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A vibrating source generates a harmonic wave on a string underconstant tension. If the power delivered to the string is doubled, by what factor does the amplitude change?
A softball of mass 0.200kg that is moving with a speed of 7.0m/s collides head-on and elastically with another ball initially at rest, Calculate the mass of the target ball
The question below was asked before, but this seems to ignore that the launching machine should have static friction as well, How far would the launching machine slide on the Moon
A radar for tracking aircraft broadcasts a 18.2 GHz microwave beam from a 1.03 m diameter circular radar antenna. What is the diameter (in m) of the radar beam at a distance of 25.0 km
A metal ball with a mass of 3.23·10-6 kg and a charge of +4.47 mC has a kinetic energy of 7.55·108 J. how close will it come to the plane before stopping
The hot-reservoir temperature of a Carnot engine with 26.0 % efficiency is 70.0 ?C higher than the cold-reservoir temperature. What is the cold reservoir temp
Calculate the angular momentum of a solid uniform sphere with a radius of 0.135 m and a mass of 14.0 kg if it is rotating at 5.90 m about an axis through its center
The rms speed of a sample gas is increased by 2 %, What is the percent change in the temperature of the gas
in a interference experiment d 4mm l 1m the second maximum n 2 appears on the screen at a distance 4mm from the
A person is riding a bicycle, and itswheels have an angular velocity of +25.0 rad/s. What is the angular acceleration of each wheel
An eyepiece of 2.1- cm focal length and an objective of 0.34- cm focal length are used in a standard microscope. What power should be marked on the eyepiece
A peregrine falcon dives at a pigeon. The falcon starts with zero downward velocity and dives with the free-fall acceleration. how long does it take the falcon to intercept the pigeon
A 21 g bullet travelling at 255 m/s is fired into a 0.452 kg wooden block anchored to a 100 N/m spring. How far is spring compressed to the nearest thousandth of a meter.
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