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Latitude and Longitude
The answer depends on what h is supposed to represent.
To locate points on the Earth's surface, we can use either rectangular coordinate system or geographic coordinate system.4digit or 6 digit reference systems are under rectangular ( projected) system.Their difference lies in assigning Easting and Northing. 4 digit RS uses 2 Easting numbers and 2Northing numbers to show the location of points where as 6 digit uses 3 Easting and 3 Northing numbers. If there is any Hesitation please Well come.
There are several methods.You need a reference point (the origin. For an n-dimensional space you will need a set of n axes and n measures which define the position with regard to origin. The axes need not be orthogonal (at right angles) as can be seen from isometric graph paper. The measures need not all be distances, they can comprise one distance and the remainder being angles.Alternatively, you can have many reference points and directions from these reference points to the position. This is the system used by early cartographers for making maps before satellite mapping became possible. The reference points were called triangulation points, and as they moved across the region being mapped, they identified new triangulation points (whose positions they had worked out) so that they had these reference points reasonably near the position to be identified.Yet another method was to have a set of reference points and distances from these reference points to the position. This is the system used for GPS where the reference points are 3 or more satellites and the measures are distances to the position. Actually, the measures are of time but given the speed of light in the Earth's atmosphere, converting time to distance is trivial. A lot of trigonometry follows.
By definition, the word "collinear" means that the points lie in a LINE. The precise manner of line you are talking about depends upon the geometric frame of reference you are using. For example, in Euclidean geometry a line defined by two points is usually taken to be "straight" like the intersection of two planes; but in Global geometry such as the reality of the Earth's surface, a line defined by two points is curved. If you fly from New York to Tokyo, your line of flight is nearly a semicircle; we do not have the technology to travel "straight" from New York to Tokyo through the Earth's core.
The two basic points of reference on the surface of the Earth are the North Pole and the South Pole. These points represent the northernmost and southernmost points on Earth's axis of rotation, respectively.
The two basic points of reference on the surface of the Earth are the North Pole and the South Pole. These points represent the northernmost and southernmost points on the Earth's axis of rotation.
Reference points on Earth's surface are fixed locations used as markers for navigation, surveying, and mapping. These points can be natural, like mountain peaks or lakes, or man-made, like buoys or survey monuments. They provide a consistent framework for determining positions and distances on the Earth's surface.
We have several reference points on the Earth's surface, for our convenience. The North and South Poles are a couple. The choice of Greenwich as the zero longitude, and of the International Date Line are another two. These points have no specific feature on the surface, they are decided on for the convenience of the users.
The reference point used to make all government maps is typically latitude and longitude coordinates from the Earth's surface. These coordinates provide a universal system for locating points on the Earth's surface with accuracy.
No, potential energy on the surface of Earth is not always zero. Potential energy depends on the reference point chosen, which affects the calculation of the potential energy. Typically, the reference point for potential energy on the surface of Earth is chosen to be at ground level, but it can be adjusted if needed.
reference point
They are the poles.
They are North Pole and South Pole
Latitude and Longitude
There is no absolute measure for potential energy. The calculation for potential energy depends on the chosen reference level. Quite often, the Earth's surface is chosen as the reference level - in this case, an object on the surface will have zero potential energy.
The height of the lands surface above sea level