3 years ago

Describe what happens to the bonds of a solid while it is being melted.

Physics

1 answer:

WITCHER [35]3 years ago

3 0

Hope this answer helps :)

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Consider a steel guitar string of initial length L=1.00 meter and cross-sectional area A=0.500 square millimeters. The Young's m

ira [324]

Answer:

$\Delta L=15\,mm$

Explanation:

Given:

length of a steel-string, $L=1m$

area of the string, $A=0.5\,mm^2$

Young's modulus of the steel, $Y=2\times 10^{11} Pa$

force of tension on the string, $F=1500\,N$

We have the relation for change in length:

$\Delta L=\frac{F.L}{A.Y}$

$\Delta L=\frac{1500\times 1000}{0.5\times 10^{-6}\times 2\times 10^{11}}$

$\Delta L=0.015m$

$\Delta L=15\,mm$

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A 1750kg bumpercar moving at 1.50m/s to the right collides elastically with a 1450kg car going to the left at 1.10m/s. The 1750k

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1984.08 kg that’s the answer

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3 years ago

What is the potential energy of a 1000 kg-ball that is on the ground?

Kazeer [188]

Answer:

Explanation:

PE=mgh

PE= 1000kgx9.8m/s^2x0m

PE = 0J

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3 years ago

Collision Lab

Sholpan [36]

Answer:

Ball 1 has a mass of 0.5 kilogram and an initial velocity of 1.00 meter/second. Ball 2 has a mass of 1.5 kg and an initial velocity of 0.00 meters/second.

Explanation:

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A body complete 400 j work in 5 second.what is its power

Romashka-Z-Leto [24]

Answer:

80 watts

Explanation:

power= energy / time

400/5 = 80

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3 years ago