I know student 2 is right but don't know how to explain it Three students are arguing about what happens when light travels from water into air. Their claims are in bold. Two of the claims are incorrect. Think about which claim you support and why.

Student 1: “When a light wave travels from water to air, it speeds up from 200,000,000 m/s in water to 299,700,000 m/s in air. That is a big increase in speed. There must be a change in frequency and wavelength for that to happen. If speed increases, then wavelength and frequency also increase.

Student 2: I disagree. The simulation and an article showed that only one of the variables changed, but i don't remember if it's frequency or wavelength that change. When speed increases, then only one of the variables change.

Student 3: I disagree with both of you. When light travels from water to air, it doesn't speed up. Where would it get the energy for that? The speed of light stays the same when travelling to different media, if the wavelength increases then the frequency decreases. It's the same reason that radio waves and x-rays travel in space at the same speed.

Use mathematical reasoning to support a claim. Credit will only be given to work done on paper. You may upload your work here or email it to your teacher.

An internally reversible refrigerator has a modified coefficient of performance accounting for realistic heat transfer processes of where qin is the refrigerator cooling rate, qout is the heat rejection rate, and is the power input. show that copm can be expressed in terms of the reservoir temperatures tc and th, the cold and hot thermal resistances rt,c and rt,h, and qin, as where rtot rt,c rt,h. also, show that the power input may be expressed as 1.39 a household refrigerator operates with cold- and hot-temperature reservoirs of tc 5 c and th 25 c, respectively. when new, the cold and hot side resistances are rc,n 0.05 k/w and rh,n 0.04 k/w, respectively. over time, dust accumulates on the refrigerator’s condenser coil, which is located behind the refrigerator, increasing the hot side resistance to rh,d 0.1 k/w. it is desired to have a refrigerator cooling rate of qin 750 w. using the results of problem 1.38, determine the modified coefficient of performance and the required power input w under (a) clean and (b) dusty coil conditions. internally reversible refrigerator qout qin w high-temperature reservoir low-temperature reservoir th th,i tc,i tc high-temperature side resistance low-temperature side resistance w qin th tc qinrtot tc qinrtot copm tc qinrtot th tc

What causes the formation of ocean currents?

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