The answer would be, "Granite".
Number one- numbers of items sold. Number two- Thursday and Friday. Number three- 1,200. Number four-150
There is more wire to travel through,farther distance, and a higher possibility of other disruptions. Please Mark Brainliest!!!
Given :
The focal length of a concave mirror is 18 cm.
To Find :
The radius of curvature of the concave mirror.
Solution :
We know,

Therefore, the radius of curvature of concave mirror is 36 cm.
Hence, this is the required solution.
Answer:3.51
Explanation:
Given
Coefficient of Friction 
Consider a small element at an angle \theta having an angle of 
Normal Force

Friction 

and 






