Question

A composite disc is to be made using equal masses of
aluminium and iron so that it has as high a moment of inertia
as possible. This is possible when
(a) the surfaces of the disc are made of iron with aluminium
inside
(b) the whole of aluminium is kept in the core and the iron
at the outer rim of the disc
(c) the whole of the iron is kept in the core and the
aluminium at the outer rim of the disc
(d) the whole disc is made with thin alternate sheets of
iron and aluminium

Answer 1

Answer:

watch a forge in fire

and getuggsnyggnnk jgjd$554674

hfndhcu

Answer 2

Answer:

Mark me as brainlist.....................

........