InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Solve the following sum |
Answer» Hope u understand it...mark me as brainliest.1. A STEEL is 40 cm long at 20 OC. The coefficient of linear expansion for steel is 12 X 10-6 (Co)-1. The increase in length and the final length when it is at 70 oC will be… Known : The change in temperature (ΔT) = 70oC – 20oC = 50oC The ORIGINAL length (L1) = 40 cm Coefficient of linear expansion for steel (α) = 12 x 10-6 (Co)-1 Wanted : The change in length (ΔL) and the final length (L2) Solution : a) The change in length (ΔL) ΔL = α L1 ΔT ΔL = (12×10-6 oC-1)(40 cm)(50oC) ΔL = (10-6)(24 x 103) cm ΔL = 24 x 10-3 cm ΔL = 24 / 103 cm ΔL = 24 / 1000 cm ΔL = 0.024 cm b) The final length (L2) L2 = L1 + ΔL L2 = 40 cm + 0.024 cm L2 = 40.024 |
|