PHYSICS MIDDLE SCHOOL

Somebody please help me my grade depends on it

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Answer 1

Answer:

Answer: Hope this helps!

Explanation:

a rock formed from particles that are deposited and lithified are sedimentary.

rocks formed from cooling and hardening magma or lava is igneous.

a rock formed when an already existing rock is subjected to extreme heat and pressure is metamorphic.

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Omg, give me some advice about phizics i have to study it

State the objects in the universe that reflect light from stars

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Everything in the universe that is not a star reflects light from Stars. Otherwise you can't see it.

Why is foam a good insulator?

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air or any sort of gas is not that good in conducting heat in relation to other materials.
since foam consists of many bubbles with trapped gas it both stops convection by simply being in position, and prevents conduction of heat through it, due to the gas inside

Answer: Foam is a good insulator for two reasons. First, it is filled with gas bubbles; gases conduct heat less effectively than either liquids or solids, and trapping the gas in small bubbles prevents the gas from effectively transferring heat via convection.

Explanation:

Hope this helps <3

Glacial episodes are an example of

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they are an example of a positive feedback.

Frost wedging in a sentence

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example "How would i put frost wedging in a sentence?" LOL hope this helped

A teacher points to a microscope sitting on the desk. Which conclusion best explainswhy the microscope is not moving?

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Answer:

The object is sitting

Explanation:

Therefore the object cannot be in current motion as no force has been acted upon it (exept gravitational force)

A spring stores 3500 j of energy when it is stretched 1.5 meters. What is the spring constant of this spring? A) 4667 N/m B) 778 N/m C) 3938 N/m D) 3111 N/m