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lina2011 [118]
3 years ago
10

A homeowner is thinking about replacing his filament bulbs with LED bulbs.

Physics
2 answers:
11Alexandr11 [23.1K]3 years ago
8 0
Because it takes less energy and the light output is the same
puteri [66]3 years ago
3 0

Answer:

because it would reduce the use of more electricity for same light output

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What’s 3 times 10 to the 8th power divided by 2.45 times 10 to the 9th power
Virty [35]

0.12244898 is the value obtained when solving the given.

<u>Explanation:</u>

Given:

3 times 10 to the 8th power can be expressed in equation format as 3 \times 10^{8} (3 times symbolizes ‘multiplication’ then it is to the tenth power of 8)

2.45 times 10 to the 9th power can be expressed in equation format as 2.45 \times 10^{9} (2.45 times symbolizes ‘multiplication’, then it is to the tenth power of 9)

Asked to find the solution when dividing the above,

                 \frac{3 \times 10^{8}}{2.45 \times 10^{9}}=\frac{3}{2.45} \times 10^{8-9}

When the tenth power of any value goes from denominator to numerator and vice-versa, presents in opposite sign to that it possess (like when ‘10^{9} ' goes to numerator changed as ' 10^{-9} ').

Now by solving the above equation, we get

                \frac{3}{2.45} \times 10^{8-9}=1.22 \times 10^{-1}=\frac{1.22}{10}=0.12244898

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3 years ago
Which diseases are most likely to be treated with antibiotics?
Vitek1552 [10]

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c) those caused by parasites

4 0
3 years ago
Kinetic and potential; what type of energy is each of the points
miskamm [114]

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1 potential

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3 kenitic

4 potential

5 kenitic

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3 years ago
A kangaroo jumps to a vertical height of 2.8 m. How long was it in the air before returning to earth
BaLLatris [955]
The answer would be 2.8m height on earth takes 
2.8=1/2*9.8*t^2 => <span>s = ut +1/2at^2 </span>
8 0
3 years ago
Light travels 186 000 miles per second.how many miles dose light travel in one year
Troyanec [42]

       (186,000 mi/sec) x (3,600 sec/hr) x (24 hr/da) x (365 da/yr)

  =   (186,000 x 3,600 x 24 x 365)  mi/yr

  =      5,865,696,000,000  miles per year  (rounded to the nearest million miles)
8 0
3 years ago
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