�y��vlog

It has been at the centre of mass litigation in the United States brought mostly by residential gardeners claiming the weedkiller caused their cancer.

Accelerator experiments usually measure the basic properties of a beam, such as its centre of mass, its spread in particle positions or its density profile.

These observations shed light on the earliest stages of star formation, and might help astronomers to understand the conditions under which binary stars — pairs of stars that orbit the same centre of mass — are formed.

In Hong Kong’s Wan Chai district, which has been at the centre of mass marches since June, small businesses say they have seen a drop of 30% to 40% in sales on protest weekends.

For the collision between vapours and ultrafine particles, the reduced mass μi,p needs to be considered; vi,p is then the centre of mass velocity: