Answer:
![F = ika^2](https://tex.z-dn.net/?f=F%20%3D%20ika%5E2)
Explanation:
As we know that loop is placed in YZ plane and magnetic field is along x direction
So here net force on the side of the loop which lies along Y axis is given as
![F_1 = i (\vec L \times \vec B)](https://tex.z-dn.net/?f=F_1%20%3D%20i%20%28%5Cvec%20L%20%5Ctimes%20%5Cvec%20B%29)
here we know that on Y axis z = 0
so B = 0
so we have
![F_1 = 0](https://tex.z-dn.net/?f=F_1%20%3D%200)
now on the opposite side we have z = a
so magnetic field is given as
![B = ka](https://tex.z-dn.net/?f=B%20%3D%20ka)
so force on that side is given as
![F = i(\vec L \times \vec B)](https://tex.z-dn.net/?f=F%20%3D%20i%28%5Cvec%20L%20%5Ctimes%20%5Cvec%20B%29)
![F = i(a)(ka) sin90](https://tex.z-dn.net/?f=F%20%3D%20i%28a%29%28ka%29%20sin90)
![F_2 = ika^2](https://tex.z-dn.net/?f=F_2%20%3D%20ika%5E2)
so net force on the loop is given as
![F = F_1 + F_2](https://tex.z-dn.net/?f=F%20%3D%20F_1%20%2B%20F_2)
![F = ika^2](https://tex.z-dn.net/?f=F%20%3D%20ika%5E2)
Catalysts
a catalyst is something added to a reaction that speeds it up (or lowers the activation energy)
increasing the temp would speed up the whole reaction but not lower the activation energy
so B.
Answer:
sofa
Explanation:
because the sofa is heavy and the amount of friction is high due to the amount of opposite friction is pushing it back
Gap junctions in the intercalated discs allow impulses to be spread across the heart more quickly. This is because gap junctions allow particles/signals to pass through, thus making cells with gap junctions more able to interact.
One more thing—you posted this in the physics section rather than biology.
I have two (2) brilliant ideas:
1). Inside the metal that the body of the car is made of, and also between the two sheets of glass that the windows are made of, install a thin layer of material that absorbs RF (radio-wave) energy . . . like the material in the glass window of your microwave oven. Then, no radio waves from the cellular base station can get INTO the car, and no radio waves from your phone can get OUT of the car. The phone can't make a connection to the cellular network, you can't make or receive calls, and you can't connect to Instagram or Brainly, so you might as well just turn it off and save your battery until next time you're outside your car.
2). Somewhere inside the car, like under the dash or in the glove box, install a teeny tiny radio receiver that can recognize the signals coming OUT of your phone. Connect it to the car's electrical system so that when it hears signals from phones inside the car, it it shuts down the car's motor so you can't start or drive. The car only works when phones inside the car are either turned off or in Airplane Mode.
My ideas are so brilliant that I really should patent them, or copyright them, or whatever you do so that other people have to pay you to use your idea. But if you want to use them, that's OK. Just go ahead. I won't mind.