Answer: 4
Explanation: because 0s aren’t significant and after the decimal point, there was to be a value greater than 0 than the rest are sig figs.
Option C is the right answer
- Flat mirror is given here
- We know that in a flat mirror the distance of object from the mirror is equal to distance of image from the mirror i.e v=u
- Only the side of image changes ime left is seemed right.
So the speed remains same 0.25m/s.
Answer: 100lbs
Explanation: The Earth pushes you down at 100lbs, so you push down the earth by 100lbs which is enough to keep you firmly attached to the ground and not allow you to jump more than a couple of feet.