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A 220 km long high-voltage transmission line 2.0 cm in diameter carries a steady current of1020A. If the conductor is copper with a free charge density of 9.0 multiplied by 1028 electrons per cubic meter, how many years does it take one electron to travel the full length of the cable?
A bullet is fired through a board 13.5 cm thick, with a line of motion perpendicular to the face of the board. what is its acceleration as it passes through the board
an organ pipe open at both ends is vibrating with n 3 with a frequency of 769 hz. the length of the pipe is 0.5 m.
A basketball rolls without slipping down an incline of angle?. The coefficient of static friction is?s. Model the ball as a thin spherical shell. Find the acceleration of the center of mass of the ball
a railroad car of mass 2.50 104 kg moving at 2.00 ms collides and couples with two coupled railroad cars each of the
One tire is inflated to a pressure of 40 and goes a distance of 18.0 ; the other is at 105 and goes a distance of 93.4. Assume that the net horizontal force is due to rolling friction only and take the free-fall acceleration to be = 9.80.
One kilowatt-hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour, Determine the number of joules of energy in one kilowatt-hour
A 4.6muC charge is at the center of a cube 6.5 cm on each side. What is the electric flux through one face of the cube
A researcher heats a 100g piece of unknown material to 150 C,and then drops it into an insulated cup holding 300g of water at25C. What is the specific heat of the material
a solenoid has a length of 30 cm a diameter of 2 cm and containsa total of 10000 turns if it carries a current of 5a.
A 300kg piano is being lowered into position by a crane while two people steady it with ropes pulling to the sides. What is the tension in the vertical main cable supporting the piano
A large gate weighing 175 N is supported by hinges at the top and bottom of the wooden frame, and is further supported by a wire. find the sum of the vertical forces on the hinges
A basketball of mass 610g and circumference 76cm is rolling without slipping on a gym floor. Treating ball as a hollow sphere, what fraction of its total kinetic energy is associated with its rotational motion.
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