I think it is A <span>High levels of muscular fitness can improve your self-image and improve or prevent chronic diseases such as diabetes, osteoporosis, and cardiovascular disease.</span>
Answer:
The amount of gravitational potential energy an object has depends on its height and mass. The heavier the object and the higher it is above the ground, the more gravitational potential energy it holds. Gravitational potential energy increases as weight and height increases.
Explanation:
I think it is d if not then im sorry
Answer:
The magnitude of the electric field is 5.75 N/C towards positive x- axis.
Explanation:
Given that,
Point charge at origin = 2 nC
Second charge = 5 nC
Distance at x axis = 8 m
We need to calculate the electric field at the point x = 2 m
Using formula of electric field
![E=\dfrac{1}{4\pi\epsilon_{0}}(\dfrac{q_{1}}{r_{1}^2}+\dfrac{q_{2}}{r_{2}^2})](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B1%7D%7B4%5Cpi%5Cepsilon_%7B0%7D%7D%28%5Cdfrac%7Bq_%7B1%7D%7D%7Br_%7B1%7D%5E2%7D%2B%5Cdfrac%7Bq_%7B2%7D%7D%7Br_%7B2%7D%5E2%7D%29)
Put the value into the formula
![E=9\times10^{9}\times(\dfrac{2\times10^{-9}}{2^2}+\dfrac{5\times10^{-9}}{(8-2)^2})](https://tex.z-dn.net/?f=E%3D9%5Ctimes10%5E%7B9%7D%5Ctimes%28%5Cdfrac%7B2%5Ctimes10%5E%7B-9%7D%7D%7B2%5E2%7D%2B%5Cdfrac%7B5%5Ctimes10%5E%7B-9%7D%7D%7B%288-2%29%5E2%7D%29)
![E=5.75\ N/C](https://tex.z-dn.net/?f=E%3D5.75%5C%20N%2FC)
The direction is toward positive x- axis.
Hence, The magnitude of the electric field is 5.75 N/C towards positive x- axis.