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A piano tuner stretches a steel piano wire with a tension of 765 N. The steel wire has a length of 0.900 m and a mass of 6.75 g.
What is the frequency of the string's fundamental mode of vibration?
What is the number of the highest harmonic that could be heard by a person who is capable of hearing frequencies up to 16 kHz?
A sphere with a diameter of 70 cm is held at a temperature of 290°C and is radiating energy. what is the emissivity of the sphere
Two mirrors meet at a 127° angle. If light rays strike one mirror at 40° as shown, at what angle ? do they leave the second mirror.
A point source of light is 200 cm below the surface of a body of water. Find out the diameter of the circle at the surface through which light emerges from the water.
How much time elapses between first splash and second splash
A subway train is traveling at 83 km/h when it approaches a slower train 46m ahead traveling in the similar direction at 23 km/h.If the faster train begins decelerating at 2.1 meter per second square while the slower train continues at constant s..
A plane leaves the airport in Galisto and flies 159km 68 degrees east of north and after that changes direction to fly 242km at 48 degrees south of east, after which it makes an immediate emergency landing in a pasture.
A long string carries a wave; a 4.00-m segment of the string contains four complete wavelengths and has a mass of 180 g. Determine the power being supplied to the string
A cube of ice, 27 cm on each side, is melted into a measuring cup. What is the volume of the liquid water
A car of mass 1290 kg rests on a hydraulic lift with a piston of radius 0.22 m that is connected to a second piston of radius 0.027 m. what is the force at the second piston
at what range of speeds can a car safely make the curve.
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, What current is induced in the square coil
A muon and an antimuon are moving in opposite directions with velocities of -0.4 c and 0.4 c, respectively. What is the wavelength of each photon
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