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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?
A test charge of +2*10^-7 C is located 5cm to the right of a charge +1*10^-6 C and 10 cm to the left of a charge -1*10^-6 C. The three charges lie on a straight line
An apparatus similar to the one used in the oscillation part of this experiment. What is the spring constant of this spring? What is the uncertainty in the spring constant found above?
a system is acted on by its surroundings in a way that it receives 50 j of heat while simultaneously doing 20 j of
a 2.88 kg block is pushed 1.62 m up a vertical wall with constant speed by a constant force of magnitude f applied at
An applied force varies with position according to F=K1x^n - K2, where n=3, K1=8.4 N/m^3 and K2=46 N. Find how much work is done by this force on an object
A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 51.8° and 43.2°, respectively
A tuning fork of unknown frequency makes 5 beats per second with a standard fork of frequency 377 Hz. The beat frequency decreases when a small piece of wax is put on a prong of the first fork. What is the frequency of this fork?
The electric potential at x = 5.0 m is 190 V, and The electric potential at x = 3.0 m is 120 V. What is the electric field in this region, assuming it's constant?
a force of magnitude 7.50 pushes three boxes with masses m1 1.30 kg m2 3.20kg and m3 4.90 kg find the magnitude of the
a cube is located with one corner at the origin of an x y z coordinate system. one of the cubes faces lies in the x y
A ball is dropped from a hot air balloon that is accelerating upward at 10 ft/sec2. What is the acceleration of the ball upon its release
a 0.400kg ice puck moving east with a speed of 6.50ms has a head-on collision with a 0.700kg puck initially at
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