3 years ago

Which of the following will most likely be a sustainable environment?

Physics

2 answers:

Andrei [34K]3 years ago

7 0

Answer:

I think A

Explanation:

rusak2 [61]3 years ago

7 0

C. , i had to do this before :) hope this helps

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Megan wants to see if mice that are fed food A or B grow at a faster rate. She measures the mass of the mice on day 1, then divi

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<span>No, there is no control group because each group is treated under test conditions.</span>

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A concert loudspeaker suspended high off the ground emits 28.0 W of sound power. A small microphone with a 0.700 cm2 area is 55.

grandymaker [24]

Explanation:

It is known that wave intensity is the power to area ratio.

Mathematically, I = $\frac{P}{A}$

As it is given that power is 28.0 W and area is $7 \times 10^{-5} m^{2}$ .

Therefore, sound intensity will be calculated as follows.

I = $\frac{P}{A}$

= $\frac{28.0 W}{4 \times 3.14 \times 7 \times 10^{-5} m^{2}}$

= $0.318 \times 10^{5} W/m^{2}$

or, = $3.18 \times 10^{4} W/m^{2}$

Thus, we can conclude that sound intensity at the position of the microphone is $3.18 \times 10^{4} W/m^{2}$ .

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2 years ago

The region where warm and cold air masses meet

Artemon [7]

The region where warm and cold air masses meet is called a front

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What happens when the data in an investigation does not support the origanal hypothesis

alexgriva [62]

Answer: The scientist gives up and starts an investigation on a new topic.

Explanation:

The data is altered so that it supports the original hypothesized. The data is then altered so that it supports the original hypothesis.

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2 years ago

What would be the final temperature if you mixed a liter of 40C water with 2 liters of 20C water?

riadik2000 [5.3K]

Answer:

I found

33 ∘ C

Explanation:

i hope this helps :)

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