What explanation does general relativity provide for gravity?

A) Gravity is the result of curved spacetime.
B) Gravity is directly proportional to the mass of the attracting body.
C) Gravity is inversely proportion to the radius of the body.
D) Gravity is the opposite of the electromagnetic force.
E) Gravity can affect only massive particles, not massless photons.


A

Physics & Space Science

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A. 390 V B. 330 V C. 270 V D. 220 V E. 190 V

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Which is the process that explains how life adapts itself to a changing environment?

a. biological evolution b. environmental duplication c. biological transformation d. natural selection e. genetic reproduction

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When a barrel of water in a rowboat in a swimming pool is poured overboard, the pool level

A) rises. B) falls. C) remains unchanged.

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Even though Titan has liquid methane on its surface, some internal heat, and plenty of carbon-containing compounds, it is not a suitable place for life because

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