Solve the following roblems. (9.) A crow bar of length 2 m is used to lift a stone of weight 200 kg. If the fulcrum is set 50 cm apart from the stone, how much effort should be applied to the other end of the crowbar to balance it? ​

The ozone hole appears in antarctica during

The total amount of energy contained in an object

Imagine that the rightward current flows in the rod for a short time. as a result, what will the net charge on the right and left ends of the rod become? left end negative and right end positive left end negative and right end negative left end negative and right end nearly neutral left end nearly neutral and right end positive both ends nearly neutral