It’s the first one I think I hope is right if not sorry but I’m pretty sure it’s the First one ☝
Answer:
the push of the table on the book
Explanation:
There are two forces acting upon the book.
First force - the Earth's gravitational pull ( a downward force)
Second force - the push of the table on the book ( referred as a normal force) (pushes upward on the book.)
These two forces are of equal magnitude and in opposite directions (20 N)
Therefore they balance each other
The book is said to be at equilibrium state without been subjected to a acceleration
Answer:
Explanation:
Given data
To find
Pressure
Solution
From Ideal gas law we know that
Substitute the given values to find pressure
So
Convert Atm to mmHg
Multiply the pressure values by 760
So
The water absorbs energy which causes chemical bonds to form, changing water into dew