A traveler has about $536 in his checking account, about $2107 in his savings account and exactly $7.62 in his wallet. To the greatest precision warranted, how much money does this shopper have?

A) $2651
B) $2,650
C) $2,650.6
D) $2,650.62
E) $2,650.620


A

Physics & Space Science

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If the distance between us and a star is doubled, with everything else remaining the same, the luminosity

A) is decreased by a factor of four, and the apparent brightness is decreased by a factor of four. B) is decreased by a factor of two, and the apparent brightness is decreased by a factor of two. C) remains the same, but the apparent brightness is decreased by a factor of two. D) remains the same, but the apparent brightness is decreased by a factor of four. E) is decreased by a factor of four, but the apparent brightness remains the same.

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A deuteron has the same charge as a proton but approximately twice the proton mass. Suppose deuterons are being accelerated in a cyclotron in an orbit of radius 75 cm at a frequency of 8.0 MHz. What magnetic field is needed?

A) 0.011 T B) 0.11 T C) 1.1 T D) 11 T E) 111 T

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How would the geometry of a universe with ?o greater than 1 differ from one with ?o less than 1?

What will be an ideal response?

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What is the largest object found between Mars and Jupiter?

a. Comet Halley b. Asteroid Ceres c. Comet Hale-Bopp d. Comet Tempel e. Asteroid Vesta

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