Out of that list, the concave mirror is the only item that can concentrate sunlight and heat into a small area. But if you could get ahold of a convex lens, that would be even better.
Number one- numbers of items sold. Number two- Thursday and Friday. Number three- 1,200. Number four-150
The speed of something in any given direction.
Answer:
answer is option 4
Explanation:
you have to use option 4 because u need to find out initial velocity (Vi)
