The radius of planet Krow is twice that of Earth, yet the two planets have identical masses. Your weight on Krow, compared to your weight on Earth, is
A. quartered.
B. halved.
C. the same.
D. doubled.
E. quadrupled.
A. quartered, since the force is inversely proportional to the square of the radius.
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You slam on the brakes of your car in a panic, and skid a certain distance on a straight, level road. If you had been traveling twice as fast, what distance would the car have skidded, under identical conditions?
A) It would have skidded 4 times farther. B) It would have skidded 2 times farther. C) It would have skidded times farther. D) It would have skidded 1/ times farther. E) It would have skidded 1/2 as far.
In a large tank of liquid, the hydrostatic pressure at a given depth is a function of
a. depth. b. surface area. c. liquid density. d. Choices a and c are both valid.
Which of the following types of cloud is found at the highest altitudes?
What will be an ideal response?
Neutrons:
A) have double the mass of protons. B) are atomic particles with no charge. C) when equal in number form isotopes. D) exist independently and unattached to atoms.