Physics, 04.03.2021 17:20, vorequeen

DATE g and
The mass of a box is 300
its base area is 15 m² Calculate the
pressure exerted by the box on the
ground (g= 9.8 m/s^2

Answers: 1

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answered: Guest

When the warmer parts go up and the colder parts go down in a circular motion.

answered: Guest

All these statements are related to drake's equation. it is a probabilistic equation that shows an aproximate number of civilizations in our galaxy that we can communicate with. all the numbers that are inserted into equation are not precisely known so the result varies from 1000 to 100,000,000. the equations was not created to calculate exact number of extraterrestrial civilizations but to increase scientific knowledge how to find them.the equation is: $n= r_{*} *f_{p}*n_{e}*f_{l}*f_{i}*f_{c}*l$ where: n= represents the number of civilizations in our galaxy that we could in principle communicate with today. $r_{*} =$ the average rate of star formation in our galaxy $f_{p} =$ the fraction of those stars that have planets $n_{e} =$ represents the number of planets in the galaxy that are in principle capable of having surface liquid water and life. $f_{l} =$ essentially represents the probability that life eventually arises on a habitable planet. represents the number of life-bearing planets in the galaxy. $f_{i} =$ epresents the total number of planets on which intelligent beings have evolved and developed a communicating civilization at some time in the galaxy's history. $f_{c} =$ essentially represents the probability that on a planet with life, some organisms will eventually evolve to the point where they can build radio telescopes. $l =$ is a factor that depends on how long civilizations that reach our level of technology are able to survive.

answered: Guest

Biological effects of low exposure to radiation: damage cells.damage dna.are hard to detect.are repaired by the body.biological effects of high exposure to radiation: kill cells, tissues, and organs.produce a variety of cancers.result in acute radiation syndrome.

answered: Guest

4. determine the centripetal force acting upon a 40-kg child who makes 10 revolutions around the cliffhanger in 29.3 seconds. the radius of the barrel is 2.90 meters. given: m = 40 kg; r = 2.90 m; t = 2.93 s (since 10 cycles takes 29.3 s).hope i

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DATE g and
The mass of a box is 300
its base area is 15 m² Calculate the
pressure ex...