Physics, 30.08.2019 11:30, janeou17xn
What is the smallest part of a compound that has the properties of that compound
Answers: 1
Physics, 22.06.2019 01:30, kadinmorgan
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=3.00Äā106n/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 ÄĀµ0=8.85Äā10Ć¢ā12c2/(nĆ¢ā¹ā¦m2) .
Answers: 2
Physics, 22.06.2019 11:20, puppylove899
Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .
Answers: 3
Physics, 22.06.2019 16:30, JJlover1892
What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?
Answers: 2
Physics, 22.06.2019 17:00, nathanb126
The force it would take to accelerate an 900-kg car at the rate of 6m/s2
Answers: 1
What is the smallest part of a compound that has the properties of that compound...
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