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hichkok12 [17]
3 years ago
14

Astar is 10 light years away from the earth. Suppose it brightens up suddenly today, after how long can we see this change?

Physics
1 answer:
Blababa [14]3 years ago
7 0

The phrase "light year" is a <u><em>distance</em></u> ... it's the distance that light travels through vacuum in one year.

When you look at an object located 1 light year away from you, you see it as it was 1 year ago.

If a star located 10 light years away from us suddenly brightens, or dims, or explodes, we see the event <em>10 years later.</em>

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Help with 1 2 and 3 please
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2. I = \frac{q}{t} Δq over Δt technically

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3.  So we know that the end resistances will be equal so:

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6 0
3 years ago
What must the charge (sign and magnitude) of a 3.45 g particle be for it to remain stationary when placed in a downward-directed
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    Hence the charge must be equal to   5.74 ×10⁻⁵.

   Learn more about charges here:

          brainly.com/question/26092261

                    # SPJ4

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