Answer:
Explanation:
The three main particles that make an atom are:
- Proton: its mass is , it carries an electric charge of +e (
), and it is located in the nucles of the atom
- Neutron: its mass is 
, it carries no electric charge, and it is also located in the nucleus of the atom
- Electron: its mass is 
, it carries an electric charge of -e (), and it is located outside the nucleus
28 times stronger than the force of gravity on the surface of the Earth.
Answer:
When Magenta light is shown on a green surface, it looks black.
Explanation:
It absorbs the Magenta light and also reflects none of the light.
Answer:
a) Total mass form, density and axis of rotation location are True
b) I = m r²
Explanation:
a) The moment of inertia is the inertia of the rotational movement is defined as
I = ∫ r² dm
Where r is the distance from the pivot point and m the difference in body mass
In general, mass is expressed through density
ρ = m / V
dm = ρ dV
From these two equations we can see that the moment of inertia depends on mass, density and distance
Let's examine the statements, the moment of inertia depends on
- Linear speed False
- Acceleration angular False
- Total mass form True
- density True
- axis of rotation location True
b) we calculate the moment of inertia of a particle
For a particle the mass is at a point whereby the integral is immediate, where the moment of inertia is
I = m r²
