Answer:
Measurement is important so we could measure certain things right. By taking measurements we can have a knowledge of sizes, lengths, widths etc.
Explanation:
Vaporization, i think is what your looking for haha
Answer:
The arrow-apple combo will move with a velocity 3.6 m/s to the right.
Explanation:
Use the law of conservation of momentum to solve this problem. In this case the law can be written as follows:
![m_{arrow}v_{arrow}+m_{apple}\cdot 0= (m_{arrow}+m_{apple})v_{both}](https://tex.z-dn.net/?f=m_%7Barrow%7Dv_%7Barrow%7D%2Bm_%7Bapple%7D%5Ccdot%200%3D%20%28m_%7Barrow%7D%2Bm_%7Bapple%7D%29v_%7Bboth%7D)
from which the desired velocity can be isolated:
![\frac{m_{arrow}v_{arrow}}{m_{arrow}+m_{apple}}= v_{both}\\v_{both} = \frac{0.25kg\cdot 5\frac{m}{s}}{0.35kg}=3.6\frac{m}{s}](https://tex.z-dn.net/?f=%5Cfrac%7Bm_%7Barrow%7Dv_%7Barrow%7D%7D%7Bm_%7Barrow%7D%2Bm_%7Bapple%7D%7D%3D%20v_%7Bboth%7D%5C%5Cv_%7Bboth%7D%20%3D%20%5Cfrac%7B0.25kg%5Ccdot%205%5Cfrac%7Bm%7D%7Bs%7D%7D%7B0.35kg%7D%3D3.6%5Cfrac%7Bm%7D%7Bs%7D)
The arrow-apple combo will move with a velocity 3.6 m/s to the right.
A wave with a greater amplitude carries more energy to wherever it goes.