Using
F= mv²/r
4 = 0.5×v² / 2
8 /0.5 = v²
v²=16
v= √16
v= 4 ms-¹
Old Grandpy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The moment of inertia of a uniform solid sphere is equal to 0.448
.
<u>Given the following data:</u>
Mass of sphere = 7 kg.
Radius of sphere = 0.4 meter.
<h3>How to calculate moment of inertia.</h3>
Mathematically, the moment of inertia of a solid sphere is given by this formula:
![I=\frac{2}{5} mr^2](https://tex.z-dn.net/?f=I%3D%5Cfrac%7B2%7D%7B5%7D%20mr%5E2)
<u>Where:</u>
- I is the moment of inertia.
Substituting the given parameters into the formula, we have;
![I=\frac{2}{5} \times 7 \times 0.4^2\\\\I=2.8 \times 0.16](https://tex.z-dn.net/?f=I%3D%5Cfrac%7B2%7D%7B5%7D%20%5Ctimes%207%20%5Ctimes%200.4%5E2%5C%5C%5C%5CI%3D2.8%20%5Ctimes%200.16)
I = 0.448
.
Read more on inertia here: brainly.com/question/3406242
Answer: 0.62
Explanation:
Coefficient of friction is defined as the ratio of the moving force (Fm) acting on a body to the normal reaction (R).
Note that the normal reaction acts vertically on the object and is equal to the objects weight (W) i.e W=R
Since W = mg, W = 38.4 ×10
W= 384N =R
Normal reaction = 384N
The horizontal force acting on the body will be the moving force which is 238N
Coefficient of friction = Fm/R
Coefficient of friction = 238/384
Coefficient of friction = 0.62
Therefore, coefficient of kinetic friction between the box and the floor is 0.62
Answer:
Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an infectious agent.
Explanation:
<em>HOPE</em><em> </em><em>IT</em><em> </em><em>HELPS</em><em> </em>
<em>HAVE</em><em> </em><em>A</em><em> </em><em>NICE</em><em> </em><em>DAY</em><em> </em><em>:)</em><em> </em>
<em>XXITZFLIRTYQUEENXX</em><em> </em>