A single slit, 0.10 mm wide is illuminated by a wavelength of light 461.9 nm. An observing screen is 1.0 m away. What is the angular width of the central maximum? {0.53o} A single slit of width 0.1 mm is illuminated by a 600 nm light. How far is the third dark band from the central bright band on a screen 40 cm from the slit? (1.03o, 0.72 cm)

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

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*

Ivana walks 2km north then turns around and walks 3km south