If your question is how to get in fitness, all you have to do is work out, but that its self wont get you into shape, if you work out and then eat MILLIONS of food, not really, but a lot of food then what happens is all that workout you just did vanishes because you had one bite of pork... Why pork you ask? Well the fattest foods is
#1 Pork (bacon, some hot dogs, some burgers, and etc.)
e#2 Red meat (Most burgers, Most hot dogs, Sausges, Most Foods, etc)
#3 Big Snacks/ Tasty candy ( Crackers, Chocolate, Gummy Worms, etc.)
#4 Sweet Candy ( Skittles, maybe m n ms)
I could name more but if you just asked what you could replace with that is always TURKEY, turkey can be replaced as Red meat and Pork, also i'm not saying you cant ever eat these foods, just saying to take a easy on them.
The force between two system is inversely proportional to the square the distance between them. The indirect proportion between these items may be expressed as,
F = k / d²
where k is the constant proportionality. Substituting the known values,
0.68 N = k / (1 m)² ; k = 0.68
For the second case,
F = 0.68 / (0.5 m)² = 2.72 N
Thus, the answer is 2.72 N.
Answer:
roller coaster is very nice to see
The value of the angle of the incline
![\theta](https://tex.z-dn.net/?f=%5Ctheta)
at which the block starts to slide is the angle at which the component of the weight parallel to the incline becomes equal to the frictional force that keeps the block on the incline:
![mg \sin \theta = \mu N](https://tex.z-dn.net/?f=mg%20%5Csin%20%5Ctheta%20%3D%20%5Cmu%20N)
where the term on the left is the component of the weight parallel to the incline, and the term on the right is the frictional force, which is the product between the coefficient of friction
![\mu](https://tex.z-dn.net/?f=%5Cmu)
and the normal reaction of the incline N.
The normal reaction of the incline, N, is equal to the component of the weight perpendicular to the incline:
![N=mg \cos \theta](https://tex.z-dn.net/?f=N%3Dmg%20%5Ccos%20%5Ctheta)
Therefore, the initial equation becomes
![mg \sin \theta = \mu mg \cos \theta](https://tex.z-dn.net/?f=mg%20%5Csin%20%5Ctheta%20%3D%20%5Cmu%20mg%20%5Ccos%20%5Ctheta)
From which we find
![\tan \theta = \mu](https://tex.z-dn.net/?f=%5Ctan%20%5Ctheta%20%3D%20%5Cmu)
![\theta = \arctan \mu](https://tex.z-dn.net/?f=%5Ctheta%20%3D%20%5Carctan%20%5Cmu)
For angles above this value, the block will start sliding down, otherwise the block will stay on the incline.
Answer:
Please find the answer in the explanation.
Explanation:
Mention three disadvantages of friction between the parts of a machine
Three disadvantages of friction between the part of a machine are;
1. Friction causes wear and tear of machine parts.
2. Friction generates heat between the part of a machine.
3. Friction reduces the efficiency of a machine.
How does.
1 . oiling
2 using ball bearing
To reduce friction, you need to apply a lubricant. Oil and grease are examples of a lubricant. A lubricant helps to reduce friction by making the surface of the machine parts slippery thereby reducing tear and wear.
Also, friction can be reduced by using ball bearing which will allow the rolling of machine parts.