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A violin string has a length of 0.360 m and is tuned to concert G, with fG = 392 Hz. (a) How far from the end of the string must the violinist place her finger to play concert A, with fA = 440 Hz? (b) If this position is to remain correct to one-half the width of a finger (that is, to within 0.650 cm), what is the maximum allowable percentage change in the string tension?
A gas, while expanding under isobaric conditions, does 500 J of work. The pressure of the gas is 1.6 105 Pa, and its initial volume is 1.60 10-3 m3
If the measured parallax shift of star A was 0.1 arcsecs and the parallax shift of star B was 0.05 arcsecs, What is the distance of the farthest star in light-years
During a lightning flash, there exists a potential difference of Vcloud - Vground = 1.6 x 109 V between a cloud and the ground. As a result, a charge of -15 C is transferred from the ground to the cloud. How much work Wground–cloud is done on the c..
An electon is accelerated through 25000 V. how much energy and what frequency will one photon have
On an essentially frictionless horizontal ice-skating rink, a skater moving at 3.3 m/s encounters a rough patch that reduces her speed by 41% to a friction force that is 20% of her weight
What is the wavelength of an 102.1 FM radio station and What is the wavelength of an 1310 AM radio station
A baseball is hit into the air at an initial speed of 36.7 m/s and an angle of 59.5 ° above the horizontal. At the same time, the center fielder starts running away from the batter and catches the ball 0.740 m above the level at which it was hit. If ..
A 0.200H inductor is connected in series with a 85.0? resistor and an ac source. Derive an expression for the voltage vR across the resistor
What would be the weight of the spherical mass at that location? Round your answer to the nearest tenth decimal place and give your answer in the form "a.bc x 10^(y)" N.
A military helicopter on a training mission is flying horizontally at a speed of 75.0 when it accidentally drops a bomb (fortunately, not armed) at an elevation of 450 .How much time is required for the bomb to reach the earth? How far does it tra..
A rock is thrown vertically upward from ground level at time t = 0. At time t = 1.8 s it passes the top of a tall tower, What is the height of the tower
A block of wood floats in water with 0.64 of its volume submerged. When placed in oil, the submerged fraction of the volume is 0.88. Find the density of the wood. Find the density of the oil
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