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andrew-mc [135]
3 years ago
13

Green light travels by what type of wave? (2 points) a Conductive b Electronic c Conducive d Electromagnetic

Physics
2 answers:
antiseptic1488 [7]3 years ago
8 0

Answer: d. Electromagnetic wave

Explanation:

Light is an electromagnetic wave, no matter is wavelength or color.

In this sense, the main characteristic of this type of wave is that it can propagate trhough vacumm, it is not necessary a medium. In addition, electromagnetic waves are transversal waves, this means the electric field oscillates in all normal directions to the direction of wave propagation.

Rom4ik [11]3 years ago
4 0

Answer:

d) Electromagnetic waves

Explanation:

As we know that electromagnetic waves are of 7 types as per their energy range

these are as following

1) Gamma Rays

2) X Rays

3) Ultraviolet rays

4) Visible light (VIBGYOR all colors)

5) Infrared waves

6) microwaves

7) Radio waves

Since all type of visible light exist in the range of electromagnetic waves

so we can say that Green light travels as per nature of electromagnetic waves

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(1 point) A projectile is fired from ground level with an initial speed of 600 m/sec and an angle of elevation of 30 degrees. Us
konstantin123 [22]

Answer:

(a) The range of the projectile is 31,813.18 m

(b) The maximum height of the projectile is 4,591.84 m

(c) The speed with which the projectile hits the ground is 670.82 m/s.

Explanation:

Given;

initial speed of the projectile, u = 600 m/s

angle of projection, θ = 30⁰

acceleration due to gravity, g = 9.8 m/s²

(a) The range of the projectile in meters;

R = \frac{u^2sin \ 2\theta}{g} \\\\R = \frac{600^2 sin(2\times 30^0)}{9.8} \\\\R = \frac{600^2 sin (60^0)}{9.8} \\\\R = 31,813.18 \ m

(b) The maximum height of the projectile in meters;

H = \frac{u^2 sin^2\theta}{2g} \\\\H = \frac{600^2 (sin \ 30)^2}{2\times 9.8} \\\\H = \frac{600^2 (0.5)^2}{19.6} \\\\H = 4,591.84 \ m

(c) The speed with which the projectile hits the ground is;

v^2 = u^2 + 2gh\\\\v^2 = 600^2 + (2 \times 9.8)(4,591.84)\\\\v^2 = 360,000 + 90,000.064\\\\v = \sqrt{450,000.064} \\\\v = 670.82 \ m/s

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Andrei [34K]

Answer:

Im pretty sure 1 is gravity, 2 is force

Explanation:

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Answer:

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Answer:

I Think its ABC

Explanation:

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Olegator [25]

Answer:

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Explanation:

hope this helps!

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