Answer : The final velocity of the ball is, 12.03 m/s
Explanation :
By the 3rd equation of motion,
![v^2-u^2=2as](https://tex.z-dn.net/?f=v%5E2-u%5E2%3D2as)
where,
s = distance covered by the object = 6.93 m
u = initial velocity = 2.99 m/s
v = final velocity = ?
a = acceleration = ![9.8m/s^2](https://tex.z-dn.net/?f=9.8m%2Fs%5E2)
Now put all the given values in the above equation, we get the final velocity of the ball.
![v^2-(2.99m/s)^2=2\times (9.8m/s^2)\times (6.93m)](https://tex.z-dn.net/?f=v%5E2-%282.99m%2Fs%29%5E2%3D2%5Ctimes%20%289.8m%2Fs%5E2%29%5Ctimes%20%286.93m%29)
![v=12.03m/s](https://tex.z-dn.net/?f=v%3D12.03m%2Fs)
Thus, the final velocity of the ball is, 12.03 m/s
Answer - La cristalización ye un procesu químicu pol cual a partir d'un gas, un líquidu o una disolución, los iones, átomos o molécules establecen enllaces hasta formar una rede cristalina, la unidá básica d'un cristal. La cristalización emplegar con bastante frecuencia en química para purificar una sustancia sólida.