Physics

Problem

21. Find the approximate minimum mass needed for a spherical ball with a 40 cm radius to sink in a liquid of density

1.4 \times 10^{3} \mathrm{~kg} / \mathrm{m}^{3}

(A) 37.5 kg (B) 375 kg (C) 3750 kg (D) 37500 kg (A) 37.5 kg (B) 375 kg (C) 3750 kg (D) 37500 kg