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Let's go polling. Use Google or your favorite search engine to search the Web for "Web polling software." Choose one of the sites that offer software that allows you to conduct your own online opinion polls. (At the time of writing, www.twiigs.com and www.micropoll.com were two options, but things change quickly on the Web.)
(a) Choose a site and give the name of the site that you are using.
(b) Briefly describe two attractive features that the software offers. (For example, you would like to list the answer choices in random order, so that the same choice is not always in the first position.)
(c) Despite these features in (b), all such polls share a fatal weakness. What is this?
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Start from the expression of the electric filed outside an infinite sheet of uniform surface charge density, E=sigma/2epsilon, derive the electric field
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You are standing on the inside of a merry-go-round, while your friend is standing on the outside edge. Who has a larger tangential velocity
Estimate the number of shakes (one motion of the magnet back and forth) necessary to produce enough energy for 5.0 minutes of operation.
We have studied diffraction from a single slit, where light is sent through a thin opening. how thick was this strand of hair
For either type of coefficient of friction, what is generally assumed about the dependence of the value of the coefficient on the area of contact between the two surfaces?
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