What is the highest-order (m value) maximum for wavelength 450 nm that can be obtained with a grating with 300 lines per mm?

a. 8 b. 3
c. 7 d. 4


c

Physics & Space Science

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The rotation of Uranus is peculiar in that

a. it is very slow, nearly zero. b. it is much faster than is typical for Jovian planets. c. it first turns in one direction, then stops and turns in the opposite direction. d. the axis is nearly parallel to the plane of its orbit.

Physics & Space Science

What will most likely be the long-term future of the MWG?

(More than one answer possible.)

A.In a few trillion years, all the stars, gas, and dust of the MWG will be consumed by the supermassive black hole at the galaxy's core. This will be a bad day.

B.As time goes by there will be greater and greater enrichment of the heavier elements. Stars that form from the enriched ISM will have higher levels of metallicity.

C.In a few billion years, the MWG and Andromeda galaxy (M31) will merge. During the merger, great tidal streams of stars will be drawn out of both galaxies. Ultimately, the two spiral galaxies will blend into a single galaxy.

Physics & Space Science

Comparative planetology: Describe at least one way in which comparisons of Earth with the Moon, Mercury, Venus, and / or Mars have helped us to better understand our own planet

What will be an ideal response?

Physics & Space Science

The Tully-Fisher relation exists between the galaxy's luminosity and its

A) age. B) mass. C) size. D) rotation. E) color.

Physics & Space Science