do you think that the united states should officially adopt the metric system?
if so, do you think the us should adopt the metric system slowly over time or quickly?
if not, do you think that science in the us should change back to using older units, like feet and pounds?
explain your choice in a short paragraph.

10. a person with a mass of 15 kg is walking uphill at a velocity of 2 m/s. what is the walker's momentum? a. 15 kg-m/s b. 30 kg-m/s c. 10 kg-m/s d. 13 kg-m/s 16. two bouncy balls colliding with each other is an example of what type of collision? a. inelastic collision b. elastic collision c. parallel collision d. mass collision 20 which of the following is considered to be a vector? a. temperature b. mass c. velocity d. time