Physics
NULL
Medium
Question
The angular speed for daily rotation of the earth in rad S-1 is______________?
A
7.3 x 10 radians/second
B
7.3 x 5 radians/second
C
3.7 x 10 7.3 x 5 radians/second
D
7.3 x 10-5 radians/second
✓ Official correct answer
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A
7.3 x 10 radians/second
No member explanations yet for this option.
B
7.3 x 5 radians/second
No member explanations yet for this option.
C
3.7 x 10 7.3 x 5 radians/second
No member explanations yet for this option.
D
7.3 x 10-5 radians/second
No member explanations yet for this option.
Explanation
Earth's angular speed for its daily rotation is w = 2*pi/T, with T = 86400 s (24 hours), giving w = 7.3 x 10^-5 rad/s.
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