A geologist is suspicious that a certain rock specimen is hollow. She weighs the rock in air and finds that it weighs tw

[answerhappygod]

A Geologist Is Suspicious That A Certain Rock Specimen Is Hollow She Weighs The Rock In Air And Finds That It Weighs Tw 1 (34.73 KiB) Viewed 11 times

A geologist is suspicious that a certain rock specimen is hollow. She weighs the rock in air and finds that it weighs twice as much as when it is under water. Calculate the fraction of the rock's volume that is solid. Take the density of the solid part of the rock as 2500 kg/m³, and the density of water as 1000 kg/m³. → One method of determining percentage body fat of a person is called hydrodensitometry. To use this method, a person is weighed in air, then weighed while fully submerged in water. The person's density is calculated from these measurements and is compared with the known densities of non-fat body tissue and fat tissue to determine the person's percentage body fat. measured using hydrodensitometry. She weighs 638 N in A women's percentage body fat air, and 44 N under water. If the density of the water is p= 1000 kg/m³, find: (a) The buoyancy force on her when underwater (b) The mass of displaced water (c) The volume of displaced water (d) Her average density