How would an inflated landing module bounce if it were dropped ontothe surface ofEarth from the same altitude as it was on Mars?
a) It would bounce higher sometimes and lower sometimes on the surface of Mars.
b) It would not bounce at all.
c) It would bounce higher and slower than it did on the surface of Mars.
d) It would bounce lower and fewer times than it did on the surface ofMars.
e) It would bounce higher and more times than it did on the surface ofMars.
Ans: d) It would bounce lower and fewer times than it did on the surface ofMars.
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If you double the pressure on the surface of a can of water, the buoyant force on a stone placed in that water will
A) decrease, but not by one-half. B) increase, but not double. C) not change. D) double.
Which of these is an accurate statement of Newton's first law?
a. An object at rest tends to remain at rest. b. An object in motion tends to remain in motion. c. An object with no force acting along its direction of motion tends to move in a circle at constant speed. d. In the absence of an unbalanced force, the velocity of an object remains constant. e. In the absence of an unbalanced force, the speed of an object remains constant.
Compared with our Sun, most stars in the halo are
A) young, red, and dim and have fewer heavy elements. B) young, blue, and bright and have much more heavy element material. C) old, red, and dim and have fewer heavy elements. D) old, red, and dim and have much more heavy element material. E) old, red, and bright and have fewer heavy elements.
1-Bromobutane and 4-bromobutane are
a. the same compound. b. neither isomers nor the same compound. c. isomers.