If a star has an extrasolar planet, the amplitude of its radial velocity curve is related to the planet's
A) mass
B) orbital shape
C) orbital period
D) radius
A
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An image of Mars taken with the Hubble Space Telescope shows a small Northern polar cap and a large Southern Polar cap. What season is it in the Northern hemisphere?
A) spring B) fall C) summer D) winter
Sunsets are red because sunlight must pass through more atmosphere then, and the atmosphere scatters even more light at bluer wavelengths, leaving mostly red light to color the sky
Indicate whether the statement is true or false
A wavelength of 573 nm yields a first order (m = 1) maximum at 40° with a grating. At what angle will the second order (m = 2) maximum appear for this wavelength?
a. 17.5° b. No second order maximum exists in this case. c. –40° d. 80°
Precipitation is produced by
A) a rising air mass. B) a descending air mass. C) condensation of water vapor in the air to make clouds and cloud droplets that fall as liquid water or ice. D) all of the above