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Sloan [31]
3 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]3 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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A spherical shell contains three charged objects. The first and second objects have a charge of − 14.0 nC and 33.0 nC , respecti
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Explanation:

Formula depicting relation between total flux and total charge Q is as follows.

              \phi  = \frac{Q}{\epsilon_{o}}    (Gauss's Law)

Putting the given values into the above formula as follows.

            Q = \phi \times \epsilon_{o}

                = -953 Nm^{2}/C \times 8.854 \times 10^{-12}

                = -8.4 \times 10^{-9} C

                = -8.4 nC

Therefore, when the unknown charge is q  then,

         -14.0 nC + 33.0 nC + q = -8.4 nC

               q = -27.4 nC

Thus, we can conclude that charge on the third object is -27.4 nC.

7 0
3 years ago
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Evgen [1.6K]

Answer:

factory:

-mechanical energy

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Explanation:

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Which statement correctly compares the valence electrons for atoms of francium (Fr) and barium (Ba)?
Sauron [17]

Answer:

Francium has fewer valence electrons, but they are in a higher energy level

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The illustration shows a rollercoaster and indicates four different positions the car might be at as it moves along the track. A
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Answer:

Point a

Explanation:

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In the attached figure, the maximum height is shown at point (a). It means it will have maximum potential energy at a as compared to b,c and d.

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