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Juli2301 [7.4K]
3 years ago
9

Which event is part of a convince part of a current in the air

Physics
2 answers:
pogonyaev3 years ago
7 0

Answer:

D

Explanation:

Cool air sinks because it's denser and warm rises because it's less dense.

This is the principle you have in your air conditioning.

As the air is cooled it keeps falling that's why it's necessary to tilt the vents of of an AC at 45° so that the cold air would be well circulated.

Effectus [21]3 years ago
4 0
The answer is B for sure !
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An old light bulb draws only 54.3 W, rather than its original 60.0 W, due to evaporative thinning of its filament. By what facto
Lemur [1.5K]

Answer:

The factor of the diameter is 0.95.

Explanation:

Given that,

Power of old light bulb = 54.3 W

Power = 60 W

We know that,

The resistance is inversely proportional to the diameter.

R\propto\dfrac{1}{D}

The power is inversely proportional to the resistance.

P\propto\dfrac{1}{R}

P\propto D^2

We need to calculate the factor of the diameter of the filament reduced

Using relation of power and diameter

\dfrac{P_{i}}{P_{f}}=\dfrac{D_{i}^2}{D_{f}^2}

Put the value into the formula

\dfrac{D_{i}^2}{D_{f}^2}=\dfrac{54.3}{60}

\dfrac{D_{i}}{D_{f}}=0.95

D_{i}=0.95 D_{f}

Hence, The factor of the diameter is 0.95.

7 0
3 years ago
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Communicating results allows scientists to learn from each other's results.
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in which kind of radioactive decay would the number of protons in the resulting nucleus be more than in the initial nucleus?
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Answer:

A related type of beta decay

Explanation:

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2 years ago
Please select the word from the list that best fits the definition
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The broadest level of organization would be the domain
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Convert the number from scientific into standard notation: 5.9 x 10-2
guapka [62]
Move the decimal point to:
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or to
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So, standard form is:
Two points to the left {Exponent of Ten is Negative (-2)}
0.059 ... (without the 10)
6 0
3 years ago
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