True or false Volleyball

IT IS GOOD TEAM STRATEGY TO HIT THE BALL AWAY FROM THE STRONGEST MEMBER
OF THE TEAM

THE SERVER SHOULD RUN ONTO THE COURT AS SOON AS THEY HIT THE BALL.

A PLAYER SHOULD OPEN HIS HANDS AND HIT A SETUP PASS WHEN THE BALL FALLS
BELOW THE WAIST.

THE SERVE IS NOT ALLOWED TO HIT THE NET.

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?