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Tomtit [17]
2 years ago
10

I need help with these question ASAP .. I have to get them done tonight because it is due tomorrow

Physics
1 answer:
sergiy2304 [10]2 years ago
6 0

Answer:

A is benthos

B is Nekton

Explanation:

I looked ip up lol

According to the internet:

Nekton are free-swimming animals that can move throughout the water column. Squid, most fishes, and marine mammals such as whales and seals are nekton. Benthos are organisms that inhabit the ocean floor. Some benthos, like crabs, sea stars, octopus, and lobsters, move from place to place.

Hope i helped!

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What is the new volume of the gas if the pressure on 350 L of oxygen
Iteru [2.4K]

Answer:

420 L

Explanation:

Applying Boyle's Law,

PV = P'V'.................... Equation 1

Where P = Initial pressure, P' = Final pressure, V = Initial volume, V' = Final volume.

make V' the subject of the equation

V' = PV/P'.................... Equation 2

From the question,

Given: P = 720 mmHg, V = 350 L, P' = 600 mmHg

Substitute these values into equation 2

V' = (720×350)/600

V' = 252000/600

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7 0
3 years ago
A crate falls from an airplane flying horizontally at an altitude of 2,000 m.
Hatshy [7]

Answer:

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The crate is in free fall, so a = -9.8 m/s².

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Δx = v₀ t + ½ at²

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t = 20.2 s

It takes 20.2 seconds for the crate to land.

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