Calculate the change in length of a concrete sidewalk (coefficient of linear expansion for concrete is 12 * 10-6 / oc) that is 50 meters that undergoes a temperature change of 25 oc. 0.15 0.015 0.00015

The correct answer is 0.015 meters.

Explanation:

We know that the change in length of a material on account of temperature change is given by

where

is the initial Length

is the coefficient of linear thermal expansion

is the change in temperature.

Applying values we get

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

have a great day!