A piece of aluminium has a mass of 200 kg and a volume of 0.074 m 3. Calculate its density in kg/m 3, to two significant figures. The kilogram (kg) is the standard unit for mass. The cubic metre ...

Gyro-resonant wave acceleration is favoured in regions of low particle density where the phase velocity of the waves becomes large. The peaks in phase-space density that Chen et al. observe are ...

The range of the particle in the emulsion exceeds 3,000 JJL, and there is continuous increase in the grain-density along the track in approaching A. Near A, the grain-density is indistinguishable ...

In solids-handling, blending (combining two or more materials to achieve a combined product) and segregation (the separation of particles into distinct zones according to ...

The cores of galaxies may not be made of what scientists thought. New research suggests that they could hold giant […] The post Galaxy Cores Could Hold Giant Dark Stars Or Invisible Clumps Of Matter ...