Answer:
D. 12 cm
Explanation:
A node is a point on a standing wave that does not vibrate.
The nodes of a standing wave are shown in the following sketch.
The red dots are the nodes of the standing wave.
It is observed that the distance between two adjacent nodes is half the wavelength of the wave.
Therefore, if the wavelength of the wave is 24 cm, then the distance from one node to the net must be 24 / 2 = 12 cm.
Hence, choice D is the correct answer.
Answer:
58.703 ft/centuri
Explanation:
Length of the hair grow, l = 0.49 mm
Time to grow, t = 1 day
Convert mm into feet.
We know that, 1 mm = 0.00328 feet
So, 0.49 mm = 0.49 x 0.00328 = 0.0016072 ft
Convert day into century.
We know that, 1 century = 36525 days
So, 1 day = 1 / 36525 centuri
growth rate of hair = ![\frac{0.0016072}{\frac{1}{36525}}](https://tex.z-dn.net/?f=%5Cfrac%7B0.0016072%7D%7B%5Cfrac%7B1%7D%7B36525%7D%7D)
= 58.703 ft/centuri
Have an amazing day you are an amazing person:)
As an important contribution to a sustainable future, chemistry and its products must be adapted to a circular economy (CE)—a system aimed at eliminating waste, circulating and recycling products, and saving resources and the environment.
Explanation:
In order to determine the work done, we will first calculate the internal energy as follows.
= ![\frac{5}{2} \times \frac{2 \times 1.02}{29} \times 8.314 \times 298](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B2%7D%20%5Ctimes%20%5Cfrac%7B2%20%5Ctimes%201.02%7D%7B29%7D%20%5Ctimes%208.314%20%5Ctimes%20298)
= 0.171 kJ
Now, we know that relation between internal energy and pressure according to the first law of thermodynamics is as follows.
= q + w
Since, in the given situation heat energy (q) is equal to 0. Therefore,
= w
= 0.171 kJ
Thus, we can conclude that minimum work that must be supplied to accomplish this compression process is 0.171 kJ.