Translate the statement into formula.Use k as the constant of variation.
1. V varies jointly as B and h.
2. t varies directly as W and inversely as n.
3. P varies directly as the square of V and inversely as R.
4. h varies directly as W and inversely as the square of r.
5. E varies jointly as m and the square of v.
6. I varies jointly as A and H and inversely as T.
7. The mass, m, of a cement block varies jointly as the length, l, width,w,and thickness,t , of the block.
8. The volume, V, of a gas varies directly as the temperature,T, and inversely as the pressure,P.
9. The collision impact, I, of an automobile varies jointly as the mass,m, and the square of the speed, s.
10. The intensity of a sound,i, varies directly as the solitude,A, of the sound source and inversely as the square of the distance,d,from the source s.
11. The safe load,s, for a beam, varies jointly as breath,b, and the square of the depth,d, and inversely as the lengt,l, between supports.
12. The Gravitational force,g, between two objects varies jointly as the mass of the first, and the mass of the second,
[tex] {m1 }^{2} m2 [/tex]
and inversely as the square of distance,d, between them.
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