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Neporo4naja [7]
3 years ago
11

Which two statements are true of electromagnetic waves?

Physics
1 answer:
Usimov [2.4K]3 years ago
3 0

Answer:

B and C

Explanation:

Because EMWs are varying magnetic and electric radiation traveling at 90° to each other propagating energy form one place to another through vibration of these magnetic and electric fields

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A playground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about
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Answer:

8050 J

Explanation:

Given:

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Or you can find the angular displacement and find the work done that way:

θ = θ₀ + ω₀ t + ½ αt²

θ = ½ (0.598 rad/s²) (15.0 s)²

θ = 67.3 rad

W = τθ

W = Frθ

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W = 8050 J

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