Cheryl has a mug that she says is made up of matter. heather says that the hot chocolate inside the cup is made up of matter, too. keaton says that the steam coming from the cup is also made up of matter. mikayla says that none of it is matter because matter is too small to see. which best describes who is correct?

What is the length x of the side of the triangle below? (hint: use the cosine function)

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.