Suppose the thickness of an oil film on water, physics assignment help

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10. Suppose the thickness of an oil film on water is just the right thickness for canceling red light. What color will your eye see? Explain using 3 – 4 complete sentences. 11. A hard-rubber or plastic comb rubbed against wool can often be shown to have a static charge. Why does a metal comb not readily show a static charge when rubbed against wool? Use 3 – 4 complete sentences in your answer. 12. Two electrically-charges spheres are suspended from insulated threads a certain distance from each other. There is a certain amount of electrostatic force between them. Describe specifically (not just increase or decrease) what happens to this force in each of the scenarios below (1 pt. ea.): a. The charge on one sphere is reduced by half b. The charge on both spheres is doubled c. The distance between the spheres is increased by a factor of three d. The distance between the sphere is decreased to one-fourth e. The charge of each sphere is doubled and the distance between them is doubled 13. An ammeter indicates the current for a toaster is 5.0 amps when the toaster is connected to 120-V circuit. How much energy is given off by the toaster in 55.0seconds? Show all calculations leading to an answer. 15. Using 3 – 4 sentences, explain, in your own words, two ways you could cause an electrical current using only a wire and a horseshoe magnet. 16. Using 3 - 4 complete sentences, explain the role of both types of transformers in getting electric energy from an electric power plant (coal-fired, natural gas or nuclear) to our homes. 17. In what way does the photoelectric effect support the particle theory of light? Use 3 – 4 complete sentences in your own words to explain. 18. The isotope, Carbon-14 emits beta radiation and has a half live of 5730 years. How long will it take for the amount of radiation this gives off to drop by a factor of 4? 19. The total U.S. consumption of electricity in a particular year was 5.0 x 1012 kilowatt-hours. What is the mass equivalence of this amount of energy? Show all calculations leading to an answer. 20. When uranium-238 emits an alpha particle, what isotope is created? Show the nuclear equation for this reaction.
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Physics Help Questions
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Suppose the thickness of an oil film on water is just the
right thickness for canceling red light. What color will your
eye see? Explain using 3 − 4 complete sentences.

The colors are and act like the lighted fragments that we are able
to see when light’s being bent. On one thing, the oil can really be
very thick until a point where it’s impossible to have the red light
go through correctly. So, in this case, you (as the viewer) would
and may only be reasonable able to see all possible colors but red
thanks to the cancellation of the red light.

A hard-rubber or plastic comb rubbed against wool can
often be shown to have a static charge. Why does a metal
comb not readily show a static charge when rubbed against
wool? Use 3 − 4 complete sentences in your answer.

Metals are considered to be really great as conductors. Thanks to
its metal surfacing, there would be massive amount of free
electrons along with any chargeable imbalances. Those imbalances
can possibly occur at the surface, which will be spreading onto the
metal surfacing, which also decreases it’...