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A point particle has a charge equal to +2.30 μC and isfixed at the origin.a) What is the electric potentialV ata point 3.80 m from the origin assuming that V = 0 at infinity?b) How much work must be done to bring a second point particlethat has a charge of +2.40 μC from the infinity to a distance of3.80 m from the +2.30-μC charge?
The power output of a cyclist moving at a constant speed of 4.8 m/s on a level road is 140 W. What is the force exerted on the cyclist and the bicycle
A 2.60kg box that is several hundred meters above the surface of the earth is suspended from the end of a short vertical rope of negligible mass, At what value of t does the box return to its initial position
A star with the same mass and diameter as the sun rotates about a central axis with aperiod of about 28.4 days. What would be the new rotation period (s) of the star
A tow truck is pulling a car out of a ditch by means of a steel cable (Y = 2.0 x 1011 N/m2) that is 8.24 m long and has a radius of 0.402 cm. How much has the cable stretched
Consider a thick spherical shell with total charge Q, inner radius R(i), and outer raduis R(o). Within the shell, charge is not distributed uniformly: the volume charge density p(r) is proportional to r^-2.
Capacitors C1= 13 uF and C2=25 u F are each charged to 15 V , then disconnected from the battery without changing the charge on the capacitor plates. estimate the potential difference across each capacitor
A delivery truck travels 32 blocks north, 16 blocks east, and 26 blocks south. Assume the blocks are equal length. Illustrate what is the magnitude of its final displacement from the origin?
When the decibel of traffic in the street goes from 40 to 60 dB, How much louder does the traffic noise seem
A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.884 A) sin [(333 Hz)t]. What is the average power delivered to the light bulb
Two charges, one twice as large as the other, are located 15 apart and experience a repulsive force of 95. What is the magnitude of the larger charge
The leg and cast weigh 290 -N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w2 weighs 120 N. Determine the weight w1 and angle α needed in order that there is no force exerted on the hip joint by the le..
A concrete block of msss 10kg is pulled 7.0m across a frictionless surface by means of a rope and the net work done on the block is 220J. obtain the magnitude of the normal force acting on the block
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