Answer:
2
Explanation:
continental tropical air mass
The question is
<span />
<span>An ordinary nickel contains about 10²⁴ electrons, all repelling one another.why don't these electrons fly off the nickel?</span><span />
Answer:
You must know that to analyze the behaviour of the electrons in an atom, you must think in terms of quantum theory, not just electrostatic force.
Electrostatic considerations also is handled because the protons in the nucleus of an atoms have postive charge and they attract the electrons keeping the neutrality of the atom (same number of positive and negative charges in each atom).
Nevertheless, the "position" of the electrons in the atom is explained by the quantum theory in terms of levels of energy.
The electrons occupy orbitals (regions around the nucleus of the atom) following three rules:
1) The electrons will occupy the lower energetic level available. In principle they have these order (from lower energy to greater energy): 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p, with some variatons and exceptions.
2) Pauli's exclusion principle
At most two electrons may occupy one same atom orbital.
3) Hund's rule
Electrons with the same spin will occupy first all the orbitals with the same energy level. And this is precisely related with the repulsion force that two netatively charged particles exert on each other.<span />
What?
what do you mean by this question
<span>In polar coordinates, the origin is called the pole. Polar coordinate system is actually a two dimensional coordinate system. In this type of system the reference point is known by the name of pole. I hope that this is the answer that you were looking for and the answer has come to your desired help.</span>
Answer:
The answer to your question is: Cp = 350.4 J/ kg°C
Explanation:
Data
mass = m = 4.7 g convert grams to kilograms 0.0047 kg
heat= Q = 52.7 J
Temperature = 25 - 57 °C
Formula
Q = mCpΔT solve for Cp
Cp = Q / mΔT
Process
Cp = 52.7 / [(0.0047)(57 - 25)] Substitution
Cp = 52.7 / 0.1504
Cp = 350.4 J/ kg°C