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The decay of a fictitious nucleus is accompanied by the emission of a gamma ray with wavelength 2.48 x 10-2 nm. This decay is due to the transition between two energy levels. Compute the difference between these two levels?
The use of hydrogen fusion to supply energy is a dream that might be realized in the next century. This represents a relatively clean and almost limitless supply of energy. For example, there is enough hydrogen in the ocean to create 1034 J of energy..
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.65 x104 m/s, and the radius of the orbit is5.05 x 106 m. Asecond satellite also has a circular orbit around this same planet. The orbit of this second satell..
A string that is fixed at both ends has a length of 1.61 m. When the string vibrates at a frequency of 92.8 Hz, What is the fundamental frequency of the string
A vented tank of large cross-sectional area has a horizontal pipe .12m in diameter at the bottom. The tank holds a liquid whose density is 1500 kg/m^3 to the height of 4.0 m.
300 J of work are done to compress the gas as, in the same process, 1200 J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules.
A K0 particle at rest decays into a ?+ and a ??. The mass of the K0 is 497.7 MeV/c2 and the mass of each pion is 139.6 MeV/c2. What will be the speed of each of the pions
Three long, straight electrical cables, running north and south, are tightly enclosed in an insulating sheath. One of the cables carries a 21.3 A current southward; the other two carry currents of 17.2 A and 10.8 A northward.
a 180 kg horizontal beam is supported at each end. a 295 kg piano rests a quarter of the way from one end. what is the
The speed of light in a certain piece of clear plastic is 1.87 108 m/s. A ray of light strikes the plastic at an angle of 17°. At what angle is the ray refracted
A bowling ball (m = 1200 kg), moving to the right with a speed of 3.0 m/s collides head on (in a perfectly inelastic collision) with the a ball of wax (m = 240 kg) which is moving to the left with a speed of 5.0 m/s
The motor of a four wheeler traveling along a muddy trail generates an average power of 7.90 104 W when moving at a constant speed of 15 m/s. What is the tension in the tow rope pulling the log
q1. at one point in a pipeline waters speed is 3.30 ms and the gauge pressure is 4.00times104 pa. find out the gauge
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