The most circular of the elliptical galaxies are class
A. Sb.
B. E7.
C. Irr 1.
D. E0.
E. Ea.
Answer: D
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In simple harmonic motion, the magnitude of the acceleration is:
A. constant B. proportional to the displacement C. inversely proportional to the displacement D. greatest when the velocity is greatest E. never greater than g
The circuit below contains 5 identical light bulbs. The emf is 110 V. Which light bulb(s) is(are) brightest?
a.
A: The one closest to the positive terminal of the battery.
b.
A and C: The bulbs closest to the positive terminal of the battery.
c.
A and B: Because they are closest to the terminals of the battery.
d.
C and D: Because they receive current from A and B and from E.
e.
E: Because the potential difference across E is that of the battery.
A spectrum that displays a smooth variation in intensity of all wavelengths without any breaks is a(n) ____ spectrum
a. absorption b. emission c. continuous d. Doppler e. ionization
A block and a beaker of water are placed side-by-side on a scale (case A). The block is then placed into the beaker of water, where it floats (case B). How do the two scale readings compare?
1.Scale A reads more than scale B. 2.Scale A reads the same as scale B. 3.Scale A reads less than scale B. 4.Not enough information.