Answer:
The right option is the 'polar' option.
Explanation:
- The right answer cannot be ionic as sharing of electrons is mentioned. Ionic bonds don't involve the sharing of electrons
- Polarity in terms of bonding is used to describe the situation when one of the atoms involved in the sharing of electrons is more electronegative than the other and pulls the shared electrons more towards itself, thereby inducing a slight positive charge on the other atom and gaining a slight negative charge itself.
- In the absence of this kind of scenario in a covalent bonding that sharing occurs, then it is described as non polar. The two atoms that participate in the sharing of electrons here have similar electronegativities and thereby leave the shared electrons at the middle.
- Dipolar compound is used to refer to organic molecules that are essentially neutral but carry a positive & negative charge in one of their various existence forms.
Let e be the charge of the electron.
Then F1 + F2 = 0
F1 = K (-1.5) * (-e) /r1^2
F2 = K (15) * (-e) /r2^2
(-1.5) * /r1^2 + (15) /r2^2 = 0
-1 /r1^2 + (10) /r2^2 = 0
[r2/r1]^2 = 10
[R2/r1] = ± 3.162
r2 = ± 3.162 r1.
Given r1 + r2 = √ [1^2 + 0.5^2] = 1.1180-----1
Also tan θ = 0.5 => θ = 26.57°
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Substituting r2 = 3.162 r1 in 1
4.162 r1=1.1180
r1 = 0.2686 m
x coordinate = r1 cos θ = 0.2403 m
y coordinate = r1 sin θ = 0.1201m
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Substituting r2 = - 3.162 r1 in 1
-2.162 r1=1.1180
r1 = -0.5171m
x coordinate = r1 cos θ = -0.4625m
y coordinate = r1 sin θ = -0.2313m
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Answer:
1398.12 N
Explanation:
We define the x-axis in the direction parallel to the movement of the truck on and the y-axis in the direction perpendicular to it.
x-components of the ropes forces
T₁x = 615N*cos31°=527.1579 N :Tension in direction x of the rope of the car 1
T₂x= 961 N*cos25°=870.96 N :Tension in direction x of the rope of the car 2
Net forward force exerted on the truck in the direction it is headed (Fnx)
Fnx = T₁x + T₂x
Fnx = 527.1579 N + 870.96 N
Fnx = 1398.12 N
To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
The answer is so we have more oxygen and because loggers are cutting down more trees every day and the more they cut the less air we have
