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A total of 3.04 106 electrons are placed on an initially uncharged wire of length 1.23 m.
(a) What is the magnitude of the electric field a perpendicular distance of 0.360 m away from the midpoint of the wire?
(b) What is the magnitude of the acceleration of a proton placed at that point in space?
(c) In which direction does the electric field force point in this case?
Some rear view mirrors produce images of cars behind you that are smaller than they would be if the mirror were flat. What is the mirrors radius of curvature if cars 25.0 m away appear 0.33 times their normal size?
A motor develops 0.75 kW of power at 2000 revs per 10 min. What torque is applied to the motor shaft
A 24 inch string is wrapped around the 1/8 inch radius axis of a yo yo. Starting from rest, the yo yo descends with the constant angular acceleration of 4 rad/seconds squared. How long will it take the string to totally unwind.
Billy is running on level ground with a speed of 3.5 m/s. He attempts to jump a ditch that is 1.5 meters wide. if the horizontal component of his velocity does not chance.
Staring from rest, a hoop rolls without slipping down a long ramp. What is its translational speed when it's 5.0 m below its initial height, determine the hoop's translational speed
what is the smallest value d can have before the string breaks?
If she is served 200 of coffee at 84 in a well-insulated container, how much ice at 0 should she add to obtain a final temperature of 31.
What is the coefficient of the kinetic friction of the tires and pavement.
You want to create an electric field at location. where would you place an electron to produce this filed at the origin
A metallic sphere has a charge of +3.7 nC. A negatively charged rod has a charge of -6.0 nC. When the rod touches the sphere, 7.2 109 electrons are transferred. What are the charges of the sphere and the rod now?
An asteroid is discovered heading straight toward Earth at 13 km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 min, after which the asteroid is moving at 26 degree to its original path at..
You are rotating a 2.0kg rock in a vertical circle,using a very light string. Find the speeds of the rock at the highest and lowest position
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