A0.5m diameter sphere containing pollution monitoring equipment is dragged through the charles river at a relative velocity of 10m/s. the sphere has a specific gravity of 0.5, is fully submerged, and tethered to the towing device by a 2m cable. what is the angle the towing cable makes with the horizontal? assume the water is at 10°c.

Explanation:

from figure

taking summation of force in x direction be zero

 .....1

taking summation of force in Y direction be zero

.........2

putting T value in equation 1

.........3

Water at 10 degree C  has kinetic viscosity v = 1.3 \times 10^{-6} m^2/s

Reynold number

so for Re =  cd is 0.072

degree

oil flow is a highly convective flow compared to water flow at normal temperature and pressure.

explanation:

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