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A steel spoked motorcycle wheel without the rubber tire is rotating by angular speed of 27.3 rad/s. The temperature of the wheel changes from 10 degrees Celsius to 210 degrees Celsius. There is no net external torque acting on the wheel and the spokes mass is negligible. Does the speed increase or decrease as the wheel heats up? Why? What is the final angular speed?
A 6.0 kg sled is initially at rest on horizontal road. The coefficient of kinetic friction between the sled and the road is 0.40. The sled is pulled a distance of 3.0 m by a force of 37 N applied to the sled atan angle of 30° to the horizontal.
a 10 kg test rocket is fired vertically. its fuel propels it to a heaight of 100 m, what additional height will the rocket rise given the kinetic energy
q1. a 370-kg sailboat has an acceleration of 0.87 ms2 at an angle of 64deg north of east. find the magnitude and
A Carnot engine uses hot and cold reservoirs that have temperatures of 1850 and 845 K, respectively. The input heat for this engine is QH. The work delivered by the engine is used to operate a Carnot heat pump. The pump removes heat from the 845-K re..
Skateboard with a mass of 3kg is moving at a speed of 5 m/s on a level surface. It encounters a hill and rolls up until it stops. To what vertical height does it rise
Charge A and Charge B are 5.00m apart, A is +3.00 C and charge B is +7.00C, How far from charge A is charge C
Your accident-reconstruction team has been hired by the local police to analyze the following accident. A careless driver rear-ended a car that was halted at a stop sign. Now before impact, the driver slammed on his brakes, locking the wheels.
suppose that a 6.14-ms wind is blowing across the roof of your house. the density of air is 1.29 kgm3. determine the
Certain rifles can fire a bullet with a speed of 950 m/s just as it leaves the muzzle (this speed is called the muzzle velocity). What is the acceleration of the bullet within the rifle
A line of charge with uniform density of 32.0 nC/m lies along the line y = -15.0 cm, Find the electric field it creates at the origin
the magnetic field component of the electromagnetic wave is 15.0 ?t. what is the magnetic energy density of the
Two isotopes of a certain element have binding energies that differ by 4.9060 MeV. Find the difference in atomic mass between the two isotopes
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