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Mnenie [13.5K]
3 years ago
13

Which of the following is a true statement?

Physics
2 answers:
Bad White [126]3 years ago
6 0

Answer:

c. Electromagnetic waves do not always need a medium to travel.

Explanation:

As the name suggests Electromagnetic waves consist of Electric and Magnetic fields.

Electromagnetic waves are transverse waves.

In a given medium Electromagnetic waves cannot vary in speed. However their wavelength and frequency can vary.

When an Electromagnetic wave travels through a medium It does not displace the medium. So, electromagnetic waves do not need a medium to travel.

forsale [732]3 years ago
4 0
C. Electromagnetic waves do not always need a medium to travel.

Since they are transverse waves they do not need a material medium.
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Aleksandr [31]
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Explain step by step
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Collisions with asteroids, comets and other stuff from space have been responsible for huge landmarks in our planet’s history: global shifts in climate, the creation of our moon, the reshuffling of our deepest geology, and the extinction of species.

Asteroid threats pop up in the news every now and then, but the buzz tends to fizzle away as the projectiles pass us by. Other times, as with the 2013 Chelyabinsk meteor in Russia, we don’t know they’re here until they’re here.
Perhaps most useful to remember is that when near-Earth objects (including asteroids, comets and meteoroids) enter the atmosphere, they’re called meteors; and if there’s anything left when they hit the ground, the resulting object is called a meteorite. We tend to focus on asteroids when talking about potential collisions, because they’re more likely to hit us than other stuff like comets, but still big enough to pose a threat.
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3 years ago
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Slav-nsk [51]
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3 years ago
Which data set has the largest range? A. 55, 57, 59, 60, 61, 49, 48 B. 21, 25, 14, 16, 29, 22, 20 C. 12, 15, 16, 19, 18, 15, 27
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2. the energy of the pendulum as it swings up
Nonamiya [84]
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sorry idek i learned this like 2 years ago
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Need help ASAP!! Thank you..
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