Explanation:
The table is level and there are no other forces on the book, so the normal force is equal to the weight.
N = mg
N = (2.3 kg) (9.8 m/s²)
N = 22.5 N
The balloon was 30.65 meters above ground.
ANSWER: A
There would be no mass or weight and he would float away
Its true the ionic compounds have a higher melting point
