Answer:
Digesting food
Explanation:
I have people who think that its not true but it is
Hope this helped
Answer:
The coefficient of kinetic friction is 0.51.
Explanation:
Given that,
Applied force, F = 75 N
Mass of a box, m = 15 kg
The acceleration of the box is 3 m/s²
We need to find the coefficient of kinetic friction. It is given by the formula as follows :

Where,
, is the normal force

So, the coefficient of kinetic friction is 0.51.
Answer:
In first case angular displacement will be 11.55 radian
In second case it will be 4 times the previous case
Explanation:
We have given that machine rotates at an angular velocity of 0.07 rad/sec
So initial angular velocity 
And its speed is increases to 3.4 rad/sec
So final angular velocity is 
Angular acceleration 
According to third equation of motion we know that



Now initial angular velocity and final angular velocity both are doubled but angular acceleration is constant
So 
And 
So 

So angular displacement will be 4 times the earlier displacement
Im not so sure but it should be the
instantaneous speed
This is the part of where you can easily slip away