What substance has very high melting and boiling points and is a good conductor of electricity when dissolved in water? select one: a. nonpolar covalent b. ionic c. metallic d. polar covalent

answermeridional ;

35. a insulated cylinder of solid gold (k 310 kw/m-k) of radius v2 m and height 5 m is heated at one end until the temperature at each point in the cylinder is given by w(r, y, z) (30 z2)(2-(r2+ y2). determine the rate of heat flow across each horizontal disk given by z 1, z 2, and z 3, identifying which has the greatest rate of heat flow across it.

explanation: