3 years ago

What is the difference between mechanical waves and electromagnetic waves?

Physics

1 answer:

Elina [12.6K]3 years ago

3 0

Answer:

Explanation: Mechanical waves need a medium to travel.

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A thin uniform rod of mass M and length L is bent at its center so that the two segments are perpendicular to each other. Find i

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$\frac{1}{12}ML^2$

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The moments of the whole object is the sum of the moments of the 2 segments of rod at their ends of which length is L/2 and mass M/2:

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With the aid of a suitable diagram, explain what is meant by an electromagnetic wave.

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Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.

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Sophie applies a 50 n force to push a box 2 meter across the floor calculate the smount of work done in the box

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Work done = force x distance

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Work done = 100J

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