The force applied to the spring is the weight of the object that compresses it, so it is equal to:

Because of this force, the spring compresses by

. Using Hook's law,

,
since we know the intensity of the force (the weight W) and the compression of the spring, x, we can find k, the spring constant:
The diaphragm is primarily an involuntary muscle. Although voluntary means can be achieved, such as when you hold your breath while swimming, this is temporary as the diaphragm will eventually work on its own to supply your body with oxygen.
The hidden gene is called recessive