(2) If you overdo it, you will get it ........................ (1 minute).

If the midpoint is 0, the midpoint is 0, the connection is 0, and the overshoot is 0, then,,, .........................................................................................................................................

When ... ............................ (1 min)

A circle with diameter is circumscribed with a circle with diameter, and in the middle, that is, ................................. (1).

Finishing:,,; .................................( 1)

(3) The value of "energy" can be "or" ................................... (4 points).