An echo
Refraction
Diffraction
Transmission
reflection
B. It's randomness would increase
Because the Second Law of Thermodynamics states that as energy is transferred or transformed, more and more of it is wasted. It also states that there is a natural tendency of any isolated system to degenerate into a more disordered state.
The new acceleration is ![108 m/s^2](https://tex.z-dn.net/?f=108%20m%2Fs%5E2)
Explanation:
We can answer this problem by applying Newton's second law, which states that:
![F=ma](https://tex.z-dn.net/?f=F%3Dma)
where
F is the net force on an object
m is the mass of the object
a is its acceleration
The equation can be rewritten as
![a=\frac{F}{m}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7BF%7D%7Bm%7D)
In this problem, the initial acceleration is
![a=18.0 m/s^2](https://tex.z-dn.net/?f=a%3D18.0%20m%2Fs%5E2)
Later:
- The net force is tripled: ![F'=3F](https://tex.z-dn.net/?f=F%27%3D3F)
- The mass is halved: ![m'=\frac{m}{2}](https://tex.z-dn.net/?f=m%27%3D%5Cfrac%7Bm%7D%7B2%7D)
Therefore, the new acceleration is:
![a'=\frac{F'}{m'}=\frac{3F}{m/2}=6\frac{F}{m}=6a](https://tex.z-dn.net/?f=a%27%3D%5Cfrac%7BF%27%7D%7Bm%27%7D%3D%5Cfrac%7B3F%7D%7Bm%2F2%7D%3D6%5Cfrac%7BF%7D%7Bm%7D%3D6a)
which means that the new acceleration is 6 times the original acceleration, therefore
![a'=6(18)=108 m/s^2](https://tex.z-dn.net/?f=a%27%3D6%2818%29%3D108%20m%2Fs%5E2)
Learn more about acceleration:
brainly.com/question/9527152
brainly.com/question/11181826
brainly.com/question/2506873
brainly.com/question/2562700
#LearnwithBrainly
Force of gravity = Mass x Gravitational force
Fg=mg
Fg = (5.7)(9.8)
Fg= 55.86 N