Physics

Physics, 18.08.2019 22:30, chazpooh39151

What is the equation for calculating electric power?

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Physics, 05.08.2019 22:20, khynia11

For dry air at a temperature of 0°c and at 1 atm of pressure, electric breakdown occurs when the air is subjected to an electric field with amplitude above about 3.00 mv/m. a high-power laser is shone up into earth's atmosphere, and the laser's associated electric field ionizes the air and turns it into a conducting plasma. assume the conditions of the air are such that an electric field of 3.00 mv/m causes the air to ionize. (a) what will be the intensity (in w/m2) of a laser beam that can produce a field of this magnitude? w/m2 (b) assuming the laser is operating at this maximum intensity, what is the power (in w) delivered in a cylindrical beam with a diameter of d = 4.10 mm? remember that the intensity is defined as power per unit area; solve this relationship for power. w

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Physics, 18.08.2019 21:50, McSporter

What is the equation for calculating the heat energy released during heating effect of electric current?

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Chemistry, 06.10.2019 19:00, IsoSaysHi

Here is the balanced chemical equation for the combustion of isopropyl alcohol: 2c3h7oh(l) + 9o2(g) → 6co2(g) + 8h2o(g) multiplying 42 by 2/3, or 0.667, would be most useful for which calculation? a. calculating the moles of o2 needed to produce 42 moles of co2. b. calculating the moles of co2 that will form from 42 moles of c3h7oh. c. calculating the moles of o2 that will react completely with 42 moles of c3h7oh. d. calculating the moles of co2 that will form from 42 moles of o2.

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