The hot gases produce their own characteristic pattern of spectral lines, which remain fixed as the temperature increases moderately.
<h3><u>Explanation: </u></h3>
A continuous light spectrum emitted by excited atoms of a hot gas with dark spaces in between due to scattered light of specific wavelengths is termed as an atomic spectrum. A hot gas has excited electrons and produces an emission spectrum; the scattered light forming dark bands are called spectral lines.
Fraunhofer closely observed sunlight by expanding the spectrum and a huge number of dark spectral lines were seen. "Robert Bunsen and Gustav Kirchhoff" discovered that when certain chemicals were burnt using a Bunsen burner, atomic spectra with spectral lines were seen. Atomic spectral pattern is thus a unique characteristic of any gas and can be used to independently identify presence of elements.
The spectrum change does not depend greatly on increasing temperatures and hence no significant change is observed in the emitted spectrum with moderate increase in temperature.
Answer:
Explanation:
If two forces act on an object in the same direction, the net force is equal to the sum of the two forces.
Your answer would be A. You divide 96 by 16 to find the answer
The average power produced by the soccer player is 710 Watts.
Given the data in the question;
- Mass of the soccer player;
![m = 67kg](https://tex.z-dn.net/?f=m%20%3D%2067kg)
- Energy used by the soccer player;
![E = 5100KJ = 5100000J](https://tex.z-dn.net/?f=E%20%3D%205100KJ%20%3D%205100000J)
- Time;
![t = 2.0h = 7200s](https://tex.z-dn.net/?f=t%20%3D%202.0h%20%3D%207200s)
Power; ![P =\ ?](https://tex.z-dn.net/?f=P%20%3D%5C%20%3F)
Power is simply the amount of energy converted or transferred per unit time. It is expressed as:
![Power = \frac{Energy\ converted }{time}](https://tex.z-dn.net/?f=Power%20%3D%20%5Cfrac%7BEnergy%5C%20converted%20%7D%7Btime%7D)
We substitute our given values into the equation
![Power = \frac{5100000J}{7200s}\\\\Power = 708.33J/s \\\\Power = 710J/s \ \ \ \ \ [ 2\ Significant\ Figures]\\\\Power = 710W](https://tex.z-dn.net/?f=Power%20%3D%20%5Cfrac%7B5100000J%7D%7B7200s%7D%5C%5C%5C%5CPower%20%3D%20708.33J%2Fs%20%5C%5C%5C%5CPower%20%3D%20710J%2Fs%20%5C%20%5C%20%5C%20%5C%20%5C%20%5B%202%5C%20Significant%5C%20Figures%5D%5C%5C%5C%5CPower%20%3D%20710W)
Therefore, the average power produced by the soccer player is 710 Watts.
Learn more: brainly.com/question/20953664
Answer:
P = 0.25 W
Explanation:
Given that,
The emf of the battry, E = 2 V
The resistance of a bulb, R = 16 ohms
We need to find the power delivered to the bulb. We know that, the formula for the power delivered is given by :
![P=\dfrac{V^2}{R}\\\\P=\dfrac{2^2}{16}\\\\=0.25\ W](https://tex.z-dn.net/?f=P%3D%5Cdfrac%7BV%5E2%7D%7BR%7D%5C%5C%5C%5CP%3D%5Cdfrac%7B2%5E2%7D%7B16%7D%5C%5C%5C%5C%3D0.25%5C%20W)
So, 0.25 W power is delivered to the bulb.