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A wave has angularfrequency 90 rad/s and wavelength1.80 m.
(a) Calculate the angular wave number.
m-1
(b) Calculate the speed of the wave.
m/s
a steel cable of diameter 3.0 cm supports a load of 2.0kN. what is the fractional length increase of the cable compared with the length when there is no load if Y=2.0 x 10^11 Pa
A helium gas cylinder has a pressure of 28 atm. After filling many balloons the cylinder has a pressure of 5 atm. What fraction of the original amount of helium remains in the cylinder
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a copper alloy has a young's modulus of 1.3 *10^11 Pa and density of 9.40 * 10^3 Kg/m^3. what is the speed of sound in a thin rod made from alloy
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The differential gear of a car axle allows the wheel on the left side of a car to rotate at a different angular speed than the wheel on the right side. A car is driving at a constant speed around a circular track on level ground, completing each l..
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For a movie scene, a 75kg stuntman drops from a tree onto a 55kg sled that is moving on a frozen lake with a velocity of 15m/s toward the shore, What is the speed of the sled after the stuntman is on board
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