A 1.0 kg beaker containing 2.0 kg of oil (density=916kg/m3) rests on a platform scale. A 2.0 kg block of iron is suspeneded from a spring scale and is completely submerged in the oil, as shown above. a)Which scale reading should be larger (or should they be the same)? b) when is the iron in equilibrium, what is the reading in the spring scale? c) When is the iron in equilibrium, what is the reading on the platform scale?