Question

the passage below describes a process of scientific inquiry. select the part of the passage that describes revising the hypothesis. hint: to revise the hypothesis, you use the results of the investigation to come up with a new explanation. a tennis ball and measuring tape zack was playing tennis with a friend. he noticed that while their rackets looked similar and weighed about the same amount, the strings were different. zacks racket strings were nylon while his friends were polyester. he wondered how the strings material affected how far it could propel a ball. since they have similar weights, zack assumed that the materials would apply the same force to the ball and send it the same distance. to test this, zack obtained 20 tennis balls. from the edge of the tennis court, he hit the first 10 balls using his nylon - stringed racket. he tried to hit each ball in the same direction and with the same force. his friend marked where each ball landed and measured the distance traveled. zack then repeated the procedure, hitting the remaining balls with his friends polyester - stringed racket. next, he calculated the average distance for each group. he found that the tennis balls hit with nylon strings traveled farther than those hit with polyester strings. zack reasoned that nylon must be more elastic than polyester, which causes the ball to travel a greater distance.

Explanation:

Zack initially hypothesized that similar - weighted rackets with different string materials would propel a ball the same distance. After conducting the experiment and finding that nylon - strung rackets made the ball travel farther, he used these results to form a new explanation about nylon being more elastic. This new explanation is the revised hypothesis.

Answer:

Zack reasoned that nylon must be more elastic than polyester, which causes the ball to travel a greater distance.