The figure below represents a string which has a heavy section and a light section. The mass per unit length of the heavy section is 16 times as large as the mass per unit length of the light section. When the string is under tension, the speed of a pulse traveling in the heavy section is ____ times the speed of that same pulse traveling in the light section.
A.
B.
C.
D.
E.
Answer: B
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Parallel-Plate Capacitor: The plates of a parallel-plate capacitor are maintained with constant potential by a battery as they are pulled apart. During this process, the amount of charge on the plates
A. must increase. B. must decrease. C. must remain constant. D. could either increase or decrease. There is no way to tell from the information given.
Planning the website structure before you begin creating its pages allows you to organize pages by level of detail.
Answer the following statement true (T) or false (F)
Harry places a new air conditioner in the middle of his hot room, which when operating
A) cools the room. B) further warms the room. C) neither of these
Coulomb's Law: Four point charges of equal magnitudes but with varying signs are arranged on three of the corners and at the center of the square of side d as shown in the figure. Which one of the arrows shown represents the net force acting on the center charge?
A. A B. B C. C D. D