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2 years ago

Which best explains how thermal energy is transferred when someone holds a hand above a fire?

Physics

2 answers:

vodka [1.7K]2 years ago

8 0

It is being transferred by radiation because the hand is in the path of rising air

Artyom0805 [142]2 years ago

5 0

Heat rises therefore the heat from the fire rises up to your hand... i didnt have any answer choices to work with sorry

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Two long parallel wires are placed side-by-side on a horizontal table. if the wires carry current in opposite directions,

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$\vec F = I (\vec L \times \vec B)$

if currents go in opposite directions, wires repel

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2 years ago

You hold a ruler that has a charge on its tip 6 cm above a small piece of tissue paper to see if it can be picked up. The ruler

scZoUnD [109]

Answer:

q=1.4*10^{-9}C

Explanation:

Given data:

charge on ruler = -14μC

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To Know the minimum charge, equate electrostatic force to weight

we have F = W

so $\frac{KQq}{r^2} =mg$

putting all value in equation,

$=\frac{9*10^9*(14*10^{-6})*q}{0.06^2} = 5* 10^{-3}*9.8$

solving for q

$q =\frac{5* 10^{-3}*9.8 *0.06^2}{9*10^9*(14*10^{-6})}$

or q=1.4*10^{-9}C

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2 years ago

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Ivahew [28]

<h3>Given, </h3>

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Why would north america will not be able to view the eclipse

Flauer [41]

The North America will not be able to view the eclipse because of its location on the earth caused by the tilting of the earth.

<h3>Effect of tilting of the Earth</h3>

The tilt of the Earth is what causes seasons to occur. These are the seasons in relation to the Northern Hemisphere.

The tilting of the Earth causes the difference in the amount of sun reaching each region of the earth like in the North America continent.

Thus, the North America will not be able to view the eclipse because of its location on the earth caused by the tilting of the earth.

Learn more about eclipse here: brainly.com/question/8643

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1 year ago