While walking across campus one windy day, an engineering student speculates about using an umbrella as a "sail" to propel a bicycle along the sidewalk. Develop an algebraic expression for the speed a bike could reach on level ground with the umbrella "propulsion system." The frontal area of bike and rider is estimated as 0.3m2

Solution:

Note: Refer the diagram

Drag coefficient data for selected objects table at

Hemisphere (open end facing flow),

Substituting all parameters,

Then,

And the equation becomes,

Thus the floyds travels at wind speed.

the correct answer is c.stops after infancy and childhood.

myelin is the substance of the central nervous system (cns) that insulates nerve cell axons to increase the speed at which nerve impulse travels. myelination is a process of myelin formation. this process occurs postnatally, begins in the embryo during the midst of early development and finishes after birth.