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2 years ago

SOMEONE PLEASE HELP MEEEEEEE

Physics

1 answer:

julia-pushkina [17]2 years ago

8 0

Answer:

The movement of Tectonic plates.

Explanation:

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A propagating wave in space with electric and magnetic components. These components oscillate at right angles to each other. It

zimovet [89]

Answer:

electromagnetic

Explanation:

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4 years ago

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Scientific knowledge is generally considered to have a positive effect on society. In which situation would scientific knowledge

attashe74 [19]

Scientific knowledge itself cannot have a positive or negative impact on society per se. What can have a negative or positive impact is how this knowledge is being used.

While we all enjoy a beter life due to advancements in medicine and technology for example, this was because people decided they would put certain scientific discoveries into practice and spread them among the people.

The same thing can also be said for negative scientific discoveries. While energy produced in atomic power plants per se isn't harmful, when making an atomic bomb out of it, it can be disastrous. It was the intention of doing something evil with it that might have had a negative impact on society, not the knowledge itself.

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3 years ago

"determine the resultant internal loadings acting at the cross sections at points f and g of the frame. set θ = 27º and t = 178

Leviafan [203]

Hi you didn't provide any images to solve the question, hence I am going to solve a different question of same concept so you can have an idea how to tackle such types of questions.(please refer to the attachment for question)

Answer:

<u> Please refer to the attachment for answers and explanation</u>

Explanation:

<u> Please refer to the attachment for answers and explanation</u>

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4 years ago

What happened to the pod during those seconds when communication was lost?

Paraphin [41]

Answer:

it blew up

Explanation:

i don't know

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3 years ago

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In addition to producing images, ultrasound can be used to heat tissues of the body for therapeutic purposes. An emitter is plac

Dafna11 [192]

Answer:

The answer is Yes, the standing wave length with 5 anti-nodes will be created

Explanation:

To answer this question, we recall the frequencies of standing wave modes in a closed - closed tube of length (L).

The formula will now be:

Fₙ = n ( v/2L)

Where n = n is equal to the number of anti-nodes

and

lambda = 2L/n for standing waves in a closed tube where n is equal to the number of nodes

Now assuming the nodes are :

Where n = 1, 2, 3, 4, 5, ............

Now, we try to make "n" the subject of formula

Fₙ = n ( v/2L)

So therefore, the number of nodes produced will be

n = 2L Fₙ / v

2 x 0.55 x 10⁻² x 0.7 x 10⁶ / 1540

Calculating the above further, we arrive at = 5.

Now to answer the question,

The answer is Yes, the standing wave length with 5 anti-nodes will be created

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3 years ago