bt..
a a rod of steel 0.5 m long is heated from 20 c to 80 c while its ends are maintained rigid. determine the type and
A rocket has an empty weight of 500 lb and carries 300 lb of fuel. If the fuel is burned at the rate of 1.5 lb>s and ejected with a velocity of 4400 ft>s relative to the rocket, determine the maximum speed attained by the rocket starting from rest..
This heat loss determines the capacity of the lake to cool the condenser. Justify why the heat transfer correlation you select is useful, even though RaL is outside of its specified range.
a hydraulic press has four cylinders which are six inches in diameter. if oil is supplied at 400 gpm and at up to 5000
A two-dimensional reducing bend as shown is used to control flow rate and direction of flow in a home air conditioning duct. In the reducing bend shown, there is a linear velocity profile at section (1). The flow is uniform at sections (2) and (3). T..
flow and pressure measurements are used to estimate the friction factor for a pipeline. the length of the pipeline
a voltmeter with a range of 0 to 100v reads 2v when the leads are shorted together. the manufacture claims an accuracy
When the equilibrium of the 5 kg uniform disk is disturbed, it rolls back and forth on the rigid base without slipping. If the maximum displacement of the center of the disk from its equilibrium position is 25 mm
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