List 2 discoveries from Thomson's experiment.

1 answer:

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Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson's plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged "soup."

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Explain how the shading of the direct light of the sun causes a lunar eclipse.

creativ13 [48]

The lunar eclipse happens when the Moon goes through the Earth's shadow. Earth dependably has a shadow, which is made by the Sun. On those uncommon events when the Moon, Earth and the Sun are altogether arranged perfectly, the Moon goes through this shadow.This would happen each full moon if the Moon circled around the Earth in an indistinguishable plane from the Earth circles around the Sun.

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3 years ago

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Our modern understanding of Pluto is that it is a member of the asteroid belt the giant planets the terrestrial planets no group

Oksi-84 [34.3K]

Answer:

Before, any form of extensive research was performed on the solar system we believed that, there are over nine planetary bodies, along with the satellites and the sun inside our solar system in a given sequence or a pattern. As, these celestial bodies are analyzed each time by the scientists, research workers, and astronomers. While, there are some standards set for each celestial body to be attributed as a planet, star, or any satellite etc. And for that reason, when the research workers analyzed the ninetieth and the far most planet from the sun which is also known as "Pluto", named after a Greek God.
We can say that its properties were far different from those that any planet had and thus it was analyzed for a very long time, as to know more about it and fortunately we were able to find out that it is completely one-of-a-kind the Kuiper Belt(of trans-Neptunian objects) inside the solar system.

And that is how the research workers decided that Pluto, which was once considered as planet is no more listed as one but it is a less planetary object present inside the Solar system.

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3 years ago

Which statements describe gridlines on a map? Check all that apply.

sergij07 [2.7K]

From the given options which may suitably apply to the description of grid-lines of the map are 

They are measured in degrees
They set up a reference system
They divide Earth into four equal parts

Answers: Options A, B and E

Explanation:

Option A describes that the grid-lines of the map are measure in degrees, which are very true as the grid are lined with angular measurement which thus be done in unit of angles and is in degrees only.

Option B says it develops the reference system which specifies about the area being plotted are grid depending upon the size which sets up the referential system of enumeration.

Option E is true as the world or the Earth has been divided into 4 equal parts through the Prime Meridian as the longitudinal line and Equator as the latitudinal line.

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3 years ago

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Which best describes the conservation of energy as a pendulum swings in the path shown below? the potential energy at point a is

Mrac [35]

I think the correct answer from the choices listed above is the third option. The conservation of energy as a pendulum swings in the path would be that the potential energy at point a is greater than the kinetic energy at point b. Hope this answers the question.

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3 years ago

Why would it be difficult to prove that a climate graph you know comes from the Cordillera region actually comes from this regio

qwelly [4]

For the given situation above, I think there is a lack of information regarding the one you posted. Here is what I got about the Cordillera Region.

The word Cordillera is actually a Spanish word that means mountain ranges. The climate is warm and temperate in Cordillera. Cordillera has a significant amount of rainfall during the year. This is true even for the driest month. The average annual temperature in Cordillera is 21.2 °C. The average annual rainfall is 1431 mm.

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3 years ago