3 years ago

Which arrow best represents the path of an object with projectile motion?

Physics

1 answer:

bonufazy [111]3 years ago

6 0

Answer:

Explanation:

As should have been explained at the very start of the lesson, it states "Whatever goes up, must come down."

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2 years ago

Which of the following is a category of mechanical wave?

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The force required to stretch a Hooke’s-law spring varies from 0 N to 63.5 N as we stretch the spring by moving one end 5.31 cm

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Answer:

Force constant will be 1195.85 N/m

Work done will be 1.6859 J

Explanation:

We have given the force, F = 63.5 N

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Force is given , F = 63.5 N

We know that force is given by $F=kx$

So $63.5=k\times 0.0531$

k = 1195.85 N/m

Now we have to find the work done

We know that work done is given by

$W=\frac{1}{2}kx^2=\frac{1}{2}\times 1195.85\times 0.0531^2=1.6859J$

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2 years ago

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D. The number of electrons

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