To determine the velocity of an object, you need to know the displacement and the change in time.
v = displacement / change in time
Answer:52M
Explanation:
use S= 1000w/ MV
Here, s= molarity
w= the amount of NaCl
M= the atomic mass of NaCl
V= the volume of solution
Answer:
B as all the forces cancel out
Explanation:
20-20=0
25-25=0
Answer:
A pure substance has a definite chemical composition
