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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.

Grade:upto college level

3 Answers

sankalp nainwal
36 Points
6 years ago
b
rehman ali
15 Points
one year ago
(a)  different metal expand due to higher temperature because due to movement of particles they have need more space , then hole increase 
Vikas TU
14149 Points
one year ago
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.

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