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A parallel-plate air capacitor of capacitance of 270 pF has a charge of magnitude 0.140 µC on each plate. The plates are 0.306 mm apart
1. What is the area of each plate? M2
2. What is the surface charge density on each plate? C/m2
3. What is the potential dissimilarity between the plates? V
4. What is the electric-field magnitude among the plates? V/m
A simple magnifier of refractive power 15.0 D is used to observe a beetle on a student's desk. where is the image formed relative to the lens
Consider a simple model of the hydrogen atom where one electron is in a stable orbit around one proton at a distance of 0.05 nm. If the electron were moved to a larger stable orbit (say 0.1 nm), what would be the sign of: delta U = the change in pote..
A car (mass = 1060 kg) is traveling at 39 m/s when it collides head-on with a sport utility vehicle (mass = 2380 kg) traveling in the opposite direction. At what speed was the sport utility vehicle traveling
The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ. The average rate of electric energy consumption in one house is 1.0 kW. Find the energy consumption and area required by the solar cell
At one instant a bicyclist is 25m due east of a park's flagpole, going due south with a speed of 8 m/s. Then, 11 s later, the cyclist is 65m due north of flagpole, going due east with a speed of 10 m/s.
One sphere is negatively charged, with net charge -2.25 mu C, and other sphere is positively charged, with net charge 4.00 mu C. The charge is uniformly distributed within the volume of each sphere.
A closed cylindrical tank has a height of 0.77m. The tank is at first filled with air at a pressure of 2.00 atm. Water is pumped into the tank until the air pressure reaches 6.1 atm. The temperature is constant. Find out the height of the compress..
A slab of a thermal insulator with a cross-sectional area of 120 cm2 is 3.00 centimeter thick. find how much heat flows through the slab in one day
A 50-kg dancer stands on her toes during a performance with foursquare inches in contact with the floor. What is the pressure exerted by the floor
It takes 20 turns to drive a screw completely into a block of wood. Because the friction force among the wood and the screw is proportional to the contact area among the wood and screw, the torque required for turning the screw increases linearly by ..
A 4.0cm -tall candle flame is 2.0m from a wall. You happen to have a lens with a focal length of 42cm. what is the orientation of the image
Your weight is due to the gravitational attraction of the Earth. The Moon, though, also exerts a gravitational force on you, and when it is overhead, Calculate the effect of the Moon on your weight
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