origin

Examples of origin in the following topics:

• Components of a Vector

  • To visualize the process of decomposing a vector into its components, begin by drawing the vector from the origin of a set of coordinates.
  • Next, draw a straight line from the origin along the x-axis until the line is even with the tip of the original vector.
  • To find the vertical component, draw a line straight up from the end of the horizontal vector until you reach the tip of the original vector.
  • You should find you have a right triangle such that the original vector is the hypotenuse.
  • The original vector, defined relative to a set of axes.

• Stress and Strain

  • The thing to keep in mind is that the force above is acting on the test charge Q, in the positive radial direction as defined by the original charge q.
  • This means that because the charges are both positive and will repel one another, the force on the test charge points away from the original charge.
  • Notice that this points in the negative $\hat{r}$ direction, which is toward the original charge.
  • This makes sense because opposite charges attract and the force on the test charge will tend to push it toward the original positive charge creating the field.
  • The positive r direction points away from the origin, and the negative r direction points toward the origin.

• Electric Field from a Point Charge

  • The thing to keep in mind is that the force above is acting on the test charge Q, in the positive radial direction as defined by the original charge q.
  • This means that because the charges are both positive and will repel one another, the force on the test charge points away from the original charge.
  • Notice that this points in the negative $\hat{r}$ direction, which is toward the original charge.
  • This makes sense because opposite charges attract, and the force on the test charge will tend to push it toward the original positive charge creating the field.
  • The positive r direction points away from the origin, and the negative r direction points toward the origin.

• Adding and Subtracting Vectors Graphically

  • Draw a new vector from the origin to the head of the last vector.
  • This new vector is the sum of the original two.
  • Next, draw out the first vector with its tail (base) at the origin of the coordinate axes.
  • Draw a new vector from the origin to the head of the last vector.
  • This new vector is the sum of the original two.

• Polarization By Scattering and Reflecting

  • The light parallel to the original ray has no polarization.
  • The light perpendicular to the original ray is completely polarized.
  • Unpolarized light scattering from air molecules shakes their electrons perpendicular to the direction of the original ray.
  • The scattered light therefore has a polarization perpendicular to the original direction and none parallel to the original direction.

• Elasticity, Stress, and Strain

  • First, the object returns to its original shape when the force is removed—that is, the deformation is elastic for small deformations.
  • Strain is the change in length divided by the original length of the object.
  • Additionally, the change in length is proportional to the original length L0 and inversely proportional to the cross-sectional area of the wire or rod.

• Origin of Pressure

  • In Newtonian mechanics, if pressure is the force divided by the area on which the force is exerted, then what is the origin of pressure in a gas?

• Holography

  • The pattern itself is seemingly random, as it represents the way in which the scene's light interfered with the original light source - but not the original light source itself.
  • The interference pattern can be considered an encoded version of the scene, requiring a particular key - the original light source - in order to view its contents.
  • This produces a light field identical to the one originally produced by the scene and scattered onto the hologram .
  • An interference pattern can be considered an encoded version of a scene, requiring a particular key - the original light source - in order to view its contents.
  • This produces a light field identical to the one originally produced by the scene and scattered onto the hologram

• Photocopy Machines and Printers

  • A positive process is used to produce black on white copies, while a negative process is used to produce black on white from negative originals.
  • A lamp illuminates the original document.
  • The white areas of the original reflect light onto the surface of the drum, which exhibits photoconductivity (it becomes a conductor in the presence of light).

• Sound Systems, Computer Memory, Seismograph, GFCI

  • Thus, the electrical current variations that pass through the speaker are converted to varying magnetic forces, which move the speaker diaphragm, forcing the driver to produce air motion that is similar to the original signal from the amplifier.
  • If a GFCI detects that there is a leakage of current, it produces an EMF and a current in the opposite direction of the original current.