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1. (a) Calculate the transmission probability of an a particle of energy E = 5.0 MeV through a Coulomb barrier of a heavy nucleus that is approximated by a square barrier with V0 = 15 MeV and barrier width L = 1.3 X 10-14 m. Also, calculate the probability (b) by doubling the potential barrier height and (c) by using the original barrier height but doubling the barrier width. Compare all three probabilities.
2. Consider a particle of energy E trapped inside the potential well shown in the accompanying ?gure. Make an approximate sketch of possible wave functions inside and outside the potential well. Explain your sketch.
A copper wire has diameter 0.140mm and length 11.0cm . It's in a horizontal plane and carries a current of 2.50A, Find the magnitude of the magnetic field needed to suspend the wire against gravity.
Emma and Neal are following a path through the forest. Determine how far they are from the oak tree when they stop
A ball of mass m makes a head-on-elastic collision with a second ball (at rest) and rebounds with a speed equal to one-fourth its original speed. What is the mass of the second ball.
You wish to replace the flooring in your kitchen with square linoleum tiles that measure 12 inches on a side. how many such tiles will you need to buy
A guitar string has a linear density of 8.30 x 10^-4 kg/m. The length of the string is .660 m. The tension in the string is 52.0 N. When the fundamental frequency of the string is sounded by a tuning fork of frequency 196.0 Hz, what beat frequency is..
A cylindrical tank is to be designed to contain 5kg of compressed nitrogen at a pressure of 20MPa and temperature of 25?C. What are the external dimensions
When a car makes a sharp left turn, what causes the passenger to move toward the right side of the car? inertia, centripetal force, centrifugal force, or centripetal acceleration ?
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 60.7 degrees. Find the the angle the resultant force makes with dog A's rope
In soccer, a speed record was set for kicking a soccer ball at 43m/s. If the soccer player kicked the ball from ground level at an angle of 30° from the horizontal, what would be the flight time of the soccer ball? Assume that air resistance is ne..
She determines the length of the short axis of the galaxy to be 2.9 x 1017 km. What would the length of this axis be as measured by an observer living on a planet within the galaxy?
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.27 m/s. What is his speed when he catches up
A double slit that is illuminated with coherent light of wavelength 644 nanometers produces a pattern of bright and dark fringes on a screen 6 centimeter from the slits. find the distance on the screen between the 4th and the 2nd bright fringes on ..
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