The Great Red Spot on Jupiter is ________.
A. a largo tornado sweeping the planet from north to south
B. a large rising cloud of gas
C. a planetesimal impact site
D. a giant vortex that has persisted for over 300 years
Answer: D
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An airplane moves 140 m/s as it travels around a vertical circular loop which has a 1.0-km radius. What is the magnitude of the resultant force on the 70-kg pilot of this plane at the bottom of this loop?
A. 2.1 kN B. 1.4 kN C. 0.69 kN D. 1.5 kN E. 1.3 kN
Of the following photons, which has the lowest energy?
a. visible b. ultraviolet c. infrared d. microwave
A container is filled with fluid 1, and the apparent depth of the fluid is 9.00 cm. The container is next filled with fluid 2, and the apparent depth of this fluid is 6.86 cm. If the index of refraction of the first fluid is 1.37, what is the index of refraction of the second fluid?
a. 1.80 b. 2.41 c. 1.57 d. 1.20 e. More information is needed to find the value.
As an incompressible fluid in a pipe flows past a region where the pipe gets narrower:
a. the fluid flows faster. b. the fluid flows more slowly. c. the speed of the fluid remains the same. d. the number of gallons of fluid per second increases. e. the number of gallons of fluid per second remains the same.