f the surface area of a person is about 1.8 m2 and the air pressure 1 bar:

a) What is the total force acting on this person due to atmospheric pressure?

b) What is the mass of a solid object that would produce (from acceleration due to gravity at the Earth's surface) the same magnitude force as in part a)?

c) If the solid object from part b) was a cube of lead ( Pb=11.34 g cm-3), what would the side length of the cube be?