Rockets that launch satellites into orbit need less thrust when fired from
A) Cape Canaveral in Florida.
B) Edwards Air Force Base in California.
C) Hawaii.
D) location does not affect the required rocket thrust.
Answer: C
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a. ejected a planetary nebula b. was a member of a close binary system c. failed to ignite carbon d. failed to ignite helium e. became a red giant has a mass 20 times larger than our Sun
Which of the following spectral types is more likely to be a flare star?
A) KIII B) MV C) GV D) I E) BII
A Hooke's law spring is compressed a distance d and is used to launch a particle of mass m vertically to a height h above its starting position. Under double the compression, the spring is now used to launch a particle of mass 2m. How high does the second mass rise above its starting position?
a. h b. 2h c. 3h d. 4h
Two displacement vectors have magnitudes of 5.0 m and 7.0 m, respectively. If these two vectors are added together, the magnitude of the sum
A) is equal to 2.0 m. B) could be as small as 2.0 m or as large as 12 m. C) is equal to 12 m. D) is equal to 8.6 m.