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A particle of positive energy approaches the square well illustrated in fig from the left. some of the wave will be transmitted and some will be reflected.
a) calculate the transmission amplitude
b) show that the transmission amplitude equals 1 when 2k'L = npi, where k'= [sq rt ((2m(E+V_0))/h-bar] is the wavenumber in the region of the well. thus the potential well becomes transparent at a discrete set of energies (Ramsauer effect).
IP A uniform electric field of magnitude 6 times 10^3 ;{rm{N/C}} points upward. An empty, closed shoe box has a top and bottom that are 37 cm by 28 cm, vertical ends that are 28 cm by 21cm, and vertical sides that are 21 cm by 37 cm.
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A block slides down a frictionless inclined ramp. If the ramp angle is 15o and the length of it is 19 meter, obtain the speed of the block as it reaches the end of the ramp
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Two conductors made of the same material are connected across the same potential difference. Conductor A has twice the diameter and twice the length of conductor B. What is the ratio of the power delivered to A and to the power delivered to B?
the acceleration of a particle is directly proportional to the square time t. when t 0 the particle is at x 24m.
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