# When Two Vectors Are Parallel

Two vectors u and v are parallel if their cross product is zero i.e. uxv0.Vectors - Motion and Forces in Two Dimensions - Lesson 3 - Forces in Two DimensionsWhen we subtract two vectors we just take the vector thats being subtracting reverse the direction and add it to the first vector. This is because the negative of a vector is that vector with the same magnitude but has an opposite direction (thus adding a vector and its negative results in a zero vector).

A introduction to representing vectors using the standard Cartesian coordinate systems in the plane and in three-dimensional space.On a two-dimensional diagram sometimes a vector perpendicular to the plane of the diagram is desired. These vectors are commonly shown as small circles. A circle with a dot at its centre (Unicode U2299 ) indicates a vector pointing out of the front of the diagram toward the viewer.Circuit Symbols and Circuit Diagrams Two Types of Connections Series Circuits Parallel Circuits Combination Circuits When there are two or more electrical devices present in a circuit with an energy source there are a couple of basic means by which to connect them. They can be connected in series

Adding vectors First note that on this diagram two arrows are labelled b.However each arrow has the same magnitude and the same direction therefore they A circle of latitude on Earth is an abstract eastwest circle connecting all locations around Earth (ignoring elevation) at a given latitude.. Circles of latitude are often called parallels because they are parallel to each other that is any two circles are always the same distance apart.Current Location Calculus III (Notes) 3-Dimensional Space Tangent Normal and Binormal Vectors