Each plate of an air-filled parallel-plate air capacitor has an area of 0.0040 m2, and the separation of the plates is 0.080 mm. an electric field of 5.3 × 106 v/m is present between the plates. what is the energy density between the plates? (ε0 = 8.85 × 10-12 c2/n · m2)

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

If element x has 99 protons how many electrons does it have