Characteristics of vectors:

Types of Vectors List

• Zero Vector.
• Unit Vector.
• Position Vector.
• Co-initial Vector.
• Like and Unlike Vectors.
• Co-planar Vector.
• Collinear Vector.
• Equal Vector.

The vectors are organisms that act as a carrier of a pathogen (disease-causing agent) from one person to other. For example, the female anopheles mosquito is a vector of malaria, and tsetse flies act as a vector of sleeping sickness.

• Self replicating, multiple copies.
• Replication origin site.
• Cloning site.
• Selectable marker gene.
• Low molecular weight.
• Easily isolates and purifies.
• Easily isolates into host cells.

Vector quantities have two characteristics, a magnitude and a direction. Scalar quantities have only a magnitude. When comparing two vector quantities of the same type, you have to compare both the magnitude and the direction. For scalars, you only have to compare the magnitude.

Viscosity is a scalar quantity. Displacement, force, velocity, and acceleration all have associated directions and are classified as vector quantities.

Stress is a physical quantity that defines the internal force. The stress is specifying as the force across a “small” boundary per unit area of that boundary. Stress is a fundamental quantity, like velocity, torque (energy). A one question strike in your mind which thing you can stress and which are not.

In a solid, or in a flow of viscous liquid, the force F may not be perpendicular to S; hence the stress across a surface must be regarded a vector quantity, not a scalar.

Stress is a tensor1 because it describes things happening in two directions simultaneously. You can have an x-directed force pushing along an interface of constant y; this would be σxy. If we assemble all such combinations σij, the collection of them is the stress tensor.

scalar quantity