From Earth, one satellite appears to overtake another. The faster satellite that is seen to overtake the other is

A) higher.
B) lower.
C) can't say


Answer: B

Physics & Space Science

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A car travels at 15 m/s for 10 s. It then speeds up with a constant acceleration of 2.0 m/s2 for 15 s. At the end of this time, what is its velocity?

A) 15 m/s B) 30 m/s C) 45 m/s D) 375 m/s

Physics & Space Science

Three resistors connected in parallel have the individual voltages labeled DV1, DV2, and DV3, respectively. Which of the following expresses the total voltage DVT across the three resistors when connected in this manner?

a. DVT = (1/DV1 + 1/DV2 + 1/DV3) c. DVT = (1/DV1 + 1/DV2 + 1/DV3)-1 b. DVT = DV1 + DV2 + DV3 d. DVT = DV1 = DV2 = DV3

Physics & Space Science

A fundamental force in nature is the

a. strong interaction b. weak interaction c. electromagnetic interaction d. gravitational interaction e. all of the above

Physics & Space Science

Lower temperatures can be expected

A) behind a stationary warm front. B) behind an advancing warm front. C) ahead of an advancing cold front. D) behind an advancing cold front.

Physics & Space Science