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Question
According to Einstein, gravity is not the force exerted by one object on another, but rather theA) effect we witness when a large mass causes a curvature in the shape of spacetime.
B) force of attraction that exists between two objects.
C) effects of the graviton particle.
D) curvature of space caused by objects reaching the speed of light.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Heat energy is measured in units of
A) degrees.
B) joules.
C) calories.
D) both joules and calories.
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When the temperature of a fixed volume of air initially at 0 C is lowered by 1 degree, its pressure
A) decreases by 1/273.
B) decreases by 100/273.
C) increases by 1/273.
D) increases by 100/273.
Q:
Which of these is the smallest?
A) 1 Celsius degree
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Distinguish between the concepts of thermal energy, temperature, and heat.
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B) layer of water slightly below the surface.
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Water at 4C will expand when it is slightly
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B) warmed.
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If water at 0C slightly increases in temperature, the water
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If water at 20C slightly increases in temperature, the water
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A kg of 40C water and a kg of 20C water, after being mixed, have a temperature of 30C. However, the final temperature of a 1-kg iron block at 40C placed into 1 kg of water at 20C is
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The moderate temperatures of islands throughout the world has mainly to do with water's
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B) becomes less ordered.
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When work is done by a system and heat is subtracted, the temperature of the system
A) increases.
B) decreases.
C) remains unchanged.
Q:
Which law of thermodynamics addresses the direction of heat flow?
A) First law
B) Second law
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D) all of the above
Q:
Which law of thermodynamics states that no system can reach absolute zero?
A) First law
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Q:
At some point between Earth and the Moon, the forces due to gravity on a space traveler would be the same when this point is
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Q:
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A) less the gravitational force between them.
B) more the gravitational force between them.
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B) half as much.
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If Earth's mass somehow decreased with no change in its radius, your weight would
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B) increase.
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Newton discovered
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From Earth, one satellite appears to overtake another. The faster satellite that is seen to overtake the other is
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E) none of the above