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nata0808 [166]
3 years ago
10

The use of sound waves helps scientists find out how deep parts of the ocean are. The scientists do this by sending a sound wave

to the floor of the ocean and recording the time it takes to return to a machine. What did the inventor of this machine need to know while developing the machine?
Physics
1 answer:
Scilla [17]3 years ago
4 0
Dredging is what the inventor of this machine need to know while developing the machine.
Hope this helps!
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I don't know why the answer is D , because I can't see the list of choices.


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The current in the second picture is 4.0 Amps.


If the resistors are identical, then the effective resistance of

two resistors in parallel is 1/2 the resistance of each one.


The resistance in the second picture is 1/2 the resistance

in the first picture.


Current = (voltage) / (resistance)


Cutting the resistance in half causes the current to double.


If the current was 2.0 Amps in the first picture, it's 4.0 Amps

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6 0
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Physics. I need help​
dezoksy [38]
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3 years ago
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lbvjy [14]

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lapo4ka [179]
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3 years ago
A nerve signal travels 150 meters per second. Determine the number of kilometers that the nerve signal will travel in the same t
joja [24]

Explanation:

It is given that,

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We know that,

1 kilometer = 1000 meter

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150\ m/s=540\ km/h

So, the nerve signal will travel at the rate of 540 km/h. Hence, this is the required solution.

6 0
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