What are the two types of electrical circuits

The four giant gas points that are made primarily of lightweight elements are

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =