Thin strips of iron and zinc are riveted together to form a bimetallic strip that bends when heated. The iron is on the inside of the bend because:
A. it has a higher coefficient of linear expansion
B. it has a lower coefficient of linear expansion
C. it has a higher specific heat
D. it has a lower specific heat
E. it conducts heat better
Answer: B. it has a lower coefficient of linear expansion
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Relate differentiation to Saturn's excess internal heat
What will be an ideal response?
Water is flowing in a drainage channel of rectangular cross-section
At one point, the width of the channel is 12 m, the depth of water is 6.0 m, and the speed of the flow is 2.5 m/s. At a point downstream, the width has narrowed to 9.0 m, and the depth of water is 8.0 m. What is the speed of the flow at the second point? A) 2.0 m/s B) 2.5 m/s C) 3.0 m/s D) 3.5 m/s E) 4.0 m/s
Which planet is moving most slowly around the Sun?
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