Different lightbulbs from a box
If you test 2 different lightbulbs from a box of 100 bulbs that contains 1 defective bulb what is the probabilty that both light bulbs that you test are defective?
(A) 0
(B) 0.0001
(c) 1/9,900
(d) 0.01
(e) 1/99
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Three seconds after a polisher is started from rest, small tufts of fleece from along the circumference of the 225-mm-diameter polishing pad are observed to fly free of the pad.
The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter in between 0.279 and 0.326 inches?
An angled jet of water comes from the ground at 5 m / s at a 35 degree angle from the horizontal. how high does the water reach? How fast is going when it reaches back to ground.
A company can sell 100x machine parts if it charges 10-0.1x dollar for each machine part. How many machine parts can be the company sell if it charges $ 4.00 for each machine part?
What is the force with which the air outside the house pushes the roof downward? (again, calculate this value to 5 significant digits)
If methane burns in oxygen at an equivalence ratio φ=1.5, and the combustion reations go to equilibrium, what will be the resulting gas composition? Assume the combustion temperature is controlled to 1500K.
Determine (a) the final pressure, (b) the change in the volume of the cylinder, and (c) the change in the enthalpy of the refrigerant-134a.
A car is travelling over a hill. If using a Cartesian Coordinate system with origin ) at the top of the hill, the hill;s profile is described by the function y = -(0.003m^-1)x^2.
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