Evaluate the tension in the string
A 0.400 kg object is swung in a vertical circular path on a string 0.550 m long. If its speed is 3.60 m/s at the top of the circle, what is the tension in the string there?
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What is the force exerted by the seat on the child at the lowest point? (Neglect the mass of the seat.)
Determine the following. Assume that the tunnel operates adiabatically. The total mass of the gas, in kg, present in the system. b) The final temperature, in K.
Determine the rate at which energy is removed by heat transfer from the refrigerated space, in kW, and the refrigerators coefficient of performance.
A vertical piston cylinder assembly with a piston of mass 25 kg and having a face area of 0.005 m^2 contains air. The mass of air is 2.5 g, and initially the air occupies of a volume of 2.5 liters.
A propeller drive shaft is to transmit 2500 hp at 75 rpm. It is to be made of AISI 1040 WQT 1300 steel. Use a design factor of 6 based on the yield strength in shear. The shaft is to be hollow, with the inside diameter equal to 0.80 times the outs
A round copper rod sticks through the insulated wall of a tank of hot water and into the air inside the room. The diameter of the rod is 12mm and the copper rod extends 100 mm off either side of the tank wall.
Beta Industries has net income of $1,700,000, and it has 1,830,000 shares of common stock outstanding. The company's stock currently trades at $61 a share.
Warm air is contained in a piston-cylinder assembly oriented horizontal as shown in figure P.142. The air cools slowly form an initially volume of 0.003 M^3 to a final volume of o.oo2 m^3.
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