Answer:
The contraction in the rod is 71 mm.
Explanation:
Given that,
original length L'= 2.99 m
Speed 
We need to calculate the length
Using expression for length contraction


Where,

Where, v = speed of observer
c = speed of the light
Put the value into the formula


The expression for the contraction in the rod




Hence, The contraction in the rod is 71 mm.
The centripetal force<span> is the resultant </span>force<span> that causes this acceleration, and it is </span>always directed<span> towards the center of the </span>circle<span>. Without the resultant </span>centripetal force<span>, an </span>object<span> would travel at a constant velocity (constant speed and </span>direction<span>).
So the correct answer would be A : Toward the center of the circle.
Hope this helps :)
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Answer:
Our drinking water comes from lakes, rivers and groundwater. For most Americans, the water then flows from intake points to a treatment plant, a storage tank, and then to our houses through various pipe systems. A typical water treatment process.
Explanation:
Answer:
Reverse Osmosis and UV Treatment
Explanation:
Reverse Osmosis, commonly known as RO, process is very effective in removing salt content from water. This process is known as desalination. IN RO, a partially permeable membrane is used to remove unwanted molecules, ions, and large particles. RO will take care of both desalination and purification of water.
Further UV treatment can be done to kill any remaining microorganisms as these microorganisms can not withstand UV radiation.