Answer: 1.12g/ml
Explanation
Ist step
Volume of the object =final volume of water in the cylinder -Initial volume of water in cylinder
= 85ml -52ml = 33ml
2nd step
Density = Mass/ Volume
37 g/ 33ml =1.12g/ml
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:
d. Singapore
Explanation:
singapore is developed and can provide basic services.
it also has high gdp
A model that depicts population change through time is called "Demographic Transition." It is based on an analysis of observable shifts in birth and mortality rates in industrialized civilizations during the previous 200 years, which American demographer Warren Thompson started in 1929.
The demographic transition model developed by Warren Thompson explains how a nation's population varies over time. The assertion made is accurate. The demographic transition of Warren Thompson demonstrates how, over time, a country's population changes.
Learn more about demographic transition here: brainly.com/question/1139915
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