D. <span>Johannes Kepler argued that Earth was the center of the universe.
</span>
Answer:
<h2>16,600 N</h2>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 2000 × 8.3
We have the final answer as
<h3>16,600 N</h3>
Hope this helps you
fraction equation is<span>
F =µR
F=friction,µ=coefficient , R=reaction = mg
use same equation for b part, but the reaction is no longer mg because the plain is now inclined. Draw a forces diagram and you will see that the reaction force can be calculated from the weight of the object and inclination of the plain using trigonometry.</span>
Answer:
4
Explanation:
The reaction between hydrogen and oxygen gives water (H2O)
2H,+O, -> 2H2O
Oxygen is a gas O, = O2
Balancing both sides
let , be x
2x = 4
x= 2
Therefore, 2H2 = 4 hydrogen
D
Neutron is <span>a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.</span>
