Tutor profile: Allie A.
How do we explain the expanding universe?
How do we know so much about other stars in other solar systems? (Studying light curves!)
If we could travel to a black hole, what would we experience?
What was here and what happened prior to the Big Bang?
How can experimental data be analyzed to express the results of a motion experiment?
Why does the conservation of energy not necessarily mean all energy is useful?
needs and Allie will reply soon.