A grandfather clock that is regulated by a pendulum is taken to the Moon, where the acceleration of gravity is less. Compared to an identical clock on Earth, the grandfather clock on the Moon will
A. run slow.
B. run fast.
C. keep time at the same rate.
Answer: A
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The geysers and hot springs of Yellowstone National Park result from
A) thin continental crust separating and creating a rift valley. B) plumes of hot mantle rising in a hot spot within a plate. C) plates that have slipped sideways relative to each other, creating a fault. D) a plate that has run up against an existing continental plate. E) a fault.
The Hawaiian Islands and the Emperor seamount chain were formed when the Pacific plate rode over a(n) ______________
Fill in the blank(s) with correct word
The center of gravity is a useful point at which to balance an object. For instance, a ruler can be balanced by placing its center on your finger. Is it possible for the center of gravity of an object to be located at a point where no material exists to balance the object?
1.no, never 2.only for very unsymmetrical objects 3.It is possible in theory, but no objects have been found for which this occurs. 4.Yes, it is possible.
How could the children in this photo best improve their balance with the help of two equal-mass weights?
a. Hold one weight in each hand with arms extended as shown in the photo. b. Attach a weight to each ankle. c. Place a weight in each of their left and right pockets in their trousers. d. Hold one weight in each hand with arms held down instead of extended. e. Hold one weight in each hand with one arm extended and one held down.