Q.39

Expert-verified
Found in: Page 385

### Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Book edition 4th
Author(s) Randall D. Knight
Pages 1240 pages
ISBN 9780133942651

# The two --diameter cylinders in FIGURE , closed at one end, open at the other, are joined to form a single cylinder, then the air inside is removed.A. How much force does the atmosphere exert on the flat end of each cylinder?B. Suppose one cylinder is bolted to a sturdy ceiling. How many football players would need to hang from the lower cylinder to pull the two cylinders apart?

ASSESS : football players each of mass are needed to pull the two cylinders apart, which is quite large.

See the step by step solution

## Step 1: Definition of force

A force is an external agent modifying a body's states of rest or motion. There is a magnitude and a direction to it. The force's direction is known as the force's direction, and the point where force is applied is known as the point where force is applied.

A spring balance is used to calculate the force. Newton is the unit of force .

## Step 2:Explanation(part A)

PREPARE:

Force does the atmosphere exert on the flat end of each cylinder

Number of football players need to pull the two cylinders

SOLVE:

(A)Force exerted on the flat end,

## Step 3: Force on the cylinder(part B)

(B)Force exerted on the cylinder ,

Where is the number of football players needed to pull the cylinders apart

ASSESS: Then that will take football players, each weight kilograms, to separate two cylinders, which are really substantial.