By What Length Will a Slab of Concrete That Is $24 ^ { \circ } \mathrm { C } \text { to } - 16 ^ { \circ } \mathrm { C } ?$

question 43

Multiple Choice

By what length will a slab of concrete that is originally 18 m long contract when the temperature drops from $24 ^ { \circ } \mathrm { C } \text { to } - 16 ^ { \circ } \mathrm { C } ?$
The coefficient of linear thermal expansion for this concrete is $1.0 \times$ $10^{ - 5} \mathrm {~K} ^ { - 1 }$

• A) 1.5 cm
• B) 1.2 cm
• C) 0.50 cm
• D) 0.72 cm

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