Convert 121 Cal to kilowatt-hours

here

Explanation:

0.000141 to kilowatt-hours. hope this helped

i'm assuming that the correct answer is indeed the first one/ "a"..

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 : )