A CD has a diameter of 12.0 cm. If the CD is rotating at a constant angular velocity of 20.0 radians per seconds, then the period of the rotational motion is
A. 0.143 s.
B. 0.224 s.
C. 0.314 s.
D. 0.421 s.
E. 0.558 s.
C. 0.314 s.
Physics & Space Science
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What is Wein’s displacement law?
What will be an ideal response?
Physics & Space Science
Two point charges of magnitudes + 8.00 ?C, and + 10.0 ?C are placed along the x-axis at x = 0 cm and x = 100 cm, respectively
Where must a third charge be placed along the x-axis so that it does not experience any net force because of the other two charges? A) 4.72 cm B) 47.2 cm C) 50 cm D) 9.12 cm E) 91.2 cm
Physics & Space Science
The force required to move a 90.0 kg object in a 85.0 m circle at a constant speed of 8.10 m/s is
a. 0.0 N b. 69.5 N c. 0.77 N d. 8.58 N
Physics & Space Science
The quantity volt is equivalent to which of the following?
a. J/C c. J×C b. C/W d. J×m
Physics & Space Science