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Licemer1 [7]
3 years ago
13

g Using the absorbance vs wavelength spectrum where the 1st peak is slightly less intense than the 2nd peak, determine the wavel

ength, the absorbance value, and the dye color identification color for the two peaks in the unknown spectrum.
Physics
1 answer:
Andre45 [30]3 years ago
5 0

Answer:

The wavelength range is always used to know the probable material present

Explanation:

The wavelength variation from with the concentration shows the type of material in as much the Spectrometer is well initialized before running the sample. The peaks interval may have effect on band gap.  

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A wave is moving at 18 m/s. If its wavelength is 3 meters, what is its frequency?
Vlada [557]

here's the solution,

we know that,

=》

wave \: speed = wavelength \times frequency

so,

=》

18 = 3 \times f

=》

f =  \dfrac{18}{3}

=》

f = 6

frequency = 6 hertz

7 0
3 years ago
Two identical rifles are shot at the same time, and the sound intensity level is 64.7 dB. What would be the sound intensity leve
mixas84 [53]

Answer:

The sound intensity is still the same. The sound intensity level does not depend on the number of sound sources but only the wave properties of the wave medium and the properties of the sound source. The wave properties of the medium includes the density and also the temperature.

Explanation:

5 0
3 years ago
Read 2 more answers
Protons are found togather in a
k0ka [10]

Answer:

they are found in a nucleus

Explanation:

3 0
3 years ago
A car travels 60 km in the first 2 hours and 68 km in the next 2 hours. What’s the cars average speed?
Klio2033 [76]

Answer:

<u>The car's average speed is 32 kilometers per hour</u>

Explanation:

1. Let's review the information given to us to answer the question correctly:

First two hours = 60 kilometers

Next two hours = 68 kilometers

2. What is the car's average speed?

Total distance traveled by the car = 60 + 68

Total distance traveled by the car = 128

Total time of travel = 2 + 2 hours

Total time of travel = 4 hours

Average speed = Total distance/Total time

Replacing with the real values, we have:

Average speed = 128/4

<u>Average speed = 32 kilometers per hour</u>

4 0
3 years ago
If an object is projected upward from ground level with an initial velocity of 160 ft per​ sec, then its height in feet after t
sesenic [268]

Answer:

Time will be 5 sec

And maximum height will be 1200 feet    

Explanation:

We have given that initial velocity of the object u = 160 ft/sec'

Function of height s(t)=-16t^2+160t

Take derivative of the distance

We know that first derivative of distance is velocity

So v(t)=-32t+160

At maximum height we know that velocity is zero

So -32t+160=0

t = 5 sec

So it will take 5 sec to reach maximum height

Now maximum height will occur at t = 5 sec

So maximum height = 16\times 5^2+160\times 5=1200feet

7 0
3 years ago
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