A diver takes five objects under water: - A 5.00 cm by 9.00 cm by 14.0 cm brick,

Question

A diver takes five objects under water: - A 5.00 cm by 9.00 cm by 14.0 cm brick, weighing 11.0 N (above water) - A balloon filled with 1.00 kg of grape jelly, which has a radius of 7.27 cm - A bullfrog, which has an average density of 927 kilograms per cubic meter - An 2.05 kg pipe with an inner radius 2.00 cm, an outer radius of 3.30 cm, and a length of 35.0 cm - An identical pipe, but with the ends of the pipe closed so that the pipe is filled with air. When the diver lets go of each object, does it sink or rise?

Explanation / Answer

(density)_brick= (11/9.8)/(0.05*0.09*0.14)=1781.665 kg/m^3>1000kg/m^3 (will sink)

(density)_balloon=1/(pi*(0.0727^2))=60.22 kg/m^3<1000kg/m^3 (will not sink)

(density)_bullfrog=927kg/m^3<1000kg/m^3 (will not sink)

(density)_pipe1=2.05/(pi(0.033^2-0.02^2)*0.35)= 2705.93 kg/m^3>1000kg/m^3 (will sink)

(density)_pipe2=2.05/(pi(0.033^2)*0.35)= 1712.01 kg/m^3>1000kg/m^3 (will sink)

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.