its D
i hope this helps to future test takers. i took the test and had to retake it because their wasn't an answer
Answer:
Friction is a surface force that opposes relative motion.
<span>Standard deviation is a calculation. It I used in statistical analysis of a easier job. hoped this helps u </span>
Work=f.d
Work=100*50 = 500
Power = work/time = 500/4
=125 watt
Answer:
Explanation:
= Vacuum permittivity = 
= Area = 
= Distance between plates = 1 mm
= Changed voltage = 60 V
= Initial voltage = 100 V
= Resistance = 
Capacitance is given by
We have the relation
The time taken for the potential difference to reach the required level is .
