Answer:
The best type of graph would be b. circle graph.
Explanation:
Answer:
PH scale
Explanation:
PH scale helps measure the acidity or the basisity of a solution where 7 is neutral solutions, above 7 is basic solutions, below 7 is acidic solutions.
You use the equation Velocity= Acceleration X Time so you divide 40 by 16 and get 2.5 seconds.
Force = mass x acceleration
force = 2500kg x (20m/s / 10m/s)
force = 2500kg x 2m/s^2
force = 5000kg m/s^2 = 5kN
i hope this is right (^^)