All living creatures contain carbon
We know that
g = LcosΘ
<span>where g, L and Θ are centripetal gravity length, and angle of object
</span><span>ω² = g/LcosΘ </span>
<span>ω = √(g / LcosΘ) </span>
A good scientific question has certain characteristics. It should have some answers (real answers), should be testable (can be tested by someone through an experiment or measurements), leads to a hypothesis that is falsifiable (means it should generate a hypothesis that can be shown to fail), etc.
Answer:
a. stay the same for very long
Explanation:
It is rare for any motion to stay the same for a very long time. The force applied on a body causes changes in the magnitude of motion.
- For motion to remain constant, there must not be a net force acting on the body
- All the forces on the body must be balanced.
- This is very hard to come by.
- Motion changes very frequently.
Answer:
0.027648 kgm²
Explanation:
M = Mass of disc = 1.2 kg
r = Radius of disc = 0.16 m
m = Mass of rod = 0.16 kg
R = Rod distance = 0.16 m
Moment of inertia of disk is given by
![I_1=\dfrac{1}{2}Mr^2\\\Rightarrow I_1=\dfrac{1}{2}1.2\times 0.16^2\\\Rightarrow I_1=0.01536\ kgm^2](https://tex.z-dn.net/?f=I_1%3D%5Cdfrac%7B1%7D%7B2%7DMr%5E2%5C%5C%5CRightarrow%20I_1%3D%5Cdfrac%7B1%7D%7B2%7D1.2%5Ctimes%200.16%5E2%5C%5C%5CRightarrow%20I_1%3D0.01536%5C%20kgm%5E2)
Moment of inertia of the three rods
![I_2=3mr^2\\\Rightarrow I_2=3\times 0.16\times 0.16^2\\\Rightarrow I_2=0.012288\ kgm^2](https://tex.z-dn.net/?f=I_2%3D3mr%5E2%5C%5C%5CRightarrow%20I_2%3D3%5Ctimes%200.16%5Ctimes%200.16%5E2%5C%5C%5CRightarrow%20I_2%3D0.012288%5C%20kgm%5E2)
The total moment of inertia is given by
![I=I_1+I_2=0.01536+0.012288\\\Rightarrow I=0.027648\ kgm^2](https://tex.z-dn.net/?f=I%3DI_1%2BI_2%3D0.01536%2B0.012288%5C%5C%5CRightarrow%20I%3D0.027648%5C%20kgm%5E2)
The moment of inertia of the stool with respect to an axis that is perpendicular to the plane of the disk at its center is 0.027648 kgm²