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A 99.3 kilogram horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.71 rad/s. A monkey drops an 8.89 kilogram bunch of bananas vertically onto the platform. They hit the platform at 4/5 of its radius from the center, adhere to it there, and continue to rotate with it. Then the monkey, with a mass of 22.1 kilogram, drops vertically to the edge of the platform, grasps it, and continues to rotate with the platform. Obtain the angular velocity of the platform with its load. Model the platform as a disk of radius 1.81 meter.
Two polarizers are out of alignment by 30°. If light of intensity 7.57 W/m2 and initially polarized halfway between the polarizing angles of the two filters passes through the two filters, what is the intensity of the transmitted light?
if 500 j of work are required to carry a charged particle between two points with a potential difference of 20 v the
A motor has coils with a resistance of 28 and operates from a voltage of 241 V. When the motor is operating at its maximum speed, the back emf is 141 V. Find the current in the coils when the motor has reached maximum speed
If a metallic wire of cross sectional area 3.0 x 10-6 m2 carries a current of 6 Amp and has a mobile charge density of 4.24 x 1028 carriers/m3, find the average drift velocity of the mobile charge carriers
A block of mass m = 4 kg slides back and forth on a frictionless horizontal track. It is attached to a spring with a relaxed length of L = 4 m, By what length is the spring extended
A hand-pumped water gun is held level at a height of 0.65 m above the ground and fired. Find the gauge pressure of the water gun's reservoir at the instant when the gun is fired
what is the maximum mass that can hang without sinking from a 90cm diameter styrofoam sphere in water? assume the
a flat sheet is in the shape of a rectangle with sides of lengths 0.400 rm m and 0.600 rm m. the sheet is immersed in a
Discuss what it was about about blackbody radiation that classical physics was unable to explain. How did Planck's theory succeed?
A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 2.54 hours. Determine what is density of the planet
A golf ball is dropped from rest from a height of 9.50 m. It hits the pavement, then bounces back up, rising just 5.50 m before falling back down again. A boy then catches the ball when it is 1.30 m above the pavement. Ignoring air resistance, cal..
Your team of test engineers is to release the parking brake so an 848.0-kg car will roll down a very long 6.1 percent grade in preparation for a crash test at the bottom of the incline. What is the terminal speed for the car rolling down this grade
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