B. it was necessary to see data from more plants before the conclusion could be accepted.
The air resistance on the feather would be the correct answer.
Answer:bill 5 m/s. Jack:10 m/s
Explanation:
Cuz I took it
Answer:
D. a person pulling a sled.
Explanation:
contact force only occurs when something directly comes in contact with another object.
a. is wrong because that is called magnetic force.
b. gravitational force
c. is an electrical force
