Exer. A solid wood sphere whose density is less than that of water will float. The depth d...

Exer. A solid wood sphere whose density is less than that of water will float. The depth d that the sphere will sink into the water is determined by the equation

where r is the radius of the sphere and k is a positive constant less than or equal to 1. If r = 6 cm, graphically estimate d for each constant k.

Oak sphere in water k = 0.85