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3 years ago

The star Betelgeuse is about 600 light-years away. If it explodes tonight,

Physics

2 answers:

lana [24]3 years ago

6 0

The star Betelgeuse is about 600 light-years away.

If it explodes tonight, we won't know about it until 600 years from now. <em>(C)</em>

(Maybe it already has. If it exploded any time after the year 1419, we have no way to know it yet.)

Thepotemich [5.8K]3 years ago

4 0

Answer:

Explanation:

It has to travel 600 light years before we would be able to observe the explosion.

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2 years ago

A transformer consists of 290 primary windings and 824 secondary windings. Part A: If the potential difference across the primar

jasenka [17]

Answer:

Part 1) Voltage in secondary windings is 61.08 Volts

Part 2) Current in secondary windings is 0.53 Amperes

Explanation:

The potential developed in the primary and secondary winding of a transformer are related as

$\frac{N_{p}}{N_{s}}=\frac{V_{p}}{V_{s}}$

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Ns no of turns in secondary coil

Vp Voltage of turns in primary coil

Vs Voltage of turns in secondary coil

Applying values in the formula we get

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2 years ago

How much mass energy could be obtained from the complete conversion of a 235 g hamburger?

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E = mc²
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3 years ago