2 years ago

Positively charged ions are surrounded by freely moving electrons in

Physics

1 answer:

ASHA 777 [7]2 years ago

3 0

I believe the answer would be valence shells

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2 years ago

A process generates 250 watts of useful energy and 600 watts of waste energy. WhT is the efficiency of the process?

Cloud [144]

The efficiency of the process is 42%

From the question given above, the following data were obtained:

Useful energy = 250 watt

Wasteful energy = 600 watt

<h3>Efficiency =? </h3>

The efficiency of the process can be obtained as illustrated below:

$efficiency \: = \frac{useful \: energy}{wasteful \: energy} \times 100 \\ \\ efficiency \: = \frac{250}{600} \times 100 \\$

<h3>Efficiency = 42%</h3>

Therefore, the efficiency of the process is 42%

Learn more: brainly.com/question/2300041

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2 years ago

A car traveling at 23m/s starts to decelerate steadily. It comes to a complete stop in 7 seconds. What is the acceleration?

Lena [83]

The car has an initial velocity $v_0$ of 23 m/s and a final velocity $v$ of 0 m/s. Recall that for constant acceleration,

$v=v_0+at$

The car stops in 7 s, so the acceleration is

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$\implies a\approx-3.29\,\dfrac{\mathrm m}{\mathrm s^2}$

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3 years ago

Sometimes in the winter, ice crystals grow directly from the moisture in the air. As the water changes from a gas to a solid, th

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Answer: B. slow down as they lose energy

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2 years ago

What determines magnetism?

adelina 88 [10]

The magnetic form of a substance can be determined<span> by examining its electron configuration: if it shows unpaired electrons, then the substance is paramagnetic; if all electrons are paired, the substance is diamagnetic.</span>

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3 years ago