Question

A submarine under the sea has a lower density than the seawater around
it, which is 1025 kg/m³ because most of the submarine’s volume consists
of air that has a density of 1.225 kg/m³. If 90% of the submarine’s volume is
air and 10% of its volume is steel of density 7700 kg/m³, how many times
greater is the upthrust force that the water applies to the submarine than
the submarine’s weight? Round your answer to one decimal place.

Answer 1

Answer:

Q1: A submarine under the sea has a lower density than the seawater around it, which is 1,025 kg/m3, because most of the submarine's volume consists of air that has a density of 1.225 kg/m3.