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Question: A typical nuclear reactor produces about 2.5 × 109 J of thermal energy in 1s.
a. What mass does this energy correspond to?
b. If 200MeV of energy is released per fission, how many fissions occur per second in this nuclear reactor?
c. What fraction of the mass of a 235U nucleus is converted into thermal and radiant energy when it undergoes fission?
A proton circles Earth at an altitude of 500 km traveling at a speed of 2.0 X 10^7 m/s above the equator. What is the strength of the magnetic field acting on it?
Now suppose the friction is sufficient to keep the car from skidding. Compute the magnitude of the normal force exerted on the car by the road's surface.
A radio station broadcasting on a frequency of 106 MHz is received with an astronaut headed toward the station at a speed1.0×107 m/s. To what frequency should the astronaut's radio be tuned?(MHz)
Lets assume that a very, very small drop of rain starts its way somewhere up in the sky with a mass of m0 and a velocity of 0. We know that when it hits the ground, its usually not that small, and the question of how it grows in mass arises. Lets ..
An energetic father stands at the summit of a conical hill as he spins his 22 child around on a 5.3 cart with a 2.2m-long rope. The sides of the hill are inclined at 25 degrees. He keeps the rope parallel to the ground, and friction is negligible.
Illustrate what minimum speed will allow the ball to clear the roof?at what angle should the ball be tossed. (in picture at roof starts at 3m and the angle of the roof there is 45degrees
If the highest acceleration the vehicle's brakes are capable of is -5 m/s2, what is the maximum reaction time of motorist that will allow her or him to keep away from hitting the deer.
a proton moves through a magnetic field at 29.9 of the speed of light. at a location where the field has a magnitude of
What is a hydrogen bond? Why can't we destroy bothersome pollutants by just dissolving them in the ocean? Every time you use your bottle of vinegar-and-oil salad dressing, you have to shake it up. Why?
The desperate contestants on a TV survival show are very hungry. The only food they can see is some fruit hanging on a branch high in a tree. With what speed does the rock leave the spring
A certain species of ionized atoms produces an emission line spectrum according to the Bohr model, Find the next-to-the-longest wavelength in the series of lines
If a person's far point is at 43 cm, what should be the dopter power of corrective eyeglasses? Assume that the eyeglasses are 1.2 cm from the eye.
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