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3 years ago

What will happen if we heat metal for long time

Physics

2 answers:

Ber [7]3 years ago

8 0

Answer:

it would expand. Length, surface area and volume will increase with temperature. The scientific term for this is thermal expansion. Thermal expansion occurs because heat increases the vibrations of the atoms in the metal.

Explanation:

viva [34]3 years ago

6 0

Answer:

the metal will melt

Explanation:

from solid to liquid

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3 years ago

A cat dozes on a stationary merry-go-round, at a radius of 4.4 m from the center of the ride. The operator turns on the ride and

monitta

Answer:

The coefficient of static friction is 0.29

Explanation:

Given that,

Radius of the merry-go-round, r = 4.4 m

The operator turns on the ride and brings it up to its proper turning rate of one complete rotation every 7.7 s.

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$\mu mg=\dfrac{mv^2}{r}$

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4 0

3 years ago

Cindy exerts a force of 40 newtons and moves a chair 6 meters. Her brother Andy pushes a different chair for 6 meters while exer

sesenic [268]

Work formula:
W = F * d
F 1 = 40 N, d 1 = 6 m;
F 2 = 30 N; d 2 = 6 m.
W ( Cindy ) = 40 * 6 = 240 Nm
W ( Andy ) = 30 * 6 = 180 Nm
The difference of their amounts if work:
240 Nm - 180 Nm = 60 nm

hope it helps!

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4 years ago

What will happen if we heat metal for long time​

What will happen if we heat metal for long time