Answer:
Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.
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[H+] = 1.0*10^-10 M
pH = -log([H+])
pH = -log(1.0*10^-10)
pH = 10.00
B for sure, considering iron oxide is just fancy for rust.