What is one of the hardest tasks for researchers ?

Astudent is working in a lab to determine how time affects impulse. the student keeps the force the same in each trial but changes the impact time. some data is shown.

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost