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The potential equals 400 V at 1.00 m from a very large, flat dielectric sheet that carries a surface charge density of -1.00 x 10^-8 C/m2. Find the potential 3.00 m from the sheet.
When a satellite orbits the earth in a non-circular orbit which of the following is true.
A 0.34 kg iron horseshoe that is initially at 616 ?C is dropped into a bucket containing 25 kg of water at 28 ?C. What is the final equilibrium temperature? Avoid any energy transfer to or from the surroundings and assume the specific heat of iron is..
What is the total negative charge, in coulombs, of all the electrons in a small 1.05{\rm g} sphere of carbon? One mole of C is 12.0{\rm g} , and each atom contains 6 protons and 6 electrons.
A subway train has three cars, each weighing 1.20 x 10^5 N. The frictional force on each car is 103 N, and the first car, acting as an engine, exerts a horizontal force of 4.80 x 10^4 N on the rails.
Two small objects are hung, from a point, on strings 50 cm long. they each have mass .06 grams and are given equal charges if the strings each make an angle of 37 degrees with a vertical, what is the magnitude of the electric force between the ob..
An 825-N sled is pulled a distance of 161 m. The task requires 1.50 ^ 10^4 J of work and is done by pulling on a rope with a force of 137 N. At what angle is the rope held.
A 2.31?102g piece of copper at a temperature of 401.K and a 1.07?102g piece of aluminum at a temperature of 2.17?102K, What is the equilibrium temperature of the mixture
A subway train starts from rest at a station and accelerates at a rate of 1.56m/s2 for 13.7s, Find the total distance covered
A 13g bullet traveling 221 m/s penetrates a 2 kg block of wood and emerges cleanly at 160 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
Suppose it was launched form a launch pad in a space vacuum. Would it work? Illustrate what changes would we observe? Explain
Find out the direction of the train motion
An outfielder throws a baseball to his catcher in an attempt to throw out a runner at home plate. The ball bounces once before reaching the catcher.
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