Answer:
5 percent = normal matter
68 percent = dark energy
27 percent = dark matter
Explanation:
Answer:
F = 2985.125 N
Explanation:
Given that,
The radius of curvature of the roller coaster, r = 8 m
Speed of Micheal, v = 17 m/s
Mass of body, m = 65 kg We need to find the net force acting on Micheal. Net force act the bottom of the circle is given by :
![F=\dfrac{mv^2}{r}+mg\\\\F=m(\dfrac{v^2}{r}+g)\\\\=65(\dfrac{17^2}{8}+9.8)\\\\=2985.125\ N](https://tex.z-dn.net/?f=F%3D%5Cdfrac%7Bmv%5E2%7D%7Br%7D%2Bmg%5C%5C%5C%5CF%3Dm%28%5Cdfrac%7Bv%5E2%7D%7Br%7D%2Bg%29%5C%5C%5C%5C%3D65%28%5Cdfrac%7B17%5E2%7D%7B8%7D%2B9.8%29%5C%5C%5C%5C%3D2985.125%5C%20N)
So, the net force is 2985.125 N.
The first one would be thermal energy
Because you know that gravity is in m/s^2 so, period will be measured in seconds. You know the cable is 12m long and gravity is 9.81 solve for T (period) 2π12sqrt(9.81)=6.94922
Self productive and it depends on how whom is behaving.