Why does water fill the bottom of a glass rather than cling to the side

Answers

Answer 1

Answer: When you pour water into a glass, gravity is pulling the water down to the bottom of the glass instead of pulling it to the sides and since glass is a substance that glass easily rolls off of, it is easier for the water molecules to locate at the bottom.

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What do you think your weight would be if you were floating in space a long way from any planets?Explain your answer.

Answers

there will be less weight on space than on earth because there is no gravity on space

Your weight will be less than on Earth because in space there is no or very less gravitational pull. There are no planets forming any magnetic fields for other objects to be attracted to.

Calculate the density of a sample of gas with a mass of 30 g and volume of 7500 cm3.

Answers

By definition we have that the density is given by:

Where,

M: mass of the sample

V: volume occupied by the sample

Therefore, substituting values in the given equation we have:

$D = 0.004 (g)/(cm^3)$

Answer:

the density of a sample of gas with a mass of 30 g and a volume of 7500 cm3 is:

$D = 0.004 (g)/(cm^3)$

The density of the sample of gas is $\boxed{4*10^(-3)\text{ g}/\text{cm}^3}$ or $\boxed{0.004\text{ g}/\text{cm}^3}$ .

Further Explanation:

Density of any kind of matter is defined as the total mass of that substance present in the volume occupied by it in the region of space.

Example (1) : If we consider equal amounts of tungsten and iron, then tungsten is heavier than iron because tungsten occupies lesser volume or lesser empty spaces inside it for a particular mass as compared to iron. Therefore, tungsten has density higher than that of iron.

Example (2): If we take 2 cubes of similar size (same volume) of tungsten and gold then the cube of gold will be heavier because its density is more than that of tungsten.

Given:

The mass of the sampleof the gas is $30\text{ g}$ .

The volume of the sample of the gas is $7500\text{ cm}^3$ .

Concept:

The density of the substance is defined as the ratio of the mass and volume.

$\boxed{\rho=(m)/(V)}$ ......(1)

Here, $\rho$ is the density of the sample ofthe gas, $m$ is the mass of the sample of the gas and $V$ is the volume occupied by the gas.

Substitute the value of $m$ and $V$ in equation (1).

$\begin{aligned}\rho&=\frac{30\text{ g}}{7500\text{ cm}^3}\n&=4*10^(-3)\text{ g}/\text{cm}^3\end{aligned}$

Thus, the density of the sample of gas is $\boxed{4*10^(-3)\text{ g}/\text{cm}^3}$ or $\boxed{0.004\text{ g}/\text{cm}^3}$ .

Learn More:

1. Wind and solar energy are the examples of brainly.com/question/1062501

2. Which of the following is not a component of a lever brainly.com/question/1073452

3. A 30kg block being pulled on a carpeted floor brainly.com/question/7031524

Answer Details:

Grade: middle school

Subject: Physics

Chapter: Matter

Keywords:

Density, sample of gas, 30g gas, volume, 7500 cm3, 7500 cm^3, mass, matter, volume occupied, sample, ratio,grams per centimeter cube

What must you do before you make a hypothesis?

Answers

Answer:

Before you make a hypothesis, you have to clearly identify the question you are interested in studying. A hypothesis is a statement, not a question. Your hypothesis is not the scientific question in your project. The hypothesis is an educated, testable prediction about what will happen

Explanation:

Final answer:

Before you make a hypothesis, you need to do preliminary research to understand the subject and define the problem. Collect and analyze relevant data and then based on your observations, you can create an educated guess or hypothesis to be tested.

Explanation:

Before you make a hypothesis, there are several important steps you should undertake. Firstly, you need to do some preliminary research. This research can involve reading books, scholarly articles, or trustworthy digital resources about the subject of interest. It is key to understand the subject well before developing a hypothesis. Secondly, you need to clearly define the problem or question you are interested in answering.

Next, make observations and gather data related to the problem. This is often called data collection and may involve conducting surveys, experiments, or fieldwork. After collecting and analyzing all the relevant data, you can formulate a hypothesis. A hypothesis is an educated guess about how things work or a tentative explanation that you will test in your experiment.

Learn more about Formulating a hypothesis here:

brainly.com/question/32833093

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What do you think that astronomers mean when they use the term observable universe? (Hint: Thi.nk of the time it takes for light from very distant objects to reach Earth.)

Answers

When people use the term "observable universe" it means that the light from other parts of the universe hasn't yet had time to reach us, so we cannot see it.

If opposite poles repel each other, why does the north end of a compass point to the north pole?

Answers

Ratios are fractions

Decision making is part of

Answers

Answer: Decision making is the process of making choices by identifying a decision, gathering information, and assessing alternative resolutions. Using a step-by-step decision-making process can help you make more deliberate, thoughtful decisions by organizing relevant information and defining alternatives.

Hope this helps you out

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