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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?
Sketch a free body diagram for each block, identify all forces acting on the block. Caclulate the acceleration of the blocks. Calculate the tension in the rope.
What is the magnitude of the electric field midway among two point charges, -17.0 C and +12.1 C, that are 7.52 cm apart? What is the direction of the electric field?
question two point charges are located on the x axis. the first is a charge q at x -a. the second is an unknown charge
A plane flying horizontally at a speed of 50.0 m/s and at an elevation of 160 m drops a package. How far apart will the two packages land on the ground (ignore air resistance)
A Thermo pane window consists of two glass panes, all 0.32 cm thick, with a sealed layer of air of thickness 0.7 cm among them. If the inside surface temperature is 18? Cand the outside surface temperature is 1?
You have a summer job working for a company that designs amusement park rides. Their latest rollercoaster design involves a circular loop-the-loop with a radius of 12 meters. Neglecting friction, what's the minimum energy required for ensuring tha..
A 75.0 kg rider sitting on a 7.6 kg bike is riding along at 8.7 m/s in the positive direction. The rider drags a foot on the ground and slows down to 6.5 m/s still in the positive direction. What is the change in momentum of the rider and bike? What ..
A helicopter is flying horizontally at a speed of 60 m/s and accidentally drops a storage pod from an elevation of 300 m. find how long does it take for the storage pod to hit the ground
A 280 g block on a 50.00 cm-long string swings in a circle on a horizontal, frictionless table at 70 rpm.
What is the magnitude of the electric force between a proton and an electron when they are at a distance of 1.91 angstrom from each other
An arrow is shot vertically upward and then 2.06 s later passes the top of a tree 41.3 m high. How much longer will the arrow travel upward
A 5 kg and a 2 kg masses are connected by a massless string, which is wrapped around a frictionless pulley. The moment of inertia of the pulley is I = 0.1 kg m2 with radius R = 0.2 m. All surfaces are frictionless. The string does not slip on the ..
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