3 years ago

What’s 5.1 cm in Newton’s?

Physics

1 answer:

faust18 [17]3 years ago

5 0

0.051 newton meter.

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Protons are positively charged and neutrons are neutral whereas electrons are negatively charged.

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Answer:

4.8mph

Explanation:

Speed= Distance/time

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The position of a particle as it moves along an y axis is given by y = (2.0cm)sin(πt/4), with t in second and y in centimeters.

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Part a)

At t = 0 the position of the object is given as

$x = 0$

At t = 2

$x = 2 sin(\pi/2) = 2cm$

so displacement of the object is given as

$d = 2 - 0 = 2cm$

so average speed is given as

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Part b)

instantaneous speed is given by

$v = \frac{dy}{dt}$

$v = 2cos(\pi t/4 ) * \frac{\pi}{4}$

now at t= 0

$v = \frac{\pi}{2} cm/s$

at t = 1

$v = 2 cos(\pi/4) * \frac{\pi}{4}$

$v = \frac{\pi}{2\sqrt2}$

at t = 2

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Part c)

Average acceleration is given as

$a_{avg} = \frac{v_f - v_i}{t}$

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Part d)

Now for instantaneous acceleration

As we know that

$a =- \omega^2 y$

at t = 0

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at t = 1

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now we have

$a = -\frac{\pi^2}{16}*\sqrt2$

At t = 2 we have

$y = 2 cm$

$a = -\frac{\pi^2}{16}*2$

$a = -\frac{\pi^2}{8}$

<em>so above is the instantaneous accelerations</em>

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True, because water balance is the balance between intake and output

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