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Art [367]
3 years ago
9

Use the data provided to calculate the gravitational potential energy of each cylinder mass. Round your answers to the nearest t

enth.
3 kg: kJ
6 kg: kJ
9 kg: kJ

Physics
2 answers:
pantera1 [17]3 years ago
7 0

Answer: 3kg: 14.7 6kg: 29.4 9kg: 44.1

Explanation: just did it on Edge

PIT_PIT [208]3 years ago
5 0

Answer:

Explanation:

3 kg 14.7

6kg 29.4

9kg 44.1

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A spring gun is made by compressing a spring in a tube and then latching the spring at
inn [45]

Answer:

a)v=13.2171\,m.s^{-1}

b)H=8.9605\,m

Explanation:

Given:

mass of bullet, m=4.97\times 10^{-3}\,kg

compression of the spring, \Delta x=0.0476\,m

force required for the given compression, F=9.12 \,N

(a)

We know

F=m.a

where:

a= acceleration

9.12=4.97\times 10^{-3}\times a

a\approx 1835\,m.s^{-2}\\

we have:

initial velocity,u=0\,m.s^{-1}

Using the eq. of motion:

v^2=u^2+2a.\Delta x

where:

v= final velocity after the separation of spring with the bullet.

v^2= 0^2+2\times 1835\times 0.0476

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(b)

Now, in vertical direction we take the above velocity as the initial velocity "u"

so,

u=13.2171\,m.s^{-1}

∵At maximum height the final velocity will be zero

v=0\,m.s^{-1}

Using the equation of motion:

v^2=u^2-2g.h

where:

h= height

g= acceleration due to gravity

0^2=13.2171^2-2\times 9.8\times h

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is the height from the release position of the spring.

So, the height from the latched position be:

H=h+\Delta x

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H=8.9605\,m

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