An object is made up of three masses connected by massless rods of fixed length. mass a is located at (30.0 cm, 0 cm) and has a mass of 250 grams, mass b is located at (0 cm, 40.0 cm) and has a mass of 350 grams, mass c is located at (-20.0 cm, 0 cm) and has a mass of 450 grams. what is the moment of inertia of this object about an axis perpendicular to the x-yplane and passing through the origin

0.0605 Kg m^2

Explanation:

In this case where we have find he moment of inertia of this object about an axis perpendicular to the x-y plane and passing through the origin,  we can just add three moment of inertia's .

MOI= 0.25×0.3^2 + 0.35×0.4^2- 0.45×0.2^2

= 0.0605 Kg m^2

this means that the temperature of both substances will be equal

there are no components of a physical goal mentioned on the list of choices that you've provided.