1 Joule IS 1 newton-meter.
Answer:
0.25 m
Explanation:
Refraction occurs when the velocity or wavelength of a wave changes at the interface between two media.
We know that refractive index=
Wavelength in medium A/wavelength in medium B = velocity in medium A/velocity in medium B
Let the wavelength of medium B be a
0.5/a = 0.3/0.15
0.5 × 0.15 = 0.3 × a
a= 0.5 × 0.15/0.3
a= 0.25 m
Using the equation v(average)=x traveled/time
v = 100/2.5
You get 40 kilometers per hour
Hope this helped!
Acceleration is any change in speed or direction of motion.
Speed and direction together comprise 'velocity'.
Within the visible spectrum, our experience of red is associated with a <u>longer wavelength </u>of light.
<h3>What is the electromagnetic spectrum?</h3>
The electromagnetic spectrum is seen as colors: violet, indigo, blue, green, yellow, orange, and red. Blue light has a very short wavelength, and so produces a higher amount of energy.
In the visible spectrum, the longer wavelengths that we perceive as red are followed by intermediate wavelengths for green and shorter wavelengths for blue and violet.
Our perception of red is connected to a longer wavelength of light within the visible spectrum.
Hence longer wavelength is the correct answer for blanks.
To learn more about the electromagnetic spectrum refer to:
brainly.com/question/15576247
#SPJ1
