Answer:
(C) Center left turn lanes!
Explanation:
I'm positive this answer is correct! :)
Have a nice day!
Explanation:
Think of brushes as a sliding contact.
In an alternator the brushes provide power to the field coil which is physically mounted on the rotating shaft. They provide this direct current through two slip rings.
By controlling the power flow to the field, the power output of the alternator can be controlled. A regulator circuit is used to control the field so that the output voltage is maintained to about 13.5 to 14.5 VDC.
FUN FACT: Many brush holders have a small holes near the brush exit. When you assemble the alternator you physically push the brushes all the way into their holder and then thread a small wire through these hole. After the alternator is assembled you can pull the wire out and the brushes will snap into position.
A think is the correct answer
Answer:
The sound intensity is reduced by a factor of 1995.26
Explanation:
When comparing two sound intensities, the intensity level is measured in the unit of decibel or dB. The intensity of the threshold of hearing for a human being is 10^−12 W/m^2
. When the intensity level is zero, it means that the sound intensity is the same as the threshold of hearing.
The reduced sound intensity level is given as 33 dB, so
10 log (I/Io) = - 33
I : intensity of the sound
Io ( =
10^−12 W/m^2): threshold of hearing
So, the intensity ratio is
I/Io = 10^-3.3
= 5.01 x 10^-4
1/ 5.01 x 10^-4 = 1995.26
