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A lazy Susan consists of a heavy plastic disk mounted on africtionless bearing resting on a vertical shaft through itscenter. The cylinder has a radius R = 10 cm and mass M = 0.23 kg. A cockroach (mass m = 0.015 kg) ison the lazy Susan, at a distance of 10 cmfrom the center. Both the cockroach and the lazy Susan areinitially at rest. The cockroach then walks along a circular pathconcentric with the axis of the lazy Susan at a constant distanceof 10 cm from the axis of the shaft. Ifthe speed of the cockroach with respect to the lazy Susan is 0.01m/s, what is the speed of the cockroach with respect to the room?answer in mm/s
A 700 lb floating platform is at rest when a 200 lb crate is thrown onto it with horizontal speed v0 = 12 ft/s. find the distance that the crate slides relative to the platform
Equal amounts of heat are added to equal masses of iron andsilver at the same initial temperature. Which metal will have the higher final temperature?
if the incident light is unpolarized about what percentage 0 to 100 of the light intensity gets through a plane
Each railroad car has a mass of 62000 kg. Nine coupled railroad car moving with a speed of 2.8 m/s collide, What is the speed of all fourteen cars after the collision
Suppose that you want to take a photograph of yourself as you look at your image in a mirror 3.1m away, For what distance should the camera lens be focused
A small air-core solenoid has a length of 18 cm and a radius of 0 . 53 cm. The permeability of free space is 1 . 25664 × 10 ? 6 N / A 2 . how many turns per centimeter (whole turns plus fractional turns) are required
Fred Jones owns 56 shares of the Robust Corporation's stock. Robust announces a 3 for 2 stock split. Explain how many shares will Fred have after this split?
a 6500-kg satellite is in a circular earth orbit that has a radius of 3.5 107 m. a net external force must act on the
A bat emits a sound whose frequency is 91.20 kHz. The speed of sound in air at 20 degrees Celcius is 343m/s. However the air temperature is 38.8 degrees Celcius, so the speed of sound is not 343m/s. imagine that air behaves like an ideal gas, and ..
An Olympic diver performs a dive from the 10m platform and achieves a speed of 14 m/s just before entering the water. Neglecting air friction, approximately how many times larger is the diver’s speed than the diver would have achieved by performin..
A circular hole in an aluminum plate is 3.263 cm in diameter at 0.000°C. What is its diameter (in cm) as the temperature of the plate is raised to 129.8°C? Give the answer to four significant figures. The linear expansion coefficient of aluminum i..
Two electrons, both with speed 1.0x10^4 m/s, are shot into a uniform magnetic field. The first is shot from the origin out along the + x-axis, compute the magnitude and direction of the magnetic field
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