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The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles (helium nuclei, each consisting of 2 protons and 2 neutrons).
(a) What is the force between the two alpha particles when they are 5.20 10-15 m apart?
(b) What is the initial magnitude of the acceleration of the alpha particles due to this force? Note that the mass of an alpha particle is 4.0026 u.
A thin spherical shell of mass 4.00 kg and diameter 0.200 m is filled with helium (density ? = 0.180 kg/m3). How long will it take for the top of the shell to reach the water surface
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What is an average magnitude of the Pointing vector 5.0miles from a radio transmitter broadcasting isotropically with an average power of 250-kW?
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A 115-? resistor, a 64.6-mH inductor, and a 190-?F capacitor are connected in series to an ac generator. At what frequency will the current in the circuit be a maximum
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