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Hatshy [7]
3 years ago
7

Imagine that you're standing in a large room when a loud noise is made.You begin hearing a series of echoes.Which charactestics

of sound best explains what just happened
Physics
2 answers:
ivanzaharov [21]3 years ago
8 0

Answer: Reverberation

Explanation:

If a source of sound waves is surrounded by reflecting surfaces, the waves traveling outward from the source in all directions may be reflected from two or more different surfaces, or a single wave may be reflected first from one surface and then from another surface. As a result, a single sound can undergo several reflections, called reverberation. These reflections may or may not be distinct from one another.

e-lub [12.9K]3 years ago
5 0
The correct is  Reverberation. A reverberation is created when a sound or signal is reflected causing a large number of reflections to build up and then decay as the sound is absorbed by the surfaces of objects in the space – which could include furniture, people, and air. 
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B) Calculate the net work required to bring a 1300 kg car moving at 30 m/s to rest.
prohojiy [21]

I Lolo my name is keshav and

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2 years ago
A charge of 8.5 × 10–6 C is in an electric field that has a strength of 3.2 × 105 N/C. What is the electric force acting on the
Sonja [21]

2.72 N

Explanation:

Step 1:

From the basic formula in electrostatics

F = E * q

where F = Force due to charges

           E = Electric field strength

           q = Charge

Step 2:

From the given question

q= 8.5*10^{-6} C

E = 3.2 * 10^{5} N/C

F = 8.5 * 10^{-6} * 3.2 * 10^{5} = 2.72 N

8 0
3 years ago
a student solving for the acceleration of an object has applied appropriate physics principles and obtained the expression a
kozerog [31]

Given:

Force, f = 12 \frac{kg-m}{sec^{2} }

Mass, m = 7 kg

Acceleration, a_{1} = 3\;\frac{m}{sec^{2} }

a = a_{1}+\frac{f}{m}

Substitute\;the\;values\;of\;f,\;m\;and\;a_{1}\;in\;the\;above\;equation,

a = 3+\frac{12}{7}

a = 3 + 1.714

Therefore, the acceleration is,

a = 4.714\;\frac{m}{sec^{2} }

<h3>Explain Acceleration?</h3>

An object's rate of changing its velocity is known as its acceleration, which is a vector quantity. If an object's velocity is changing, it is accelerating. When anything moves faster or slower in a straight line, it is said to have been accelerated. Even if the speed is constant, motion on a circle accelerates because the direction is always shifting.

To learn more about Acceleration, visit:

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3 0
1 year ago
Does the area of contact effect the frictional force . explain?​
OlgaM077 [116]

Answer:

The force due to friction is generally independent of the contact area between the two surfaces. This means that even if you have two heavy objects of the same mass, where one is half as long and twice as high as the other one, they still experience the same frictional force when you drag them over the ground.

Plz mark 5 star, thanks, and brainliest

3 0
3 years ago
Which determines the reactivity of an alkali metal?
shutvik [7]

Answer:

A

Explanation:

I'm pretty sure it's A because when you look up the properties of alkali metal it states stuff about its melting points and what to expect. (correct me if I'm wrong but I had this same question on a test and I'm sure this is the answer lol)

8 0
3 years ago
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