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3 years ago

Please help I need help I can’t fail .

Physics

1 answer:

Evgen [1.6K]3 years ago

6 0

Answer:

Explanation:

Gas particles move fastest.

Plasma lacks fixed volume and shape.

Liquid lacks fixed shape, but has fixed volume.

Solid has both fixed volume and shape.

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In an experiment, a rectangular block with height h is allowed to float in two separate liquids. In the first liquid, which is w

Amiraneli [1.4K]

Answer:

The relative density of the second liquid is 7.

Explanation:

From archimede's principle we know that the force that a liquid exerts on a object equals to the weight of the liquid that the object displaces.

Let us assume that the volume of the object is 'V'

Thus for the liquid in which the block is completely submerged

The buoyant force should be equal to weight of liquid

Mathematically

$F_{buoyant}=Weight\\\\\rho _{1}\times V\times g=m\times g\\\\\therefore \rho _{1}=\frac{m}{V}...............(i)$

Thus for the liquid in which the block is 1/7 submerged

The buoyant force should be equal to weight of liquid

Mathematically

$F'_{buoyant}=Weight\\\\\rho _{2}\times \frac{V}{7}\times g=m\times g\\\\\therefore \rho _{2}=\frac{7m}{V}.................(ii)$

Comparing equation 'i' and 'ii' we see that

$\rho_{2}=7\times \rho _{1}$

Since the first liquid is water thus $\rho _{1}=1gm/cm^3$

Thus the relative density of the second liquid is 7.

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3 years ago

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A simple ideal Brayton cycle uses argon as the working fluid. At the beginning of the compression, P1 = 15 psia and T1 = 70°F, t

Shtirlitz [24]

B I thing hope this helps

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4 years ago

Learning Task No. 5 Identify the word or words being described by each statement. Choose y box below. 1. It is the process of ch

Rashid [163]

Identifying the word that is described by each statements in the question is listed below:

Evaporation
Transpiration
Hydrosphere
Water Cycle
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Water can be simply defined as any fluid or substance that is odurless, colorless and tasteless.

Water is a very important factor and substance that sustains life in humans and plants on earth.

Water tends to undergo different changes and processes in plant, animals and even as a substance on its own

In conclusion the above listed processes are all related to water.

Learn more about Water: brainly.com/question/1313076

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2 years ago

As crust forms at the mid-ocean ridge, it gets pushed away from the ridge as newer crust forms. What is true about crust that fo

Nuetrik [128]

Answer:

Answer is A

Explanation:

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3 years ago

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Ayudenme pls es urgente es nota del cohorte

nydimaria [60]

Answer:

500m

Explanation:

because 250+250 goood

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3 years ago