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A thin flat nonconducting disk, with radius R_0 and uniformsurface charge density carries a total charge Q, and has a hole with a radius R_0 / 3 in its center. Use first principles to find the electric potential V at points along a line perpendicular to the disk, and passing through its center. Choose V = 0 at infinity.
Two friends are carrying a crate of mass 200 kg up a flight of stairs. The crate has length 1.25 m and height 0.500 m, What is the magnitude of the upper person's force
Using your knowledge of statics, discuss briefly why the magnitude and direction of the knee reaction force varies with the amount of lower leg flexion and the amount of added weight.
You are standing on a brigde that is 50.0 m above a dried up riverbed. what is the minimum spring constant that the bungee cord must have for you not to hit the riverbed
A 65 kg person jumps from awindow to a fire net 23 m below, whichstretches the net 1.5 m. How much would it stretch if the person jumped from 30 m
A circular rod of length 25cm and diameter 8mm is made of 1045grade steel. (a) calculate the stress and strain in the rod, andits extension, when it is subjected to 5kN of tension. (b) Atwhat force would the rod begin to yield? (c) by what amount ..
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 1.26 eV. What is the width of the square well
You are 1.9 m tall and stand 3.4 m from a plane mirror that extends vertically upward from the floor. What is the minimum height the mirror must have
A student sees a newspaper ad for an apartment that has 1630 square feet (ft2) of floor space. How many square meters of area are there
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 290 N/m. Two small charged objects are attached to this spring, one at each end. The charges on the objects have equal magnitudes.
A 2.0kg wood block is launched up a wooden ramp that is inclined at a 35 degree angle. The block's initial speed is 10 m/s. What vertical height does the block reach above its starting point
Define FM and what parameter of the intelligence signal causes frequency deviation of the carrier?
A large truck collides head-on with a small car. The car is severely damaged as a result of the collision. According to Newton's third law, how do the forces acting between the truck and car compare during the collision?
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