Question

What is the total hydrostatic pressure 250 cm below the surface of water which is open to the air at sea level?

a) 24.5 kPa

b) 24.6 kPa

c) 103.8 kPa

d) 125.8 kPa

2. What is the buoyant force on an object of density 400
kg/m^{3} and total volume of 1.5 m^{3} when the
object is held and submerged in water so that 20% of its volume is
above the surface of water?

a) 1176 N

b) 4704 N

c) 5880 N

d) 11760 N

3. What is the *net force* on an object of density 400
kg/m^{3} and total volume of 1.5 m^{3} when the
object is completely submerged in water?

a) 4704 N

b) 5880 N

c) 8820 N

d) 14700 N

Answer #1

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