C.) Laser. the light from the laser reflects off the shiny surface as the CD rotates
<span>The answer would approximately be 299,741.60</span>
First Stan txt (tomorrow by together) and stream freeze on YT Hybe labels !!!!!!!!!!!!!
A scientific law is the simple mathematical expression of the relationship involved. A principle is the same relationship expressed in words. A theory is the explanation of the facts that make up the relationship.
Answer:
L/2
Explanation:
Neglect any air or other resistant, for the ball can wrap its string around the bar, it must rotate a full circle around the bar. This means the ball should be able to swing to the top position where it's directly above the bar. By the law of energy conservation, this happens when the ball is at the same level as where it's previously released vertically. It means the swinging radius around the bar must be at least half of the string length.
So the distance d between the bar and the pivot should be at least L/2
