Protects us from the Suns rays
Answer:
t = 16,1 minutes
Explanation:
For a battery of 6,45V the 90,0% of its voltage is:
6,45V×0,900 = 5,805V
The voltage decreasing of the batteries could be written as:
Where t is discharge time .
As initial voltage is 6,45V and Vt is 5,805V:
<em>t = 16,1 minutes</em>
<em></em>
I hope it helps!
B Eukaryotes are all multicellular
Answer:
Explanation:
No not always but it is more likely they will
The nature of ions formed by different atoms is as follows:
- Metal atoms form positively-charged ions
- Non-metal atoms form negatively-charged ions
<h3>What are ions?</h3>
Ions are substances which are formed when neutral atoms gain or lose electrons.
There are two types of ions based on the charge the ion carries;
- anions - which are negatively-charged
- cations - which are positively-charged
The nature of the ions formed by different atoms depend on whether the atoms are atoms of metals or atoms of non-metals.
Metal atoms form positively-charged ions by the loss of one or more electrons as illustrated below:
where; M is a metal atom, M⁺ is a metal ion, and e⁻ is an electron.
Non-metal atoms form negatively-charged ions by the gain of one or more electrons as illustrated below:
where; N is a non-metal atom, N⁻ is a non-metal ion, and e⁻ is an electron.
In conclusion, the nature of ions formed by atoms depends on the nature of the atom, whether they are metallic or non-metallic atoms.
Learn more about ions at: brainly.com/question/14511468
#SPJ1