Explanation:
i expected to use Stefan's law of heat exchange but the value you gave aren't conclusive.
I should say that the temperature of the star should be close to that of the sun because of the similarity in the intensity curves
Velocity, because if an object is in motion with no direction we will consider it as speed, but if it has direction we will consider it as Velocity. Hope it helps
An element which is highly conductive, highly reactive, soft, and lustrous is most likely an alkali metal.
Alkali metals are in group 1 of the Periodic table which means that they have only a single valence electron.
This causes them to be soft and highly reactive because:
- The single valance electron leads to weak bonds amongst the element's atoms which makes them soft
- The elements want to lose the single valance electron so as to become stable so they will react with other elements to give away the electron.
Examples of alkali electrons include:
- Lithium
- Sodium
- Potassium etc
In conclusion therefore, alkali metals are highly reactive and soft and so the element described above is most likely an alkali metal.
<em>Find out more at brainly.com/question/18722874.</em>
The central force acting on the electron as it revolves in a circular orbit is
.
The given parameters;
- <em>speed of electron, v = 2.2 x 10⁶ m/s</em>
- <em>radius of the circle, r = 4.63 x 10⁻¹¹ m</em>
<em />
The central force acting on the electron as it revolves in a circular orbit is calculated as follows;
![F = \frac{M_e v^2}{r} \\\\](https://tex.z-dn.net/?f=F%20%3D%20%5Cfrac%7BM_e%20v%5E2%7D%7Br%7D%20%5C%5C%5C%5C)
where;
is mass of electron = 9.11 x 10⁻³¹ kg
![F = \frac{(9.11 \times 10^{-31}) \times(2.2\times 10^6)^2 }{4.63 \times 10^{-11}} \\\\F = 9.52 \times 10^{-8} \ N](https://tex.z-dn.net/?f=F%20%3D%20%5Cfrac%7B%289.11%20%5Ctimes%2010%5E%7B-31%7D%29%20%5Ctimes%282.2%5Ctimes%2010%5E6%29%5E2%20%7D%7B4.63%20%5Ctimes%2010%5E%7B-11%7D%7D%20%5C%5C%5C%5CF%20%3D%209.52%20%5Ctimes%2010%5E%7B-8%7D%20%5C%20N)
Thus, the central force acting on the electron as it revolves in a circular orbit is
.
Learn more about centripetal force here:brainly.com/question/20905151
A chemical property of gasoline is that it will burn in air. Gasoline is a substance that is used to power automobiles. Gasoline will oxidize
in air which means that it reacts with oxygen in air. Hope this answers the question. Have a nice day.