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asambeis [7]
3 years ago
10

It takes three seismograph stations to determine the epicenter of an earthquake. Each station can determine how far away the ear

thquake occurred, but an individual station cannot determine from which direction the earthquake occurred. The three stations use ______________ to determine the location of the epicenter. A) estimation B) triangulation C) interpolation D) extrapolation
Chemistry
1 answer:
olganol [36]3 years ago
8 0

Hi there!

The answer is B

Hope this helps you.

Good luck!

- weasuLL

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Night visin cameras are sensitive to energies around 2.21 x 10-19 J. What wavelength of electromagnetic radiation do they use?
defon

Answer:

8.99×10^-7m

Explanation:

The wavelength can be calculated using the expression below

E=hcλ

Where E= energy= 2.21 x 10^-19 J.

C= speed of light= 3x10^8 m/s

h= planks constant= 6.626 × 10^-34 m2 kg / s

E=hcλ

λ= E/(hc)

Substitute for the values

λ=( 2.21 x 10^-19 )/(6.626 × 10^-34 × 3x10^8 )

= 8.99×10^-7m

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