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Each atom in a chunk of copper contributes one conduction electron. Look up the density and atomic mass of copper, and calculate the Fermi energy, the Fermi temperature, the degeneracy pressure, and the contribution of the degeneracy pressure to the bulk modulus. Is room temperature sufficiently low to treat this system as a degenerate electron gas?
What is the magnitude and direction of the centripetal acceleration due to the earth's rotation at a location near Kansas City at 38 degrees latitude? I believe the answer is 2.66x10^-2 m/s^2, towards the earth's rotation axis. I need to see all ..
An electron moves in the xy plane with a speed of 3.75 x 106 m / s at an angle 600 with the x-axis 300 and the axis. A magnetic field of 0.85T is in the positive direction of axis y. Find the magnetic force on the electron.
If the elastic limit of steel is 5.0 multiplied by 108 Pa, determine the minimum diameter a steel wire can have
A 5.70 kg object on a horizontal frictionless surface is attached to a spring with spring constant 940 N/m. What is the frequency of the motion
Four equal charges of +2.6 10-6 C are placed on the corners of one face of a cube of edge length 5.0 cm. What is the magnitude of the force on the charge at the center of the cube
Two long, parallel wires separated by a distance, d, carry currents in opposite directions. If the left-hand wire carries a current i/3, and the right-hand wire carries a current i, determine where the magnetic field is zero. (Use the following as ne..
q1. a projectile is fired at an upward angle of 45 from the top of a 227 m cliff with the speed of 160 ms. what will be
a copper bar 2.5 m long has a circular cross section of radius 2 cm. one end is kept at 80 oc and the other end is kept
A 61kg skydiver can be modeled as a rectangular "box" with dimensions 21cm x 37cm x 1.8m. What is his terminal speed if he falls feet first
A cat is running at 8.0 m/s and trying to catch a mouse, who has a tenth of the mass of the cat. What is the speed of the mouse
You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. How tall is the building that the child is standing on
A block slides down a frictionless plane having an inclination of17.0°. If the block starts from rest at the top and the length of thisincline is 1.53 m, find the acceleration of the block.
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