Calc Pinnochio - The Terrible Dog-Fish

The Terrible Dog-Fish from Pinnochio is more OP than many may think...

"He must have been swallowed by the terrible Dog-Fish, who for some days past has been spreading devastation and ruin in our waters." "Is this Dog-Fish very big?" asked Pinocchio, who was already beginning to quake with fear. "Big!" replied the Dolphin. "That you may form some idea of his size, I need only tell you that he is bigger than a five-storied house, and that his mouth is so enormous and so deep that a railway train with its smoking engine could pass down his throat."

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"Is this Dog-Fish who has swallowed us very big?" asked the puppet. "Big! Why, only imagine, his body is two miles long without counting his tail." Whilst they were holding this conversation in the dark, Pinocchio thought that he saw a light a long way off. "What is that little light I see in the distance?" he asked. "It is most likely some companion in misfortune who is waiting, like us, to be digested."

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The Terrible Dog-Fish is a sea monster over 2 miles long (3.218688km, or 3218688cm). To find its mass, we'll use inverse-square law. The average length of a dogfish is between 70cm and 100cm, while the average mass of a dogfish is 7.1 to 9.9 pounds (3.49266kg to 4.49056kg). Given the immense size of the Terrible-Dogfish, I believe the highend is justified for both size and mass.

M2 = (H2/H1)^3M1
= (3218.688/1)^3 X 4.49056kg
= 1.49739765e11kg
= 149739765 tons

Next, for the kinetic energy. The average speed of a spikey dogfish is 25 miles per hour, or 11.17600m/s.

KE = (0.5)mv^2
= (0.5) X 1.49739765e11 X 11.17600^2
= 9.35147114e12 joules
= 2.235055243785851 kilotons

That's not all though! The book describes the Terrible Dog-Fish as swimming as swift as an arrow.

Only to think of poor Pinocchio's terror at the sight of the monster. He tried to avoid it, to change his direction; he tried to escape, but that immense, wide-open mouth came towards him with the velocity of an arrow.

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Taking this statement at face value, an arrow flies at 225 feet a second, or 68.58m/s.

KE = (0.5)mv^2
= (0.5) X 1.49739765e11 X 68.58^2
= 3.52129259e14 joules
= 84.1609127629063067 kilotons

One last thing? Water at average temperatures is 50 times more viscous than air.

(Low end)

E = 9.35147114e12 X 50
= 4.67573557e14 joules
= 111.75276218929254 kilotons

(High end)
E = 3.52129259e14 X 50
= 1.7606463e16 joules
= 4.2080456500956024968 megatons

Final Results
The Terrible Dog-Fish's length = 3.219km
The Terrible Dog-Fish's mass = 149739765 tons
The Terrible Dog-Fish's kinetic energy (low low end) = 2.235 kilotons
The Terrible Dog-Fish's kinetic energy (high low end) = 84.161 kilotons
The Terrible Dog-Fish's kinetic energy (low high end) = 111.753 kilotons
The Terrible Dog-Fish's kinetic energy (high high end) = 4.208 megatons