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Suppose a manufacturing plant has an average sound intensity level of 97.0 dB created by 25 identical machines.
(a) Find the total intensity created by all the machines.
(b) Find the sound intensity created by one such machine.
(c) What's the sound decibel level if five such machines are running?
q1. on a cool morning while the temperature is 13.0 c you measure the pressure in your car tires to be 20.0. after
A car is doing a loop-the-loop trick, the loop has a radius of.4 m. What is the minimum initial speed the car must have in order to remain in contact with the circular track at all times
You are driving a long, thinking about a difficult physics problem, and you fail to notice the warning lights at the entrance to a drawbridge. how fast were you going when you struck the bridge
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What are the original charges on each sphere
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A 0.20 {rm kg} rock is thrown vertically upward from the top of a cliff that is 31.0 {rm m} high. While it hits the ground at the base of the cliff, the rock has the speed of 31 {rm m/s}. Assume that air resistance can be ignored; find the initial sp..
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An electron is accelerated through 2.85 103 V from rest and then enters a uniform 2.40-T magnetic field. What is the maximum magnitude of the magnetic force this particle can experience
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