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Yakvenalex [24]
3 years ago
5

What does a star color tell you about the amount of energy it emits?

Physics
2 answers:
Sonja [21]3 years ago
8 0
The brighter shows how much energy emits
Rus_ich [418]3 years ago
7 0
The whiter the color the more young it is and the more energy it emits
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An electromagnetic wave is transporting energy in the negative y direction. At one point and one instant the magnetic field is i
natali 33 [55]

Answer:. Option c

Explanation: the speed of an electromagnetic wave is simply the vector product of the magnetic field and the electric field.

The direction of the velocity is the direction of the electromagnetic wave.

The wave is already moving towards the negative y axis (-j) and the magnetic field is already pointing towards the positive x axis (i)

From cross product of unit vectors

i × j = k

i × k = - j

With the second identity, we can see that the electric field will be pointing towards the positive of the x axis (k).

Option c is validated

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Ik what it is hit me up for it
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Explanation:

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Eddi Din [679]

Answer: I think it’s D.

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