To solve this problem we need to use the emf equation, that is,
![E=m\frac{dI}{dT}](https://tex.z-dn.net/?f=E%3Dm%5Cfrac%7BdI%7D%7BdT%7D)
Where E is the induced emf
I the current in the first coil
M the mutual inductance
Solving for a)
![M=\frac{E}{\frac{dI}{dT}}\\M=\frac{1.6*10^{-3}}{0.245}=6.53*10^{-3}H](https://tex.z-dn.net/?f=M%3D%5Cfrac%7BE%7D%7B%5Cfrac%7BdI%7D%7BdT%7D%7D%5C%5CM%3D%5Cfrac%7B1.6%2A10%5E%7B-3%7D%7D%7B0.245%7D%3D6.53%2A10%5E%7B-3%7DH)
Solving for b) we need the FLux through each turn, that is
![\Phi=\frac{MI}{N}](https://tex.z-dn.net/?f=%5CPhi%3D%5Cfrac%7BMI%7D%7BN%7D)
Where N is the number of turns in the second coil
![\Phi=\frac{6.53*10^{-3}*1.25}{22}=3.71*10^{-4}Wb](https://tex.z-dn.net/?f=%5CPhi%3D%5Cfrac%7B6.53%2A10%5E%7B-3%7D%2A1.25%7D%7B22%7D%3D3.71%2A10%5E%7B-4%7DWb)
This answer of the strength and directions of the magnetic field is a
Answer:
0.103 m/s to the south
Explanation:
The total momentum of the launcher+ball system must be conserved before and after the launch, so we can write:
![p_i = p_f\\0 = m_L v_L + m_B v_B](https://tex.z-dn.net/?f=p_i%20%3D%20p_f%5C%5C0%20%3D%20m_L%20v_L%20%2B%20m_B%20v_B)
where
is the total initial momentum (before the launch)
is the mass of the launcher
is the velocity of the launcher after the launch
is the mass of the ball
is the velocity of the ball after the launch (we take the north direction as positive)
Solving for
, we find
![v_L = -\frac{m_B v_B}{m_L}=-\frac{(0.057 kg)(+36 m/s)}{20 kg}=-0.103 m/s](https://tex.z-dn.net/?f=v_L%20%3D%20-%5Cfrac%7Bm_B%20v_B%7D%7Bm_L%7D%3D-%5Cfrac%7B%280.057%20kg%29%28%2B36%20m%2Fs%29%7D%7B20%20kg%7D%3D-0.103%20m%2Fs)
and the negative sign means that the direction is south.
The cost of developing thermonuclear power with plasmabe defended because D. It can provide an inexpensive power source.
<h3>How did the
cost of developing t
hermonuclear power defended?</h3>
The cost of developing thermonuclear power defended becvause we can see in the paragraph how it was told that the generation of ths power can be donee through the understanding of the occurrence of plasmain nature,
It should be noted that this thermonuclear power with plasmabe posses the characteristics which make it to exist in the ionosphere, and it can be felt in the flames as well; as in the chemical and nuclearexplosions.
In conclusion the power can be seen as an inexpensive source power because the p[roduction of this power cn be found in most of the thing that can be found around us as discused above.
Therefore, option D is correct.
Read more about cost at:
brainly.com/question/25109150
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