Question

anwser both of the following

Answer 1

Answer:

7) 2.7g/cc

8) 1.3g/ml

Step-by-step explanation:

7)

We should be clear with one formula i.e. Density = Mass/ Volume

Hence Mass Given = 2700g

Volume = 20*10*5 = 1000cc

Hence Density  = 2700/1000 = 27/10 = 2.7g/cc

8) By archimedes principle we can state the volume of the object equal to the volume of water displaced by it.

Hence Volume of pipe = 60 ml

Mass of Pipe = 78g

Hence Density = 78/60 = 1.3 g/ml