The centre of gravity of a solid hemisphere of radius a is :
(A) `(0,(3)/(8)a)`
(B) `((3)/(8)a,0) `
(C)` ((3)/(8)a*(3)/(8)a)`
(D) None of these

8(3)/(8)+3(3)/(8)+2(3)/(8)+(3)/(8)

(64)^(-(1)/(2))-(-32)^(-(4)/(5))=?(1)/(8)b*(3)/(8)c*(1)/(16)d(3)/(16)e none of these

Find distance of centre of mass of solid hemisphere of radius 8cm from centre

(3)/(8) is what part of (1)/(12)?(3)/(7)(b)(1)/(12) (c) (4)/(3) (d) None of these

(1.6xx3.2)/(0.08)=?( a) 0.8(b)6.4(c)8(d)64(d) None of these

int_(0)^(oo)(dx)/([x+sqrt(x^(2)+1)]^(3)) is equal to (3)/(8) (b) (1)/(8)(c)-(3)/(8) (d) none of these

If a line y=3x+1 cuts the parabola x^(2)-4x-4y+20=0 at A and B ,then the tangent of the angle subtended by line segment AB at the origin is (8sqrt(3))/(205) (b) (8sqrt(3))/(209)(8sqrt(3))/(215) (d) none of these

400-:0.1xx0.2=?(a)0.8(b)8(c)80(d)8000(e) None of these

The radius of gyration of a solid hemisphere of mass M and radius Rn about an axis parallel to the diameter at a distance (3)/(4) R is given by (centre of mass of the hemisphere lies at a height 3R//8 from the base.)