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A large flat slab of metal at temperature T­­­­ 0 has a hole in it. The metal is warned to a new temperature T> T­­ 0 . Upon warming, the area of the hole will (A) increase. (B)decrease. (C) remain the same size. (D) possibly change size, depending on the shape of the hole.

A large flat slab of metal at temperature T­­­­0  has a hole in it. The metal  is warned to a new temperature T> T­­0. Upon warming, the area of the hole will
(A) increase.
(B)decrease.
(C) remain the same size.
(D) possibly change size, depending on the shape of the hole.

5 years ago

Answers : (3)

sankalp nainwal
36 Points
							
b
5 years ago
rehman ali
15 Points
							
(a)  different metal expand due to higher temperature because due to movement of particles they have need more space , then hole increase 
one year ago
Vikas TU
14136 Points
							
Metals expand when you heat them, so the circle should expand. There's no real difference between the circle and a hole (of the same size) cut out of it. The circle is, in effect, the circumference of the hole you put into it. So the hole will get larger.
one year ago
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