Perm State University

Vertical Projectile Motion Taking into Account the Wind

We consider the problem of the motion of a projectile thrown vertically upward from a surface. In addition to gravity, the drag force of the medium is taken into account, which is considered a quadratic function of the relative velocity of the projectile. It is also assumed that...

An Isolated Hyposaline River Occurrence of Birsteiniolla (Foraminifera) From Western Australia, Previously Known From Central Asian Lakes and Interior Seas

A low diversity foraminiferal assemblage inhabits a hyposaline stretch of the Jerdacuttup River, which flows into Jerdacuttup Lakes near Hopetoun, south coast Western Australia, but is not connected, at least by any surface flows, to the open Southern Ocean. Among the six species...