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Mandarinka [93]
3 years ago
13

In a population of seals, most of the seals have similar coloring. However, one seal has albinism. This seal is white and is alm

ost completely blind. What is most likely the cause of this difference from the rest of the population?
Physics
2 answers:
harkovskaia [24]3 years ago
8 0
Gene mutation ................
Kazeer [188]3 years ago
5 0
Gene mutation is the cause.
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The instantaneous speed. 
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How does an ocean wave transfer energy across the ocean?
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The energy travels in a disturbance, in an ocean that disturbance is a wave, so the wave makes energy and moves it through the water
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Which of the following describes a closed conducting loop through which an electrical current can flow?
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3 years ago
Two point charges 3q and −8q (with q > 0) are at x = 0 and x = L, respectively, and free to move. A third charge is placed so
riadik2000 [5.3K]

Answer:

Explanation:

The unknown charge can not remain in between the charge given because force on the middle charge will act in the same direction due to both the remaining charges.

So the unknown charge is somewhere on negative side of x axis . Its charge will be negative . Let it be - Q and let it be at distance - x on x axis.

force on it due to rest of the charges will be equal and opposite so

k3q Q / x² =k 8q Q / (L+x)²

8x² = 3 (L+x)²

2√2 x = √3 (L+x)

2√2 x - √3 x = √3 L

x(2√2 - √3 ) = √3 L

x = √3 L / (2√2 - √3 )

Let us consider the balancing force on 3q

force on it due to -Q and -8q will be equal

kQ . 3q / x² = k3q  8q / L²

Q = 8q  (x² / L²)

so charge required = - 8q  (x² / L²)

and its distance from x on negative x side = √3 L / (2√2 - √3 )

3 0
3 years ago
What is the energy of a 9 kg brick that is
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Explanation:

formula for energy is k. e = ½mv²

m= 9

v= 75

k. e = ½×9×75 =337•5

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2 years ago
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