Answer:
Atomic masses do not include masses of neutrons
Answer:
Number of turns in secondary is 20
Current in primary is 0.96 A
Explanation:
We have given number of turns in primary
Voltage across primary of transformer
Current in secondary coil
Voltage across secondary
For transformer we know that
So
So number of turns in primary is 20
Now
Current in primary of transformer is 0.96 A
Answer:
20.996 m
Explanation:
Given:
Initial velocity,
Final velocity,
Total time taken, s.
∴ Acceleration is given as,
m/s²
Now, using Newton's equation of motion, we find the displacement.
Displacement is given as:
Plug in 0 for , 4.91257 for and 1.74 for . Solve for .
This gives,
Therefore, the train's displacement in the first 4.91257 s of motion is 20.996 m.
The speed of the wave in the rod is
5044m/s
<h3>
What is sound wave?</h3>
A sound wave is the pattern of disruption brought on by the movement of energy moving through a medium as it propagates away from the source of the sound (such as air, water, or any other liquid or solid substance). Pressure waves are produced when an item vibrates, such as a ringing phone, and these waves are known as sound waves. The surrounding medium's particles are disturbed by the pressure wave, and those particles disrupt the particles next to them, and so on. Like ocean waves, the disturbance's pattern causes outward movement in all directions. Usually in all directions and with decreased intensity as it gets further away from the source, the wave transmits the sound energy through the medium.
To know more about sound wave, visit;
brainly.com/question/21995826
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Answer: London dispersion forces (i.e LDF), also known loosely Van dear Waals forces.
Explanation: The London dispersion forces is named after the German - American physicist called Fritz London.
The London dispersion forces describes the interaction between two atoms A and B after London discovered the "quantum mechanical theory".
London dispersion theory is similar to the quantum mechanical theory of "light dispersion", that is why it is called "dispersion effect". In Physics,dispersion can be explained as the variation of a quantity with frequency, which is the fluctuation of the electrons in the case of the London dispersion.