Which of the following correctly lists our "cosmic address" from small to large?

A. Earth, solar system, Milky Way Galaxy, Local Group, Local Supercluster, universe;
B. Earth, solar system, Local Group, Local Supercluster, Milky Way Galaxy, universe;
C. Earth, Milky Way Galaxy, solar system, Local Group, Local Supercluster, universe.


Ans: A. Earth, solar system, Milky Way Galaxy, Local Group, Local Supercluster, universe;

Physics & Space Science

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Block A of mass 5.0 kg and block X are attached to a rope which passes over a pulley, as shown in the figure. An 80-N force P is applied horizontally to block A, keeping it in contact with a rough vertical face

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How do the size and mass of Jupiter's core compare to the size and mass of Earth?

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To decrease the intensity of the sound you are hearing from your speaker system by a factor of 36, you can

a. reduce the amplitude by a factor of 12 and increase your distance from the speaker by a factor of 3. b. reduce the amplitude by a factor of 4 and increase your distance from the speaker by a factor of 3. c. reduce the amplitude by a factor of 2 and increase your distance from the speaker by a factor of 3. d. reduce the amplitude by a factor of 3 and increase your distance from the speaker by a factor of 4. e. reduce the amplitude by a factor of 3 and increase your distance from the speaker by a factor of 12.

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When ultraviolet light reflects from a violet surface, we see

A. red. B. black. C. violet. D. white.

Physics & Space Science