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NeTakaya
3 years ago
14

What is the displacement if Ray runs 30ft north, 30ft west, and then 30ft south.

Physics
1 answer:
EastWind [94]3 years ago
6 0

His displacement is 30ft west.

Unless he started on the south pole, then his displacement is 0 - he ends up where he  started, on the south pole.

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A middle-age star that burns hydrogen is a A.neutron star B.white dwarf c.main sequence star D.pusar
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Hello!

The correct answer is C.

As we should know, a neutron star is a small cluster of neutrons. It is neither middle aged or able to burn hydrogen.
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I hope I helped!
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3 years ago
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A physics professor demonstrates the Doppler effect by tying a 600 Hz sound generator to a 1.0-m-long rope and whirling it aroun
nalin [4]

Answer:

Therefore the the highest frequency is 620Hz and lowest frequency is 580Hz

Explanation:

Given data

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RPM=100 rpm

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Substitute the given values

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For approaching generator the frequency is calculated as:

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On the other hand,for the receding generator,Doppler's effect is expressed as:

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Therefore the the highest frequency is 620Hz and lowest frequency is 580Hz

8 0
3 years ago
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