Haley is trying to pull an object upward. The below forces are acting on the object. Fp=5500 N Fg=6000N. Which represents the net force?

Net force   is ↓ 500 N

Explanation:

Here we have

Fp = ↑ 5500 N = pulling force of Haley

Fg = ↓ 6000 N  = Downward acting force of gravity (weight) on the object

Therefore the net force is then given by;

Net force  = 5500 N  - 6000 N  = - 500 N

Here we note that in the above equation, it is assumed that the net force will be upwards as we subtracted the Fg force from the Fp force, and since the result is negative, it means our assumption is wrong and the force is in the direction of Fg

Hence we have the net force as

Net force   = ↓ 500 N  = Downward acting force.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.