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tresset_1 [31]
4 years ago
4

A system proposed by the U.S. Navy for underwater submarine communication, called ELF (for extremely low frequency, operates wit

h a frequency of 76 Hz. What is the wavelength of this radiation in meters? In miles? (I mile=1.61 km) What is the energy in joules of the frequency?
Chemistry
1 answer:
Akimi4 [234]4 years ago
4 0

Explanation:

Frequency = 76 Hz

Wavelength =?

The parameters are related by;

FREQUENCY OF OSCILLATION x WAVELENGTH = SPEED OF LIGHT

Wavelength = Speed of light / Frequency

Wavelength = 299,792,458 / 76

Wavelength = 3944637.61m

Wavelength = 3944.63761 km

Wavelength = 2450.09 miles (Upon conversion to miles by division by 1.61)

Energy = ?

E = h · f

where h = planks constant

Energy = 6.626 * 10^-34 * 76

Energy = 503.576 * 10^-34

Energy = 5.03576 * 10^-32 J

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4 years ago
How many moles are in 68 grams of copper (ll) hydroxide, Cu(OH)2
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4 years ago
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A 12.2-g sample of x reacts with a sample of y to form 78.9g of xy. what is the mass of y that reacted?
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