When Mary is 3.00 m from the center of a merry-go-round, her tangential speed is a constant 1.88 m/s. (a) What is her angular speed in rad/s? (b) What is the magnitude of her linear acceleration?
What will be an ideal response?
Question 2
Three identical 3.0-C charges are placed at the vertices of an equilateral triangle that measures 30 cm on a side. What is the magnitude of the electrostatic force on any one of the charges? (k = 1/40 = 9.0 109 N m2/C2 )
A) 1.6 N
B) 1.8 N
C) 2.0 N
D) 2.2 N
E) 2.4 N
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Off-Center Disk
Red blood cells with normal hemoglobin, like the three similar ones, are smooth and round
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