They can be put into two categories: contact forces and non-contact forces. Forces can be added up as vectors. Effects of forces - Edexcel Turning forces are found in many everyday situations and ...

Vectors are equal if they have the same magnitude and direction regardless of where they are. Triangle ABC is isosceles. X is the midpoint of AB, Y is the midpoint of BC and Z is the midpoint of AC.

Scientists spent the next three decades teasing apart the underpinnings of viral biology to create a new generation of vectors. Among these, lentivirus-based vectors, derived from the HIV-1 ...