704
Physics Heat & Thermodynamics Level: High School
By how much will a slab of concrete 18 m long contract when the temperature drops from a 24A^oC to -16A^oC ? (The coefficient of linear thermal expansion for concrete is 10^-5 per degree C. )
701
Physics Heat & Thermodynamics Level: High School
A steel cable spanning a river is 200 m long when the temperature is 20 degree C . What will be its length when the temperature drops to 0 degree C ? (The coefficient of thermal expansion of steel is 12 x 10^-6 (K^-1) .
700
Physics Heat & Thermodynamics Level: High School
Properties of material
A copper wire is found to break when subjected to minimum tension of 36N . If the wire diameter were half as great , we would expect the wire to break when subjected to a minimum tension of ?