<span>Earth's size and composition led to volcanic activity, which, in turn, had a major impact on Earth's "Atmosphere"
Hope this helps!</span>
Answer:
Dark matter does not affect our view, humans can see through them.
Explanation:
They do not affect our view because we can see right through the (weakly interacting) dark matter, as they do not interact or interfere with electromagnetic force.
Dark matter are often invisible substances and are difficult to spot because they don't absorb or reflect light.
Answer:
Explanation:
The explanation and answer to this is posted in your question #24236118
Answer:
and ![q=3.24*10^{-5}c](https://tex.z-dn.net/?f=q%3D3.24%2A10%5E%7B-5%7Dc)
Explanation:
a) We need first to identify the Period from the one-quarte 'time' given. That is
![t=6.4*10^{-3}s](https://tex.z-dn.net/?f=t%3D6.4%2A10%5E%7B-3%7Ds)
Then the period is,
![T=4t=4(6.4*10^{-3})=25.6*10^{-3}](https://tex.z-dn.net/?f=T%3D4t%3D4%286.4%2A10%5E%7B-3%7D%29%3D25.6%2A10%5E%7B-3%7D)
From this Period we can calculate the radio,
![v=\frac{2\pi r}{T}](https://tex.z-dn.net/?f=v%3D%5Cfrac%7B2%5Cpi%20r%7D%7BT%7D)
Rearrange for r,
![r=\frac{vT}{2\pi}\\r=\frac{(75m/s)(25.6*10^{-3}s)}{2\pi}\\r=0.305m](https://tex.z-dn.net/?f=r%3D%5Cfrac%7BvT%7D%7B2%5Cpi%7D%5C%5Cr%3D%5Cfrac%7B%2875m%2Fs%29%2825.6%2A10%5E%7B-3%7Ds%29%7D%7B2%5Cpi%7D%5C%5Cr%3D0.305m)
We know can calculate the Magnetic force,
![F=\frac{mv^2}{r}=\frac{(6.2*10^{-8})(75)^2}{0.305}\\F=1.143*10^{-3}N](https://tex.z-dn.net/?f=F%3D%5Cfrac%7Bmv%5E2%7D%7Br%7D%3D%5Cfrac%7B%286.2%2A10%5E%7B-8%7D%29%2875%29%5E2%7D%7B0.305%7D%5C%5CF%3D1.143%2A10%5E%7B-3%7DN)
b) To find the charge we only use the Force in terms of the electric field, that is
![F=Bvq](https://tex.z-dn.net/?f=F%3DBvq)
Rearrange to q,
![q=\frac{F}{Bv}\\q=\frac{1.143*10^{-3}}{(0.47)(75)}\\q=3.24*10^{-5}c](https://tex.z-dn.net/?f=q%3D%5Cfrac%7BF%7D%7BBv%7D%5C%5Cq%3D%5Cfrac%7B1.143%2A10%5E%7B-3%7D%7D%7B%280.47%29%2875%29%7D%5C%5Cq%3D3.24%2A10%5E%7B-5%7Dc)
An atom<span> with a neutral </span>charge<span> is one where the number of electrons is equal to the </span>atomic<span> number
hope i helped</span>