Most bridges contain interlocking steel grates(a steel=1.2x10^-5C)that allow the bridge to expand and contract with the changes in temperature.The Golden Gate Bridge in San Francisco is about 1350 meters long.

Question

anonymous · Answer

Most bridges contain interlocking grates that allow the bridge to expand and
contract with the change in temperature. The Golden Gate Bridge in San
Francisco is about 1350 m long. a) The seasonal temperature variation in San
Francisco ranges from about 0°C to 30.°C. How much will the bridge expand
between these extremes? (steel  12  106°C1) b) Approximately how
wide is this gap compared to the length of an automobile?