Answer:
Voltage in the primary winding of the coil is 3.9 V
Explanation:
As we know by the principle of transformer we have

here we know that



now we have


Answer:
b) Equal to c
Explanation:
According to relativity, the speed of light in free space is constant in all inertial reference frame.
Answer:
Differences
microscopic refers to substances visible to the naked eye
macroscopic are substances invisible to naked eye
Similarities
both refer to different scales that are useful to determining the size to different compounds.
Explanation:
Ima find more
Answer:
It refracts when it hits the glass.
First question: 800J
Second question: 20.4m