The matter from the explosion can reach him, hitting him. He should be able to feel that.
4. using a circular piece of wood
The average rate at which energy is transmitted along the string is 15.1 J/s.
<h3>
What is average power of a wave?</h3>
The average power of a sinusoidal wave is proportional to the square of the amplitude of the wave and the square of the angular frequency of the wave
P = ¹/₂μω²A²v
where;
- ω is angular frequency = 10π rad/s
- A is amplitude of the wave, = 0.35
- μ is linear mass density = 75 g/m = 0.075 kg/m
- k is angular wave number, k = 3π /m
- v is speed of the wave = ?
v = ω/k
v = (10π) / (3π)
v = 3.33 m/s
P = ¹/₂μω²A²v
P = ¹/₂(0.075)(10π)²(0.35)²(3.33)
P = 15.1 J/s
Thus, the average rate at which energy is transmitted along the string is 15.1 J/s.
Learn more about average power of a wave here: brainly.com/question/24228412
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Answer: It would take 10.16 million years.
Explanation:
Light travels at a speed .
A light-year is the distance that light travels in vacuum in one year.
The Andromeda Galaxy is 2.54 million light-years from the Earth.
This means that
Let's say is the speed of the ship. Then
⇒
So, we have:
⇒
⇒
So, at speed , it would need a time of 10.16 million years.