Hollow sphere

Calculate the weight of a hollow striebornej sphere (density 10.5 g/cm3) if the vnútorný diameter is 13 cm and wall thickness is 5 mm.

Correct answer:

m =  3007.3 g

Step-by-step explanation:

ρ=10.5 g/cm3 D=13 mm h=5 mm cm=5:10  cm=0.5 cm  r1=D/2+h=13/2+21=7 cm r2=D/2=13/2=213=6.5 cm  V1=34 π r13=34 3.1416 731436.755 cm3 V2=34 π r23=34 3.1416 6.531150.3465 cm3  V=V1V2=1436.7551150.3465286.4085 cm3  m=ρ V=10.5 286.4085=3007.3 g



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







Tips for related online calculators
Need help calculating sum, simplifying, or multiplying fractions? Try our fraction calculator.
Tip: Our volume units converter will help you convert volume units.
Tip: Our Density units converter will help you convert density units.

You need to know the following knowledge to solve this word math problem:


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

Related math problems and questions: