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scZoUnD [109]
3 years ago
14

Identify the parts of the wave below. Please help! I need it quite soon!

Physics
1 answer:
dimulka [17.4K]3 years ago
4 0
A. wavelength
<span>B. Amplitude
 The others I am not sure about

</span>
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Jordan wants to know the difference between using a 60-W and 100-W lightbulb in her lamp. She calculates the energy it would tak
Vladimir79 [104]

Answer:

B. 1200 J

Explanation:

Hello.

In this case, given the powers, we compute the energy transferred as shown below:

E=P*t\\\\E_1=60J/s*30s=1800J\\\\E_2=100J/s*30s=3000J\\\\Difference=3000J-1800J\\\\Difference=1200J

Therefore, answer is B. 1200 J .

Best regards.

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Chuge%20%5Cfbox%20%5Cpink%20%7Bq%7D%5Chuge%20%5Cfbox%20%5Cgreen%20%7B%CF%85%7D%5Chuge%20%5Cf
natta225 [31]

Answer:

the refractive index variable is n or n'

5 0
3 years ago
Read 2 more answers
Name and Title:
Natalka [10]

The variable that is altered by the independent variable is called the dependent variable. the spectrum given out by the hypothetical unknown celestial object.

Name : Christopher Andre

Instructor name : Albert brown

Name of the lab : ELS Laboratory

The term electromagnetic spectrum refers to the range of electromagnetic radiation's frequencies, as well as the wavelengths and photon energies connected to each frequency.

By analyzing the absorption spectra of the planets and moons, the electromagnetic spectrum experiment seeks to identify the components that make up their atmospheres.

From below one hertz to over 1025 hertz, electromagnetic waves are included in the electromagnetic spectrum.

The wavelengths that correlate to the frequency range from tens of thousands of kilometers to a small portion of the size of an atomic nucleus.

Starting at the low frequency (long wavelength) end of the spectrum, each frequency band's electromagnetic waves are referred to by a variety of names.

Hence the dependent variable is the one that changes as a result of the independent variable.

Learn more about electromagnetic spectrum here

brainly.com/question/13803241

#SPJ10

6 0
1 year ago
a vertical solid steel post 29cm in diameter and 2.0m long is required to support a load of 8200kg, ignore the weight of the pos
erik [133]

Answer:

The stress is  \sigma  =  1.218*10^{6} \  N/m^2

Explanation:

From the question we are told that

   The diameter of the post is  d =  29 \ cm  =  0.29 \  m

   The length is L  =  2.0 \  m

    The weight of the loading mass

Generally  the  radius of the post is mathematically represented as

     r =  \frac{0.29}{2}

=>   r = 0.145 \  m

Generally the area of the post is  

       A =  \pi r^2

=>     A =  3.14 *  0.145 ^2

=>     A =  0.066 \ m^2

Generally the weight exerted by the load is mathematically represented as

        F =  m  *  g

=>      F =  8200  *  9.8

=>      F =  80360 \  N

Generally the stress is mathematically represented as

         \sigma  =  \frac{F}{A}

=>      \sigma  =  \frac{80360 }{0.066}

=>      \sigma  =  1.218*10^{6} \  N/m^2

7 0
2 years ago
Time measurements from a stopwatch are not precise. Why not ?
fgiga [73]
Human error (average human reaction time is .2 seconds)
5 0
2 years ago
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