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Serjik [45]
3 years ago
12

The pupil of your eye

Physics
1 answer:
Sav [38]3 years ago
3 0

Answer:

What is the question?

Explanation:

If you tell me the question I can help.

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Which part of the ear sends a message to the brain that is recognized as sound?
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The auditory nerve carries an electrical signal to the brain, which turns it into a sound that we recognize and understand.
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How to tell if something is an electrolyte
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Answer: If it has ions, it is an electrolyte

Explanation:

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Figure 1 shows the motion of three balls. The curved paths followed by balls B and Care examples of
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3 years ago
Pls help i will give u brianliest!
Fofino [41]

Answer:

Explanation:

neautrons and protons

3 0
3 years ago
You drop a ball from a height of 2.0 m, and it bounces back to a height of 1.5 m. (a) what fraction of its initial energy is los
Scilla [17]

a) At a position of 2.0m, the Initial energy is all made up of the potential energy=m*g*hi<span>
and meanwhile at 1.5 all its energy is also potential energy=m*g*hf 

The percentage of energy remaining is E=m*g*hi/m*g*hf x 100 

and since mass and gravity are constant so it leaves us with just E=hi/hf 
which 1.5/2.0 x100= 75% so we see that we lost 25% of the energy or 0.25 in fraction 

b) Here use the equation vf^2=vi^2+2gd 

<span>where g is gravity, vf is the final velocity and vi is the initial velocity while d is the distance travelled

so in here we are looking for the vi so let us isolate that variable 
we know that at maximum height or peak, the velocity is 0 so vf is 0 

therefore,</span></span>

vi =sqrt(-2gd) <span>
vi =sqrt(-2x-9.81x1.5) </span>
<span>vi =5.4 m/s

<span>c) The energy was converted to heat due to friction with the air and the ground.</span></span>

6 0
3 years ago
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