I need help with this problem and an explanation for the solution described below. (University Physics 1: Thermodynamics)

No chathpt

Given a heterostructure interface (e.g. two n-type semiconductors), show how the energyband structure changes near the interface once they are attached and equilibrium isobtained. Why does this happen in terms of electron motion, “built-in” potential, maintainingband gap energy and electron affinity?

What is Fermi energy? Fermi Temperature? How to calculate the number density ofelectrons in a metal given the density of states?

How do MOSFETS work? Explain the operating principle (the fundamental physics) for asingle-electron transistor, including the criteria for making sure it works properly.

What is meant by “effective mass”? How does it relate to the electron band diagrams?

dn A material has a dispersion coefficient of dλ = -17.7 × 10-5 nm-¹, with no = 1.500 when 20 = 543.0 nm. A beam incident on the material contains wavelengths between ₁ = 425.0 nm and ₂ = 649.0 nm, and the beam's angle of incidence i is 45.45°. Use 1.000 for the index of refraction of air. Letting denote the refraction angle, what is the absolute value of the angular separation A0 of the refracted beams produced by this material? A0 =

Fapp Fishing line app A constant horizontal force F of magnitude 12.0 N is applied to a uniform solid cylinder, which is initially at rest, by a fishing line wrapped around the cylinder. The mass of the cylinder is 10.0 kg, its radius is 10.0 cm. a) Compute the torque Tapp on the cylinder from the applied force. (1 point) b) Compute the moment of inertia of the cylinder. (1 point) c) Compute the angular acceleration of the cylinder. (1 point) d) What is the rotational displacement 0 of the cylinder after t=5.00 s? (1 point) e) How many meters x of fishing line come off the cylinder in this t=5.00 s? (1 point) f) What is the kinetic energy of the cylinder after t=5.00 s? (1 point)

Ꮎ X A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 150-kg laser sensor, that measures the thickness of the ice (see the drawing). The helicopter and the sensor both move only in the horizontal direction and have a constant horizontal acceleration of magnitude ax = 2.84 air resistance We want to find the tension in the cable towing the sensor. a) Draw the free body diagram of the forces acting on the sensor. (1 point) m We will ignore b) Assume that the x direction is horizontal and the y direction vertical as in the drawing. Write the projection of the tension force T on the x-y coordinates using the unknown angle 0. (1 points) c) Apply the Newton second law to the x and y axis separately. (1 points) d) From the two obtained equations compute the value of the angle 0 and the magnitude of the tension force in the cable. (2 points)