3 years ago

Explain why an electromagnetic wave is a transverse was and not a compressional wave

1 answer:

4 0

Electromagnetic waves are transverse because the particles that are moving are perpendicular to the wave motion while compressional (also known as longitudinal) wave particles move parallel to the wave motion

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To change a tire, you need to use a jack to raise one corner of your car. While doing so, you happen to notice that pushing the

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Answer:

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3 years ago

A vertical spring with k=490N/m is standing on the ground. You are holding a 5.0kg block just above the spring, not quite touchi

WARRIOR [948]

Answer:

Compression in the spring, x = 0.20 m

Explanation:

Given that,

Spring constant of the spring, k = 490 N/m

Mass of the block, m = 5 kg

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Compression in the spring.

Solution,

Since the block is suddenly dropped on the spring gravitational potential energy of block converts into elastic potential energy of spring. Its expression is given by :

$mgx=\dfrac{1}{2}kx^2$

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x is the compression in the spring

$x=\dfrac{2mg}{k}$

$x=\dfrac{2\times 5\times 9.8}{490}$

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3 years ago