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A stationary bicycle is raised off the ground, and its front wheel (m = 1.38 kg) is rotating at an angular velocity of 14.3 rad/s (see the figure). The front brake is then applied for 1.50 s, and the wheel slows down to 1.58 rad/s. Assume that all the mass of the wheel is concentrated in the rim, the radius of which is 0.330 m. The coefficient of kinetic friction between each brake pad and the rim is ?k = 0.512. What is the magnitude of the normal force that each brake pad applies to the rim?
A 6.10 g lead bullet traveling at 310 m/s is stopped by a large tree. what is the increase in temperature of the bullet
The index of refraction for a certain kind of glass is 1.648 for violet light and 1.619 for red light. find the difference between the angles of incidence of the two rays
What is the third fragment right after the explosion
Two cylinders each contain 0.20mol of a diatomic gas at 340K and a pressure of 3.0 atm. What is the final temperature of the gas in the cylinder A
When the Sun is straight overhead, a hawk dives toward the ground with the constant velocity of 4.50 m/s at 52° below the horizontal. Compute the speed of her shadow on the level ground.
Suppose a car battery provides 14 Volts when not in use. When the starter cranks, it draws 100 Amps, Find the Thevenins equivalent circuit for this battery
When a potential difference of 166 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 32.0 nC/cm2. What is the spacing between plates.
suppose the specific heats of milk and coffe are the same as that of water, and neblect the specific heat of the container.
a 200g hockey puck is launched up a metal ramp that is inclined at a 30° angle. what vertical height does the puck reach above its starting point
A sphere with radius 0.185m has density p that decreases with distance r from the center of the sphere according to p=3250 kg/m^(3) - (8750 kg/m^(3))r. Find total mass of the sphere
Two objects moving toward each other collide and rebound. Determine the change in kinetic energy of the smaller object
A 70 kg meteorite buries itself 5.5m into soft mud. The force between meteorite and the mud is given by F(x) = (680 N/m^3)x^3, where x is the depth in the mud. What was the speed of the meteorite when it firstly impacted the mud.
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