A CD makes one complete revolution every tenth of a second. The angular velocity of point 4 is:
A. the same as for pt 1.
B. twice that of pt 2.
C. half that of pt 2.
D. 1/4 that of pt 1.
E. four times that of pt 1.
A. the same as for pt 1.
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A galaxy that was once a quasar is likely to:
A) have burned all its fuel by now and be dark. B) now be a dwarf irregular. C) have a black hole at its nucleus. D) still be a quasar. E) be less than 5 billion years old.
A solar eclipse occurs only when the Moon is new
Indicate whether the statement is true or false
What is the maximum number of 100-W lightbulbs you can connect in parallel in a 120-V home circuit without tripping the 20-A circuit breaker?
What will be an ideal response?
Accretion occurred sooner in the inner part of the solar system than it did in the outer regions
Indicate whether the statement is true or false