How would the self-inductance, L, of a coil change if you would increase its radius by a factor of two and increase its length by a factor of two?
A) L would not change.
B) L would be doubled.
C) L would be quadrupled.
D) L would be halved.
E) L would be reduced by 4.
D
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A K? x-ray corresponds to the missing electron orbital on an atom going from 1s to _________.
Fill in the blank(s) with the appropriate word(s).
A baseball pitcher loosens up his pitching arm. He tosses a 0.15-kg ball using only the rotation of his forearm, 0.32 m in length, to accelerate the ball. If the ball starts at rest and is released with a speed of 24 m/s in a time of 0.40 s, what torque is applied to the ball while being held by the pitcher's hand to produce the angular acceleration?
a. 1.1 N•m c. 2.9 N•m b. 11 N•m d. 1.4 N•m
The diffraction-limited resolution of a 10-meter telescope is about 0.01 arcsecond for visible light
Would you expect the actual angular resolution of a Keck 10-meter telescope in Hawaii to be better than, equal to, or worse than 0.01 arcsecond? Explain.
_______________ require that a young hot star (T ? 25,000 K) be relatively nearby
Fill in the blank(s) with correct word