The biggest design innovation that SpaceX has pioneered is, of course, the fact that Dragon 2 is partially reusable, potentially resulting in a significant cost reduction. The first stage of the spacecraft is capable of re-entering the atmosphere and landing vertically after separating from the second stage.
Answer: Two hydrogen nuclei come together to produce one helium nucleus and two protons, and energy is released.
Explanation:
All stars (including the Sun) at birth begin to fuse two hydrogen nuclei to form helium through nuclear fusion.
In this sense, nuclear fusion is the union of two light atoms, releasing energy in the process, which is the cause of the great luminosity of a star. Especifically, the hydrogen nuclei will begin to fuse, generating helium nuclei in the process and releasing huge amounts of energy.
To unerstand it better:
To shine, the stars transform their hydrogen into helium by means of nuclear fusion. When at half of its life a star is without hydrogen, the nucleus becomes entirely helium and the star declines, becoming colder and brighter due to the energy generated by the nuclear reactions, then the star begins to contract.
Nevertheless, if the star is bigger, this helium will be also consumed and the nucleus transformed in Carbon, then in Oxigen, and so on. Being the last transformation Iron until the star delivers all its energy.
Answer:
The correct answer is A. The prevailing climatic type in the southeastern part of the USA, Western Europe, Southern Brazil and northen Argentina is the mid-latitude or humid temperate.
Explanation:
The temperate climate characterizes regions whose temperature varies regularly throughout the year, with the average above 10 ° C in the warmer months and between -3 ° and 18 ° C in the cold months. They have four well-defined seasons: a relatively warm summer, a fall with gradually lower temperatures as the days go by, a cold winter, and a spring, with temperatures gradually increasing with the passing of days. Humidity depends on the location and geographic conditions of a given region.
Plessy v Ferguson was a landmark case and was a United States Supreme Court decision to uphold the laws that kept segregation, under the phrase "separate but equal". This regarded public facilities for the most part including buses, bathrooms and water fountains. This was brought from the Committee of Citizens in New Orleans, so this was applied across the board in Louisiana.