The formula for blood flow rate is given by , where F is the flow rate, P₁ the initial pressure, P₂ the final pressure, and r the resistance created by blood vessel size. Which formula can not be derived from the given formula?

Un jugador de beisbol batea un foul recto en el aire.la pelota deja el bate con una rapidez de 120 km/h. en ausencia de resistencia del aire. ? cual sera la rapidez de la pelota cuando la atrape el catcher

What object a collides with object b and bounces back its final momentum is?

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?