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One string of a certain musical instrument is 72.0 cm long and has a mass of 8.76 g . It is being played in a room where the speed of sound is 344 m/s . A)To what tension must you adjust the string so that, when vibrating in its second overtone, it produces sound of wavelength 0.757 m ? (Assume that the breaking stress of the wire is very large and isn’t exceeded.) B) What frequency sound does this string produce in its fundamental mode of vibration?
A uniform rod of mass 3.05×10^-2?2kg and length 0.370m rotates in a horizontal plane about a fixed axis through its center, compute the angular speed of the rod after the rings leave it
A marble slide towards a 2nd marble at rest along the surface of frictionless table-top. What is the velocity of the 2 bodies after collision
An airplane propeller is rotating at 1250rpm. Compute the propeller's angular velocity
A camera's flash uses the energy stored in a 270µF capacitor charged to 170V. The current in the charging circuit is not to exceed 23mA. What's the resistance in the charging circuit
You are 1.7m m tall and stand 3.5m m from a plane mirror that extends vertically upward from the floor. What is the minimum height the mirror must have for you to be able to see the top of the table in the mirror
A copper pot with a mass of 0.485kg contains 0.175kg of water, and both are at a temperature of 20.0?C. Find the final temperature of the system
The coefficient of static friction between the 3000 lb car's tires and the road is 0.5. Determine the steepest grade the car can drive up at constant speed if car has (a) rear=wheel drive; (b) front-wheel drive; (c) four wheel drive.
A rubber ball is shot straight up from the ground with speed V0. Simultaneously, a second rubber ball at height h directly above the first ball is dropped from rest
A cosmic ray interacts for a mere 11fs with its detector. Having just learned about the uncertainty principle, Find the minimum uncertainty in that energy
question1a knight sits on a castle wall during a siege. to while away time he notes that boulders catapulted from below
An air-filled toroidal solenoid has a mean radius of 10.0 cm and a cross-sectional area of 7.00 cm^2. How many turns does the winding have
Two circular loops are centered on the x-axis parallel to the yz-plane. The smaller loop is stationary with radius r=0.01m, and resistance R=0.003Ohms. The larger loop has radius, s=0.1m, carries current I=1.5A, and moves towards the smaller loop ..
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