An athlete competing in long jump leaves the ground with a speed of 9.14 m/s at an angle of 35.0° above the horizontal. What is the length of the athlete's jump?
A) 0.876 m
B) 8.01 m
C) 12.0 m
D) 16.8 m
E) 4.01 m
B
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A. appear darker than B. radiate the same intensity of wavelengths as C. appear the same color as D. radiate more strongly at shorter wavelengths than
What evidence leads astronomers to conclude that the universe contains a mysterious dark energy?
A) The expansion of the universe is accelerating with time. B) The gravity of distant galaxies is stronger than that of galaxies nearby. C) Studies of galactic motion indicate that there is more matter in the universe than we can account for with stars and gas. D) Stars shine much more brightly than we would expect from nuclear fusion. E) The existence of such dark energy is the only way to account for evil in the universe.
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a. 1 calorie c. 1000 calories b. 100 calories d. none of the above