Physics, 31.10.2019 03:31 jakails7532
In a cyclotron, the orbital radius of protons with energy 300 kev is 16.0 cm . you are redesigning the cyclotron to be used instead for alpha particles with energy 300 kev . an alpha particle has charge q=+2e and massm=6.64ร10โ27kg .
if the magnetic field isnt changed, what will be the orbital radius of the alpha particles? express your answer to three significant figures and include the appropriate units.
Answers: 2
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 04:00
Determine the maximum r-value of the polar equation r =3+3 cos 0
Answers: 3
Physics, 22.06.2019 11:20
If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant
Answers: 3
In a cyclotron, the orbital radius of protons with energy 300 kev is 16.0 cm . you are redesigning t...
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