Answer:
Net force= 14 units
The object is unbalanced
Explanation:
The net force refers to the sum of all forces applied to an object. However, the direction of force applied determine the net force. In this question, a boy and girl is pulling a heavy crate at the same time.
This means that the force is in the same direction, hence, the net force will be:
F(N) = 7 + 7 = 14 unit
However, since the pull is occuring at the same direction. This means that the object has a net force, therefore, will move in a particular direction. This means that the OBJECT IS UNBALANCED
We can solve for the power dissipated by the oven on the given values of voltage which is 120 volts and current which is equal to 12.5 amperes.
The formula for Power dissipated is P=V*I where "v" for the voltage and "i" for the current.
P=120*12.5
P=1500 watts
The answer is 1500 watts.
Answer:
The net magnetic field ta the center of square is
.
Explanation:
Current, I = 12 A , side ,a = 10 cm = 0.1 m
Let the magnetic field due to the one side is B.
The magnetic field is given by
![B = \frac{\mu o}{4\pi}\times \frac{I}{r}\times \left (Sin A +Sin B \right )\\\\B = 10^{-7}\times \frac{12}{0.05}\times \left ( sin 45 + sin 45 \right )\\\\B = 3.4\times 10^{-5} T](https://tex.z-dn.net/?f=B%20%3D%20%5Cfrac%7B%5Cmu%20o%7D%7B4%5Cpi%7D%5Ctimes%20%5Cfrac%7BI%7D%7Br%7D%5Ctimes%20%5Cleft%20%28Sin%20A%20%2BSin%20B%20%20%5Cright%20%29%5C%5C%5C%5CB%20%3D%2010%5E%7B-7%7D%5Ctimes%20%5Cfrac%7B12%7D%7B0.05%7D%5Ctimes%20%5Cleft%20%28%20sin%2045%20%2B%20%20sin%2045%20%20%5Cright%20%29%5C%5C%5C%5CB%20%3D%203.4%5Ctimes%2010%5E%7B-5%7D%20T)
Net magnetic field at the center of the square is
B' = 4 B
![B'= 4\times 3.4\times 10^{-5}\\\\B' = 1.36\times10^{-4} T](https://tex.z-dn.net/?f=B%27%3D%204%5Ctimes%203.4%5Ctimes%2010%5E%7B-5%7D%5C%5C%5C%5CB%27%20%3D%201.36%5Ctimes10%5E%7B-4%7D%20T)