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A 550 gram steel block rotates on a steel table (μk = 0.6) while attached to a 1.4 meter long hollow tube. Compressed air fed through the tube and ejected from a nozzle on the back of the block exerts a thrust force of 4.2 Newton perpendiculars to the tube. The maximum tension the tube can withstand without breaking is 50 Newton. If the block starts from rest, obtain how many revolutions does it make before tube breaks?
During a baseball game, a batter approaches the plate. The pitcher hurtles the ball in the direction of the batter at a speed of 85 miles per hour. find the momentum of the system in the center of mass frame
an aluminum bar 3.74m long has a rectangular cross section 1.09cm by 5.24cm . what is its resistance? what is the
An airplane of mass 1.50 x 10^4 kilogram is moving at 60.0 m/s. Calculate the speed of the plane after it as traveled 5.00 x 10^2 meter
a silver wire of diameter 2.0 mm carries a current of 159 ma. the density of conduction electrons in silver is 5.8 1028
A certain satellite travels in an approximately circular orbit of radius 2.4 × 106 m with a period of 5 h 31 min. Calculate the mass of its planet from this information
What is closing equilibrium temperature of the tin-water
In a charming 19th-century hotel, an old-style elevator is connected to a counterweight by a cable that passes over a rotating disk 3.50 m in diameter. The elevator is raised and lowered by turning the disk, and the cable does not slip on the rim ..
An air-hockey puck of mass m floats across the table essentially frictionless on a cushion of air. What is the final velocity of the heavier puck
A person sitting quietly in a room on a winter day may lose heat primarily by radiation from the outer surface of her clothes to the walls of the room. what is the temperature of the outer surface of the clothes
A bungee jumper (m = 66.00 kg) tied to a 48.00 m cord, leaps off a 78.00 m tall bridge. What size impulse is exerted on the bungee jumper while the cord stretches
A compound microscope has a barrel whose length is 15.0 cm and an eyepiece whose focal length is 1.5 cm. What focal length must the objective have
Two loudspeakers are placed on a wall 3.00 m apart. A listener stands 4.00 m from the wall directly in front of one of the speakers. A single oscillator is driving the speakers at a frequency of 700 Hz.
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