A 100-W light bulb is in a socket supplied with 120 V. What is the current in the bulb?
a. 7200 A
c. 1.4 A
b. 0.83 A
d. 0.50 A
B
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The leading explanation for the existence of spiral arms are:
A) shock waves from cyclic supernovae explosions. B) shock wave from the quasar-like eruption of the galactic core. C) passages of spiral density waves through the interstellar medium. D) passages of massive globular clusters through the galactic plane. E) tidal streams of small galaxies being torn up by our monster Galaxy.
In general, the ________ lunar craters sit atop the mare
Fill in the blank(s) with correct word
The electric potential of a charge distribution is given by V(x, y) = 2xy - x2 - y. At which point is the electric field equal to zero?
A) x = 0.5, y = 1 B) x = 1, y = 1 C) x = 1, y = 0.5 D) x = 0.5, y = 0.5 E) x =0, y = 0
Your temperature is 98.6°F. Assuming your skin is a perfect radiator (e = 1), determine the wavelength corresponding to the largest intensity (in mm)
a. 8.0 b. 9.3 c. 3.0 d. 5.7 e. 29.4