What is the intensity at a spot that is at specific distance
Suppose that sound is emitted uniformly in all directions by a public address system. The intensity at a location 26 m away from the sound source is 3.40 10-4 W/m2. What is the intensity at a spot that is 84 m away?
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The sound intensity during a normal conversation is about 3.20 10-6 W/m2 at the listener's ear. Assume the sound strikes the surface of the ear perpendicularly. How much power is intercepted by the ear?
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The intensity at a location 26 m away from the sound source is 3.40 10-4 W/m2. What is the intensity at a spot that is 84 m away?
A light truck with manual transmission has a circular brake drum with a diameter of d = 320 millimeters. Each brake pad, which presses against the drum, is s = 307 millimeters long. What central angle is subtended by one of the brake pads? Write y
Paulsen is considering the acquistion of a $217,750 machine that is expected to produce annual savings in cash operating costs of $50,000 over the next 6 years.
Resolve a force of 60lb into two components, one of which is 38lb and makes an angle of 45 degrees with the given force. Construct a triangle and use the law of sine and cosines.
It operates while immersed in a damping fluid, selected so that the oscillation amplitude will decrease to 1.00% of its initial value in 7.13s. Find the required damping constant for the system.
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