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gladu [14]
3 years ago
8

How does a sound wave differ from an electromagnetic wave

Physics
2 answers:
Damm [24]3 years ago
8 0
A sound wave is very low frequency as it starts off on the Wave spectrum, You can tell if the frequency is low or high by the wavelength.

the wavelength is how wide the wave is from crest to crest (crest: the top of the wave)

If the wavelength is very long, it means that there is low frequency, the closer the crests are the higher frequency there is throughout the wave!

So sound waves are much less frequent or concentrated, than Electromagnetic waves.

If you don't understand this, go look at some pictures of the wave spectrum. It should help a bit!

http://hyperphysics.phy-astr.gsu.edu/hbase/ems1.html
vladimir1956 [14]3 years ago
7 0
A sound wave is a mechanical wave and cannot travel through empty space. It needs to travel through a medium of some kind. To remember this, the saying "no one can hear you scream in space" is somewhat helpful considering sound waves cannot travel through an empty vacuum like such. An electromagnetic wave ( EM wave ) does not need a medium to travel and can travel freely through empty space.
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Which is a unit of pressure? A. gram B. Kilopascals C. Newtons D. Kilograms
Finger [1]

B. Kilopascals.

A kilopascal equals to 1,000 pascals; and a pascal is equal to a force of 1 newton per square meter.

Meanwhile,

- a gram and a kilogram are both units of measurement for mass, and

- a newton is a unit of measurement for force.

6 0
3 years ago
A sperm whale can accelerate at about 0.0800 m/s 2 0.0800 m/s 2 when swimming on the surface of the ocean. How far will a sperm
Norma-Jean [14]

Answer:

26.64 m

Explanation:

Given the following :

Acceleration at ocean surface = 0.0800 m/s²

Distance covered if initial speed = 0.700 m/s and accelerates to a speed of 2.18m/s

Using the equation :

v² = u² + 2as

Where ;

v = final velocity ; u = initial velocity ; a = acceleration ; s = distance covered

Therefore,

v² = u² + 2as

2.18² = 0.7² + (2 × 0.08 × s)

4.7524 = 0.49 + 0.16s

4.7524 - 0.49 = 0.16s

4.2624 = 0.16s

s = 4.2624 / 0.16

s = 26.64 m

7 0
3 years ago
Identify the electromagnetic waves with the longest wave lenths and the electromagnetic wave with the shortest wave lenghts
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4 0
3 years ago
Resistivity of metallic wire
bixtya [17]

Answer:

nature of material

hope this help you

6 0
3 years ago
The plates of a parallel plate capacitor each have an area of 0.40 m2 and are separated by a distance of 0.02 m. They are charge
poizon [28]

Answer:

 E = -1.5 10⁵ N / C

Explanation:

In a capacitor the electric field is uniform between the blades, therefore we use the expression

                   V = - E s

                   E = - V / s

let's calculate

                   E = - 3000 / 0.02

                   E = -1.5 10⁵ N / C

the sign indicates that the field and the potential are opposite, when one increases the gold decreases

6 0
3 years ago
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