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gayaneshka [121]
3 years ago
15

I need help with question two

Physics
1 answer:
zaharov [31]3 years ago
6 0
I can't see numbers here, so here are all the answers:
1) the frequency is c/λ = 3e8/556e-9 = 5.39e14Hz
2) light travels at <span>299,792,458 m/s.  So in nanoseconds it's 0.299792458m.  This is about 1/3 of a meter which is about one foot.
3) length is L = ct = (</span>299,792,458 m/s)(6e-15) = 1.799e-6m or 1.799μm

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Why is Einstein's description of gravity called a theory, while Newton's is a law?
Ludmilka [50]
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4 0
3 years ago
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A COPPER WIRE OF LENGTH 4M AND AREA OF CROSS-SECTION 1.2CM^2 IS STRECHED WITH A FORCE 4.8×10^3 N . IF YOUNGS MODULAS FOR COPPER
VARVARA [1.3K]

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= 4 x 10⁷ N /m²

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= 3.3 x 10^-4

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mark ‼️ it brainliest if it helps you ❤️

6 0
3 years ago
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3 years ago
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