Answer:
c glass
Explanation:
beacause glass is transparent and it would be easier to for refraction
Answer:
d = 1600 m
Explanation:
If car start from rest and accelerates uniformly then the displacement of the car is given as

now we know

now if the same car will accelerate from rest for four times of the previous time interval
then we will have


so the distance will be 16 times more

That can only be happening if the mass mysteriously increased somehow. I'd like to know how in the world THAT happened.

We know that force equals mass times acceleration, so substitute in the known values and solve.
