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Sloan [31]
4 years ago
8

To take off from the ground, an airplane must reach a sufficiently high speed. The velocity required for the takeoff, the takeof

f velocity, depends on several factors, including the weight of the aircraft and the wind velocity.
Physics
1 answer:
il63 [147K]4 years ago
6 0

<h2> The potential and kinetic energy of airplane are affected by these factors </h2>

Explanation:

When airplane rises up , it requires potential energy . This potential energy can be taken from the kinetic energy of airplane .

Thus if the speed of wind is larger , it can either oppose the motion of velocity or can favour the velocity of airplane  . By which its kinetic energy is effected .

If the weight of airplane is changed , it will effect the potential energy required . Thus heavier plane requires higher potential energy for attaining the same height .

Thus these two factor has important role in the flight of airplane .

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Use this technique to find a formula for the intensity I of a sound, in terms of the sound level β and the reference intensity I
denis23 [38]

Answer:

I = I_o (10^{\frac{\beta}{10}})

Explanation:

As we know that sound level is given as

\beta = 10 Log (\frac{I}{I_o})

so here we have

\frac{\beta}{10} = Log(\frac{I}{I_o})

now we can take anti log both sides

10^{\frac{\beta}{10}} = \frac{I}{I_o}

so we have

I = I_o (10^{\frac{\beta}{10}})

so above is the expression for the intensity of sound in terms of reference intensity and sound level

4 0
3 years ago
A passenger in a car is holding an open water bottle when the car stops suddenly. Why does the water in the bottle splash out wh
OlgaM077 [116]

Answer:

The answer is It has inertia

Explanation:

I just got it correct on E2020

8 0
4 years ago
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What is the diamnsanion of force
tensa zangetsu [6.8K]

Answer:

spelling ?

Explanation:

6 0
3 years ago
Is there a difference between potential difference, voltage and EMF?
Andreas93 [3]
There may be an esoteric technical shade or nuance of difference.  But I've been an electrical engineer for 40 years now, and have always used them interchangeably.

(I would have answered your question by saying "No.", but this website won't accept an answer that's less than 200 characters long.)
8 0
4 years ago
Nets used to catch falling boulders on the side of rocky hillside roadways
Natalija [7]

Answer:

more time to change the momentum of falling rocks

Explanation:

Momentum is related to "mass in motion." So, if an object is moving, then it has momentum as it has its mass in motion. The amount of momentum is dependent upon how much and how fast the object is moving.

If an object is moving slowly, it means that the object is losing momentum.

Nets used to catch falling boulders on the side of rocky hillside roadways  are more effective than rigid fences because their breakage is reduced by more time to change the momentum of falling rocks.

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4 years ago
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