Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores. Aside from our sun, the dots of light we see in the sky are all light-years from Earth. They are the building blocks of galaxies, of which there are billions in the universe. It’s impossible to know how many stars exist, but astronomers estimate that in our Milky Way galaxy alone, there are about 300 billion.
By tightening a string you are actually putting more stress on the string you are giving it a new frequency that isn't natural.
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<span>The factors that determine how fast weathering occurs are the type of rock, type of soil, time it takes, and the climate.</span>
Answer:
The force needed is the weight of the rock minus the buoyant force.
Explanation: