Mass is described like this: Any thing that takes up space
"Stored electrical energy is converted to mechanical energy" is the one energy conversion among the choices given in the question that <span>occurs when a battery powered car rolls across the floor. The correct option among all the options that are given in the question is the second option or option "B".</span>
Answer is: there is 3,36 micrograms of iron in <span>sample of Greg's blood.
</span>m(Fe) = 42 mcg(micrograms).
V(Fe) = 1 dL = 1 dL · 100 mL/1dL.
V(Fe) = 100 mL.
Make proportion: m(Fe) : 8 mL = 42 mcg : 100 mL.
100 mL · m(Fe) = 8 mL · 42 mcg.
m(Fe) = 336 mL·mcg ÷ 100 mL.
m(Fe) = 3,36 mcg.
C) lithium; 3
Explanation:
Considering the chart describing the element. According to the chart, the element is lithium with an atomic number of 3.
- Atomic numbers are used on the periodic table to arrange elements in their proper place.
- Atomic number is the number of protons in an atom.
- This number is unique for every atom.
- From the described chart, we see that the atom described is Lithium.
- The atomic number of neon is 10, boron is 5.
- Unless otherwise stated or shown, it can be nitrogen 7.
learn more:
Periodic table brainly.com/question/8543126
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Without its atmosphere, Earth would be
bombarded by meteorites, similar to mars, relatively lifeless. Without the atmosphere objects can just enter the atmosphere and cause serious harm to us, but with the atmosphere it basically reduces damage and shrinks it to size. Without the atmosphere earth would be like mars since it doesn't have a atmosphere. Without the atmosphere earth would be relatively lifeless since without air, us humans cant breathe so we will not survive.
