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Gneiss is a banded or foliated metamorphic rock, of similar composition to granite. It is very hard and used where granite would be used, some gneisses are used as facing stone on buildings.

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What are examples of ductile rocks?

In order to be ductile a rock usually must be very hot. Rocks in lowest part of the crust and in the mantle (apart from the lithosphere) are usually ductile. Rock salt often exhibits ductile behavior as well.


How can I split a rock in half effectively?

To split a rock in half effectively, you can use a hammer and chisel. Place the chisel on the rock where you want it to split, then carefully strike the chisel with the hammer until the rock breaks along the desired line. Make sure to wear safety goggles and gloves to protect yourself from flying debris.


When you use a crowbar to lift a heavy rock which force is bigger the weight of the rock or the force applied to the end of crowbar?

The force applied to the end of the crowbar is bigger than the weight of the rock. By using the crowbar as a lever, you apply a smaller force over a longer distance to lift the heavier rock with a greater force over a shorter distance. This allows you to overcome the weight of the rock more easily.


How can I split a large rock effectively?

To split a large rock effectively, you can use methods such as drilling holes into the rock and then inserting wedges or feathers into the holes. By applying pressure to the wedges, the rock can be split along its natural lines or weaknesses. Another method is using a hydraulic splitter, which exerts force to break the rock apart. It is important to wear appropriate safety gear and follow proper procedures when attempting to split a large rock.


When you use a lever to lift a rock is the output force is represented by the amount of force you apply to the end of the lever?

What you do to your end of the lever is the INPUT force.The OUTPUT force is what happens down there under the rock.How to decide ? Try this:The OUTPUT is the RESULT of all the tools, equipment, resources,knowledge, tricks, and machinery you have, and how you use them.

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