A. the cube will melt after a period of time
B. the cube will float
C. the cube will sink in water
D. the cube will rest at an equilibrium position in water
Correct Answer:
Option B – the cube will float
Explanation
For the uniform cube 10cm volume = 10 x 10 x 10 = 103 cm³
Mass = 700g
∴ density = (Mass)/Volume = (700)/100 = 0.7gcm−³
since the density is less than the density of water, the cube will float

![A solid of mass 0.5kg initially at 50oC melts at 60oC. Calculate the quantity of heat required to melt it completely. [specific heat capacity of the solid =2.0KJ kg-1K-1][Specific latent heat of fusion of solid =1.0 KJ kg-1] A solid of mass 0.5kg initially at 50oC melts at 60oC. Calculate the quantity of heat required to melt it completely. [specific heat capacity of the solid =2.0KJ kg-1K-1][Specific latent heat of fusion of solid =1.0 KJ kg-1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png)