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A guitar string is 60 cmlong. The string has a mass of 1.8g and is under a tensionof 945N.
Calculate the wavevelocity of this string.
Calculate the fundamental wavelength for this string.
Calculate the fundamentalfrequency and the next two harmonics for this string.
A capacitor is connected across an ac source that has voltage amplitude 61.0 A and frequency 81.5 Hz. What is the phase angle ? for the source voltage relative to the current? Does the source voltage lag or lead the current?
A light bulb is wired in series with a 122-? resistor, and they are connected across a 120.0-V source. What is the resistance of the light bulb
A proton is projected in the positivexdirection into a region of uniform electric fieldE=-5.50multiplied by105iN/C att= 0. Determine the acceleration of the proton
A ball of mass 1.91 kg is dropped from a height y1 = 1.35 m and then bounces back up to a height of y2 = 0.59 m. How much mechanical energy is lost in the bounce
A drag racer, starting from rest, speeds up for 402 m with an acceleration of +21.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.75 m/s2. How fast is the racer moving 2.90 102 m after the parachute opens?
The men's world record for the shot put, 23.12m, was set by Randy Barnes of the United States on May 20, 1990. If the shot was launched from 6 f above the ground at an initial angle of 42 degrees, what was its initial speed.
A 5.00g bullet is fired horizontally into a 1.20kg wooden block resting on a horizontal surface. What was the initial speed of the bullet
There is a current of 0.83 A through a lightbulb in a 120 V circuit. What is the resistance of this lightbulb
a shopper pushes a grocery cart by exerting a force on the handle. if the force equal 76 N at an angle of 40.0 degrees below the horizontal, how much force is pushing the cart in the forward direction
Two blocks connected by a massless rope are placed on an inclined plane as pictured on the right. What is the relationship between the two masses in order for the system to not move
A 115kg mail bag hangs by a vertical rope 3.5m long. Find the force needed to hold the bag in its new position
question a 0.6-kg ball is fastened to a spring with a spring constant of 86 nm and is oscillating horizontally with an
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