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stiv31 [10]
3 years ago
7

Are we likely to run out of gold in the near future ?

Chemistry
1 answer:
sweet [91]3 years ago
5 0
Earth isn’t likely going to be running out of gold for around 50-100 years
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1. c.

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3 years ago
13. What is the frequency of a wave that has a wavelength of 2.73 x 10-7m?​
ella [17]

Answer:

f = 1.09 × 10¹⁵ Hz

Explanation:

Given data:

Frequency of wave = ?

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Solution:

Formula:

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speed of light = 3× 10⁸ m/s

by putting values,

3× 10⁸ m/s = f × 2.73 ×10⁻⁷ m

f = 3× 10⁸ m/s  / 2.73 ×10⁻⁷ m

f = 1.09 × 10¹⁵s⁻¹

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f = 1.09 × 10¹⁵ Hz

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Explanation:

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2 years ago
Where is DNA found in your body?
Dennis_Churaev [7]

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