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mario62 [17]
3 years ago
15

(PLEASE HELP) Identify the following as electromagnetic (E) or mechanical (M) waves.

Physics
2 answers:
tatyana61 [14]3 years ago
3 0
Sound waves (m)

water waves (m)

radio waves (e)

ultraviolet (e)

waves in a wheat field (m)
EastWind [94]3 years ago
3 0
<h3><u>Answer;</u></h3>

<u>Mechanical waves; </u>

  • sound waves
  • waves in a wheat field
  • water waves

<u> Electromagnetic waves</u>

  • Radio waves
  • Ultraviolet
<h3><u> Explanation;</u></h3>
  • A wave is a transmission of a disturbance from one place, the source to another.
  • Waves can be classified as mechanical waves or electromagnetic waves depending on the requirement of a material medium.
  • <em><u>Mechanical waves </u></em><em><u>are those waves that require a material medium for transmission, they include, sound waves, water waves, etc. The transmission of these waves is by vibration of particles in the medium.</u></em>
  • <em><u>Electromagnetic waves</u></em><em><u> are those waves that do not require a material medium for transmission.They include, radio waves, microwaves, and all the waves in the electromagnetic spectrum.</u></em>

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Answer:

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Explanation:

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t = 12/1.5

t = 8 seconds

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B.) For the cyclist moving at constant speed, acceleration a = 0. Using second equation of motion

h = Ut + 1/2at^2

Since a = 0, the equation is reduced to:

h = Ut.

Also, for the bus,

h = Ut + 1/2at^2

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Ut = Ut + 1/2at^2

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0.75t = 12

t = 12/0.75

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C.) Use third equation of linear motion.

V^2 = U^2 + 2as

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12^2 = 0 + 2 × 1.5 S

144 = 3S

S = 144/3

S = 48 m

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