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The G string on a violin has a fundamental frequency of 196 Hz. It is 28.0 cm long and has a mass of 0.500 g. While this string is sounding, a nearby violinist effectively shortens the G string on her identical violin (by sliding her finger down the sting) until a beat frequency of 2.50 Hz is heard between the two strings. When this occurs, what is the effective length of her string?
____cm
what is the force per meter on a lightning bolt at the equator that carries 20,000 amps perpendicular to the earths's 3.00 x 10^3 T field
A metal bar, pivoted at one end, oscillates freely in the absence of a magnetic field. But, when it oscillates between the poles of a magnet, its oscillations are quickly damped. Why? (Such magnetic damping is used in a number of practical devices..
A guitar string is fixed between two points, 53.0cm apart. Its linear density is 12.0g/m. Now suppose the string is vibrating in its third harmonic. What is the distance between nodes
How much work has been done by an ideal gas, when the temperature of 5 moles of the gas increases by 2 Kelvin in an isobaric process
Red light of wavelength 633nm from a helium-neon laser passes through a slit 0.370mm wide. What is the width of the central bright fringe
you are bowling and have one pin left standing. you roll the 10kg bowling ball at a velocity of 1 m s into the 1kg pin
It compresses the spring, and then is pushed back in the opposite direction by the spring, eventually losing contact with the spring.
A passenger car traveling down a rough road bounces up and down at 1.3 Hz with a maximum vertical acceleration of 0.20 m/s^2, What is the maximum speed of the oscillation
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.9 m/s2 for 4.5 seconds. What is the acceleration of the tortoise
A typical digital cell phone emits radio waves with a frequency of 1.9 GHz. how many photons are emitted each second
A 65- person stands on a scale in a moving elevator while holding a 5.0 mass suspended from a massless spring with spring constant 1.10. What is the reading of the scale on which the person stands
How much heat is released when a mixture containing 23.0 g CS2 and 23.0 g Cl2 reacts by the following equation CS2(g) + 3Cl2(g) ---> S2Cl2(g) + CCl4(g) delta H= -230 kJ
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