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A bean of 50 keV x-rays (104/second) a beam of a750 keV photons are incident on a 1 centimeter thick sample of bone. Ca density =1.93g/cm3
Compute the attenuation for each beam.
Compute the energy disposition for each beam.
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A rock takes 2.1 s to hit ground when it is thrown straigh up from a cliff with initial velocity of 7.5 m/s. Calculate height of the cliff in m & length it would take to reach the ground if thrown down with same speed.
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