Answer:
Torque, 
Explanation:
Given that,
Coordinates, 
Force acting on the flea, 
Let 
is the net torque about the origin on a flea. It is given by the following formula :
So, the net torque about the origin on a flea is 
. Hence, this is the required solution.
Answer:
we approach a maximum or minimum the values of the ordinate are closer and closer and when passing this point the values change their trend
Explanation:
The reason for this process occurs because as we approach a maximum or minimum the values of the ordinate are closer and closer and when passing this point the values change their trend if they were rising, they begin to fall and if they were falling they begin to rise. Therefore the maximum point is a point of inflection of the curve since its trend changes.
Another way of looking at this process is that mathematically the point where there is a maximum or a minimum corresponds to the point where the first derivative is equal to zero, this is the slope of the line is horizontal, so the points before after correspond to values with slope of different sign.
Energy required = Specific Heat × mass × change in temp.
<span>Specific Heat (Cp) water = 4.186kJ/kgC </span>
<span>Mass = 20kg </span>
<span>Change in temperature = 35C - 0C = 35C </span>
<span>Q = 4.186kJ/kgC × 20kg × 35C = 293.02kJ hope this helps! (:</span>
Displacement in Space
It is the length of a body's real route. It is the shortest distance between the body's final and beginning positions.
It's a number with a scalar value. It's a quantity with a vector.
It can't possibly be negative. It might be a negative number, a zero number, or a positive number.
