The act of using senses or tools to gather information is called "observation." In scientific method, it is very essential to have this one. Through observation, we are able to get what we wanted to get using our senses and other tools. This process is very tedious if the field that you are studying is quite complicated. Hope this Helps! PLEASE PUT BRAINLIEST!
Answer:
c.an equation that can be used to accurately calculate the pull of gravity between two objects
Explanation:
umm ok for you
Answer:
A. 20 N down
Explanation:
It's asking how much force of gravity is acting on it. The book weighs 20 Newtons so that's how much gravity is being applied. Hope this helps
Explanation:
the unit of area is called a derived unit because it is made of two fundamental unit metre and metre.
Answer:
1.28 s
Explanation:
Given:
Δy = 8 m
v₀ = 0 m/s
a = 9.8 m/s²
Find: t
Δy = v₀ t + ½ at²
(8 m) = (0 m/s) t + ½ (9.8 m/s²) t²
t = 1.28 s