The centripetal force of an object undergoing uniform
circular motion is half as great
as before when its radius is doubled and its speed remains constant.
To add, the centripetal force is <span>a force
that acts on a body moving in a circular path and is directed toward the center
around which the body is moving.</span>
The hunter gatherers today are different from the ones in the Paleolithic age due to the fact that we are much more advanced technology wise. Even if we’re talking about the amazon tribes they’ve had hundreds of years to advance the way they make their weapons. But they are also similar when it comes to the gathering aspect (I don’t know this 100% so may want to fact check it)
It's technically false that the fall of the Berlin Wall symbolized the end of communism since communism still exists, but it did mark the end of communism in Germany.
The human activity most widely viewed as changing the planet is the burning of fossil fuels. ... to melt, threatening water supplies for hundreds of millions of people. ... and phosphorus to the biosphere than would occur naturally. ... compounds that can remain active in the environment for thousands of years .
hope this helps u
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