2 years ago

PLEASE HURRY

Physics

1 answer:

Vikentia [17]2 years ago

8 0

Answer: B superconductors

Explanation:

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Answer:

$F = 0.3\ Hz$

Explanation:

Given

See attachment for the graph

Required

Determine the frequency

Frequency (F) is calculated as:

$F = \frac{1}{T}$

Where

T = Time to complete a period

From the attachment, the wave complete a cycle or period in 3 seconds..

So:

$F = \frac{1}{3s}$

$F = 0.333\ Hz$

$F = 0.3\ Hz$ --- Approximated

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Stells [14]

False, Carbon usually forms four covalent bonds.

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artcher [175]

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2) 72/10 = 7.2 years

3) 72/13 = 5.54 years

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A cylindrical rod of length L is connected across a fixed potential difference, creating a current I through the rod. What would

Inessa05 [86]

Answer:

The value of current through the rod becomes half

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As per Ohm's law we know that the current through a resistor is given as

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here we know that

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here we know that the length of the cylinder is L and area is A so the value of current through the rod is given as

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$\frac{i}{i'} = 2$

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cluponka [151]

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