The space time diagram in figure R2.12 shows the world lines of various objects. Which object has the largest speed at time t = 1 s?
A. A
B. B
C. C
D. D
E. E
A. A
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How long does it take for a rotating object to speed up from 15.0 to 33.3 rad/s if it has an angular acceleration of 3.45 rad/s2?
A) 4.35 s B) 5.30 s C) 9.57 s D) 10.6 s E) 63.1 s
If a lake is about an eighth covered by water hyacinths when you first look at it, and completely covered 3 weeks later, what is the water hyacinth doubling time?
a. 0.25 week b. 0.5 week c. 1 week d. 2 weeks e. 3 weeks
The figure shows a ‘snapshot’ of four different waves in identical ropes stretched with the same force
The wave with the greatest speed is __________.
Which of the following systems cannot be analyzed as a visual binary?
A) Binary stars that are separately visible in a telescope B) Binary stars that are about 2 AU apart C) Binary star systems having orbital periods of hundreds or thousands of years D) Binary stars orbiting so close to each other that they are not visible as separate stars