Awind turbine is rotating counterclockwise at 0.626 rev/s and slows to a stop in 12.9 s. its blades are 17.9 m in length. what is the centripetal acceleration of the tip of the blades at t=0~\text{s}t=0 s?

276.5 m/s^2

Explanation:

The initial angular velocity of the turbine is

The length of the blade is

r = 17.9 m

So the centripetal acceleration is given by

At the instant t = 0,

So the centripetal acceleration of the tip of the blades is

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation:

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.