Trying to help my brother but i dont remember question 8. Pls help, thank you

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.