3) As shown in the figure, a bimetallic strip, consisting of metal G on the top and metal H on the bottom, is rigidly attached to a wall at the left. The coefficient of linear thermal expansion for metal G is greater than that of metal H. If the strip is uniformly heated, it will G wwwwwwww ………………… A) remain horizontal, but get longer. B) bend in the middle. C) curve downward. D) remain horizontal, but get shorter. E) curve upward.
3) As shown in the figure, a bimetallic strip, consisting of metal G on the top and metal H on the bottom, is rigidly attached to a wall at the left. The coefficient of linear thermal expansion for metal G is greater than that of metal H. If the strip is uniformly heated, it will G wwwwwwww ………………… A) remain horizontal, but get longer. B) bend in the middle. C) curve downward. D) remain horizontal, but get shorter. E) curve upward.
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