Devry PHYS 320 Final Essay Questions Latest

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Devry PHYS 320 Final Essay Questions Latest

final essay questions

Physics Week 8 Final

1. 1.One hundred joules of heat energy are transferred to 20 g of mercury.By how much does the temperature of the mercury increase? How much heat is needed to raise the temperature of 20 g of water by the same amount? Explain and show all work.

2.A 2000 cm3 container holds 0.10 mol of helium gas at 300 °C. How much work must be done to compress the gas to 1000 cm3at constant pressure? How much work to compress the gas to 100 cm3at constant temperature?Explain and show all work.

3.A very thin oil film (n = 1.25) floats on water (n = 1.33). What is the thinnest film that produces a strong reflection for green light with a wavelength of 500 nm?Explain and show all work.

4.An underwater diver sees the sun 50° above horizontal. How high is the sun above the horizon to a fisherman in a boat directly above the diver? Explain and show all work.

1. 5.An electron in a uniform electric field increases its speed from 2.00´107m/s to 4.00´107 m/s over a distance of 1.20 cm. What is the electric field strength? Explain and show all work.

6.An electron travels with speed 1´107m/s between the two parallel plates.The electron with speed v travels to the right between two plates separated by 1.0 cm. The top plate is positively charged. The bottom plate is negatively charged.The plates are separated by 1.0 cm and are charged by a 200 V battery. What magnetic field strength and direction will allow the electron to pass between the plates without being deflected?Explain and show all work.

7.A 100-turn, 2.00-cm diameter coil is at rest in a horizontal plane. A uniform magnetic field 60°
away from vertical increases from 0.5 T to 1.50 T in 0.6 seconds. What is the induced emf in the coil? Explain and show all work.

8.What is the energy in eV of (a) a 100 MHz radio-frequency photon, (b) a visible light photon with a wavelength of 500 nm, and (c) an X-ray photon with a wavelength of 0.10 nm? Explain and show all work.

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Devry PHYS 320 Final Essay Questions Latest

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