In all three parts, the dependent variable was.


the independent variable is the one that the scientist intentionally manipulates. in part i involving the golf ball and table tennis ball, the independent variable was.

in part ii involving the inflated and deflated footballs, the independent variable was.


in part iii involving the baseball, the independent variable was.

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?