SOLUTION: A solid aluminium casting for a pulley consist of three discs, each 3/2 thick, of diameter 4cm, 6cm and 8cm. A central hole 2cm in diameter is drilled out. If the density of alumin
Algebra ->
Volume
-> SOLUTION: A solid aluminium casting for a pulley consist of three discs, each 3/2 thick, of diameter 4cm, 6cm and 8cm. A central hole 2cm in diameter is drilled out. If the density of alumin
Log On
Question 1136841: A solid aluminium casting for a pulley consist of three discs, each 3/2 thick, of diameter 4cm, 6cm and 8cm. A central hole 2cm in diameter is drilled out. If the density of aluminium is 2.8g/cm^3, calculate the mass of the casting. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! each 3/2 thick ??
3/2 of what?
============
Find the volume of the 3 discs.
Subtract the volume of the hole.
Multiply by the density.
