20
what rock would you be?
over time, rocks transform from one type to another through the geological processes that occur on earth. consider this fact as you read and respond to this lesson's discussion prompts.

imagine that you are a rock. what type of rock would you be and where would you be located—for example, would you be deep within the earth or on the surface?
what were you like before you became the rock you are now and what type of rock will you be in the future?
be sure to describe the processes involved in the changes you have gone through to get to where you are now, as well as the changes you will undergo as you change your rock type again.

look at tyler's post:
i am a piece of a sedimentary rock sitting here in the crust. i used to be a magnificent metamorphic rock, but over time, i was weathered down to small pieces by the wind. i became sediment and then was covered by other sediments. in time, i was cemented together with these sediments as they pushed against me with more and more pressure. as the rocks continue to pile on top of me, i will get pushed further underground. eventually, i will melt and become igneous rock. i know this because it has happened before. it's all part of the rock cycle.

Metamorphism often occurs on two scales: contact and regional. Contact metamorphism occurs relatively locally, in areas adjacent to igneous intrusions or in areas that are in contact with hot water known as hydrothermal fluids.

Typically this kind of metamorphism is caused by moderate pressure and extreme heat that may last for a period of days to thousands of years. In cases of contact metamorphism, the most extreme metamorphism occurs at the contact point between the parent rock and the intrusive magma or hydrothermal fluid. The degree of metamorphism then decreases rapidly as distance from the heat source increases. Depending on the source, zones of contact metamorphism may range from a few millimeters to tens of meters.

In contrast to contact metamorphism, regional metamorphism occurs over much larger areas. In areas such as rising mountain ranges, large igneous intrusions can form and warp overlying strata increasing the pressures above the intrusion. Also the extreme heat and pressures caused by tectonic forces or deep burial will cause widespread metamorphism.

and here's a link(you cant report me because i took a picture of the link, so ha-ha)

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be