Another Science question

Question

"Perform the following sequence of operations, applying significant rules: Dr. Sormunen's head weighs 5.05 kg. When Dr. Sormunen places his head in a graduated bucket, the water level rises from 15.8 L to 21.0 L. What is the density of his head?".

(Use correct SF ( significant figures) and units in your answer)

Answer 1

"Perform the following sequence of operations, applying significkg/m3ant rules: Dr. Sormunen's head weighs 5.05 kg. When Dr. Sormunen places his head in a graduated bucket, the water level rises from 15.8 L to 21.0 L. What is the density of his head?".

(Use correct SF ( significant figures) and units in your answer)

Mass of the head = 5.05 kg

Volume of head when in water = 21.0 -15.8 = 5.2 L = 5.2 *1000 cc = 5.2 * 10³ =5.2*10^-3 m³

Density of head = Mass /Volume = (5.05/5.2) * 10³ kg/m³ = 971.15 kg/m³