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The lowest note on a grand piano has a frequency of 27.5 Hz. The entire string is 2.00 m long and has a mass of 440g . The vibrating section of the string is 1.75m long.
What tension is needed to tune this string properly?
A pipe is open at both ends. Its length is 22.81 cm. If I excite standing waves in the pipe by blowing air over one of its ends, Find the distance between the antinodes at the two ends of the pipe
A heavy piece of machinery is raised by sliding it a distance d = 15.0 m along a plank oriented at angle ? = 30° to the horizontal, How far is it moved vertically and horizontally
A cue ball hits a stationary eight ball on a pool table. For which of the following systems is there a change in momentum during the collision? define why.
examine the strengths and weaknesses of the various measures of investment attractiveness as used by Euro land Foods. Will all of the measures rank the projects identically? Explain why of explain why not?
Three blocks, each having a mass of 1.16 kg, are connected by rigid rods of negligible mass and are supported by a frictionless surface, find the magnitude of the force applied by the rod on the left
A 5.20 microFarad parallel-plate air capacitor has a plate separation of 5.00mm, Calculate the energy density in the region between the plates, in units of J/m^3
A gymnast with mass m1 = 49 kg is on the balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 126 kg and length L = 5 m. Each support is 1/3 of the way from each end. Initially the gymnast stands at the left en..
A rotating cylinder about 25 km long and 9 km in diameter is designed to be used as a space colony. with what angular speed must it rotate so that residents on it would experience the same acceleration due to gravity as on earth? In radians per se..
A 80.0cm3 box contains helium at a pressure of 2.30atm and a temperature of 90.0?C. What is the final pressure in each box
A 36.0 kg uniform beam is attached to a wall with the hinge while its far end is supported by a cable such that the beam is horizontal.
A solid sphere of radius R carries a volume charge density ?=?0e^r/R, Find an expression for the electric field strength at the sphere's surface
Jack was exposed to fast neutrons; he received a radiation dose of 220rem rem on part of his hand, affecting 28.0grams of tissue. How much radiation did Jack receive
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