The viscous force depends on the coefficient of viscosity, radius of sphere & terminal velocity, Find the expression for the viscous force. Given that the value of dimensonless constant is 6π

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. the winds blow from west to east in jet streams but the flow often shifts to the north and south. jet streams follow the boundaries between hot and cold air. the earth's rotation is responsible for the jet stream as well.

Ithink they do have the same properties just in less quantities i think

It may possibly be c i think |-/