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3 years ago

PLEASE ANSWER ASAP

Physics

1 answer:

kirill [66]3 years ago

4 0

Answer:

55.44.4 hjejjejjejej be

Explanation:

hehhehebebebbebeb

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What is the external-internal pressure difference when the diver's lungs are at a depth of 6.1m (about 20ft)? assume that the di

Nesterboy [21]

Snorkel connects the diver's lungs with the air above the water. Because of this, the pressure inside the diver's lungs is the same as the atmospheric pressure.
The static pressure of a fluid is given with this equation:
$P=\rho gh$
The density of water is 1000kg/m^3.
$P=1000\cdot 9.81 \cdot 6.1=59841$Pa$
Standart atmospheric pressure is 101<span>325Pa.
</span>The difference is:
$\Delta P=101325-59841=41484 $Pa$

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3 years ago

Which two things determine an objects monentrum

maria [59]

Momentum (in terms of classical mechanics) is defined as p = m*v, where m is the mass and v is the velocity.

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4 years ago

Read 2 more answers

Please help me :))

neonofarm [45]

Answer:

the one above the surface of earth

Explanation:

earth has gravity the ball of the moon would float away

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3 years ago

If 190 grams of water is cooled from 42.7°C to 21.2° C how much energy was lost by the water?

yanalaym [24]

Answer:

Energy lost by the water is 17.1 x 10³ J .

Explanation:

Specific heat is defined as the amount of energy per unit mass needed to raise the temperature of the substance by a one degree Celsius.

Heat energy gain or loss by any substance is given by :

Q = m x C x ( T₁ - T₂ ) .....(1)

Here m is the mass of the substance, C is specific heat of the substance and T₁ and T₂ are the initial and final temperature of the substance.

According to the problem,

Mass of water, m = 190 gm

Specific heat of water, C = 4.186 J gm⁻¹ ⁰C⁻¹

Initial temperature, T₁ = 42.7⁰ C

Final temperature, T₂ = 21.2⁰ C

Substitute these values in equation (1).

Heat energy loss by water = 190 x 4.186 x ( 21.2 - 42.7 )

= -17.1 x 10³ J

In the above value, negative sign denotes the loss in energy.

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4 years ago

What is the need for satellite communication elaborate

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Explanation:

hope it helps!!

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3 years ago