Calculate the following:
A gold bar has a mass of 56 \(g\) and a volume of 13 \(cm^3\).
a. Calculate the density of gold.
b. If the density of water is \(1\ g/cm^3\), calculate the relative density of gold. Also, provide whether the object will float or sink in water.
b. If the density of water is \(1\ g/cm^3\), calculate the relative density of gold. Also, provide whether the object will float or sink in water.
[Note: Enter the answer with one decimal point].
a. Density of copper rod: \(g/cm^3\)
b. Relative density:
The objects behaviour with water: