Answer:
![4.5\cdot 10^9 N](https://tex.z-dn.net/?f=4.5%5Ccdot%2010%5E9%20N)
Explanation:
The electric force between two charged objects is given by:
![F=k\frac{q_1 q_2}{r^2}](https://tex.z-dn.net/?f=F%3Dk%5Cfrac%7Bq_1%20q_2%7D%7Br%5E2%7D)
where:
k is the Coulomb's constant
q1 and q2 are the charges of the two objects
r is their separation
In this problem:
q1 = 2.0 C
q2 = 1.0 C
r = 2 m
So, the electric force is
![F=(9\cdot 10^9 Nm^2C^{-2})\frac{(2.0 C)(1.0 C)}{(2 m)^2}=4.5\cdot 10^9 N](https://tex.z-dn.net/?f=F%3D%289%5Ccdot%2010%5E9%20Nm%5E2C%5E%7B-2%7D%29%5Cfrac%7B%282.0%20C%29%281.0%20C%29%7D%7B%282%20m%29%5E2%7D%3D4.5%5Ccdot%2010%5E9%20N)
Answer with Explanation:
Kailangan nating sumunod sa batas dahil<em> ito'y para sa ating kapakanan at kaligtasan.</em> Ginawa ang batas <em>upang maging mapayapa ang ating pamayanan</em> kaya tungkulin nating sundin ito. Pinipigilan ng batas na abusuhin ang ating mga karapatan. Sinisiguro nito na <em>ligtas tayong maninirahan nang walang takot</em> at <em>patuloy nating itataguyod ang ating buhay nang walang inaapakang tao.</em> Dahil dito, nararapat lang na kilalanin ng tao ang batas at taos-pusong sundin ito.
Voltage is additive in series. The voltage drop across each load is added to equal the total voltage.
Answer:
Explanation:
Generally, length of vector means the magnitude of the vector.
So, given a vector
R = a•i + b•j + c•k
Then, it magnitude can be caused using
|R|= √(a²+b²+c²)
So, applying this to each of the vector given.
(a) 2i + 4j + 3k
The length is
L = √(2²+4²+3²)
L = √(4+16+9)
L = √29
L = 5.385 unit
(b) 5i − 2j + k
Note that k means 1k
The length is
L = √(5²+(-2)²+1²)
Note that, -×- = +
L = √(25+4+1)
L = √30
L = 5.477 unit
(c) 2i − k
Note that, since there is no component j implies that j component is 0
L = 2i + 0j - 1k
The length is
L = √(2²+0²+(-1)²)
L = √(4+0+1)
L = √5
L = 2.236 unit
(d) 5i
Same as above no is j-component and k-component
L = 5i + 0j + 0k
The length is
L = √(5²+0²+0²)
L = √(25+0+0)
L = √25
L = 5 unit
(e) 3i − 2j − k
The length is
L = √(3²+(-2)²+(-1)²)
L = √(9+4+1)
L = √14
L = 3.742 unit
(f) i + j + k
The length is
L = √(1²+1²+1²)
L = √(1+1+1)
L = √3
L = 1.7321 unit