The gravitational force exerted by an object is given by f 5 mg where f is the force in newtons, m is the mass in kilograms, and g is the acceleration due to gravity, 9.81 m/s². calculate the force exerted per unit of area by a column of mercury (density 5 13.59 g/cm³) that is 76.0 cm high. how high would a column of water (density 5 1.00 g/cm³) have to be to exert the same force?

Part a)

Part b)

Explanation:

As we know that force due to gravity is given as

now for force per unit area is given as

so for mercury we will have

Part b)

Now if water also apply same force per unit area

then we will have

if i understood you you wish to calculate power from voltage and current.

we have voltage of 220 volts and current of 5.3 amperes. the power is equal to the product of voltage and current.

where p is power, u is voltage and i is current.

so,

hope this .

r3t40