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A parallel-plate air capacitor is made from two plates 0.205m square, spaced 0.830cm apart. It is connected to a 120 V battery. If the plates are pulled apart to a separation of 1.66cm , suppose the battery remains connected while the plates are pulled apart.
Part A What is the capacitance.
Part B What is the charge on each plate.
PArt C What is the eletric field between the plates.
Part D What is the energy stored in the capacitor.
A high-voltage copper transmission line with a diameter of 2.60 cm and a length of 130 km carries a steady current of 1.03 103 A. what time interval does one electron travel the full length of the line
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an emersion heater is used to boil water. assuming no heat escapes from the system, how much power must the emersion heater dissipate in order to boil five grams of water into fives grams of steam in ten minutes at standard atmospheric pressure?
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A hollow sphere of inner radius 6.8 cm and outer radius 7.8 cm floats half-submerged in a liquid of density 750 kg/m3. What is the mass of the sphere
Two lenses having focal lengths of f1=15 cm and f2=9 cm are separated by a distance of 50cm. If the lenses are moved into contact, what is their combined focal length
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An aluminum-alloy rod has a length of 10.009 cm at 16.200°C and a length of 10.021 cm at the boiling point of water. compute the length of the rod at the freezing point of water
the earth completes a circular orbit around the sun in one year. the orbit has a radius of 93,000,000 miles. what is the speed of the earth around the sun in m/s? Report your result using scientific notation.
Tritium with a half-life of 12.3 years is used to verify the age of expensive brandies. how many years ago was it produced
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