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3 years ago

PLEASE HELP ASAP!!! CAN SOMEONE PLEASE HELP ME WITH MY PHYSICS QUESTIONS? I NEED CORRECT ANSWERS ONLY PLEASE!!!

Physics

1 answer:

tangare [24]3 years ago

5 0

Ive passed several physics classes. What's your question?

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There is a maximum depth at which a diver can breathe through a snorkel tube because as the depth increases, so does the pressur

hammer [34]

Answer: $59.78\times 10^3\ Pa$

Explanation:

Given

Diver is at a depth of $h=6.1\ m$ inside the water $(\rho=10^3\ kg/m^3)$

As we go down pressure increases due to the weight of liquid column above us

Pressure difference is given by $P=\rho \times g \times h$

Where $\rho$ =density of liquid

h=depth

g=acceleration due to gravity

So external-internal pressure difference is

$\Delta P=10^3\times 9.8\times 6.1$

$\Delta P=59.78\times 10^3\ Pa$

8 0

3 years ago

If every object that has mass has gravity why do I only notice the gravity of Earth

Nesterboy [21]

There are times where the mass is less than the force of gravity or the gravitational pull. The gravitational pull will overpower the mass of the object, which is why you only notice the force of gravity and not the mass

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4 years ago

How many states in the world are there?

aliya0001 [1]

Answer:

There are 193 member states. The UN recognises 206 states altogether.

Explanation:

8 0

3 years ago

How long does it take oxygen to diffuse a distance of 1 mm in water at room temperature? How long does it take oxygen to diffuse

Viktor [21]

Answer:

option A

Explanation:

given,

travel distance = 1 mm

diffusion constant for the molecule of oxygen in water = 1 x 10⁻⁹ m²/s

we know that

$t = \dfrac{x^2}{2D}$

t is the time taken for diffusion

x = 1 mm = 10⁻³ m

D is the diffusion

$t = \dfrac{(10^{-3})^2}{2\times 10^{-9}}$

$t = \dfrac{(10^{3})}{2}$

t = 500 s

so, the option to the answer is 170 s

the correct answer is option A

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4 years ago

Thick fuild in sinuses

vesna_86 [32]

You will always have mucus fluid, but if you are healthy it is thin. When your sinuses become enflamed the mucus becomes thick.

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3 years ago