Answer:
AI
Explanation:
it stands for artificial intelligents
T=distance over speed
T=40m over 9.8ms
T=answer
*l Take in air and fuel (Intake)
*l Compress (squeeze) the air and fuel (Compression)
*l Ignite and burn the air-and-fuel mixture (Power)
*l Get rid of the burned fuel gases (Exhaust)The Answer is C.Exhaust
Considering that the book is moving with constant speed, the force applied by Anna must be the same that the friction force:

If we clear the previous equation:
C . plate a is negatively charged and plate b is positively charged