3. According to the article, why did Europeans so quickly accept that the sun did move and change? A. Europeans had already been questioning the accuracy of their religious beliefs long before scientists began observing sunspots.

B. Scientists published a significant amount of work on their findings about sunspots, which helped to convince the public.

C. The religious leaders at the time were very supportive of scientific observations about sunspots.

D. There had been so many sightings of sunspots all in the same time period, which proved that scientists were all observing the same thing.

no

sodium is solid at rt

unbalanced force

explanation:

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

i think the answer is a and b

i wish you luck