12 is correct
Explanation: it's a cube
I don’t know what it’s is
Answer:
0.00956770833 T
Explanation:
q = Charge of electron = 
m = Mass of proton = 
a = Acceleration = 
v = Velocity = 
Magnetic field is given by
The magnetic field is 0.00956770833 T
I believe the answer is D. phase changes. The two level portions represents change of state that does not involve change in temperature (at a constant temperature). The first level represents a change of solid to liquid;p where the ice melts and becomes water by gaining the latent heat of fusion, while the other level represents a change of state from liquid to gas; the water changes to steam (water vapor) by gaining the latent heat of vaporization.
Answer:
A Magnesia
Explanation:
The word magnetism comes from the word Magnesia, which is the name for a region in Asia Minor, where fragments of Fe3O4 ore (magnetite) were found, which attracts other metal objects.
Magnetism is a physical phenomenon by which we describe the attractive or repulsive force between materials.
This phenomenon has been known for thousands of years.
