Answer:
• The greater the amplitude, the louder the sound
• The lower the amplitude, the lower the sound
I hope it helped you! ^^
Given what we know, the light rays that you see on the surface of the mirror are at the same angle as the light rays that your friend sees.
<h3 /><h3>Why does this happen?</h3>
This has to do with the way in which a mirror affects the light that hits it. A mirror will reflect light, but will do so at the same angle that the light reaches it. This means that if the light reaches the mirror at a 40-degree angle, it will be reflected in the opposite direction at a 40-degree angle.
Therefore, we can confirm that the light rays that you see on the surface of the mirror are at the same angle as the light rays that your friend sees.
To learn more about light waves visit:
brainly.com/question/23342892?referrer=searchResults
B because in science work means moving an object over a distance
Ohm’s law states:
I*R = U
So we just fill in:
U = 11 A * 60 Ω = 660 V
Answer:
i = 0.00077A
Explanation:
Given:
loop radius, r = 3.0 cm = 0.03 m
Area, A = π x r² = π x 0.03² = 0.0028 m²
Magnetic Field, B = 0.75 T
Loop resistance, R = 18 Ω
time, t = 0.15 seconds
Now,
the induced emf is given as:
EMF = - BA/t .......1
Likewise,
EMF = iR.......2
Equate 1 and 2
iR = - BA/t
i = - BA/tR
i = 0.75×0.0028/0.15×18
i = 0.0021/2.7
i = 0.00077A
