A.
if you have seen a newton's cradle this will make sense.
in order for both of them to travel at the same speed, the balls need to have the same mass and the speed to begin with tocontinue to travel at the same speed because mass can affect the impact of the force on the balls by each other, causing each ball to have different speeds.
Answer:
True
Explanation:
Driving safely at night requires seeing well not only under low light, but also requires drivers to see low-contrast objects.
Answer:
(e)
Explanation:
At resonance we know that 
That is 



We have given resonance frequency f =4511 Hz and inductance L=1.82 mH
So 



So option e is the correct answer