The circular clapper on the air side of a dry pipe sprinkler valve has a diameter of 10 in (25cm). what force will be acting on this clapper due to an air pressure of 40psi(3bar)?
correct answer from back of book is: 3141.6lbs
how do i get this answer? show me all the formulas and steps you took to get this answer,

answer: decibel

explanation:

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

c) up is the direction the magnetic force is acting on the charge.

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.