Lifetime of a particular appliance
Suppose the lifetime of a particular appliance follows an exponential distribution with a mean of 10 years. What is the probability that the appliance will fail in less than 5 years?
0.3687
0.6065
0.6321
0.3935
0.7865
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A mass of 3 kilograms of steam at 2 MPa and 250°C are contained in a rigid tank. How much heat must be removed from this vessel to cool it to a saturated vapor.
Find the force required for the direct extrusion of commercially pure aluminum (1100-O) billet 8 in in diameter into a rod 2 inches in diameter.
A 5-µF capacitor is charged to 30 V and is then connected across a 10-µH inductor. The maximum value of the current in this circuit is:
An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range:
A skater is spinning with his arms outstretched. He has a 2-lb weight in each hand. In an attempt to change his angular velocity he lets go of both weights. Does he succeed in changing his angular velocity? If yes, how does his angular velocity ch
Determine the mole fractions of polyvinyl chloride and polyvinyl acetate in a copolymer having a molecular weight of 11,000 g/mol and a degree of polymerization of 150.
Catapult fires an 800-kg rock with an initial velocity of 100 m/sat a 40° angle from ground. What is the magnitude of the horizontal impulse the catapult receives from the rock?
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