Answer:
yes you will need a control
Explanation: all i know is that you need a control i don't know how to set it up lol sorry
The correct answer is option b, 63.6 kPa
Given,
The diameter of the heel, d=7 cm=0.07 m
The mass of the child, m=25 kg
The pressure is given by the ratio of the force to the area through which the force is applied.
The force applied on the floor by the child is equal to its weight.
Thus the pressure applied on the floor by the child is given by,

Where A is the area of the cross-section of the heel.
On substituting the known values,

Thus the pressure applied on the floor by the heel is 63.6 kPa
<span>The two factors which determine the period of a pendulum is:
A) Length of the string
B) Acceleration of gravity
In short, Your Answer would be Option C
Hope this helps!</span>
It increases with the motion of particles within a substance
I just took the test