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:
Social media is the correct answer for the above question.
Explanation:
- Social media is the media that is used to communicate with the other person with the help of an internet connection. There is so much software that gives this type of facility. for example whats up and twitter.
- The above question asked about that technology which is used to connect the people to communicate and the technology is social media which gives the features to connect and communicate all over the world with the help of the internet. Hence "Social media" is the correct answer.
<span>If a attachment is not reliable to open, terrible effects can happen, peradventure it may have a virus or even malware that can destroy a computers software.
To avoid this and stay on the safe side, try the following:-
- Open it in protected view
- Do not save the attachment on your computer
- Look at the author and read the message carefully to make sure it is not biased.
- Open it on a flash-drive </span>
The item that would be most likely to keep in a database would be the payroll records. The other items such as address book, financial statements and sales reports would not necessarily be placed in a database.
The answer would be letter A.
