Brass sphere

Find the weight of a brass ball with an outer radius of 12 cm, a wall thickness of 20 mm if the brass's density is 8.5 g/cm3.

Correct answer:

m =  25.9202 kg

Step-by-step explanation:

R=12 cm h=20 mm cm=20:10  cm=2 cm r=Rh=122=10 cm  ρ=8.5 g/cm3  V1=34 π R3=34 3.1416 1237238.2295 cm3 V2=34 π r3=34 3.1416 1034188.7902 cm3  V=V1V2=7238.22954188.79023049.4393 cm3  m1=ρ V=8.5 3049.439325920.2338 g  m=m1 kg=m1:1000  kg=25920.2338:1000  kg=25.92 kg=25.9202 kg

Did you find an error or inaccuracy? Feel free to write us. Thank you!


Tips to related online calculators
Do you know the volume and unit volume, and want to convert volume units?
Tip: Our Density units converter will help you with the conversion of density units.
Do you want to convert mass units?

We encourage you to watch this tutorial video on this math problem: video1   video2

Related math problems and questions: