Relate differentiation to Saturn's excess internal heat
What will be an ideal response?
Saturn's atmosphere has conspicuously less helium than Jupiter's, so it appears the heavier helium is differentiating downward toward the core, and this separation is a source of the gravitational heating.
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Compound Microscope: You have a choice between two lenses of focal lengths fa and fb, where fb = 2fa, to use as the objective lens in building a compound microscope. If the magnification you obtain using lens a is Ma, what will be the magnification when using lens b?
A. Mb = 2 Ma B. Mb = 4 Ma C. Mb = 8 Ma D. Mb = Ma/4 E. Mb = Ma/2
In the process of nuclear fusion,
A) two or more nuclei fuse or stick together to form a heavier nucleus that has exactly the same mass as the original nucleus B) a heavy nucleus breaks apart into a number of smaller nuclei whose combined mass is less than the original nucleus C) two or more nuclei fuse or stick together to form a heavier nucleus whose combined mass is slightly less than the original nucleus D) two or more nuclei fuse or stick together to form a heavier nucleus whose combined mass is slightly greater than the original nucleus
The current in two identical light bulbs connected in series is 0.25 A. The voltage across both bulbs is 110 V. The resistance of a single light bulb is
A) 22 ohms. B) 44 ohms. C) 220 ohms. D) 440 ohms. E) none of the above
Planck's constant is about 7 × 10-34, in metric units. Suppose that Planck's constant were larger than it is actually is. Which of the following would then occur?
A) Individual photons would have larger energies, making it easier to observe individual photons. B) Individual photons would have larger wavelengths, making it easier to observe individual photons. C) Individual photons would move faster, even though the overall wave speed of electromagnetic radiation would not change. D) Individual photons would have shorter wavelengths, making it harder to observe individual photons. E) Individual photons would have smaller energies, making it harder to observe individual photons.