Imagine that the metal head of a hammer is loose. In order to get the hammerhead tight again you should
A) drop the hammer on its side from some given height.
B) drop the hammer with the handle end down.
C) drop the hammer with the head end down.
D) It makes no difference how you drop the hammer, the head will be tightened.
E) It makes no difference how you drop the hammer, the head will not be tightened.
B
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Three gases, one consisting of monatomic molecules, one consisting of diatomic molecules, and one consisting of polyatomic molecules, are in thermal equilibrium with each other and remain in thermal equilibrium as the temperature is raised. All have the same number of molecules. The gases with the least and greatest change in internal energy are respectively:
A. polyatomic, monatomic B. monatomic, polyatomic C. diatomic, monatomic D. polyatomic, diatomic E. monatomic, diatomic
Saturn's largest satellite is _______________
Fill in the blank(s) with correct word
Which of the following does not have a major effect in shaping planetary surfaces?
A) impact cratering B) volcanism C) tectonics D) erosion E) magnetism
In order to understand star clusters, we need to be able to estimate their ages. What technique do scientists use for this?
A) radioisotope dating B) counting the planets that have formed around the largest stars C) finding the main-sequence turnoff point of the stars D) calculating orbital parameters using Kepler's Laws E) measuring its parallax