Question

Problem 4 [15] a) The average density of a typical iceberg is 0.86 that of seawater. What fraction of an iceberg's volume is submerged? b) Assume the iceberg is a cylinder and has a r = 15m and the total volume, V = 100000m². What is the pressure at the bottom of the iceberg? c) What would the pressure at the bottom of the iceberg be if there is a water current under the iceberg with a speed of 3m/s? Problem 5 [8] a) Describe what would happen to the charges in a neutral rod (Rod A) if charged rod (Rod B) was brought within proximity (but not touch) one end of a neutral rod (Rod A). (Include sketches) b) If Rod A was broken in half during the scenario listed in part a, will the rods be neutral or charged? If charged, explain (+) or (.). If not charged, explain why not.

Answer 1

ASSMATE Date: Pago: Problem 4 21% = 0.86 SSW i → iceberg sw Seawater i if icebenge weighs 100 units Problem a V 0.86 il Siceberg = 0.86 I seawater This means (say) 100 unit mass of iceberg will have volume than same mass of sea water will have volume 0.86 v. TO Balance weight of iceberg The displaced volume of water is -0.86 fraction 86% of iceberg is submerged only 0.14 fraction or 14% stay above water level. Ans 0.86 15m density of density of celeberg is required Iowa 1.027 g/cm3 = and 3 b) V = 100000 m sea water or 1027 kg/m3 0.14 L I Liceberg 0.86L h water, so depth h = 0.86 € lets find lengths of iceberg volume = T8²L 100000 = TX 15² x L L = 141 m

CIASSMAte Date Page : so depth (Bottom of iceberg) = 0.86 x 141.5 121.6m Pressure Isnt goh + Paton 1827 * 9.81* 14.6 t 1.013 x 105 la 1.326 x 106 pa Cover 13 timee the surface pressure) C) Bernoulli equalion A increase in velocity of fluid result in of pressure AP= 0.5% 1027 x 9 462105 pa decrease I sxv2 P = P-AP 1.32681076 4621.5 1032 18106 Pa pa Problem: a) ut I conductive Rod] Rod B charged with +++ cpositive charge) SO Then when you bring Rod B closer to one end of rod A, tive charge will attract electrons towards it end closer to Rod B will get live changed while other end (far end) will get tire B ++++++ Neutral charge А 1 B A 177++ +

ferrend Near end Rods will be charged b) H+ ++++ 4 • Please note Changes flow only in conductors Rod A4 B are Non conductive There will be no induced changes An a conductos charge stays on surface only Nor inside Bulk (Body).