What kind of changes contribute to spontaneity? A. Reduced randomness
B. An increase in entropy
C. An increase in enthalpy
D. Absorbed heat in a reaction

the solar system used to have much dust particles option no d

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )