Shadows blocking part of the light from the star.
A quick warning though this only works on planets either close to the star or planets that are very large.
Also to ensure that the shadows are planets the shadows have to move or orbit around the star. IE The shadow moves
Answer:
the length of the Nichrome wire is <em>59.88 m</em>
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Explanation:
The resistance of a wire is determined by:
P = V² / R or R = V² / P
where
- V is the voltage
- R is the resistance
- P is the power
We also know that
R = PL / A
where
- A is the area and it is equal to πr²
- P = 3.20 × 10² W
Therefore, the length of the Nichrome wire is
L = RA / ρ
L = (V²/P)(πr²) / ρ
L = V²πr² / ρ P
L = (110 V)²(π)(7.1 × 10⁻⁴ m)² / (3.2 × 10² W)(100 × 10⁻⁸ Ω·m)
<em>L = 59.88 m</em>
It might be a or d not too sure though
