Helping verbs come before the main verb, the main verb in the sentence is repair therefor the helping verb would be could.
The elastic potential energy stored in the spring is
= (1/2) x (spring constant) x (distance stretched or compressed)²
If all four springs are stretched or compressed the SAME distance
from their equilibria, then the potential energy is just proportional
to the spring constant.
From greatest to least stored energy is exactly the same list as
from greatest to least spring constant:
X . . . . . 35
W . . . . . 24
Y . . . . . 22
Z . . . . . 15
7 and a half hours because if you multiply 120 by 8 you get 960 and if you multiply 120 by 7 you get 840. So it’ll take 7 full hours and 30 minutes to reach 950 km. Hope this helps and I’m sorry if it’s wrong I did my best :)
False
It is impossible to get infinite energy let alone to put it inside one battery
Answer:
The magnitude of the magnetic field at the origin is
.
Explanation:
Given :
50-A wire is in the x-z plane and is 5 m from the z axis.
Also , 40-A wire is in the y-z plane and is 4 m from the z axis.
Now , since both the wire are perpendicular to each other .
Therefore , magnetic field are also perpendicular to each other .
Magnetic field at origin due to wire 1 is :
![B_1=\dfrac{\mu_oI_1}{2\pi R_1}\\\\B_1=\dfrac{(50)\mu_o}{2\pi( 5)}\\\\B_1=\dfrac{5\mu_o}{\pi}](https://tex.z-dn.net/?f=B_1%3D%5Cdfrac%7B%5Cmu_oI_1%7D%7B2%5Cpi%20R_1%7D%5C%5C%5C%5CB_1%3D%5Cdfrac%7B%2850%29%5Cmu_o%7D%7B2%5Cpi%28%205%29%7D%5C%5C%5C%5CB_1%3D%5Cdfrac%7B5%5Cmu_o%7D%7B%5Cpi%7D)
Magnetic field at origin due to wire 2 is :
![B_2=\dfrac{\mu_oI_2}{2\pi R_2}\\\\B_2=\dfrac{(40)\mu_o}{2\pi( 4)}\\\\B_2=\dfrac{4\mu_o}{\pi}](https://tex.z-dn.net/?f=B_2%3D%5Cdfrac%7B%5Cmu_oI_2%7D%7B2%5Cpi%20R_2%7D%5C%5C%5C%5CB_2%3D%5Cdfrac%7B%2840%29%5Cmu_o%7D%7B2%5Cpi%28%204%29%7D%5C%5C%5C%5CB_2%3D%5Cdfrac%7B4%5Cmu_o%7D%7B%5Cpi%7D)
Now , therefore net magnetic field is :
![B=\sqrt{B_1^2+B_2^2}\\\\B=\sqrt{(\dfrac{5\mu_o}{\pi})^2+(\dfrac{4\mu_o}{\pi})^2}\\\\B=\dfrac{\sqrt{41}\mu_o}{\pi}](https://tex.z-dn.net/?f=B%3D%5Csqrt%7BB_1%5E2%2BB_2%5E2%7D%5C%5C%5C%5CB%3D%5Csqrt%7B%28%5Cdfrac%7B5%5Cmu_o%7D%7B%5Cpi%7D%29%5E2%2B%28%5Cdfrac%7B4%5Cmu_o%7D%7B%5Cpi%7D%29%5E2%7D%5C%5C%5C%5CB%3D%5Cdfrac%7B%5Csqrt%7B41%7D%5Cmu_o%7D%7B%5Cpi%7D)
Putting value of ![\mu_o=4\pi \times 10^{-7}\ H/m](https://tex.z-dn.net/?f=%5Cmu_o%3D4%5Cpi%20%5Ctimes%2010%5E%7B-7%7D%5C%20H%2Fm)
We get ,
![B=\sqrt{41}\times 4\times 10^{-7}\\B=2.56\times 10^{-6}\ T](https://tex.z-dn.net/?f=B%3D%5Csqrt%7B41%7D%5Ctimes%204%5Ctimes%2010%5E%7B-7%7D%5C%5CB%3D2.56%5Ctimes%2010%5E%7B-6%7D%5C%20T)
Therefore, the magnitude of the magnetic field at the origin is
.