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A cooling fan is turned off when it is running at 850rev/min. It turns 1500 revolutions before it comes to astop. What is the fan's angular acceleration, assume d constant?
A compund microscope has an objectibe lens with a 2.2 cm focal length and an eyepiece with a 5.4 cm focal length. what magnification does the microscope produce
250.0 gram industrial mold absorbs 5,575 calories of heat when it is filled with an alloy. If the specific heat of the mold is 0.275 calories per gram degree Celsius, explain by how much does its temperature rise?
What is the total force on the bottom of a swimming pool 29.5m by 9.1m whose uniform depth is 1.6m, What is the absolute pressure on the bottom of a swimming pool
A -50 micro C charge is located at (+26 cm, 0) on the + x axis and a +50 micro C charge is located at (-26cm, 0) on the -x axis. Calculate the net electric field and the total electric potential
The nucleus of an atom is on the order of 10-15 m in diameter. For an electron to be confined to a nucleus, What would be the kinetic energy of an electron confined to this region
A 2.40 bucket containing 11.5 of water is hanging from a vertical ideal spring of force constant 115 and oscillating up, What is the shortest period this system can have
a ski starts from rest and slides down a 25deg incline 70 m long. use energy methods.a if the coefficient of friction
Speakers A and B are vibrating in phase. They are directly facing each other, are 8.0 m apart, and are each playing a 76.0-Hz tone. The speed of sound is 343 m/s. On the line between the speakers there are three points where constructive interfere..
A very powerful vacuum cleanerhas a hose 2.63 cm in diameter. Withno nozzle on the hose, what is the weight of the heaviest brick that the cleaner can lift
Two loudspeakers placed 6.00 m apart are driven in phase by an audio oscillator having a frequency range from 1908 Hz to 2471 Hz, At what frequency of the oscillator does the sound reaching point P interfere constructively
A 75.0 kg bungee jumper, tied to a 39.0 m longcord, leaps off a bridge whose deck is 69.0 m above thewater. He falls to 7.0 m above the water before the bungeecord pulls him back up. What is the magnitude of the impulseexerted on the bungee jumper..
Discuss the postulates and implications of Albert Einstein's Special Theory of Relativity on the way that scientific data is collected and analyzed
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