The student must have made an error in her measurement in the concentration of hydrogen ion in the basic solution given. From her measurement, the concentration is 1 × 10−3 M. If we calculate the pH, we get:
pH = -log ( 1 × 10−3) = 3
A pH of 3 does not signifies a basic solution it is in the acidic range. So, the measurement is wrong.
B - antidepressant (anti meaning against)
I'm not sure about the magnitude, but the direction of the normal force is upward.
V=v0+at=38m/s;
v^2=v0^2+2ad=>d=(v^2-v0^2)/2a=544/4=68m
