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KengaRu [80]
4 years ago
9

When a sound wave strikes a smooth, hard surface, the wave is

Physics
2 answers:
NNADVOKAT [17]4 years ago
5 0
The wave is reflected
Kipish [7]4 years ago
3 0
The wave will be reflected back, depending on the angle it hits, or it will bounce (but not exactly using the same route)

hope this helps
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Why are lights in house wired in house wired in a parallel or nothing series ​
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Parallel circuits are mostly used in houses because if you turn one light off the rest stay on. While with a series circuit, if you turn one light off, all the lights turn off as well because they are all connected to one circuit (series). Parallel is usually 2 or more circuits which is why it lets you turn one thing off and everything stays on.
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List the 4 things technology can be.
inessss [21]

Technology can be the four things listed below...

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6 0
3 years ago
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The acceleration due to gravity is lower on the Moon than on Earth. Which one of the following statements is true about the mass
Helga [31]
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4 years ago
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A summary of a source is usually
Mekhanik [1.2K]

Answer:

A shorter than the original source and in the researcher's words

Explanation:

The summary is an abridged version of the original source and in the researcher's own very words.

Summaries gives an over-arching perspective and excludes implicit details from a given text.

A summary should not be detailed and must avoid overt illustrations. They must capture the true essence of piece leaving out flowery details.

A summary should be lesser in length than the original piece. Any third party reader should immediately be able to grab the details of the original piece from the summary.

5 0
3 years ago
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Humpback whales sometimes catch fish by swimming rapidly in a circle, blowing a curtain of bubbles that confuses a school of fis
andre [41]

Answer:

1.2 x 10^4 N

Explanation:

The centripetal force of a body moving in a circle is given by:

Centripetal force = \frac{Mv^2}{r}

where M = mass of the object, v = velocity with which the object is moving, and r = radius of the circle.

In this case, M = 25,000 kg, v = 2.0 m/s, and r = 8.2 m. Hence;

Centripetal force generated by the whale = 25,000 x 2^2/8.2

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8 0
3 years ago
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