Please help! Timed! I would really appreciate it ill try to give brainliest! Amy doesn't want to be late for class so she rushes to McDonalds at lunch. How much time would it take Amy to walk 2km to the restaurant for an apple pie if she walked at a rate of 4.5km/h? *

.44 m/s
.44 hr or 26.6 minutes
.44 hr/m or 2.66 minutes

Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*