The periodic table is known to consist of different elements. According to the chart, the element is lithium with an atomic number of 3.
- Lithium is known too be the third element on the periodic table after hydrogen and helium.
This element is mostly used in the production of rechargeable batteries for mobile phones, laptops, etc. and it is also used non-rechargeable batteries for production of heart pacemakers, toys, etc.
Learn more from
brainly.com/question/11211163
<h3>
Answer:</h3>
Velocity is 1 m/s
<h3>
Explanation:</h3>
<u>We are given;</u>
- Mass of the kiddy train is 1000 kg
- Radius of the curve is 5.0 m
- Centripetal force is 2000 N
We are required to determine the maximum speed of the train.
- Centripetal force refers to the force experienced by an object in a circular motion towards the center of a circular path.
- It is calculated by the formula;
, where m is the mass, v is the velocity and r is the radius of the circular path.
- Therefore, using the formula we can find the maximum speed.
![v=\sqrt{\frac{Fc.r}{m} }](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7BFc.r%7D%7Bm%7D%20%7D)
![v=\sqrt{\frac{(2000N)(5.0m)}{1000kg} }](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7B%282000N%29%285.0m%29%7D%7B1000kg%7D%20%7D)
![v=\sqrt{1}](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B1%7D)
![v=1m/s](https://tex.z-dn.net/?f=v%3D1m%2Fs)
Therefore, the maximum speed of the train is 1 m/s
Answer:
the answer is 96,06 g/mol
NaCl ........................