Estion 27 1 pts
Which of the following is the dependent variable in the following example:
You roll a toy car down a slanted board and see how far it rons, then you change the angle of the board and try
again.
The distance the car traveled.
O The angle of the board
Question 28
1 pts
Warm ocean currents tend to warm up the climate and bring moisture and rain.

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

What volume would 2.25 moles of ne has occupy at stp?

If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?