A second magnitude star in Ursa Major is brighter than a fourth magnitude star in Orion

a. True
b. False
Indicate whether the statement is true or false


True

Physics & Space Science

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This diagram represents an edge-on view of our Milky Way Galaxy. Of the four labeled points, which one is located in what we call the halo of the galaxy?

A) point 1 B) point 2 C) point 3 D) point 4

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A wire carries a steady current of 0.1 A over a period of 200 s. What total charge passes through the wire in this time interval?

a. 2 C c. 0.005 C b. 200 C d. 20 C

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If there is no external applied force, the sum of the internal stresses in a composite is equal to _________.

Fill in the blank(s) with the appropriate word(s).

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Which of these is NOT typical of a condensing protostar?

A) magnetic fields producing polar flows B) dusty disks around their equators C) Herbig-Haro objects projecting a light year out in space D) fusion of helium into carbon in their cores E) more infrared than visible light given off from the cocoon of dust around the star

Physics & Space Science