Answers: 1
Physics, 22.06.2019 01:30
In a thunderstorm, charge builds up on the water droplets or ice crystals in a cloud. thus, the charge can be considered to be distributed uniformly throughout the cloud. for the purposes of this problem, take the cloud to be a sphere of diameter 1.00 kilometer. the point of this problem is to estimate the maximum amount of charge that this cloud can contain, assuming that the charge builds up until the electric field at the surface of the cloud reaches the value at which the surrounding air breaks down. this breakdown means that the air becomes highly ionized, enabling it to conduct the charge from the cloud to the ground or another nearby cloud. the ionized air will then emit light due to the recombination of the electrons and atoms to form excited molecules that radiate light. in addition, the large current will heat up the air, resulting in its rapid expansion. these two phenomena account for the appearance of lightning and the sound of thunder. take the breakdown electric field of air to be eb=3.00ฤโ106n/c. part a estimate the total charge q on the cloud when the breakdown of the surrounding air is reached. express your answer numerically, to three significant figures, using ฤยต0=8.85ฤโ10รขโ12c2/(nรขโนโฆm2) .
Answers: 2
Physics, 22.06.2019 09:30
1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.
Answers: 1
Physics, 22.06.2019 13:30
Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline
Answers: 1
Physics, 22.06.2019 21:30
Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmnโazm)c2?
Answers: 1
Why do crumple zones reduce the force in a collision....
History, 18.09.2020 02:01
Chemistry, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01
Mathematics, 18.09.2020 02:01