Frequency, υ = 2.09 Hz
We know that time period, T = 1/υ
∴ T = 1 ÷ 2.09
⇒ T = 0.4784 seconds
The answer to this would be 12N
I would say that I and IV because summer is I and fall is IV
Answer : The chemical formula for the molecule is 
Explanation :
Molecular formula : It is the chemical formula which depicts the actual number of atoms of each element present in the compound.
Structural formula : It is a formula in which the lines are used between the bonded atoms and the atoms are also shown in the structural formula.
In the structural formula, the lines are used between the atoms.
As per given information of compound we conclude that, there are 4 carbon atoms, 9 hydrogen atoms and 2 oxygen atoms.
Thus, the chemical formula for the given molecule will be,
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Full question:</u></h3>
Choose all the answers that apply.
Metamorphic rock can change into _____.
A) sedimentary rock
B) metamorphic rock
C) magma
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Answer:</u></h3>
Metamorphic rock can change into sedimentary rock
, magma.
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Explanation:</u></h3>
Metamorphic rocks arise from heat and pressure transferring the primary or origin rock into an entirely distinct rock. The origin rock can be unless sedimentary, igneous, or indeed different metamorphic rock. Metamorphic rock can transform toward the igneous or sedimentary rock.
Metamorphic rocks radical melt to enhance magma. When a volcano explodes, magma runs external of it. If there is too much heat or pressure, the rock will dissolve and convert magma. The term "metamorphic" originates from Greek and indicates "To Transfer Form".
