Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Particles incident from the left are confronted with a step in potential energy as shown in Figure. The step has a height U, & the particles have energy E > U. Classically, we would expect all of the particles to continue on, although with reduced speed. According to quantum mechanics, a fraction of the particles are reflected at the barrier.
[A] Prove that the reflection coefficient R for this case is as follows, where k1 = 2π / λ1 & k2 = 2π / λ2 are the angular wave numbers for the incident & transmitted particles.
Proceed as following: Show that the wave function Ψ 1 = A cos k1x + B cos ( -k1x) satisfies the Schrodinger equation in region 1, where x < 0. Here A cos k1x represents the incident beam, & B cos (-k1x) represents the reflected particles. Show that Ψ 2 = C cos k2x satisfies the Schrodinger equation in region 2, for x > 0. Impose the boundary conditions Ψ 1 = Ψ 2 & dΨ 1/dx = dΨ 2/dx at x = 0, to find the relationship between B & A. Then evaluate R = B2/A2.[B] A particle that has kinetic energy E = 6.00 eV is incident from a region where the potential energy is zero onto one in which U = 4.50 eV.a. Compute its probability of being transmitted.b. Compute its probability of being reflected.
Note the gravitational acceleration of equatorial sea level is g = 32.0088ft/s^2 and that its variation is 0.003ft/s^2/ 1000ft ascent. find the height in miles above its point for which g = 30.504 ft/s^2 and what is the weight of a 180lb man on top o..
Compute the semi major axis of the star orbit
An aging coyote cannot run fast enough to catch a roadrunner. He purchases on eBay a set of jet-powered roller skates, which provide a constant horizontal acceleration of 15.0 m/s2. The coyote starts at rest 70.0 m from the edge of a cliff at the ins..
A hollow spherical shell has mass 8.00 and radius 0.225. It is originally at rest and then rotates about a stationary axis that lies along a diameter with the constant acceleration of 0.905. What is the kinetic energy of the shell after it has turned..
The coefficients of friction for plastic on wood are μs = 0.50 and μk = 0.40. How much horizontal force would you want to apply to a 4.0-lb plastic calculator to start it moving from rest.
When in deep space, the block accelerates at 4.2 m/s^2 even as a 120 N force is applied to it. The coefficient of static friction for a particular plane and this block is 0.31. What angle can this plane make with horizontal before the object starts t..
Two cars with equal mass collide head on. One car is going 18 mph. That car is push backward about 38 feet. What is the speed of other vehicle.
What is an average velocity of the train throughout run
What is tension in each string
A 9.40kg projectile is fired vertically upward. Air drag decreases the mechanical energy of the projectile-Earth system by 69.5kJ throughout the projectile's ascent. How much higher would the projectile have gone were air drag negligible.
A proton moves perpendicular to a uniform magnetic field, B, at 1.6 multiplied by 107 m/s and experiences an acceleration of 1.8 multiplied by 1013 m/s2 in the positive x direction while its velocity is in the positive z direction. Find out the magni..
A cart carrying a vertical missile launcher moves horizontally at the constant velocity of 30.1 to the right. It launches a rocket vertically upward. The missile has an initial vertical velocity of 40.33 relative to the cart.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd