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Plastics Engineering Inc., a developer of advanced belt drive components, recently began manufacturing sprockets made of polyacetal plastics that are approved for direct food contact. The company claims that high-precision manufacturing allows for greater belt life, eliminating costs associated with replacing belts. If Kraft Foods estimates that maintenance down time costs the company an average of $12,000 per quarter, how much can the company afford to spend now if the new sprockets would cut their cost to $2000 per quarter? Assume Kraft Foods uses an interest rate of 12% per year com- pounded quarterly and a 2-year cost recovery period.
Water stands at depth D=35.0m behind the vertical upstream face of a dam of width W=314m. Discover the net horizontal force on the dam from the gauge pressure of the water and the net torque due to that force about a horizontal line during O parallel..
A wheel initially rotating at an angular speed of 2.4 rad/s turns through 30 revolutions during the time, How long did the acceleration last
The four tires of an automobile are inflated to a gauge pressure of2.3 105 Pa. Each tire has an area of0.022 m2 in contact with theground. Determine the weight of the automobile
A rotating wheel requires 5.0 s to complete 50 revolutions. Its angular speed at the end of the 5.0 s interval is 75 rad/s. What is the constant acceleration of the wheel
Two identical speakers are separated by 3.4m and produce sound of different frequencies equally in all direction. Determine the sound level in decibels at the point that is a midway between the speakers
A man is pulling his box that has a mass of 22 kg. What is the work done on the luggage by the lady, What is the power exerted on the box by the man
suppose you wanted to be able to see small details on the moon using an optical telescope. what is the smallest
When you lift a bowling ball with a force of 82 N the ball accelerates upward with an acceleration a. If you lift with a force of 89 N, the ball's acceleration is 7 multiplied by a.
A spherical Gaussian surface surrounds an electric dipole. The net enclosed charge is zero. Which is true? Could you also explain why the answer is the answer.
a concrete slab is 11.1 cm thick and has an area of 4.2 m2. electric heating coils are installed under the slab to melt
suppose a single electron orbits about a nucleus containing two protons 2e as would be the case for a helium atom from
Sam's circuit has a 24 Ω resistor that is connected in series to two 12 Ω resistors that are connected in parallel. find the value of JoAnna's resistors
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