Answer:
Since this is old, im just gonna get these points, don't wan't them to go to waste lm.ao
Explanation:
Density because it can measured and felt.
Because they come came out of the same thing so duh
Answer:
if we want to find force by using newton's law equation ( f = ma ) we have to use mass and acceleration not velocity ,but in this question they did not mention about acceleration but speed so the answer is D