When the principal quantum number is n = 5, how many different values of m? are possible?
1.1
2.5
3.9
4.25
3
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Determine the expected temperature drop at the contact between two 304 stainless steel parts if the overall temperature drop across the two parts is 100ºC.
What will be an ideal response?
Coulomb's Law: Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude F due to the other. With time, charge gradually diminishes on both spheres by leaking off. When each of the spheres has lost half its initial charge, what will be the magnitude of the electrostatic force on each one?
A. 1/16 F
B. 1/8 F
C. 1/4 F
D. 1/2 F
E. 1/
F
When we say an appliance "uses up electricity," we mean
A) current disappears. B) electric charges are dissipated. C) voltage is lowered. D) electric energy dissipates into heat.
In recent years, many planetary systems have been discovered around distant stars. This has been accomplished, not by direct observation of the planets themselves, but indirectly, by observing a wobbling motion in the star
Why is this wobbling motion evidence of a planet?