The Eiffel tower in Paris is made primarily of iron, whose coefficient of linear expansion is about 10 × 10^?6/°C. On a cold day when the temperature is –10°C the Eiffel tower is 300 meters tall. Its height on a hot day when the temperature is 40°C is
a. 300.0015 m.
b. 300.015 m.
c. 300.15 m.
d. 301.5 m.
e. 315 m.
c
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Characterize each of the following processes as being reversible (A) or irreversible (B). (Some answers may be debatable!)
(a) A living creature grows. (b) A ball is dropped and falls freely downward. (c) A ball rebounds elastically from a wall. (d) A piece of hamburger meat cooks on a grill. (e) A cube of ice melts in a glass sitting on a table. (f) A bowling ball elastically scatters some bowling pins.
The best way to increase the calculated fatigue-crack propagation cycles to failure of a part is
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What type of heat transfer is used to carry heat from the house furnace to the living room of most houses?
A. natural convection of air falling over the cooling land B. forced convection air or force convection of water C. forced convection of water D. natural convection of air rising over the warming land
List at least three qualities that would tend to make a type of astronomical object useful as a standard candle
What will be an ideal response?