0.01 s
It asks me about the scientific notation

Scientific notation of 0.01 is 1×10^-2

Explanation:

answer; ///i do believe that the correct answer is ; ///(physical change);

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.