Equation Icon  { [ ]} ( U ) (g U sin h) 4r(rg),ur = 2rg,rV - r2 2g,hU + sin h ----- - 2r2--,r-------,h sinh ,h ,r sin h [ ( ) ] 1-4 2(g- b) 2 2(b-g) 2 -b,h- + 2r e (U,r) + 2e (b,h) + sin h sinh . (17) ,h