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Estimate the fraction of electrons excited above the fermi level at room temp for Aluminum. The effective mass of Al is 1.0xm, where m - free electron mass.
Suppose the current in a conductor decreases exponentially with time according to the equation I(t) = I0e-t/?, where I0 is the initial current (at t = 0), and ? is a constant having dimensions of time. Consider a fixed observation point within the..
The first puck is deflected 35.8° to the right and moves off at 0.331 m/s. Find out speed of the second puck after the collision.
How is single slit diffraction pattern and intensity affected by the width of the slit, the distance of the slit from the screen, Which of these parameters affects the pattern most
A car races at a constant speed of 25 m/s around a circular track with a radius of 150 meters. find the displacement between the starting and ending points
q1. for each of the situations below the charged particle enters a region of uniform magnetic field. illustrate a
As a bar magnet moves toward a 150-turn coil, the magnetic field (which is perpendicular to the plane of the coil) changes from 0.25 T to 0.53 T in 0.3 s. find the magnitude of the induced current in the coil
There is a region with a constant magnetic field 5.2T. The magnetic field is directed out of the page. What is the power in the rod
A rigid rod of mass 3.50 kg and length of 1.50 m rotates in a vertical (x,y) plane about a frictionless pivot through its center. Determine the size of the angular acceleration of the system
A supersonic jet passes directly overhead at an altitude of 12,930 m, traveling at 680 m/s, or mach 2. How much time elapses before you hear the sonic boom
Object O1 is 14.7 cm to the left of a converging lens with a 12.0-cm focal length. What is the focal length of the second lens
Find the resistance of the following. Power ratings are based on the assumption of a potential difference of 120 V, rms across the terminals.
A luminous object is 3.40m from a wall. You are to use a concave mirror to project an image of the object on the wall, How far should the mirror be from the wall
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