What is created when solids, liquids, an gases mix with one another

What is hidden during a lunar eclipse? isn't the moon hidden?

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?

Which of the following represents an upright image? a. -do b. +m c. -m d. +do