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In the figure below, a “semi-infinite” nonconductingrod (that is, infinite in one direction only) has uniform linearcharge density λ = 5.0 μC/m.Find (a) the component of electric fieldparallel to the rod and (b) the component perpendicular to the rod at point P (R = 2 m). This questionis a little different than the book
Old naval ships fired 14 cannon balls from a 240 cannon. It was very important to stop the recoil of the cannon, since otherwise heavy cannon would go careening across the deck of the ship.
Suppose the insulating qualities of the wall of a house come mainly from a 4.0-in. layer of brick and an R-19 layer of insulation, What is the total rate of heat loss through such a wall
A point source emits sound waves with a power output of 130 W. At what distance will the decibel reading be 120 dB, which is noise level of a loud indoorrock concert?
It is known that the electric force of repulsion between two electrons is much stronger than the gravitational attraction. For two electrons at a distance d apart, calculate the ratio of the size of the electrostatic repulsion to that of the gravi..
An archer pulls the bowstring back for a distance of 0.470 m before releasing the arrow. What is the elastic potential energy of the drawn bow
The Achilles tendon inserts on the calcaneus at a distance of 8cm from the axis of the ankle joint. The force generated by the muscles attached to the Achilles tendon is 3000N, and the moment arm of this force is 5cm. a) Draw a free body diagram o..
The magnitude of vector A is 24 m, and it points in the positive y direction. What are the magnitude and direction of vector
A mass m = 6.100kg is suspended from a string of length L = 1.310m. What is the angle theta between the string and the vertical
Andy is waiting at the signal. As soon as the light turns green, he accelerates his car at a uniform rate of 8.00 meters/second2. What is the displacement of Andy's car
A ball is thrown downward from the roof of a 24 m tall building with an initial speed of 5 m/s. Use energy principles to find the speed with which the ball hits the ground. Find the time it took for the ball to reach the ground.
A 12.0 kg box on a horizontal surface is pushed with an initial speed of 1.6 m/s. It has a friction force of 20N how many seconds will it take for the box to come to a stop
If a guitar string has a tension of 20 newtons and has a mass per unit length of 9.8x10^-4 kg/m, with what speed does a pulse travel down the string
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