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A stationary billiard ball, mass 0.17 kg, is struck by an identical ball moving at 3.0 m/s. After the collision, the second ball moves off at 60° to the left of its original direction. The stationary ball moves off at 30° to the right of the moving ball's original direction. What is the speed of each ball after the collision?
final speed of initially stationary ball ?
final speed of initially moving ball ?
An RC Flasher circuit uses a neon lamp that becomes highly conducting when the voltage applied to it reaches Vc = 90.0 V. What "RC-time-constant" should the circuit have?
A 1290kg car and 4860kg truck undergo a perfectly inelastic collision. Before the collision, the car was traveling southward at 1.80m/s, Find the velocity of the wreckage immediately after the collision
A flywheel in the form of a uniformly thick disk of radius 1.53 m, has a mass of 12.1 kg and spins counterclockwise at 355 rpm. Calculate the constant torque required to stop it in 1.00 min
What focal length does the lens require
A world-class sprinter accelerates to his maximum speed in 4s . He then maintains this speed for the remainder of a 100m race, What is his average acceleration for the entire rac
The cyclist speeds up to a cadence of 120 (120 rotations per minute) in a surge lasting 30 seconds. What is the magnitude of angular acceleration of the wheel
For distance objects, the angular size in degrees can be appropriate as 57deg (w/d), What is the angular size of the headlights on a car 15km away if the headlight are 1.2 m apart
A sample containing beryllium (atomic mass 9 u), aluminum (27 u), and an unknown element is placed in a mass spectrometer. What is the mass of the unknown element
The brakes of a truck cause it to slow down by applying a retarding force of 4520 N to the truck over a distance of 1150 m
A coil with 50 turns (radius 15cm) with a total resistance of 4 ohms is placed in a uniform magnetic field directed perpendicularly to the plane of the coil. The magnitude of this field caries with the time according to B=Asin(alpha t) where A=80*..
A 24.7cm diameter coil consists of 45 turns of circular copper wire 1.0mm in diameter. A uniform magnetic field, Determine the rate at which thermal energy is produced
Four identical springs are used as part of a car's suspension system, one on each wheel. What will be the frequency at which the car will bounce
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