Two children are riding on a merry-go-round. Child A is at a greater distance from the axis of rotation than child B. Which child has the larger tangential acceleration?
A)
Child A
B)
Child B
C)
They have the same zero centripetal acceleration.
D)
They have the same non-zero centripetal acceleration.
E)
There is not enough information given to answer the question.
A
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Moving electric charges are surrounded by
A. electric fields B. magnetic fields C. both of these answers D. neither of these answers
In an open universe, the angles of a triangle add up to
A) more than 180 degrees. B) less than 180 degrees. C) 180 degrees.
A double convex (convex-convex) thin lens has radii of curvature 46. cm, and is made of glass of index of refraction n = 1.60. What is the focal length?
A) 36. cm B) infinite C) 46. cm D) 18. cm E) 38 cm
You wish to construct a simple ac generator with a maximum output of 12 V when rotated at 60 Hz. A magnetic field of 0.050 T is available. #If the area of the rotating coil is 100 cm2, how many turns are needed?
What will be an ideal response?