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RealSavage4Life
22.01.2021 •
Physics
I WILL GIVE BRAINLIEST PLEASE HURRY
Evan examines a diagram of the rock cycle in his science textbook. He wonders how he can connect what he has learned about matter and energy to the rock cycle. Which statement explains what happens to material as it moves through the stages of the rock cycle?
Group of answer choices
A) New matter is being created all of the time.
B) The same matter is recycled over and over.
C) Eventually the broken-down matter disappears.
D) Old matter is destroyed and new matter takes its place.
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Ответ:
Hiii
The answer should be B)The same matter is recycled over and over.
Ответ:
Explanation:
Second Newton's Law
It allows to compute the acceleration of an object of mass m subject to a net force Fn. The relation is given by
The net force is the sum of all vector forces applied to the object. The block has two horizontal forces applied (in absence of friction): The 30 N force acting to the right and the 60 N force to the left. The positive horizontal direction is assumed to the right, so the net force is
Thus, the acceleration can be computed by
The negative sign indicates the block is accelerated to the left