3 years ago

What are two advantages of using renewable resources?

1 answer:

3 0

One advantage is that whatever resource it is, it will never run out and you wont have to worry about not having it. A second is that there is going to be enough for everyone to use however much they want without there having to be a limit on how much you use.

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A Ping-Pong ball has a mass of 2.3 g and a terminal speed of 9.3 m/s. The drag force is of the form bv2 What is the value of b?

Fed [463]

Answer:

The value is $b = 0.00026 \ kg / m$

Explanation:

From the question we are told that

The mass of the Ping-Pong is $m = 2.3 \ g = 0.0023 \ kg$

The terminal speed is $v = 9.3 \ m/s$

The drag force is $bv^2$

Generally the resultant force on the Ping- Pong is mathematically represented as

$F = mg - bv^2$

when terminal velocity is attained , the resultant force is zero so

$0 = mg - bv^2$

=> $b = \frac{m * g}{v^2}$

=> $b = \frac{0.0023 * 9.8}{ 9.3 ^2}$

=> $b = 0.00026 \ kg / m$

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Describe the process that early periodic table organizers used to try and put elements into some sort of order

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Answer: Mendeleev arranged the elements in his periodic table in <em>order of increasing atomic mass.</em> In the modern periodic table, elements are arranged <em>in order of increasing atomic number</em>

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In order for a wave to occur, there must be a ______________ in the medium.

natta225 [31]

I believe the answer is “amplitude”.

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4 years ago

The kinetic molecular theory of gases predicts pressure to increase as the temperature of a gas increases because

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It’s magic my friend enjoy

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A student stands with both feet on some scales in order to measure his weight.

Neko [114]

Answer:

500 N

Explanation:

Because even if he lift one foot his weight will be same as the pressure applied on the scale will be the same and will not change it is not that the scale measures each foot separately

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