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4 years ago

Describe how fluid dynamics affect the marine ecosystem

Physics

2 answers:

padilas [110]4 years ago

8 0

Answer:

Explanation: Fluid dynamics is a branch of science which study about movement of fluids (liquid ans gas). With the help of fluid dynamics we can understand the evolution of star, ocean current,blood circulation etc. With help of fluid dynamics we can understand flow of water (tides, ocean currents) and its impact of marine ecosystem( corals, fish mangroves). Various marine phenomenon such as water upwelling affects the life of aquatic animal and marine ecosystem.

Sindrei [870]4 years ago

3 0

<span>important multidisciplinary issues including the dynamics and predictability of global climate and the sustainability of human use in coastal and estuarine regions.</span>

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A 1500 kg weather rocket accelerates upward at 10m/s2. It explodes 2.0 s after liftoff and breaks into two fragments, one twice

ladessa [460]

Answer:

Approximately $\rm 19.8\; m\cdot s^{-1}$ (downwards.)

Assumptions:

the rocket started from rest;
the gravitational acceleration is constantly $\rm -9.8\; m \cdot s^{-2}$ ;
there's no air resistance on the rocket and the two fragments.
Both fragments traveled without horizontal velocity.

Explanation:

The upward speed of the rocket increases by $\rm 10\; m \cdot s^{-1}$ . If the rocket started from rest, the vertical speed of the rocket should be equal to $\rm 20\; m \cdot s^{-1}$ .

The mass of the rocket (before it exploded) is 1500 kilograms. At 20 m/s, its momentum will be equal to $\rm 20 \times 1500 = 30,000\; kg \cdot m\cdot s^{-1}$ .

What's the initial upward velocity, $u$ , of the lighter fragment?

The upward velocity of the lighter fragment is equal to $v = 0$ once it reached its maximum height of $x = \rm 530\; m$ .

$v^2 - u^2 = 2g \cdot x$ .

$\begin{aligned}u &= \sqrt{v^2 - 2g\cdot x} \\ &= \sqrt{-2 (-9.8) \times 530}\\ &\approx \rm 101.922\; m \cdot s^{-1}\end{aligned}$ .

Mass of the two fragments:

Lighter fragments: $\displaystyle \frac{1}{1 + 2} \times 1500 =\rm 500\; kg$ .
Heavier fragment: $\displaystyle \frac{2}{1 + 2} \times 1500 =\rm 1000\; kg$ .

Initial momentum of the lighter fragment:

$m \cdot v = \rm 10192.2\; kg \cdot m \cdot s^{-1}$ .

If there's no air resistance, momentum shall conserve. The momentum of the lighter fragment, plus that of the heavier fragment, should be equal to that of the rocket before it exploded.

The initial momentum of the heavier fragment should thus be equal to the momentum of the two pieces, combined, minus the initial momentum of the lighter fragment.

$\rm 30000 - 10192.2 = 19807.8\;kg \cdot m \cdot s^{-1}$ .

Velocity of the heavier fragment:

$\displaystyle \rm \frac{19807.8\;kg \cdot m \cdot s^{-1}}{1000\; kg} \approx 19.8\; m \cdot s^{-1}$ .

5 0

4 years ago

Read 2 more answers

the velocity of a car increases from 2.0 m/s to 16.0 m/s in a time period of 3.5 s. what was the average acceleration? if an aut

Oksana_A [137]

The Average acceleration is 3.25m/s².

Acceleration is the change in velocity of the body with respect to time.

Where,

a= acceleration

u= initial speed

v= final speed

t= time

Initially, u = 2m/s

v = 16m/s

t = 3.5s

a = v-u/t

a = 16-2/3.5

a = 4m/s²

Then, u = 26m/s

v = 18m/s

t = 4s

a = v-u/t

a = 26-18/4

a =2 m/s²

Now, u = 0m/s

v = 20m/s

t = 2s

a = v-u/t

a = 20/2

a = 10m/s²

Finally, u = 20m/s

v = 10m/s

t = 2s

a = v-u/t

a = 10-20/2

a = -5m/s²

The average acceleration is the acceleration during the entire journey = 4+2+10-5/4

Average acceleration = 13/4m/s²

Average acceleration = 3.25m/s²

The Average acceleration is 3.25m/s²

Learn more about Acceleration here, brainly.com/question/2303856

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7 0

2 years ago

What should a coach do to get to know his athlete's better

brilliants [131]

They should do what people usually do to get to know each other better. have a conversation. share things about each other or ask questions about each other’s preferences or just anything in general

4 0

3 years ago

in which sample water do the water particle have more energy:5 grams of ice cubes at -10°c or 5 of a liquid water at 20°c?

Veseljchak [2.6K]

liquid water at 20 degrees Celsius

5 0

3 years ago

Think of an example of a chemical change that some people might think is NOT a chemical change. Explain why it is.

AlekseyPX

Answer:

Digesting food

Explanation:

I have people who think that its not true but it is

Hope this helped

7 0

3 years ago