Which of the following areas have the most massive black holes (those with the highest masses)?

A. where a massive star has died
B. in spiral galaxy halos
C. in the outer halos of elliptical galaxies
D. in X-ray binary stars
E. in the centers of spiral galaxies


Ans: E. in the centers of spiral galaxies

Physics & Space Science

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Q1 has 50 electric field lines radiating outward and Q2 has 250 field lines converging inward. What is the ratio Q1/Q2?

a. 5 b. ?5 c. 1/5 d. ?1/5 e. 0

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Answer the following statement(s) true (T) or false (F)

1. The frequencies of the normal modes of a string that is free at both ends are the same as those of a string that is fixed at both ends

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All except one of the following require the application of a net force. Which one is the exception?

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