An atom with two valence electrons in the periodic table belongs to the alkaline earth metals or 2nd group. The element with atomic number 17 is chlorine with 7 valence electrons. Ionic compounds are formed between the atoms of elements with high electronegativity difference. More the difference, more they are likely to form ionic bond.
Thus in this case, the most likely formed ionic compound will be with alkaline earth metal with high electropositivity. The highest electropositive element in group 2 is barium thus, ionic compound formed will be ![BaCl_{2}](https://tex.z-dn.net/?f=BaCl_%7B2%7D)
In
, barium will donate its two electrons, one to each chlorine atom. The resultant compound will be ionic in which all the atom have complete octets.
Answer:
Ping Pong ball move at velocity 160.4 m/s
Explanation:
given data
mass m1 = 7 kg
velocity v1 = 3 m/s
mas m2 = 2.45 g = 2.45 ×
kg
same kinetic energy
to find out
How fast Ping Pong ball move (v2)
solution
we know same KE
so
...........1
so v2 will be
v2 =
.............2
put here value in equation 2 we get v2
v2 =
v2 = 160.4
so Ping Pong ball move at velocity 160.4 m/s
An externality, sometimes called a spillover, occurs when an exchange between a buyer and seller has an impact on a third party who is not part of the exchange. Externalities can be positive or negative
<h3>What are Externalities?</h3>
Externalities refers to situations when the effect of production or consumption of goods and services imposes costs or benefits on others which are not reflected in the prices charged for the goods and services being provided.
Externalities Private markets offer an efficient way to put buyers and sellers together and determine what goods are produced, how they are produced, and who gets them. The principle that voluntary exchange benefits both buyers and sellers is a fundamental building block of the economic way of thinking. But what happens when a voluntary exchange affects a third party who is neither the buyer nor the seller?
Externalities can be negative or positive. If you hate country music, then having it waft into your house every night would be a negative externality. If you love country music, then what amounts to a series of free concerts would be a positive externality.
Learn more about externalities here:
brainly.com/question/24233609
#SPJ1
<em>projectile can only follow the straight line path when it is launched upward straightly so the correct option is <u>90 degree with respect to horizontal x -axis ..:)</u></em>
Answer:
The magnitude of the current in the circuit is 0.01159 A.
Explanation:
Given that,
Capacitor ![C = 0.2\mu F](https://tex.z-dn.net/?f=C%20%3D%200.2%5Cmu%20F)
Inductance ![L=3 mH](https://tex.z-dn.net/?f=L%3D3%20mH)
Voltage V = 2 V
We need to calculate the energy when the capacitor is charged
Using formula of energy
![E=\dfrac{1}{2}\dfrac{q^2}{C}](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B1%7D%7B2%7D%5Cdfrac%7Bq%5E2%7D%7BC%7D)
![E=\dfrac{1}{2}\times\dfrac{C^2V^2}{C}](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B1%7D%7B2%7D%5Ctimes%5Cdfrac%7BC%5E2V%5E2%7D%7BC%7D)
![E=\dfrac{1}{2}\timesCV^2](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B1%7D%7B2%7D%5CtimesCV%5E2)
Put the value into the formula
![E=\dfrac{1}{2}\times0.2\times10^{-6}\times4](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B1%7D%7B2%7D%5Ctimes0.2%5Ctimes10%5E%7B-6%7D%5Ctimes4)
![E=4\times10^{-7}](https://tex.z-dn.net/?f=E%3D4%5Ctimes10%5E%7B-7%7D)
When the capacitor is discharged
Using formula of energy
![E=\dfrac{1}{2}LI^2](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B1%7D%7B2%7DLI%5E2)
![4\times10^{-7}=\dfrac{1}{2}\times3\times10^{-3}\times I^2](https://tex.z-dn.net/?f=4%5Ctimes10%5E%7B-7%7D%3D%5Cdfrac%7B1%7D%7B2%7D%5Ctimes3%5Ctimes10%5E%7B-3%7D%5Ctimes%20I%5E2)
![I^2=\dfrac{2\times4\times10^{-7}}{3\times10^{-3}}](https://tex.z-dn.net/?f=I%5E2%3D%5Cdfrac%7B2%5Ctimes4%5Ctimes10%5E%7B-7%7D%7D%7B3%5Ctimes10%5E%7B-3%7D%7D)
![I=\sqrt{0.00027}](https://tex.z-dn.net/?f=I%3D%5Csqrt%7B0.00027%7D)
![I=0.0164\ A](https://tex.z-dn.net/?f=I%3D0.0164%5C%20A)
rms value of current,
![I_{rms}=\dfrac{I_{0}}{\sqrt{2}}](https://tex.z-dn.net/?f=I_%7Brms%7D%3D%5Cdfrac%7BI_%7B0%7D%7D%7B%5Csqrt%7B2%7D%7D)
![I_{rms}=\dfrac{0.0164}{\sqrt{2}}](https://tex.z-dn.net/?f=I_%7Brms%7D%3D%5Cdfrac%7B0.0164%7D%7B%5Csqrt%7B2%7D%7D)
![I_{rms}=0.01159\ A](https://tex.z-dn.net/?f=I_%7Brms%7D%3D0.01159%5C%20A)
Hence, The magnitude of the current in the circuit is 0.01159 A.