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Fittoniya [83]
3 years ago
14

Calculate the average of the following numbers 6g, 8g, 10g and 4g

Physics
1 answer:
kupik [55]3 years ago
3 0

Answer:

7g

Explanation:

To find the average, add all numbers, the divide by the amount of numbers there are. So

6 + 8+ 10 + 4 = 28

28 divided by 4 = 7

And just add g at the end... so 7g is your answer

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Determine the mass of fuel required for the expected energy consumption in the United States for the next 10 years:
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Answer:

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First, let's find the expected energy consumption in the US for the next 10 years.

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310,000,000*3.5*10^11 joules = 1.085*10^20 J

In 10 years the consumption is 10 times the consumption of a single year, then the expected energy consumption in the US for the next 10 years is:

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Now let's find the mass of fuel required.

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And a liter of petrol weights 0.75 kg

To find the number of liters of petrol that we need, we need to find the quotient between the expected energy consumption in the next 10 years and the energy of a single liter of petrol, this is:

N = (1.085*10^20 J)/(31,536,000 j) = 3.44*10^13

We will need  3.44*10^13 liters of petrol.

And the total mass of petrol will be:

M = 3.44*10^13*0.75 kg = 2.58*10^13 kg of fuel.

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A glass dropped on the floor is more likely to break if the floor is concrete
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The answer is B).

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