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3 years ago

Calcular la cantidad de solucion que se encuentra en un recipiente con 670 g de solvente y 22 g de soluto

Physics

1 answer:

Solnce55 [7]3 years ago

4 0

Answer:

692 g

Explanation:

La fórmula para encontrar la solución de una mezcla química es agregar el soluto y el solvente juntos. Esto significa

Solución = solvente + soluto

Solución = 670 g + 22 g

Solución = 692 g

es así de simple, y espero que lo entiendas

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The ability of a muscle group to exert sub-maximal forces against a resistance over numerous contractions is called A. muscle en

Delicious77 [7]

The answer is:
A) Muscle Endurance

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3 years ago

A few hundred tons of comet dust are added to Earth daily from the millions of meteors that enter our atmosphere. Estimate the t

slavikrds [6]

Answer:

$=9.953\times 10^{16} Days$

Explanation:

The weight of the Earth = $5.972\times 10^{24} KG$

0.1% of the weight of the Earth will be

$=5.972\times 10^{24} \times \frac{1}{1000}$

$=5.972\times 10^{21} KG$

As per a research conducted in 2014, it was estimated that 60 tons of cosmic dust fall on the Earth every day. So, the time it would take for the cosmic dust to make up 0.1% of the weight of the Earth will be,

$=\frac{1}{60000}\times 5.972\times 10^{21} Days$

$=9.953\times 10^{16} Days$ .

Though the quantity of the cosmic dust might seem huge but its negligible in comparison to the weight of the Earth. Also, this cosmic dust plays a role in formation of clouds and fertilization of plankton in Polar region.

7 0

3 years ago

If the designers of submarines do not appropriately account for hydrostatic pressure,

andre [41]

Answer:

A) the pressure could crush the submarine

Explanation:

The submarines are mainly used for defense purposes.
In world war 1 and 2 the submarines played a vital role in the war.
The submarines work according to the principle of buoyancy.
According to this principle, when seawater is filled inside the tank in a required amount, the submarines sink.
When the seawater is expelled, the submarine rises to above the sea.
Most of the time, it dives deep into the sea, the hydrostatic pressure should be taken into account.
If the hydrostatic pressure is not considered, the pressure could crush the submarine.

7 0

3 years ago

How do i do this question？just number 5

larisa86 [58]

5 a)

Start by arranging the materials by the sonic speed and then their physical state:

$4600 \; \text{m} \cdot \text{s}^{-1}$ - Copper (solid)
$4500 \; \text{m} \cdot \text{s}^{-1}$ - Glass (solid)
$4000 \; \text{m} \cdot \text{s}^{-1}$ - Wood (solid)

$1500 \; \text{m} \cdot \text{s}^{-1}$ - Sea Water (liquid)
$1200 \; \text{m} \cdot \text{s}^{-1}$ - Acetone (liquid)
$1100 \; \text{m} \cdot \text{s}^{-1}$ - Alcohol (liquid)

$972 \; \text{m} \cdot \text{s}^{-1}$ - Helium (gas)
$267 \; \text{m} \cdot \text{s}^{-1}$ - Carbon dioxide (gas)

What trend do you identify from these data? Here's what I've got:

$\text{Sonic Speed}: \text{solid} > \text{liquid} > \text{gas}$

5 b)

The way microscopic particles are arranged in a substance helps distinguish between different physical states:

Particles in a solid are held tightly in place with small separation in between; it's hard for particles in a solid to move past one another; solids therefore have shapes that persists over time.
Particles in a gas are highly mobile- they keep moving AT ALL TIMES. There are large separations between individual particles and therefore gases tend to show no definite shape or volume.
The arrangement of particles in a liquid is located somewhere in between that of solids and gases. The exact configuration is dependent on the nature of the liquid- for example, molecules in maple syrup are held way closer to each other than those in distilled water are.

Sound travels as a longitudinal wave. As a sound wave passes through a medium, individual particles become excited and gain energy; as they run into others they transfer their energy to the next particle; the sound wave thus propagate across the medium. With a lower average distance between individual particles this action can proceed at a greater rate in average solids than in average liquids, and in average liquids than in average gases. Hence the trend.

3 0

3 years ago

1) A fan is to accelerate quiescent air to a velocity of 8 m/s at a rate of 9 m3/s. Determine the minimum power that must be sup

azamat

Answer:

$\dot{W} = 339.84 W$