3 years ago

what is the mechanical advantage of a machine that uses an input force of 20 newtons to achieve an output force of 60 newtons

Physics

1 answer:

inn [45]3 years ago

4 0

The answer to your question will be 3.

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Genetic material<span>, also </span>known<span> as deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA)</span>

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3 years ago

The sound intensity a distance d1 = 15.0 m from a chain saw is 0.260 W/m2. What is the sound intensity a distance d2 = 27.0 m fr

bagirrra123 [75]

Answer:

0.08024 W/m²

Explanation:

P = Power

$d_1$ = Distance = 15 m

$I_1$ = Intensity at 15 m = 0.26 W/m²

$d_2$ = Distance = 27 m

$I_1$ = Intensity at 27 m

Sound intensity is given by

$I=\frac{P}{4\pi d^2}$

$\\\Rightarrow I\propto \frac{1}{d^2}$

So, we have the relation

$\frac{I_1}{I_2}=\frac{d_2^2}{d_1^2}\\\Rightarrow I_2=\frac{d_1^2\times I_1}{d_2^2}\\\Rightarrow I_2=\frac{15^2\times 0.26}{27^2}\\\Rightarrow I_2=0.08024\ W/m^2$

The sound intensity at the given distance is 0.08024 W/m²

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3 years ago

1. Mary spends a lot of time with her crowd, or peer group. She uses their language and adopts the

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1.) D.
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3 years ago

If force remains the same, and the mass of an object increases, what happens to the acceleration?

baherus [9]

Answer:

Decreases

Explanation:

Force= mass * acceleration

If the mass increases but force stays the same then the acceleration would have to decrease to maintain the same force

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3 years ago

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