Which scenario best describes motion? A. a toy train in position 4 on a number line
B. a race track that is 100 meters long
C. a ball rolling from point A to point B
D. a student living 150 miles from Chicago

Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?