Which characteristic should a good scientific question have? It should lead to a hypothesis that is testable.

It should have an answer that is already known.

It should not be answerable just through investigation.

It should include many variables about a wide range of topics.

why did the bird fly to the Warner region during a the winter time.

what is the function of the Spines on cacti.

what is a sequence of the human genome .

answer: the potential energy decreases from 379 j to 243 j

explanation:

for the law of conservation of energy, the total energy in a system must be conserved. the total energy of the system is given by the sum of kinetic (k) and potential (u) energy:

e = k + u

the total energy is e=675 j, and this does not change.

initially, the kinetic energy is k=296 j, so the potential energy is

at the end, the kinetic energy is k=432 j, so the potential energy is

so, we see that the potential energy has decreased from 379 j to 243 j.