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A seismographic station receives S and P waves from an earthquake, separated in time by 16.8 s. Assume the waves have traveled over the same path at speeds of 4.50 km/s and 7.40 km/s. Find the distance from the seismograph to the focus of the quake. km
In a photoelectric effect experiment, visible radiation of energy 2.91 eV is incident upon a metal of work function 1.66 eV. find the maximum kinetic energy of the ejected photoelectrons
The free oscillations of a mechanical system are observed to have a certain angular frequency w1. what is the quality factor Q
A long, straight wire carrying a current of 4.32 A is placed along the axis of a cylinder of radius 48.7 cm and a length of 2.10 m. Determine the total magnetic flux through the curved surface of the cylinder.
Two point charges totaling 9.00 ÂµC exert a repulsive force of 0.250 N on one another when separated by 0.537 m. What is the charge on each
Assume that, as lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears.
An automotive junkyard crushes old vehicles into cubes 0.44 m on a side. Assume that these cubes are made of iron. Find the resistance you would expect to encounter
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles, What is the force between the two alpha particles when they are 5.20 10-15 m apart
A 2000 kg car is slowed down uniformly from 21.0 m/s to 10.00 m/s in 3.60 s. (a) what average total force acted on the car all through that time? (b) How far did the car travel all through that time.
A fireworks rocket is launched vertically into the night sky with an initial speed of 40 m/s. find the magnitude and direction of the second piece
How would you determine the density of the paper that you use in a photocopy machine and computer printer, given the fact that a single 8.5[in] by 11[in] sheet has a thickness that is too small to directly measure with a ruler
A 310kg wooden raft floats on a lake. When a 75kg man stands on the raft, it sinks 3.20cm deeper into the water. When he steps off, the raft vibrates for a while.
Monochromatic light is incident on a diffraction grating and the first maximum is observed at an angle 5.2 degrees. At what angle is the 4th maximum seen
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