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dimulka [17.4K]
3 years ago
15

The sound level in a certain seat at the movie theater is higher than the level in the surrounding seats. Which wave interaction

can help to explain why?
Absorption
Reflection
Destructive interference
Constructive inference
A p e x
Physics
2 answers:
salantis [7]3 years ago
7 0

Answer:

constructive interference

Explanation:

a p e x :))

Grace [21]3 years ago
6 0

Answer: constructive interference

Explanation: plz mark Brainly

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A Rankine oval is formed by combining a source-sink pair, each having a strength of 36 ft2/s and separated by a distance of 15 f
Rashid [163]

Answer:

0.28 ft

Explanation:

We are given that

Strength=m=36ft^2/s

Distance between source and sink=15 ft

Distance between the sink of the source and origin=a=\frac{15}{2} ft

Uniform velocity, U=12 ft/s

We have to find the length of the oval.

Formula to find the half length of the body

\frac{l}{a}=(\frac{m}{\pi Ua}+1)^{\frac{1}{2}}

Where a=Distance between sink of source and origin

U=Uniform velocity

m=Strength

l=Half length

Using the formula

\frac{l}{\frac{15}{2}}=(\frac{36}{\pi\times 12\times \frac{15}{2}}+1)^{\frac{1}{2}}

l=\frac{2}{15}(\frac{36}{\pi\times 12\times \frac{15}{2}}+1)^{\frac{1}{2}}

l=0.14

Length of oval=2l=2(0.14)=0.28 ft

8 0
3 years ago
calcula la potencia por hora de un radiador, sabiendo que esta conectado a un contacto común 110 v. y requiere 20 Amp.
Ira Lisetskai [31]

calculate the power per hour of a radiator, knowing that it is connected to a common 110 v contact. and requires 20 Amp.

Answer:

2.2kWh

Explanation:

Given parameters:

Potential difference  = 110v

Current  = 20A

Unknown:

Power  = ?

Solution:

To solve this problem, we use the expression below:

        Power  = IV

 Power  = 110 x 20  = 2200W

  This is therefore 2.2kW

 Power per hour  = 2.2kWh

8 0
3 years ago
The force between to objects of charge +Q and -2 Q, respectively, is measured as -2F. If the charge on the first object is doubl
Sloan [31]

The force between to objects of charge +Q and -2 Q, respectively, is measured as -2F. If the charge on the first object is doubled and the distance between the objects is doubled

<u>b.-2f </u>

6 0
4 years ago
Read 2 more answers
Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?
Paul [167]

It's easy to roll the the basket ball than bowling ball

It is because bowling ball is solid spherical ball which will have less moment of inertia

its moment of inertia is given as

I = \frac{2}{5}mR^2

While for the hollow ball like basketball we know that moment of inertia is given as

I' = \frac{2}{3}mR^2

so here we can see for the same mass if we take basketball then its moment of inertia is more so it is easy to roll basket ball then to roll bowling ball.

So it is easy to roll basket ball then rolling ball

6 0
4 years ago
Read 2 more answers
If earth increase the distance from the sun, what will happen to the period of orbi t(the time it takes to complete one revoluti
Mandarinka [93]

The period of the orbit would increase as well

Explanation:

We can answer this question by applying Kepler's third law, which states that:

"The square of the orbital period of a planet around the Sun is proportional to the cube of the semi-major axis of its orbit"

Mathematically,

\frac{T^2}{a^3}=const.

Where

T is the orbital period

a is the semi-major axis of the orbit

In this problem, the question asks what happens if the distance of the Earth from the Sun increases. Increasing this distance means increasing the semi-major axis of the orbit, a: but as we saw from the previous equation, the orbital period of the Earth is proportional to a, therefore as a increases, T increases as well.

Therefore, the period of the orbit would increase.

Learn more about Kepler's third law:

brainly.com/question/11168300

#LearnwithBrainly

5 0
4 years ago
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