For the semicircle line charge of (p, C/m) and radius (R m ) on (xy- plane) and its center is at origin. Find (E) at : a) origin. b) at (0,0,h). c )Calculate (E ) if ( Pi = 5µC ,R = 3m and h = 2m ) to calculate(E). %3D %3D

Question 13 NMI is Non- Interrupt.

My Signals and Systems question is attached. I don't understand how to figure out parts b and c mostly, but help with a would also be appreciated.  The problem is from Alan V. Oppenheim by Alan S. Willsky. Thank you!

858445655 O Blackboard Remaining Time: 59 minutes, 42 seconds. * Question Completion Status: 1C 20 3 40 50 60 70 80 90 10 11G 120 130 140 150 160 170 185 19D20 36 37 380 390 400 410 42 430 44 450 46 47o 48 49 50D Mention some advantages of fiber optic. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 14px A 1-Faster Speeds. 2-Longer Distances. 3-Better Rellability. 4-Thinner and Sturdier. 5-More Flexibility for the Future. QUESTION 31 Name the components that make the EFIS system? For the toolbar, press ALT+F10 (PC) or ALT+FN F10 (Mac). BIUS Paragraph Arial 14px A 1-Control panel. 2-EADI, 3-EHSI. 4-Symbol generators. Th Click Saue and Submit to saue and submit. Click Save All Ansuers to save all answers. MacBook Air