The question for this problem would be the minimum headphone delay, in ms, that will cancel this noise.
The 200 Hz. period = (1/200) = 0.005 sec. It will need to be delayed by 1/2, so 0.005/2, that is = 0.0025 sec. So converting sec to ms, will give us the delay of:Delay = 2.5 ms.
In the Periodic Table, elements with similar reactivity and similar properties are found under the same column.
In fact, elements in the same columns are said to be in the same "group", and they have the same number of valence electrons, i.e. the same number of electrons in the outermost shell. This is the main characteristics that determine how an element reacts with other elements.
For instance, Litium (Li), sodium (Na) and potassium (K) are all in the first group, and they both have 1 valence electrons. This means they can easily give away this electron to an atom of another element forming bonds with it, and therefore they have high reactivity. Instead, elements of the 8th group are called "noble gases", and they all have similar properties: they all have the outermost shell full of eletrons, so they have zero valence electrons and so they have little or no reactivity at all. Example of elements in this group are Neon (Ne) and Argon (Ar).
You didn't mention it, but the trumpeter herself has to be standing still.
<span>Person C, the one running towards the trumpeter, hears a pitch
that is higher than B-flat. (A)
Person B, the one running away from the trumpeter, hears a pitch
that is lower than B-flat.
Person D, the one standing still the whole time, hears the B-flat.</span>
The particle will travel a distance of 28 m in the next two seconds
<h3>Acceleration</h3>
Acceleration is defined as the change in velocity with time
- Acceleration = final velocity - initial velocity / time
<h3>Calculating initial velocity</h3>
distance covered = 10 m
time = 2 seconds
velocity = distance/time
initial velocity = 10/2
initial velocity = 5m/s
<h3>Calculating final velocity</h3>
distance = 22 m
time = 2 seconds
Final velocity = 22/2
Final velocity = 11 m/s
<h3>Calculating acceleration</h3>
Acceleration = change in velocity/time
acceleration = 11m/s - 5m/s /2 s
acceleration = 3m/s²
<h3>Calculating distance covered</h3>
Using the equation of motion:
s = ut + at²/2
s = 11 * 2 + 3 * 2²/2
s -=28 m
Therefore, the particle will travel a distance of 28 m in the next two seconds
Learn more about distance and acceleration at: brainly.com/question/16847527
