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2 years ago

Can i get the answer quickly plz

Physics

1 answer:

max2010maxim [7]2 years ago

5 0

Sure you can..... ....................

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PLEASE HELP ME WHATS THE ASNWRR

stealth61 [152]

Answer:

think its b i dunno

Explanation:

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2 years ago

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Two objects must be in contact for them to exert a force on each other. True or False

nevsk [136]

Answer:

False

Explanation:

This proposition is false because by example the sun exerts a force over the earth and them are not in contact

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2 years ago

What is velocity? why is it important?

Setler [38]

Answer:

Velocity is the rate at which the position changes

Velocity is the rate at which the position changesWhy do we need

Velocity is the rate at which the position changesWhy do we needVectors make it convenient to handle quantities going in different directions.. 

Explanation:

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2 years ago

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Should genetic genealogy be used to solve crimes ? Yes or no and why?

zheka24 [161]

Answer:

yes

Explanation:

because it will help find who did the crime and it can also open jobs and opportunities for the people who likes sicnenae

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2 years ago

. If she

I am Lyosha [343]

Answer:

9 meters

Explanation:

Given:

Mass of Avi is, $m=40\ kg$

Spring constant is, $k=176,400\ N/m$

Compression in the spring is, $x=20\ cm=0.20\ m$

Let the maximum height reached be 'h' m.

Now, as the spring is compressed, there is elastic potential energy stored in the spring. This elastic potential energy is transferred to Avi in the form of gravitational potential energy.

So, by law of conservation of energy, decrease in elastic potential energy is equal to increase in gravitational potential energy.

Decrease in elastic potential energy is given as:

$EPE=\frac{1}{2}kx^2\\EPE=\frac{1}{2}\times 176400\times (0.20)^2\\EPE=88200\times 0.04=3528\ J$

Now, increase in gravitational potential energy is given as:

$GPE=mgh=40\times 9.8\times h=392h$

Now, increase in gravitational potential energy is equal decrease in elastic potential energy. Therefore,

$392h=3528\\\\h=\frac{3528}{392}\\\\h=9\ m$

Therefore, Avi will reach a maximum height of 9 meters.

6 0

3 years ago