Physics Middle School

The distance between the 2nd compression and the 3rd compression in a longitudinal wave is 200 cm. Find the wavelength of the wave.
I need the answer with working and formula..
Class - 8, Ch:13 - Sound, NCERT, CBSE

Answers

Answer 1

Explanation:

[tex]3 \times 200 \div 5[/tex]

Answer 2

Answer:

The wavelength of the wave can be calculated using the equation λ = 2L/n, where L is the distance between two compressions and n is the number of compressions. In this case, the distance between compressions is 200 cm and the number of compressions is 3, so the wavelength is 133.3 cm.

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Why does a skydiver accelerate as she falls to the earth before opening her chute?
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D) because fewer forces are present to slow her down as she drops

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Answer:

The answer is D

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Answer:

Digital because it is more straightforward and modern

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Answers

Form it’s all about form when you shoot the ball should roll off your finger tips, and rotate

Answer:

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Answer:

a and b

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Answers

Answer:

crops

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10,000 Hertz

Answers

Answer:

100 Hertz

1,000 Hertz

10,000 Hertz

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Answers

Answer:

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Explanation:

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Source:

https://www.britannica.com/science/Coulombs-law

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Electrostatic force is a force of attraction or repulsion between two unlike or like charges respectively. when like charges come closer to each other, they gets repel by one another and it gets attracted for unlike charges. Force of attraction or repulsion between two point charges are given by coulomb's law, which states that "  The force of attraction or repulsion between two charges are directly proportional to product of magnitude of two charges and inversely proportional to square of distance between them.

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Answers

How does convergent evolution happen?

Convergent evolution is similar to parallel evolution, which occurs when two independent species evolve in the same direction and thus independently acquire similar characteristics; for instance, gliding frogs have evolved in parallel from multiple types of tree frog.

Convergent evolution is when different organisms independently evolve similar traits. For example, sharks and dolphins look relatively similar despite being entirely unrelated. ... Another lineage stayed put in the ocean, undergoing tweaks to become the modern shark.

Answer:

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Explanation:

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