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mylen [45]
3 years ago
15

When a wire is attached to the negative terminal of a battery, what happens?

Physics
2 answers:
Artist 52 [7]3 years ago
5 0
Answer:





Step by step explanation
Leokris [45]3 years ago
3 0

Answer: The current will flow from the negative to the positive terminal as fast as possible. This will wear out the battery quickly.

Explanation:

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An airplane wing is designed so that the speed of the air across the top of the wing is 255 m/s when the speed of the air below
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<h2>Answer:442758.96N</h2>

Explanation:

This problem is solved using Bernoulli's equation.

Let P be the pressure at a point.

Let p be the density fluid at a point.

Let v be the velocity of fluid at a point.

Bernoulli's equation states that P+\frac{1}{2}pv^{2}+pgh=constant for all points.

Lets apply the equation of a point just above the wing and to point just below the wing.

Let p_{up} be the pressure of a point just above the wing.

Let p_{do} be the pressure of a point just below the wing.

Since the aeroplane wing is flat,the heights of both the points are same.

\frac{1}{2}(1.29)(255)^{2}+p_{up}= \frac{1}{2}(1.29)(199)^{2}+p_{do}

So,p_{up}-p_{do}=\frac{1}{2}\times 1.29\times (25424)=16398.48Pa

Force is given by the product of pressure difference and area.

Given that area is 27ms^{2}.

So,lifting force is 16398.48\times 27=442758.96N

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3 years ago
The distance from earth to teh sun usb approxximately 93 million miles. a scientist would write that number as
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A scientist would write that number as 1.49 x 10⁸ kilometers .

(Or, if the scientist is in France or the UK, he might write it as  1.49 x 10⁸ kilometres .)

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Acceleration= change in velocity/time
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