Chemistry, 08.01.2020 13:31 Daddysgirl2019
Io, one of jupiter’s moons, is about the size of earth’s moon. io has a radius of about 1.85 x 106 m, and the mean distance between io and jupiter is 4.22 x 108 m. jupiter has a mean radius of 7.15 x 107m, and a mass of 1.90 x 1027kg. if io’s orbit is circular, what is its orbital speed? a. 2.34 x 104 m/s c. 8.7 x 106 m/s b. 1.60 x 104 m/s d. 2.60 x 103 m/s
Answers: 2
Chemistry, 22.06.2019 12:30
Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.
Answers: 3
Chemistry, 22.06.2019 23:20
In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of nuclei to form , but larger stars can produce elements as heavy as
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Chemistry, 23.06.2019 00:30
What would be the original temperature of a gas that has a volume of 2.0 l and a pressure of 2.0 atm and an unknown temperature that the volume increased to 3.5 l in its pressure decreased to 1.0 atm if the final temperature is measured to be 11°c
Answers: 1
Io, one of jupiter’s moons, is about the size of earth’s moon. io has a radius of about 1.85 x 106 m...
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