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An experimental bicycle wheel is placed on a test stand so that it is free to turn on its axle. If a constant net torque of 6.00 N · m is applied to the tire for 5.00 s, the angular speed of the tire increases from 0 to 100 rev/min. The external torque is then removed, and the wheel is brought to rest by friction in its bearings in 150 s.(a) Compute the moment of inertia of the wheel about the rotation axis.(b) Compute the friction torque.(c) Compute the total number of revolutions made by the wheel in the 150-s time interval.
A cylindrical tank is to be designed to contain 5kg of compressed nitrogen at a pressure of 20MPa and temperature of 25?C. What are the external dimensions
A muon and an antimuon are moving in opposite directions with velocities of -0.4 c and 0.4 c, respectively. What is the wavelength of each photon
A jet flying at 128 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, Calculate the magnitude of the necessary lifting force
A current travels northwards along a power line, in the downwards magnetic field of the earth. In which direction will the magnetic force on the wire be directed
The hypotenuse of a right triangle measures 11.5. what are the lengths of the other two sides
a 2500 kg truck moving at 10.00 m/s strikes a car waiting at a traffic light, hooking bumpers. what was the mass of the struck car
A rocket with mass 1000kg accelerates upwards at a rate of 20m/s (a) How long does it take before it is going at the speed of sound (334 m/s)? (b) How long does it take before the rocket is at a height of 100km?
A 34.0-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 225 N. What is the final speed of the crate after being pulled these 21.0 m
A solid disk is rotating about an axis with uniform angular velocity. another disk, with the same moment of intertia about the rotation axis, how is the new angular velocity related to the old one
A polar bear of mass 436 kg stands on an ice floe 58.10 cm thick. What is the minimum area of floe that will just support the bear in saltwater of density of 1030 kg/m3? The specific gravity of ice is 0.88.
A hospital needs 1 millicurie of a radioactive pharmaceutical with a half-life of 12 hours. If delivery time takes 3 days, what activity must be shipped to the hospital by the supplier
The index of refraction for red light in water is 1.331 and that for blue light is 1.340. what are the underwater angles of refraction for the blue and red components of the light
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