Answer:
Electrical Energy
Explanation:
There are a variety of chemical and mechanical devices that are called batteries, although they operate on different physical principles. A battery for the purposes of this explanation will be a device that can store energy in a chemical form and convert that stored chemical energy into electrical energy when needed.
Answer:
![Area = \frac{1}{2}|x_1(y_2 - y_3)+x_2(y_3 - y_1)+x_3(y_1 - y_2)|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7Cx_1%28y_2%20-%20y_3%29%2Bx_2%28y_3%20-%20y_1%29%2Bx_3%28y_1%20-%20y_2%29%7C)
![Area = 2\ units^2](https://tex.z-dn.net/?f=Area%20%3D%202%5C%20units%5E2)
Explanation:
Given
![A = (x_1,y_1)](https://tex.z-dn.net/?f=A%20%3D%20%28x_1%2Cy_1%29)
![B = (x_2,y_2)](https://tex.z-dn.net/?f=B%20%3D%20%28x_2%2Cy_2%29)
![C = (x_3,y_3)](https://tex.z-dn.net/?f=C%20%3D%20%28x_3%2Cy_3%29)
Required
Determine the area
The area of a triangle is :
![Area = \frac{1}{2}|A_x(B_y - C_y) + B_x(C_y - A_y) + C_x(A_y - B_y)|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7CA_x%28B_y%20-%20C_y%29%20%2B%20B_x%28C_y%20-%20A_y%29%20%2B%20C_x%28A_y%20-%20B_y%29%7C)
By substituting values for the x and y coordinates of A, B and C;
We have:
![Area = \frac{1}{2}|x_1(y_2 - y_3)+x_2(y_3 - y_1)+x_3(y_1 - y_2)|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7Cx_1%28y_2%20-%20y_3%29%2Bx_2%28y_3%20-%20y_1%29%2Bx_3%28y_1%20-%20y_2%29%7C)
So:
For instance
![A = (0,3)](https://tex.z-dn.net/?f=A%20%3D%20%280%2C3%29)
![B= (2,1)](https://tex.z-dn.net/?f=B%3D%20%282%2C1%29)
![C = (2,3)](https://tex.z-dn.net/?f=C%20%3D%20%282%2C3%29)
The area is:
![Area = \frac{1}{2}|0(1-3) + 2(3-3) + 2(3-1)|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7C0%281-3%29%20%2B%202%283-3%29%20%2B%202%283-1%29%7C)
![Area = \frac{1}{2}| 2*0 + 2*2|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7C%202%2A0%20%2B%202%2A2%7C)
![Area = \frac{1}{2}| 0 + 4|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7C%200%20%2B%204%7C)
![Area = \frac{1}{2}|4|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7C4%7C)
![Area = \frac{1}{2} * 4](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%2A%204)
![Area = 2\ units^2](https://tex.z-dn.net/?f=Area%20%3D%202%5C%20units%5E2)
Answer:
Molecules are made up of atoms and are the smallest parts of compounds that still have properties. Atoms are the smallest parts of elements that still have properties.
Explanation:
Answer:
0
Explanation:
Since HI is a strong acid, the amoung of Hydrogen ions produced by it will be the same molar as the reactant. The negative log of the concentration will reveal that the pH is 0.