The volcano Olympus Mons on Mars is
A) taller than Mt. Everest and as large as the state of Arizona
B) smaller than Mt. Everest but as large as North America
C) taller than Mt. Everest and but only as large as the Big Island of Hawaii
D) about the same height and size as Mt. St. Helens in Washington State, USA
A
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Power: A light bulb operating at a dc voltage of 120 V has a power rating of 60 W. How much current is flowing through this bulb?
A. 1.5 A B. 2.5 A C. 0.50 A D. 2.0 A E. 1.0 A
Suppose you drop a 10-pound weight and a 5-pound weight on the Moon, both from the same height at the same time. What will happen?
A) Both will hit the ground at the same time. B) The 10-pound weight will hit the ground before the 5-pound weight. C) The 5-pound weight will hit the ground before the 10-pound weight. D) Both weights will float freely because everything is weightless on the Moon.
How is the age of a rock determined?
A. by counting the number of circles just like the circles on the trunk of a tree B. by measuring the amount of calcium it contains C. by measuring the temperature of the rock D. by determining the ratio of argon to potassium
What is the Oort cloud?
A) It is the spherical distribution of the trillion or so comets thought to orbit the Sun at great distances. B) It is another name for the cloud of gas from which our solar system was born. C) It is a great cloud of gas that resides far beyond the orbit of Pluto. D) It is a giant storm in the atmosphere of Saturn.