Carlos uses one golf ball to set another golf ball in motion. The following diagram shows how Carlos designs his experiment. Carlos releases the ball on the string from different heights. Each time, the first ball strikes the second ball, which then rolls down the track. Which force causes the first ball to swing downward? A a pull due to gravity
B a pull from the string
C a push from Carlos's hand
D friction between air and the golf ball​

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

Which ocean is on the eastern coast of north and south america? arctic ocean indian ocean pacific ocean atlantic ocean

Fruit bats in central america eat bananas and other fruits. banana plants rely on bats for pollination. what would be the most likely consequence on the banana crop if fruit bats were eliminated from the area? the banana crop would increase because bats would stop eating the crops. the banana crop would decrease because bats would no longer pollinate the crops. the banana crop would remain constant because bees would replace the bats. the banana crop would remain constant because the plants would adapt using asexual reproduction.