College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 33

A piece of copper tubing used in plumbing has a length of 60.0 cm and an inner diameter of 1.50 cm at 20°C. When hot water at 85°C flows through the tube, what are (a) the tube's new length and (b) the change in its cross-sectional area Does the latter affect the flow speed