The resulting tidal interaction saps momentum from the orbiting body and transfers it to the primary's rotation, lowering the orbit's altitude until frictional effects come into play.

You still might have some measurable frictional effect but if the cart has freely rotating stiff wheels and axles it should make for a better demonstration.

This is due to the creep of the yarns and the coating material and to the internal frictional effects.

The geostrophic wind neglects frictional effects, which is usually a good approximation for the synoptic scale instantaneous flow in the midlatitude mid-troposphere.

Firstly, imagine that a sample parcel of air flows 500 meters above the sea surface, so that frictional effects are already negligible.

He assumed a geostrophic interior flow, while neglecting any frictional or viscosity effects and presuming that the circulation vanishes at some depth in the ocean.

When the Ekman number is small, disturbances are able to propagate before decaying owing to frictional effects.

In reality, this situation does not exist, since we have ignored frictional effects.

Outside the tropics and aloft from frictional effects of the surface, the large-scale winds tend to approach geostrophic balance.

The frictional effect is modeled as a shear stress at the wall acting on the fluid with uniform properties over any cross section of the duct.