How do we determine the conditions that existed in the very early universe?

With these questions , 15 pts & brainliest

Will give brainliest! which statement best describes the similarities between fundamental forces? electromagnetic and strong nuclear forces influence the interaction between charged particles within an atom. gravitational and magnetic forces are both types of charges that occur in nature. nuclear and magnetic forces are both related to mass and weight. strong nuclear force is most like electrical force because they are both related to distance.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?