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Albert stands on a frictionless turntable, holding a bike wheel. Both Albert and the wheel are initially stationary. Albert gives the bike wheel a good spin, and it begins rotating counterclockwise. If the bike wheel has a final angular momentum of one unit, counterclockwise, what is the final angular momentum had by the rest of the system (i.e. Albert and the turntable)?
Albert flips the bike wheel upside down, so that it is now spinning the other way and has one unit of angular momentum in the clockwise direction. By how much does the angular momentum of Albert (plus turntable) change during the process of flipping the wheel?
Two runners of mass 70 kg and 60 kg,respectively, have a total linear momentum of 350 kg*m/s. The heavier runner is running at 2.0m/s. Examine the possible velocitis of the lighter runner.
The frequency of sound waves in air from a violin string are around 570 Hz. what is the wavelength of the sound waves
An LR circuit is constructed using a (10.0 +/- 0.1) ohm resistor and a (330 +/- 3) mH inductor. Determine the value of the time constant from the exponential fit
Briefly describe: (a) Charging by friction (b) Charging by contact (c) Charging by induction *In one sentence if possible.
A 425 kg bear grasping a vertical tree slides down at constant velocity. What is friction force that acts on the bear.
How many wavelengths are there in one pulse
A rocket of total mass M and with burnout mass 0.20 M attains a speed of 3 200 m/s after starting from rest in deep space. Evaluate the exhaust velocity of the rocket?
a loaded cart has a total mass of 227kg.if a 312n force acting at an angle of 30degree to the ground is applied. how much work is done in moving the cart 15meters?
A transformer is designed to change 120 V into 10,000 V, and there are 164 turns in the primary coil. How many turns are in the secondary coil
A motorist suddenly notices a stalled car and slams on the brakes, negatively accelerating at 6.2 . Unfortunately this isn't enough, and a collision ensues.
A 120 kg mail bag hangs by a vertical rope 4.00 m long. A postal worker then displaces the bag to a position 2.10 m sideways from its original position, always keeping the rope taut.
A 15.0{rm cm}-diameter non-conducting sphere carries a total charge of 2.25 mu {rm C}, distributed uniformly throughout its volume. Graph the electric field E as a function of the distance r from the center of sphere from r = 0 to r = 30.0{rm{ cm}..
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