- a ship's total weight is equal to the weight of the water it displaces. if you want to calculate the
ship's weight, you must first know
a. the volume of water in the lake or ocean in which the ship is floating.
b. the volume of the entire ship.
c. the volume of the part of the ship that lies below the water's surface.
d. all of the above

c. the volume of the part of the ship that lies below the water's surface.

Explanation:

As stated in the problem, Archimedes' Principle tells us that that buoyant force on an object is equal to the weight of fluid it displaces.  The volume of water that a ship displaces is the volume it occupies below the surface.

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j