Answer: 1820
Explanation:
I <u>believe</u> the answer is the 1820, as the introduction of steam powered printing presses and steam powered paper mills significantly lowered the cost of books to decrease and significantly increased their circulation/availability.
hope this helps
-lvr
Force is a push or pull which is exerted on an objects. Types of Force are
Contact forces
Non contact forces or At a distance forces
Examples of Contact forces are:
Stretching of the spring of a balance
pushing of a pram
kicking of a football
Pushing the door
Hitting the ball etc are some examples of contact forces.
some types of contact forces are given in the list below:
Applied force
Normal force
Frictional force
Tension force
Air resistance force
Spring force
