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Julli [10]
3 years ago
10

If an open pipe of length vibrates in fundamental mode, then pressure variation is maximum

Physics
2 answers:
KIM [24]3 years ago
8 0

Answer:

(B) at the middle of the pipe

Explanation:

In the case of an open pipe which vibrates in fundamental mode, an anti-node is formed at the middle of the pipe, here the amplitude of the wave is maximum. Hence, the pressure variation is also maximum at the middle.

Mars2501 [29]3 years ago
8 0

Answer:

at the middle of pipe

Explanation:

ANSWER WILL BE AT THE MIDDLE OF THE PIPE

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A donkey starts from rest and accelerates for 6.7 s at a rate of 1.6 m/s².
vitfil [10]

The maximum speed of the donkey is 10.72m/s

The question is based on the principle of motion in one dimension and hence formulas of motion in one dimension can be applied.

It is given that donkey attains an acceleration of 1.6 m/s^2

The time taken to accelerate  to given speed is 6.7 seconds

We use the formula v=u + at to find the fastest speed

v is the final or maximum speed

u is the initial speed which in this case is 0 as the donkey is at rest

a is the acceleration of the donkey

t is  the time taken in seconds

v = u + at

v= 0 + 1.6 x 6.7

 = 10.72 m/s

Hence the donkey obtains the speed of 10.72 m/s

For further reference:

brainly.com/question/24478168?referrer=searchResults

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3 0
2 years ago
If the star Sirius emits 23 times more energy than the Sun, why does the Sun appear brighter in the sky?
Ganezh [65]

Answer:

As b ∝ (L/r²) and

the distance of the sun from the earth is 0.00001581 light years

and

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the Sun appear brighter in the sky

Explanation:

The brightness (b) is directly proportional to the Luminosity of the star (L) and inversely proportional to the square of the distance between the star and the observer (r).

thus, mathematically,

b ∝ (L/r²)

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now,

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and

the distance of the Sirius from the earth is 8.6 light years

thus,

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hence, the sun appears brighter

5 0
3 years ago
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The observable universe is still huge, but it has limits. because it's most likely like an plane all round.

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6 0
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NikAS [45]

Answer:

The forces creating the net force must lie in the same direction.

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newton's second law states that the net force acting on the body is equal to the product of mass and the acceleration of the body.

If there are several forces acting on the body in different directions, then we have to find teh net force by using the vector sum and then find the acceleration.

It is not necessary that all the forces acting in the same direction.

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What is acceleration measured in?
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This I what it showed when I looked it up so if your writing this down try and put some in your own words
6 0
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