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What force pushed the ICE AGE ice sheets ? gravity operates horizontally? someone must know by now?m

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Submitted : 2018-06-14 06:54:19    Popularity:     

Tags: AGE  ice  sheets  force  pushed  

Think of a glacier as a slow moving river that is frozen solid. It still flows, but the rate may be measured in inches per year. A glacier is a movin

Answers:

Think of a glacier as a slow moving river that is frozen solid.
It still flows, but the rate may be measured in inches per year.

A glacier is a moving mass of ice traveling down a gully. There is a huge mass of ice and snow at the head end of it on the side of a mountain. It snows almost everyday on that mountain. The collected show and ice expands each day when it freezes and shrinks each day when the weather warms up. gravity causes the mass to slide down the mountain pushing the glacier part down the gully foot by foot. It may take a week for the glacier to move one foot but it does move down the gully to the terminus, usually the ocean or a lake.The melting water flows to the bottom of the glacier and greases the way for the glacier.

The weight of all the snow and ice Squashed the ice out SIDEWAYS at the outer edges of the glacier where there was no more ice to hold it back.

NOTHING "pushed' the Ice. Ice flows, just like liquid water does, but it is PILLED by gravity NOT "PUSHED. YES gravity DOES acit "DOWN' and PULLS things down along a gradient from higher elevations to lower elevations.. Gravity is a FORCE that has a direction, "Down," CAN HAVE A HORIZONTAL COMPONENT..

Take calculus 3 where you will learn all about vectors and how to resolve them into three di or two different component depending on WHICH COORDINATE SYSTEM you are using. You HAVE to "define" your coordinate system AND the "frame of reference" if you are gong to be understandable to other people. When you play sarcastic word games with people that just gets everything OF TOPIC. If you CANNOT communicate with other people you might s well be speaking a foreign language that no one else understands.

Gravity DOES have a horizontal component. Gravity "pulls". Gravity does NOT "push."

If you put roller skates on a steep hill does gravity make you roll down? Of course.
It is the combination of TWO forces. Gravity pulls down and a slope pushes sideways.
Of course this puts a sideways force on the rocks too so they wear down at the same time.
To form glacial valleys. Fiords and similar.

This comes from the reaction force of the ice on the rock.

By the same forces that move rivers. Gravity. Glaciers slid downhill very very slowly.

Yes, gravity. Gravity pulled the ice sheets downwards, but the ice was resting on solid rock. So it had to squish out sideways. It's the same as when you push downwards on a pile of sand.

Gravity at the end of the day.



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