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A man is riding a bicycle; the wheels of a bicycle have an angular velocity of +17.0 rad/s. Then, the brakes are applied. Incoming to rest, each wheel makes an angular displacement of+15.5revolutions.
(a) Determine how much time does it take for the bike to come to rest?
(b) Compute what is the angular acceleration of each wheel?
A 85.6-kg wrecking ball hangs from a uniform heavy-duty chain having a mass of 27.0kg, Find the maximum tension in the chain
A proton high above the equator approaches the Earth moving straight downward with a speed of 345m/s. Find the acceleration of the proton
A rock is dropped off a bridge and hits the water below 3 s later. The rock is going 30 m/s before it hits the water. what is the height of the bridge above the water
A thermos contains 142 cm3 of coffee at 86.3°C. To cool the coffee, you drop two 10.1-g ice cubes into thethermos. The ice cubes are initially at 0 °C and meltcompletely. What is the final temperature of the coffee in degreesCelsius? Treat the coffee..
Calculate the number of coulombs of positive charge in 285 cm3 of (neutral) water. (Hint: A hydrogen atom contains one proton; an oxygen atom contains eight protons.)
two parallel wires are 7.4 cmapart and each carries a current of 13.2 a. if the currents are in the same direction find
a carnot engine operates between 254degc and 117degc absorbing 5.58 x 104 j per cycle at the higher temperature. a what
A cannon fires a cannonball from the top of a wall at a speed of 23.49 m/s and an angle of 30.95 degrees from the horizontal. What is the horizontal distance from the wall where the fired cannonball hits the ground
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that inthe figure below and has a range of 25 m.
q1. a power supply passing through a resistor is supposed to deliver 22-v dc at a max current of 150ma. the
At a certain part of yourdrive from home to school, your car (mass = 1400 kg) will coast inneutral at a constant speed of 84 km/h if there is no wind. What is the total resistive force
two stationary positive point charges charge 1 of magnitude 3.45 nc and charge 2 of magnitude 2.00 nc are separated by
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