Answer:
<em>Undergo global warming at a faster rate than what we are seeing currently</em>
Explanation:
Climate can be described as the average weather of a place. The climate of a particular place can be described after looking at the temperature of the place for a year or more.
If factors, such as the Sun and volcanoes controlled climates then there would be an increase in the temperature and more global warming. Volcanoes can be described as heat erupting from mountains which will, of course, lead to global warming.
Answer:
The coefficient of kinetic friction between the sled and the snow is 0.0134
Explanation:
Given that:
M = mass of person = 52 kg
m = mass of sled = 15.2 kg
U = initial velocity of person = 3.63 m/s
u = initial velocity of sled = 0 m/s
After collision, the person and the sled would move with the same velocity V.
a) According to law of momentum conservation:
Total momentum before collision = Total momentum after collision
MU + mu = (M + m)V
![V=\frac{MU+mu}{M+m}](https://tex.z-dn.net/?f=V%3D%5Cfrac%7BMU%2Bmu%7D%7BM%2Bm%7D)
Substituting values:
![V=\frac{MU+mu}{M+m}=\frac{52(3.63)+15.2(0)}{52+15.2} =2.81m/s](https://tex.z-dn.net/?f=V%3D%5Cfrac%7BMU%2Bmu%7D%7BM%2Bm%7D%3D%5Cfrac%7B52%283.63%29%2B15.2%280%29%7D%7B52%2B15.2%7D%20%3D2.81m%2Fs)
The velocity of the sled and person as they move away is 2.81 m/s
b) acceleration due to gravity (g) = 9.8 m/s²
d = 30 m
Using the formula:
![V^2=2\mu(gd)\\\mu=\frac{V^2}{2gd} \\\mu=\frac{2.81^2}{2*9.8*30} =0.0134](https://tex.z-dn.net/?f=V%5E2%3D2%5Cmu%28gd%29%5C%5C%5Cmu%3D%5Cfrac%7BV%5E2%7D%7B2gd%7D%20%5C%5C%5Cmu%3D%5Cfrac%7B2.81%5E2%7D%7B2%2A9.8%2A30%7D%20%3D0.0134)
The coefficient of kinetic friction between the sled and the snow is 0.0134