Since the Power is directly proportional to the velocity, their ratio

is constant.
<span>Therefore </span>

which is a proportion:
500 : 1000 = x : 1728
that can be easily solved:
x = (500×1728)/1000 = 864kW
P/9 = 90
Multiply 9 to 90 to isolate the variable.
P = 9 x 90
P = 810
Both of these variables represent a common measure used in chemistry.
The amount of material/volume is the material’s concentration.
The rate is the reaction is increase by altering the concentration.
There are 6/10 left over. 6/10 reduces to 3/5.