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Question: A neutron at rest decays (breaks up) to a proton and an electron. Energy is released in the decay and appears as kinetic energy of the proton and electron. The mass of a proton is 1836 times the mass of an electron. What fraction of the total energy released goes into the kinetic energy of the proton? Express your answer as a percentage.
a cross-sectional area of wire so as to produce a steady current of 5.00 mA, How many electrons passed this cross-sectional area in that amount of time
The chamber of a rock-tumbling machine is a hollow cylinder withmass 60 g and radius 7.1 cm. The chamberis closed off by end caps in the form of uniform circular diskseach of mass 22 g.
in fair weather over flat ground there may be a downward electric field of 155 nc. a assume that the earth is a
A reporter in the press box looks at an angle of 10.0 below the horizontal to see second base, find the horizontal distance from the press box to second base
If the radius of the circular part is 200m, find the net acceleration of the car when the angular velocity of the car is 0.2rad/s.
The partial pressure of CO2, in the expired air is 25 mm Hg and in the alveolar air it is 39 mm Hg. For an expired volume of 550ml, calculate the dead space volume
A 500- kg ice boat moves on runners on essentially frictionless ice. A steady wind blows, What was the force due to the wind
Two converging lenses (f1 = 9.00 cm and f2 = 6.00 cm) are separated by 18.0 cm. The lens on the left has the longer focal length. find is the final image upright or inverted
The operator of a linear accelerator tells a tour group that it is used to give protons energy of 450MeV. What is the value for the proton's rest energy
A spring is initially compressed by 17.5 cm. If it takes 7.166 J of work to compress the spring an additional 3.5 cm, what is the spring constant of the spring
During half a rotation the flywheel has to absorb 1000 J of energy. If the maximum permissible speed fluctuation is ± 60 RPM, what is the minimum rotational inertia of the flywheel? Assume there is no friction.
the green block b has a mass of 13.40 kg and is moving to the left at a speed of 3.50ms. the red block a has a mass of
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