Answer: Interstellar dust is effective at blocking visible light because dust grains are so small.
Explanation: To find the answer, we need to know more about the interstellar dust.
<h3>What is interstellar dust?</h3>
- Interstellar dust developed from dying stars as they burn out.
- This dust can block the visible light as well as UV emerging from the stars, because dust grains can block light at optical wavelengths.
- it absorbs and scatters blue light more than red. thus, red light can pass through it.
- If we place a star behind the dust, it will look more redder than its usual color. This is called interstellar reddening.
- Grains have a typical size of .
Thus, we can conclude that, Interstellar dust is effective at blocking visible light because dust grains are so small.
Learn more about the interstellar dust here:
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5.7 km/h north and 5.8 km/h west are instantaneous velocities, while 8.1 km/h northwest is the average velocity.
velocity because there is a direction
Answer:Fossil Fuels Still Supply 84 Percent Of World Energy — And Other Eye Openers From BP's Annual Review.
Weak nuclear force is weaker than the strong nuclear force with a smaller range than the electromagnetic force.
It acts between fermions with spin 1/2 basically quarks and leptons. It has a range of 10⁻¹⁸ meters.
Option 1 is incorrect. It is stronger than the gravitational force.
Option 2 is incorrect. It is weaker than the electromagnetic force.
Option 3 is incorrect. It has a smaller range than the strong nuclear force.
The amplitude cannot be determined.
Explanation:
Given the parameters in the problem statement, it is impossible to determine the amplitude of the wave.
The velocity of the wave cannot be determined from the information of the velocity and period of the wave.
Velocity of the wave;
Velocity = Frequency x Wavelength
- The amplitude of a wave is the vertical displacement of a wave from rest.
- Amplitude of a wave is not related to velocity of a wave.
learn more:
Frequency of the wave brainly.com/question/5882803
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