The answer is number (3) if am wrong am sry
The best question that could prompt a scientific investigation is: <u>What substances dissolve in ocean water?</u>
This way the person experimenting can use several variables and make observations. Upon making observations, the person can be able to gather as much data as he can in order to answer the original question that he asked.
85 N - 40 N = 45 N
And depending on direction the greater force is being pulled towards
