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quickestlearner8562
18.12.2020 •
Physics
You jump straight up in the air and land 0.36 seconds later. What distance did you jump? m
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Ответ:
Answer with Explanation:
We are given that
Electric field,E=90.5V/m
We have to find the magnetic field strength,the energy density and the power flower per unit area.
Magnetic field strength=![B=\frac{E}{c}](/tpl/images/0572/4742/8a100.png)
Where![c=3\times 10^8 m/s](/tpl/images/0572/4742/533fa.png)
Using the formula
Energy per unit volume,![u=\frac{1}{2}\epsilon_0 E^2+\frac{1}{2}\epsilon_0 B^2c^2](/tpl/images/0572/4742/0c1a3.png)
Where![\epsilon_0=8.85\times 10^{-12}](/tpl/images/0572/4742/2bb9c.png)
Using the formula
Power flow per unit area=![S=\frac{BE}{\mu_0}](/tpl/images/0572/4742/bcf7d.png)
Where![\mu_0=4\pi\times 10^{-7}](/tpl/images/0572/4742/fc66a.png)