Answer:
B. the atomic weight of the element
Explanation:
since it talks about mass i think weight
c) Both a) and b)
please mark me brainliest
Answer: varriable
Explanation:meaning one element, feature or factor able to change
answer is 14
A= v-u/t
A = 75 - 0/5
A = 14
v = final velocity
U = initial velocity
T = time taken