Answer:
a) their amplitudes are the same their phase difference is constant their frequencies are the same
Explanation:
Coherent waves are the waves that have constant phase difference, equal frequency, amplitude and waveform.
Frequency denotes the number of cycles a wave completes in one second.
Amplitude is the maximum height that the wave reaches.
Waveform is the two dimensional representation of a wave in graphical form.
Answer:
<u>b. Third Law entropy </u>
Explanation:
<u>Third law entropy:</u> In physics, the term "third law entropy" or "the third law of thermodynamics" states that the specific entropy of a particular system at "absolute zero" is considered as a "well-defined constant". It occurs because any system at "zero temperature" tends to exists or persists in its "ground state" in order for the entropy to be determined or described only by the "degeneracy" of the given ground state.
<u>In the question above, the correct answer is option b.</u>
The answer is b because kinetic energy is the energy of motion, while potential energy is the energy stored in an object because of its position.
The magnitude of the force each hook exerts on the chain is 22.2N.
<h3>Solution:</h3>
Horizontal force on one half of the chain
cos 42° = ![T_{m}](https://tex.z-dn.net/?f=T_%7Bm%7D)
sin 42° = 20
= 29.9N
Now,
= 22.2N
To learn more about the magnitude of forces, refer
brainly.com/question/20905151
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Answer:
no deflection
Explanation:
current is flowing from west to east. As the magnetic field of a long wire carrying current is circular, its direction will be north below the wire and south above the wire (according to the right hand rule). So, when the compass is placed underneath the wire, it will still point towards the north direction.