5. What is the speed of transverse wave in a steel wire with a tensile stress of 2 × 10⁸ N/m². The density of steel is 7.8 g/cm³. (A)60 m/s (B)120 m/s (C)160 m/s (D)200 m/s (E)250 m/s

3. A spherical shell has inner radius R₁, outer radius R₂, and mass M, distributed uniformly throughout the shell. The magnitude of the gravitational force exerted on the shell by a point particle of mass m located a distance d from the center, outside the inner radius and inside the outer radius, is: (A)0 (B)GMm/d² (C)GMm/(R₂²-R₁³) (D)GMm(d³-R₁³)/d²(R₂³-R₁³) (E)GMm/(d²-R₁²)

5. What is the speed of transverse wave in a steel wire with a tensile stress of 2 × 10⁸ N/m². The density of steel is 7.8 g/cm³.
(A)60 m/s
(B)120 m/s
(C)160 m/s
(D)200 m/s
(E)250 m/s

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