A jumbo jet has a mass of 100,000 kg. The thrust for each of four engines is 50,000 N. What is the jet's acceleration in meters per second squared when taking off?
A) 0.25
B) 1
C) 2
D) 4
E) none of the above
C
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This formation was created from sediments derived from uplifting mountains that were deposited
into the retreating Sundance Sea; the formation is famous for dinosaur remains:a. Morrison Formation d. Franciscan Formation b. Sundance Formation e. none of the above c. Navajo Sandstone
What are the effects of a volcanic eruption on atmosphere composition?
What will be an ideal response?
In contrast to popular culture, folk cultures are more likely to vary
A) from place to place at a given time. B) from time to time at a given place. C) both from place to place and from time to time. D) neither from place to place nor from time to time. E) with rapid change.
Light-colored ice and snow in polar regions cool the earth by reflecting incoming solar energy back into space. This process is called ____.
A. a tipping point B. Milankovitch cycles C. the albedo effect D. the greenhouse effect E. acidification