A metal ball is released into a viscous liquid during an experiment. The ball’s terminal velocity in the liquid is then measured. The experiment is carried out four times. In each repeat, one of the following is altered. 1 the density of the metal of the ball 2 the height from which the ball is released 3 the density of the liquid 4 the depth of the liquid Which two changes, on their own, change the terminal velocity of the ball in the liquid?
- A1 and 2
- B1 and 3
- C2 and 4
- D3 and 4