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A parallel-plate capacitor is charged to an electric potential of 343 Volt by moving 3.69 E+16 electrons from one plate to the other. Determine how much work is done in charging the capacitor?
Two charged objects experience a mutual repulsive force of N. If the charge of one of the objects is reduced by a factor of and the distance separating the objects is increased by a factor of , what is the new force?
Assume that the interior of the earth can be treated as an incompressible fluid in equilibrium. {HINT: Let ? denote the density; take ? to be a constant; ? = M/V.}
A mail bag with a mass of 120 is suspended by a vertical rope of length 8.00. How much work is done by the worker in moving the bag to this position
In the standing wave experiment, the length of the string is 1.400 m. When a mass of 80 grams is hung, the 7th harmonic is obtained. find the frequency of the vibrator
An unknown substance has a mass of 0.125 kg and an initial temperature of 77.9°C. The substance is then dropped into a calorimeter made of aluminium containing 0.285 kg of water initially at 30.0°C. The mass of the aluminium container is 0.150 kg, an..
An electrical engineer constructs a cylindrical solenoid of area 6 cm2 and length 20 cm from 160 m of thin wire. How much energy can the inductor store
A glass flask whose volume is 1000cm^3 at a temperature of 0.400^ C is completely filled with mercury at the same temperature. When the flask and mercury are warmed together to a temperature of 52.0 C, a volume of 8.25cm^3 of mercury overflows the..
A person with a mass of 71.6 kg and a volume of 0.089 m3 floats quietly in water. (a) What is the volume of the person that is above the water? If an upward force F is applied to the person, the volume of the person above the water increases by 0...
You want to support a sheet of fireproof paper horizontally using only a vertical upward beam of light spread uniformly over the sheet. There is no other light on this paper. The sheet measures 22.0cm by 28.0 cm and has a mass of 1.50g.
A Single Turn, Square Loop A 0.408 m length of wire is formed into a single-turn, square loop in which there is a current of 14.3 A. What is the maximum torque that the loop can experience
1. why were the relative intensities of an elements spectral line not all the same?2. the next corresponding hydrogen
The average distance from the earth to the sun is called the astronomical unit (AU). does it obey Kepler's third law
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