The tip speed ratio of a turbine is the ratio r = t/w, where t is the speed of the tip of a blade and w is the speed of the wind. (engineers have found empirically that a turbine with n blades extracts maximum power from the wind when r = 2π/n.) calculate dr/dt (t in minutes) if w = 75 km/h and w decreases at a rate of 4 km/h per minute, and the tip speed has constant value t = 150 km/h.

Step-by-step explanation:

We are given the following information in the question:

where, R is the tip speed, T is the speed tip of blade and W is the speed of wind.

We have to find , whem W = 75 km per hour, , T = 150 km per hour

Formula:

Putting all the value, we have:

correct

step-by-step explanation:

i would say true? if the unit was informational and it "refreshed your understanding", then true.