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A puck on a horizontal frictionless table is attached to a string that passes through a hole in a table. Initially the puck rotates with a speed of 4m/s in a circle of radius 18.0 cm about the hole. The string is pulled downward through the hole until the radius of the circular path is 6.0 cm. Calculate the puck's new linear and angular speed.
At this time it has reached a height of 420 metres above launch pad and attained an upward velocity of 50 ms-1. From this time on, the rocket has constant upward acceleration -10 ms-2 (due to the effect of gravity alone).
What is the influence of friction on banked highway turns? To address this question, first consider a car that encounters a circular highway curve of radius 256m banked toward the turn center.
When a nucleus of ^235 U undergoes fission, it breaks into two smaller, more tightly bound fragments. Calculate the binding energy per nucleon for the fission product
what is the net work done on the block while it is moving from point a to point b? explain how you arrived at your
The thickness of the bubble is 115nm and the bubble is illuminated by white light at normal incidencewhat colors(wavelengths) are transmitted throug the bubble
A skater rotates at 4.5 revolutions per second (rev/s) with legs together and arms raised over his head. By extending his arms, What is the new rotation rate
a sailboat is traveling east at 5.9 . a sudden gust of wind gives the boat an acceleration 0.80 40 north of east.
a bicyclist starts a sprint with an initial speed of 2.0m/s, she moves a constant acceleration, how long did it take the bicyclist to complete the race
A broad beam of light of wavelength 692 nm is incident at90° on a thin, wedge-shaped film with index of refraction 1.50. By how much does the film thickness change over this length
The speed of a sinusoidal wave on a string depends on:
A uniform disk of mass 7.00m and radius 7.00r can rotate freely about its fixed center like a merry-go-round, What is the ratio K/K0 of the new kinetic energy of the two-disk system to the system's initial kinetic energy
A block of mass m = 3.40 kg is pushed a distance d = 2.30 m along a frictionless, Determine the work done by the net force on the block.
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