Fast Communication, can be used for good and can be used for bad hackers.
The resistance is 4 times the resistance of the first wire. the formula is R = p*l/A with p being resistivity, l length and A area. So if you double length and half area, which botv result in more resistance, you get p*2/0.5 or 4 (p can be abandoned because it is the same. We take standard length and area as 1)
Answer:
Na20
Explanation:
Compound having oppositely charged ions are considered as ionic compounds.
Ionic compounds are formed when complete transfer of electrons takes place between the atoms forming a bond. This bond is formed between a metal and a non-metal or a polyatomic cation and an non-metal or a metal and a polyatomic anion. For Example: etc..
Covalent compounds are formed when sharing of electrons takes place between the atoms forming a bond. This bond is formed between two non-metals. For Example: etc..
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I think everytime they swim away, the water pushes the enemy back, which makes the octopus go faster. Every action has an equal and opposite reaction. Hope this helps.
Answer:
245.45km in a direction 21.45° west of north from city A
Explanation:
Let's place the origin of a coordinate system at city A.
The final position of the airplane is given by:
rf = ra + rb + rc where ra, rb and rc are the vectors of the relative displacements the airplane has made. If we separate this equation into its x and y coordinates:
rfX = raX+ rbX + rcX = 175*cos(30)-150*sin(20)-190 = -89.75km
rfY = raY + rbY + rcT = 175*sin(30)+150*cos(20) = 228.45km
The module of this position is:
![rf = \sqrt{rfX^2+rfY^2} = 245.45km](https://tex.z-dn.net/?f=rf%20%3D%20%5Csqrt%7BrfX%5E2%2BrfY%5E2%7D%20%3D%20245.45km)
And the angle measure from the y-axis is:
![\alpha =atan(rfX/rfY) = 21.45\°](https://tex.z-dn.net/?f=%5Calpha%20%3Datan%28rfX%2FrfY%29%20%3D%2021.45%5C%C2%B0)
So the answer is 245.45km in a direction 21.45° west of north from city A