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An old-fashioned (vinyl) record rotates at a constant rate of 45 rpm. If it plays music for 17 min, how far does a point on the edge travel in meters? (Assume the radius of the record is 15 cm.)
A series LRC circuit consists of a 12.0-mH inductor, a 15.0-µF capacitor, a resistor, and a 110-V (rms) ac voltage source. what is its impedance at a frequency twice the resonance frequency
Calculate the density of the liquid if an aluminum ball with mass of m1 = 4.10kg has an apparent mass of m2 = 1.90kg
At one instant a bicyclist is 75m due east of a park's flagpole, going due south with a speed of 13.0 m/s. Then, 10s later, the cyclist is 65 m due north of flagpole, going due east with a speed of 20.0 m/s.
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.70 1011 m apart, What is the mass of the smaller star
In a single slit diffraction experiment, a beam of monochromatic light of wavelength 640 nm is incident on a slit of width 0.400 mm. what are the positions of the first dark fringes
A 47-g golf ball is driven from the tee with an initial speed of 52.0 m/s and rises to a height of 24.2 m.
As part of a safety investigation, two 1200- {rm kg} cars traveling at 24- {rm m/s} are crashed into different barriers.
The air-track carts in the figure are sliding to the right at 1.0 m/s. The spring between them has a spring constant of 120 N/m and is compressed 4.5 cm. Compute the speed of the air track carts held by a string together.
An electron and a proton are each placed at rest in an electric ?eld of 334 N/C. What is the velocity of the electron 46.2 ns after being released
In an action movie, the heroine is supposed to jump with a motorcycle from the roof of one skyscraper to another one. what minimum initial speed would she need to make the jump
It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.151 s, illustrate what is the average force exerted by the wall on the ball?
An object at rest explodes into three pieces of equal masses. One moves east at 23 m/s, while the second piece moves northwest at 14 meter per second. Find the velocity of the third piece?
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