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4 years ago

Where in a river would you find fish that are adapted to low light and low oxygen levels?

Physics

2 answers:

JulijaS [17]4 years ago

7 0

No place in the river is characterized like this

Trava [24]4 years ago

4 0

The answer to this question would be "Near The Mouth"
-Hope this is the answer your looking for.

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How dose a black hole form.

gladu [14]

I don't personally know the answer, but this article should help!

http://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-a-black-hole-58.html

3 0

3 years ago

Read 2 more answers

What two pieces of information are needed to determine the diameter of a faraway object?

xxTIMURxx [149]

Distance and angular size

4 0

3 years ago

If two opposing forces are equal, then the net force is 0 N.<br><br> true or false?

Fofino [41]

Answer:

false

Explanation:

6 0

3 years ago

To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. In one such ep

I am Lyosha [343]

Answer:

Part a)

$\theta = 48 degree$

Part b)

$v = 13.45 m/s$

Explanation:

Part a)

mass of the Falcon bird is given as

$m = 600 g$

initial speed of the bird is

$v_i = 20 m/s$

final speed of the bird is given as

$v_f = 5 m/s$ (opposite direction)

So here the impulse given by falcon bird is given as

$I = m(v_f - v_i)$

$I = 0.600(20 + 5)$

$I = 15 kg m/s$

now the final momentum of Raven bird in perpendicular direction is given as

$I = mv_y$

$15 = 1.50 v_y$

$v_y = 10 m/s$

now the change in the angle of the raven bird is given as

$tan\theta = \frac{v_y}{v_x}$

$tan\theta = \frac{10}{9}$

$\theta = 48 degree$

Part b)

Final speed of the raven bird is given as

$v^2 = v_x^2 + v_y^2$

$v^2 = 9^2 + 10^2$

$v = 13.45 m/s$

5 0

3 years ago

6.There are four mixtures A, B, C and D. The mixture A contains sand and sugar, mixture B contain chalk powder and salt, mixture

vladimir1956 [14]

Answer:

Mixture C (salt and sugar)

Explanation:

Both salt and sugar can dissolve in water. And you can't just separate the mixture by filtering it like you could in the other mixtures.

8 0

3 years ago