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stira [4]
3 years ago
6

EZ QUESTION!!! Why are bananas curved?

Physics
2 answers:
ASHA 777 [7]3 years ago
6 0
Through cell division, banana plants produce leaves that develop into a pseudostem and produce fruit. The bud forms in the bottom part of the plant and grows up through the centre of the pseudostem to the top. The arrow-shaped bud pushes through the top of the plant and its weight then causes it to change direction and grow towards the ground.

Bananas go through a unique process known as negative geotropism. Instead of continuing to grow towards the ground, they start to turn towards the sun. The fruit grows against gravity, giving the banana its familiar curved shape.

But why? The answer lies in the botanical history of the banana. It originated in the middle layer of the rainforest, where there is little sunlight. If the fruit were to grow towards the small amount of light that penetrates sideways through the vegetation, the plant could overbalance and topple over.

So bananas developed a way of growing towards the light without destabilising the plant.

A developing flower. A developing flower.
The flower grows towards the ground. The flower grows towards the ground.
The tiny banana fruits can already be seen under the leaves. The tiny banana fruits can already be seen under the leaves.
Beneath each petal is a row of banana fruits. Beneath each petal is a row of banana fruits.
The developing fruits. At this stage they are still growing downwards. The developing fruits. At this stage they are still growing downwards.
Negative geotropism comes into play and the bananas start to grow against gravity ... Negative geotropism comes into play and the bananas start to grow against gravity ...
... towards the sky. ... towards the sky.
And that’s why bananas are curved! And that’s why bananas are curved!

Btw I think bananas are nasty
Ksenya-84 [330]3 years ago
5 0

Answer:

Bananas go through a process called ‘negative geotropism’ so they can reach the sun

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A total electric charge of 6.75 nC is distributed uniformly over the surface of a metal sphere with radius 20.0 cm. If the poten
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Answer:

a) 60 V

b) 125 V

c) 125 V

Explanation:

<u>Given</u>

We are given the total electric charge q = 6.75 nC = 6.75x 10^-9 C distributed uniformly over the surface of a metal sphere with a radius of R = 20.0 cm = 0.020 m.  

<u>Required </u>

We are asked to calculate the potential at the distances

(a) r = 10.0 cm

(b) r = 20.0 cm

(c) r = 40.0 cm  

<u>Solution</u>

(a) Here, the distance r > R so, we can get the potential outside the sphere (r > R) where the potential is given by

V = q/4\pi∈_o                       (1)

r is the distance where the potential is measured and the term 1/4\pi∈_o equals  9.0 x 10^9 Nm^2/C^2. Now we can plug our values for q and r into equation (1) to get the potential V where r = 0.10 m  

V= 1*q/4\pi∈_o*r

 =60 V

(b) Here the distance r is the same for the radius R, so we can get the potential inside the sphere (r = R) where the potential is given by  

V = 1*q/4\pi∈_o*R                (2)    

Now we can plug our values for q and R into equation (2) to get the potential V where R = 0.20 m  

V = 1*q/4\pi∈_o*R

    = 125 V

(c) Inside the sphere the electric field is zero therefore, no work is done on a test charge that moves from any point to any other point inside the sphere. Thus the potential is the same at every point inside the sphere and is equal to the potential on the surface. and it will be the same as in part (b)  

V= 125 V

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Answer:

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The ball has momentum which is a form of kinetic energy.

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When the compressor of an air conditioner starts up, it draws a current of 50 A. If the start-up time is 0.60 s, then the amount
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Answer:

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Explanation:

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Now, we know that, charge drawn in through a cross sectional area of the circuit is given as:

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Now, plug in 50 A for 'I', 0.60 s for 't' and solve for 'q'. This gives,

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