Much of the bedrock in virginia's piedmont region, originally formed by cooled magma, has re-crystallized under a great deal of heat and pressure. one likely rock found here would be a) gneiss. b) halite. c) limestone. d) sandstone.

The correct answer is - A) gneiss.

Because the bedrock has re-crystallized because of high pressures and temperatures deep into the ground, that means that we can expect metamorphism to have occurred in the area. The metamorphic rocks are rocks that initially have been igneous or sedimentary, but because they were exposed to high temperatures and pressures deep into the ground, they start to change their structure, and eventually become new, metamorphic rocks.

In this case, we have igneous rocks that have been exposed to high pressure and temperatures, most likely granite. That would mean that we can expect to find the metamorphic rock gneiss in the area, as it is the one that forms from granite that has been exposed to high temperatures and pressures in the ground.

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.