! . Which are the expected types and total numbers of atoms in the reactants of this chemical reaction?? 8SO2
2 answers:
Answer : The correct option is, (D) 8 sulfur atoms and 16 oxygen atoms
Explanation :
The given molecule is,
The coefficient present in front of a molecule tell us about that how many molecules or atoms present in the chemical equation.
Molecule : It is the smallest particle in the chemical compound or chemical element that has the same chemical properties of that compound or element.
The given molecule is made up of two elements that are sulfur and oxygen.
In the given molecule, there are 8 sulfur atoms and 16 oxygen atoms.
Hence, the correct option is, (D) 8 sulfur atoms and 16 oxygen atoms
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Answer:
N₂=20.05 rpm
Explanation:
Given that
R= 19 cm
I=0.13 kg.m²
N₁ = 24.2 rpm
ω₁= 2.5 rad/s
m= 173 g = 0.173 kg
v=1.2 m
Initial angular momentum L₁
L₁ = Iω₁ - m v r ( negative sign because bird coming opposite to motion of the wire motion)
Final linear momentum L₂
L₂= I₂ ω₂
I₂ = I + m r²
The is no any external torque that is why angular momentum will be conserve
L₁ = L₂
Iω₁ - m v r = I₂ ω₂
Iω₁ - m v r = ( I + m r²) ω₂
Now by putting the all values
Iω₁ - m v r = ( I + m r²) ω₂
0.13 x 2.5 - 0.173 x 1.2 x 0.19 = ( 0.13 + 0.173 x 0.19²) ω₂
0.325 - 0.0394 = 0.136 ω₂
ω₂ = 2.1 rad/s
N₂=20.05 rpm