<span>Generally speaking, the level of molecular motion is highest in gases, where molecules move around freely in space, bouncing off of each other, and lowest in solids, where molecules are bound together in a rigid structure. As such, the answer would be A; "the molecules in air move more than the molecules in wood".</span>
Answer:
is it 20kg. Two opposing forces pushing onto each other
Answer:
![v\approx 16.956\,\frac{m}{s}](https://tex.z-dn.net/?f=v%5Capprox%2016.956%5C%2C%5Cfrac%7Bm%7D%7Bs%7D)
Explanation:
The motion of the vehicule on a highway curve can be modelled by the following equation of equilibrium:
![\Sigma F = f = m\cdot \frac{v^{2}}{R}](https://tex.z-dn.net/?f=%5CSigma%20F%20%3D%20f%20%3D%20m%5Ccdot%20%5Cfrac%7Bv%5E%7B2%7D%7D%7BR%7D)
The maximum speed is:
![v = \sqrt{\frac{f\cdot R}{m} }](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B%5Cfrac%7Bf%5Ccdot%20R%7D%7Bm%7D%20%7D)
![v = \sqrt{\frac{(7500\,N)\cdot (46\,m)}{1200\,kg} }](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B%5Cfrac%7B%287500%5C%2CN%29%5Ccdot%20%2846%5C%2Cm%29%7D%7B1200%5C%2Ckg%7D%20%7D)
![v\approx 16.956\,\frac{m}{s}](https://tex.z-dn.net/?f=v%5Capprox%2016.956%5C%2C%5Cfrac%7Bm%7D%7Bs%7D)
Answer:
A) The wave that travels through the rail reaches the microphone first.
B) separation in time between the arrivals of the two pulses is 0.01539 seconds.
Explanation:
Detailed explanation and calculation is shown in the image below
Answer:
B)a tool to drop temperatures, mercury, an electric current, and a tool to measure resistance