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I need help with chemistry!!!!!!!!!!?

by Guest45018  |  earlier

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14. Find the energy of a photon of light if the wavelength of the light wave is 6.88 x 10-7 m.

a. 2.89 x 10-19 J

b. 4.56 x 10-40 J

c. 3.46 x 1018 J

d. 7.56 x 10-20 J

15. When a neon atom is electrified, the electrons jump to higher orbits. One of the electrons falls from an outside orbit to an inside orbit giving off red light with a wavelength of 7.34 x 10-7 m. Calculate the frequency of the red light given off by the neon atom.

a. 4.54 x 10-3 1/s

b. 4.09 x 1014 1/s

c. 220 1/s

d. 2.45 x 10-15 1/s

16. An automobile has a wavelength that is not measurable by human standards. If the car has a mass of 4000 lbs (1.81 x 103 kg) and travels at 60 miles/hr (26.8 m/s), calculate the wavelength of the car.

a. 9.82 x 10-36 m

b. 2.76 x 10-39 m

c. 7.30 x 1037 m

d. 1.37 x 10-38 m

17. A local radio station can be tuned in by dialing your radio to a frequency of 101.5 MHz. Calculate the wavelength. (Hint: MHz means 1 x 106 Hz.)

a. 2.96 m

b. .378 m

c. 2.96 x 106 m

d. 2.96 x 103 m

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  1. this is called physics

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