The first thing we are going to do is find the equation of motion:
ωf = ωi + αt
θ = ωi*t + 1/2αt^2
Where:
ωf = final angular velocity
ωi = initial angular velocity
α = Angular acceleration
θ = Revolutions.
t = time.
We have then:
ωf = (7200) * ((2 * pi) / 60) = 753.60 rad / s
ωi = 0
α = 190 rad / s2
Clearing t:
753.60 = 0 + 190*t
t = 753.60 / 190
t = 3.97 s
Then, replacing the time:
θ1 = 0 + (1/2) * (190) * (3.97) ^ 2
θ1 = 1494.51 rad
For (10-3.97) s:
θ2 = ωf * t
θ2 = (753.60 rad / s) * (10-3.97) s
θ2 = 4544,208 rad
Number of final revolutions:
θ1 + θ2 = (1494.51 rad + 4544.208 rad) * (180 / π)
θ1 + θ2 = 961.57 rev
Answer:
the disk has made 961.57 rev 10.0 s after it starts up
Answer:
No.
Explanation:
Because wives should make decisions for their life themselves.It helps them be self dependent so that they won't have to depend on their husbands. By letting them make decisions themselves they can get a successful career on their own effort and decisions.
George Washington was the first president of the United States that is your answer
You can just put “/“ to represent dividing
Answer: Pin
Explanation:
Pin button is the button that is used for sticking or saving the ideas from the windows or web on that very place.This feature helps in reviewing or getting the idea back later anytime from the window as per users need. User use this button for saving any food recipe, steps of any process, guidelines etc.
- According to the question, Fryshta can use pin button from the help window for sticking or pinning the steps of inserting shapes in her presentation.She can have a look at the steps whenever she want.
