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svp [43]
3 years ago
15

Jane and John Doppler effect

Physics
1 answer:
UkoKoshka [18]3 years ago
4 0

Answer:

To summarize, <em><u>Jane's star</u></em> has a <em><u>red</u></em> light and <em><u>is traveling towards</u></em> the <em><u>Earth</u></em> while <em><u>John's star </u></em>has a <em><u>blue</u></em> light and <em><u>is traveling away</u></em> from the <em><u>Earth</u></em>. This is a <em><u>prime example</u></em> of the <em><u>Doppler Effect</u></em> in <em><u>motion</u></em>. The stars <em><u>look different </u></em>because <em><u>they are traveling in different directions.</u></em>

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The control group is the independent variable and the experimental group is the dependent due to change during the experiment. The experimental group will usually rely on another variable in the experiment for change.
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3 years ago
You perform an experiment with a long column of air and a tuning fork. The column of air is defined by a very long vertical plas
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Answer:

\lambda=4L=1.33m

v=343m/s

Explanation:

We have to take into account the expressions

f=\frac{2n+1}{4}\frac{v_s}{L}\\L=(2n+1)\frac{\lambda}{4}

if we assume that 256Hz is the fundamental frequency we have

f=\frac{1}{4}\frac{v_s}{L}\\\\L=\frac{1}{4}\frac{v_s}{f}=\frac{1}{4}\frac{343\frac{m}{s}}{256Hz}=0.33m

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hope this helps!!

6 0
3 years ago
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6 0
3 years ago
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Answer:

500 kg

Explanation:

It is given that,

The mass of a open train car, M = 5000 kg

Speed of open train car, V = 22 m/s

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We need to find the mass of water collected in the car. It is based on the conservation of momentum as follows :

initial momentum = final momentum

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So, 500 kg of water has collected in the car.

3 0
3 years ago
A helium nucleus contains two protons and two neutrons. The mass of the helium nucleus is greater than the combined masses of tw
dsp73

Answer:

False

Explanation:

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