True or false. when objects collide , some momentum is lost
2 answers:
You might be interested in
Answer:
Formal charge for the first resonance structure of NO₂; first Oxygen = 0, N = +1, second Oxygen = -1
Formal charge for the second resonance structure of NO₂; first Oxygen = -1, N = +1, second Oxygen = 0
Explanation:
The formal charge of an atom in a molecule is the assumed charge the atom would have if the electrons in the bonds are redistributed evenly between the atoms.
Formal charge = valence electrons - (non-bonding electrons) - (bonding electrons / 2).
For NO₂ molecule, the formal charges for the atoms are as follows;
First Oxygen atom = 6 - 4 - 4/2 = 0
For Nitrogen = 5 - 1 - 6/2 = +1
For the second Oxygen atom = 6 - 6 - 2/2 = -1.
Overall charge = 0 + (+1) + (-1) = 0
For the second resonance structure,
First Oxygen atom = 6 - 6 - 2/2 = -1
For Nitrogen = 5 - 1 - 6/2 = +1
For the second Oxygen atom = 6 - 4 - 4/2 = 0
Overall charge = (-1) + (+1) + (0) = 0
Note: Where resonance structures for atoms or ions exist, the formal charges of each of the respective atoms or ions are calculated according.
Answer:
113.58 m
Explanation:
Range = Maximum Height
tan θ = 4
θ = 76 degree
Let u be the velocity of projection
K = 1/2 x m x u^2
1150 = 0.5 x 0.97 x u^2
u = 48.7 m/s
Range = [tex]\frac{u^{2}Sin2\theta }{g}
R = (48.7 x 48.7 x 2 x Sin 76 x Cos 76) / 9.8 = 113.58 m