What is rock that forms when melted, or molten, rock from Earth's mantle cools and hardens is called what? pleas answer as soon as possible

The originalmomentum of a pencil is distributed equally to the other half of

the pencil.

The pencil breaking into two is as a result of the internalforces acting in

opposite direction which caused the breakage.

The total momentum of a body before collision being equal to the total

momentum of the two objects after collision has occurred which is why the

pencil will have momentum distributed equally in this scenario.

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Answer:

ORIGINAL MOMENTUM OF THE PENCIL GETS DISTRIBUTED TO THE BROKEN HALFS EQUALLY .

Explanation:

GENERALLY :

• For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. That is, the momentum lost by object 1 is equal to the momentum gained by object 2.

• The above statement tells us that the total momentum of a collection of objects (a system) is conserved - that is, the total amount of momentum is a constant or unchanging value.

• Since the forces between the two objects are equal in magnitude and opposite in direction, and since the times for which these forces act are equal in magnitude, it follows that the impulses experienced by the two objects are also equal in magnitude and opposite in direction.

IN THIS CASE :

(neglecting the impulse and force of gravity)

• The net external force on the system is ZERO
• The collision and the breakage that happens is PURELY due to the internal force which are equal and opposite.
• When we consider the wall and the pencil together as a system , the net external force on the system is zero.
• We also assume that the wall is very heavy and thus it remains at rest even after the collision.
• Thus , according to the law of conservation of momentum,  the pencil must have the same momentum imparted to it initially.
• Therefore , the ORIGINAL MOMENTUM OF THE PENCIL GETS DISTRIBUTED TO THE BROKEN HALFS EQUALLY .

Final answer:

The inclined plane is the best simple machine to assist with moving heavy objects into a truck. It allows for less force to be used by distributing the required force over a longer distance.

Explanation:

The simple machine that is best suited to assist with the task of moving heavy objects into a moving truck 1.5 meters above the ground is the inclined plane (option D).

An inclined plane is a flat surface that is inclined or sloped, which allows us to move objects up or down with less force. By using an inclined plane such as a ramp, we can reduce the amount of force needed to lift the heavy objects into the truck.

For example, instead of trying to lift a heavy object straight up into the truck, which would require a significant amount of force, we can use an inclined plane to gradually raise the object by pushing it up the inclined surface. This allows us to distribute the required force over a longer distance, making it easier to move the object.

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Answer:

True

Explanation:

In the first step of coal making all the plant species and trees which start decaying, gets buried under the earth crust and lead to the formation of peat. The peat is further acted upon by the heat and pressure thereby leading to the formation of lignite coal (soft brown coal), which further turns into bituminous coal (black and brittle) and then get converted into anthracite (highest carbon content and is found at greatest depth)