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What do International Date Line and Greenwich Meridian represent?
The International Date Line represents the imaginary line that marks the change in calendar dates as one travels east or west across it. The Greenwich Meridian represents the prime meridian, from which time zones are calculated and Greenwich Mean Time (GMT) is measured.
Can an object have an eastward velocity while experiencing a westward accelerations?
The answer is yes and no.Acceleration is the rate of change of velocity. Velocity is speed plus direction.If an object is travelling eastward and slowing down in a straight line then its velocity is decreasing, it is still travelling eastward. However the force slowing the object is a westward force.A reducing acceleration (slowing down) is most often called a deceleration or negative acceleration. So you have a negative eastward acceleration.
When it's noon at Greenwich England what time is it where the Prime meridian crosses the Arctic Circle?
For the most part, time zones don't change north to south. It would still be noon.
What is the meaning of greenwich mean time?
Greenwich Mean Time (GMT) is the time of day at any point on the Greenwich meridian (the zero degree line of longitude). It is from this time that all other time zones on earth (+ or -) are compared therefore if you want to communicate things that happen all round the earth you use GMT to communicate this (rather than your local time) to avoid confusion and the need for calculations.
If the international date line can be shifted why not the Greenwich meridian?
Because the result would be anarchy!Sailors, airplane pilots, military ground forces and general civilians use Greenwich as the reference point of zero degrees longitude for all navigaton purposes. Repeat: ALL navigation purposes. Charts created a hundred years ago and still in use today refer to Greenwich as point zero. Time almanacs for celestial navigation (using a sextant or computer programs and/or in electronic charts) are in print, or computerized, or even in some cases memorized, that allow people to calculate their position upon this planet using Greenwich as the reference point.GPS systems in automobiles, upon ships & planes, in hand-held devices, would all have to be recalibrated should the reference point be changed.While yes, it is technically possible to change the Prime Meridian, there is no -- repeat NO -- advantage to doing so. Conversely, there is a HUGE monetary and technilogical cost to changing from the status-quo. Like it or not, Greenwich is, and will remain, the Prime Meridian.
How did moving westward change settlers lives?
something big
How did the colonist's of Virginia change the land?
Because of their constant westward migration.
How did mining and cattle ranching change during Westward Expansion?
good
How did westward expansion change the geography of the nation and demonstrate the determination of its people?
Yes
How did westward expansion change geography of the nation and demonstrate the determination of its people?
Yes
What is the difference between prime meridian and international dateline?
No. The "Prime Meridian" (Greenwich Meridian) is 0° longitude and runs through Greenwich, England, western Europe, and Africa. The International Date Line is on the other side of the world, at 180° longitude (east or west is the same line), and marks the start of each new calendar day. It is midnight at the Date line when it is noon at the Prime Meridian. The actual line has detours to accommodate Russia, the Aleutians, and New Zealand. The two meridians form a circle around the planet, and each divides the Eastern Hemisphere from the Western Hemisphere.
How did the new lands gained from France and Mexico change the pioneers and settlers?
It prompted a westward expansion.
