Two cars one twice as heavy as the other move down a hill at the same speed compared to the of the lighter car the momentum of the heavier is blank as much

Stion 13 of 20 : select the best answer for the question. 13. if a certain mass of mercury has a volume of 0.002 m3 at a temperature of 20°c, what will be the volume at 50°c? a. 0.002021624 m3 b. 0.004021624 m3 c. 0.000010812 m3 d. 0.002010812 m3

Who was the first scientist to measure speed as distance over time?

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two