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A single 212Po nucleus, initially at rest, emits an alpha particle as it decays into a 208Pb nucleus. There are no other decay products, and the kinetic energy of the alpha particle is measured to be 1.407 × 10-12 J.
1. What is the total amount of nuclear potential energy, in joules, that was released in this process?
2. What is the difference between the original mass of the 212Po nucleus and the total mass of the fragments after the decay?
Coherent light with wavelength 610 passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3 from the slits. The first-order bright fringe is a distance of 4.84 from the center of the central bright..
The activation energy for vacancies in Cu is w.28 eV. Find the fractional number of vacancies at the melting temperature. Estimate the contribution of vacancies to the thermal expansion at the melting temperature.
A 19.6cm diameter coil consists of 40 turns of circular copper wire 1.7mm in diameter. estimate the current in the loop
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Two identical positive charges exert a repulsive force of 7.4 x10-9 N when separated by a distance of 4.8 10-10 m. compute the charge of each.
A small rocket maintains a constant thrust as to produce an acceleration of 2 m/s^2. determine the maximum achieved rocket thrust
If a beam of gamma rays with an initial intensity of Io passes through an absorber in which the mean free path lambda = 2.6 mm
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Sam pushes a 10.0-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of 4.0 N starting from rest. What is the speed of the sack after Sam has pushed it a distance of 20 cm
An uncharged capacitor is connected to the terminals of a 4 battery, and 12 flows to the positive plate. The 4 battery is then disconnected and replaced with a 7 battery, with the positive and negative terminals connected in the same manner as bef..
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