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A 0.33-m-long violin string has a mass of 0.89 g. The peg exerts a 45 N force on it.
Determine the lowest frequency sound produced by the vibrating sting .
An electron travelling east with velocity 7.0 x10^5 m/s enters the same electric field region as in the previous problem. How far does it go before being turned backward
A child fires a squirt gun horizontally from 1.9 meter above the ground. Find what was the water initial speed
Some asteroid named "Briggie" has been discovered revolving around the Sun on a circular orbit with a period of 3.90 years. What is the radius of Briggie's orbit
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 32.5 dB. What is the intensity delivered to the eardrum
A farsighted person uses glasses with a refractive power of 3.6 diopters. What is this person's near point when not wearing glasses
Explain three observations of Galileo which supported the Copernican Model and state also why they falsified the Ptolemaic/Aristotelian system.
A light bulb has a resistance of 275 ohm when operating with a potential difference of 230 V across it. What is the current in the light bulb
Collectible coins are sometimes plated with gold to enhance their beauty and value. Consider a commemorative quarter-dollar advertised for sale at $4.98. Find the cost of the gold added to the coin
An amateur astronomer decides to build a telescope from a discarded pair of eyeglasses. One of the lenses has a refractive power of 11 diopters, while the other has a refractive power of 1.1 diopters.
A particle moves along the x axis. Its position as a function of time is given by x = 6.8 t + 8.5 t2, where t is in seconds and x is in meters. What is the acceleration as a function of time
Determine the initial velocity (v0) of the ball soon after it leaves the hill-top. [i.e. find an expression for the velocity in terms of H, D0 and g.]
A typical American house requires an average 20 kW for heating. Explain how many homes could be heated with the waste heat of this one power plant?
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