It is a change that results in a new chemical substance.
Answer:velocity=![93.12m/s](https://tex.z-dn.net/?f=93.12m%2Fs)
Explanation:
We shall use conservation of energy to solve this problem
we have
Potential energy of King Kong at top of building = His kinetic energy at the bottom
Potential energy of an object =
= 20000 kg
Where m is mass of an object(20000 kg)
g is accleration due to gravity = 9.81![m/s^{2}](https://tex.z-dn.net/?f=m%2Fs%5E%7B2%7D)
h is the height above the surface of earth = 1450 feet = 441.96 meters
Applying values we get
......................(i)
Now Kinetic energy is given by
.......................(ii)
Equating i and ii we get
86712.552 =![\frac{1}{2}mv^{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dmv%5E%7B2%7D)
![v=\sqrt{\frac{2E}{m}}](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7B2E%7D%7Bm%7D%7D)
Applying values we get
![v=\sqrt{\frac{2\times 86712.552\times 10^{3}}{20\times 10^{3}}}\\\\v= 93.12m/s](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7B2%5Ctimes%2086712.552%5Ctimes%2010%5E%7B3%7D%7D%7B20%5Ctimes%2010%5E%7B3%7D%7D%7D%5C%5C%5C%5Cv%3D%2093.12m%2Fs)
Answer: It keeps them organized
Explanation: ... ew
d. all of these
look at the picture to know from where we get this law with application on it
Magnetic forces act at a distance. The opposites attract and pull each other closer