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A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal pulley and then to your hand. You pull on the loose end of the rope with a force of 348 N. You weigh 612 N and the seat you sit on weighs 16.0 N. (a) What is your acceleration? (b) What force does the seat exert on you?
A 4 kg block rest against one end of a horizontal spring which is compressed by 20 cm. Calculate the constant of kinetic friction Mk between the block and the table
A 0.180-kg yo-yo consists of two solid disks of radius 12.00cm joined together by a massless rod of radius 1.00 cm, Find the acceleration of the yo-yo
Charge is scattered uniformly throughout a long cylindrical shell of inner radius R and out radius 2R. At what radius is the electric field equal to one-half the value on the outer surface.
a particle of mass 110-5 kg has a negative charge of -10 c. it moves in a clockwise circular pattern of radius 2m at a
the lowest tone to resonate in an open pipe of length l is 200 hz. which one of the following frequencies will not
A carnival clown rides a motorcycle down a ramp and around a vertical loop. If the loop has a radius of 18m, what is the slowest speed the rider can have at the top a the loop to avoid falling?
a piece of balsa wood with density 0.12gcm3 with mass of 30g in air is affixed to alead sinker with a mass of 400g.
How many photons are emitted during 7.0 s of operation of a red laser pointer? The device outputs 2.5 Watts at a 635 nm wavelength
Two narrow slits 62um apart are illuminated with light of wavelength 480nm . What is an angle of the bright fringe in degrees.
Cosider a series RLC circuit. Thw applied voltage has a maximum value of 160V ans ocscillates at a frq. of 74 Hz. Determine the value of the capacitor
a proton traveling at 3.60 kms suddenly enters a uniform magnetic field of 0.750. t traveling at an angle of 55.0
A bullet is shot into a block of ice at 0 degrees Celsius. It comes to rest and melts .005 kg of ice. What was the Kinetic Energy of the bullet
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