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choli [55]
3 years ago
7

You are a scientist working on increasing the efficiency of appliances to waste less electricity. You are running experiments me

asuring the input, output, and waste energy from a new type of light source. Given the data below, determine the percentage of energy transformed into light.
25978.8 joules in, 14153.3 joules wasted, 11825.5 joules out
A. 45.5%
B. 54.5%
C. 11825.5%
D. 83.5%
Chemistry
1 answer:
bezimeni [28]3 years ago
5 0
Answer : Option A) 45.5%
 
Explanation : We use the formula of calculating energy efficiency which is as,

η (in %)= [P_{Out} / P_{in}] X 100 
where η is energy efficiency,
and P values are for energy out and in.

So plugging the given values, we get,

η (in %) = (11825.5 / 25978.8) X 100 = 45.5 %
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Nitrogen has 7 protons, 7 neutrons, and 7 electrons.

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1 year ago
Identify 5 factors of weather
cluponka [151]

Answer:

"The five factors are: the latitude zone, the elevation of the land, topography (landforms), ocean currents and winds."

Explanation:

5 0
3 years ago
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Which group of elements have some properties of metals and some properties of nonmetals?
aleksandr82 [10.1K]
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6 0
3 years ago
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storchak [24]

Answer:

1.5L

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From the question we have

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3 0
2 years ago
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Leni [432]
Hi there!


D is true

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good luck!
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3 years ago
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