The more arms it has the less of a chance the prey has to swim away.
The basic SI unit that has anything to do with electricity is the unit
of electric charge ... the Coulomb.
Every other unit connected with electricity is a combination of the
Coulomb and the other basic SI units ...kilogram for mass, the meter
for length, and the second for time.
Answer:
4 times
Explanation:
Given:
diameter of the input piston, 
diameter of the output piston, 
In such mechanical arrangements the fluid acts as an incompressible link and the pressure remains uniform throughout the fluid bulk.
Then, by the Pascal's law:

where:
are the input and the output forces respectively.
are the input and the output area of pistons respectively.




Yes. True. Resistors slow the current down at the point in the circuit.
Hope it helps you...
( Answered by Benjemin )