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2 years ago

Choose all the answers that apply. Ecosystems _____.

Physics

2 answers:

lana [24]2 years ago

3 0

The answers are; B, C & E.

An ecosystem defines all the organism and their interaction with their environment (inducing abiotic factors such as energy from the sun and water). Biomes (which can be defined as a part of the environment that more or less share the same environmental conditions) make up an ecosystem.

Assoli18 [71]2 years ago

3 0

Answer:

Everything except maybe c.

Explanation: What does your backyard have in common with the Pacific Ocean? It's hard to imagine that they could possibly have anything in common, right? Well, they are both ecosystems. They both have living organisms and non-living factors such as animals and oxygen. An ecosystem is a group of living organisms and the environment that surrounds them. They can be as small as a puddle or as large as the entire earth. Ecosystems can be natural, like your backyard, or artificial, such as an aquarium. In this lesson. you will learn about matter and energy in an ecosystem.

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The drawing shows a side view of a swimming pool. The pressure at the surface of the water is atmospheric pressure. The pressure

Nikitich [7]

Answer:

A) To true. he pressure at the bottom of the pool decreases by exactly the same amount as the atmospheric pressure decreases

Explanation:

Let us propose the solution of this problem before seeing the final statements. The pressure increases with the depth of raposin due to the weight of water that is above the person and also the pressure exerted by the atmosphere on the entire pool, the equation describing this process is

P = $P_{atm}$ + ρ g y

Where $P_{atm}$ is the atmospheric pressure, ρ the water density, and 'y' the depth measured from the surface.

Let's examine this equation in we see that the total pressure is directly proportional to the atmospheric pressure and depth

Now we can examine the claims

A) To true. State agreement or with the equation above

B) False. Pressure changes with atmospheric pressure

C) False. It's the opposite

D) False. They are directly proportional

7 0

2 years ago

Read 2 more answers

A p-type Si sample is used in the Haynes-Shockley experiment. The length of the sample is 2 cm, and two probes are separated by

Airida [17]

Answer:

Mobility of the minority carriers, $\mu_{n} =1184.21 cm^{2} /V-sec$

Diffusion coefficient for minority carriers, $D_{n} = 29.20 cm^2 /s$

Verified from Einstein relation as $\frac{D_{n} }{\mu_{n} } = 25 mV$

Explanation:

Length of sample, $l_{s} = 2 cm$

Separation between the two probes, L = 1.8 cm

Drift time, $t_{d} = 0.608 ms$

Applied voltage, V = 5 V

Mobility of the minority carriers ( electrons), $\mu_{n} = \frac{V_{d} }{E}$

Where the drift velocity, $V_{d} = \frac{L}{t_{d} }$

$V_{d} = \frac{1.8}{0.608 * 10^{-3} } \\V_{d} = 2960.53 cm/s$

and the Electric field strength, $E = \frac{V}{l_{s} }$

E = 5/2

E = 2.5 V/cm

Mobility of the minority carriers:

$\mu_{n} = 2960.53/2.5\\\mu_{n} =1184.21 cm^{2} /V-sec$

The electron diffusion coefficient, $D_{n} = \frac{(\triangle x)^{2} }{16 t_{d} }$

$\triangle x = (\triangle t )V_{d}$ , where Δt = separation of pulse seen in an oscilloscope in time( it should be in micro second range)

$\triangle x = \frac{(\triangle t) L}{t_{d} } \\\triangle x = \frac{180*10^{-6} * 1.8}{0.608*10^{-3} }\\\triangle x =0.533 cm$

$D_{n} = \frac{0.533^{2} }{16 * 0.608 * 10^{-3} }\\D_{n} = 29.20 cm^2 /s$

For the Einstein equation to be satisfied, $\frac{D_{n} }{\mu_{n} } = \frac{KT}{q} = 0.025 V$

$\frac{D_{n} }{\mu_{n} } = \frac{29.20}{1184.21} \\\frac{D_{n} }{\mu_{n} } = 0.025 = 25 mV$

Verified.

4 0

2 years ago

2. Harry is pushing a car down a level road at 2.0 m/s with a force of 243 N. The total force

Arte-miy333 [17]

b) Equal to 243 N.

Explanation:

The total force acting on the car in the opposite direction including the road friction and air resistance is equal to 243 N.

This is in conformity with newton's third law of motion.

Newton's third law of motion states that "action and reaction are equal and opposite in direction. "

The action force is that of the pull by Harry acting on the car.
The reaction force is in the opposite direction.
Both action and reaction force equal and opposite and magnitude and direction

learn more:

Newton's laws brainly.com/question/11411375

#learnwithBrainly

3 0

2 years ago

To show that displacement current is necessary to make Ampère's law consistent for a charging capacitor Ampère's law relates the

Sladkaya [172]

Answer: The Ampère -Max-well law

Explanation:

The Ampère -Max-well law relates magnetic flux and electric current. It determines the relationship between current in association with a magnetic field and also magnetic field in association to related current.

7 0

2 years ago

Two students ride in cart opposite to one another in a spinning Ferris wheel

jeka57 [31]

Answer:

okay what do i answer

Explanation:

7 0

2 years ago