5. How is the hydrogen gas balloon different from the hot air balloon? explain this in terms of density

Answers

Answer 1

Answer:

either helium or hydrogen

Answer 2

Answer:

As air is heated, it becomes less dense than the surrounding cooler air. The less dense hot air has enough lifting power to cause the balloon to float and rise into the air.

Explanation:


Related Questions

Do a essay about engineering

Answers

Take a look around yourself. What do you see? Maybe books, chairs, a television, or even your clothes. All the day to day things that are man-made, you can be sure that an engineer helped make it. Engineers have shaped our world as we know it. There are many different kinds of engineers from chemical, mechanical, textile, civil, agricultural and structural engineers. Our civilization would be as advanced as the Stone Age without these people. This career demands a wide education of math and science. It is an ever-changing career with new advances in materials and the way products are produced. Engineering careers are very secure with respect to compensation. Regardless of this, it does have it’s disadvantages…show more content…

(Britannica 243) Another disadvantage of being an engineer is the actual status of being one. It is not looked upon as highly as other fields such as doctors and lawyers. Most of the time they are looked upon as nerds. In addition, most engineers are not promoted to high level positions such as presidents or top executives. They do not have the accounting or business education to do that particular job. This means that most engineers never get the opportunity to be their own boss. (Basta 22)

    The job of an engineer itself is a creative job. The actual definition of an engineer is “The profession in which a knowledge of the mathematical and natural sciences gained by study, experience and practice is applied with judgment to develop ways to utilize the materials and forces of nature economically for the benefit of mankind.” (Bastas 24) In having the basic skills and experiences in math and science, an engineer is basically an inventor. They are given a problem and are depended on to come up with a solution. Whether it be a new chemical, a mechanical part, or even a whole new system such as computer operating program, engineers are the problem solvers of our materialistic society.

There are four major types of essay and they are the Descriptive, Argumentative, Expository and the Narrative essay.

What is an essay?

An essay is generally are a piece of writing that gives an argument, educates or entertains a reader about a specific topic.

Writing an essay about engineering is to educate people about the field of study, and therefore, falls under the Expository essay.

Therefore, below are some tips that will guide you in writing an expository essay:

Start the essay structure with a good introduction.Write down a brief outline and craft out a summary of discussion topics to support your idea.Choose the point of view used in writing carefully.Use a clear concise language to write. Do NOT use figurative language.State your argument. Clarify your main point.Capture the reader's attention with your appealing introduction.Use your strong ideas and focus on them on each paragraph.Connect sentences with clear and logical main idea.Include your supporting information and cite your sources.Summarize your points/arguments with a concise and clear conclusion.

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work of energy dimersional formula

Answers

Answer:

Common symbols

W

SI unit

joule (J)

Other units

Foot-pound, Erg

In SI base units

1 kg⋅m2⋅s−2

Derivations from

other quantities

W = F ⋅ s

W = τ θ

Dimension

M L2 T−2

Explanation:

please Mark my answer in brainlist

“We have to redo the deck we built last week,” Bennett tells his coworkers. “I just tested it, and it doesn’t hold the minimum weight that the county requires. We have to replace it even though the client likes it as is and fixing it will cost us money.” What type of behavior is this?

A.
needs-driven

B.
consumer-driven

C.
emotional

D.
ethical

Answers

Answer:

Consumer-driven

Explanation:

Bcz he told the cost of money

Bon
9. Not having enough food can contribute to
someone remaining in the
A business cycle
B cycle of poverty
inflationary cycle
D same school

Answers

the answer is B, cycle of poverty
The answer is “B” cycle of poverty

Sand is composed mostly of ____ and is used to make glass, bricks, and concrete for the construction of roads and buildings.

Answers

Answer:

minerals

Explanation:

Sand is composed mostly of silicon dioxide (SiO2) and is used to make glass, bricks, and concrete for the construction of roads and buildings.

What is the composition of sand?

Sand is defined as a granular material that is produced through the weathering of rocks.

The most common composition of sand is minerals which is silica or silicon dioxide (SiO2).

The mineral, silicon dioxide (SiO2), is used to make glass, bricks, and concrete for the construction of roads and buildings.

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EverFi future smart pie chart
Bond: 20%
Mutual fund: 15%
Stock: 50%
Savngs account: 15%

Answers

Answer:

wow!!!!!! you pie chart is sweet

The representation of the following data in a pie chart is given in the diagram;

Bond: 20%Mutual fund: 15%Stock: 50%Savngs account: 15%

What is pie chart?

A pie chart is a circle which is used for the diagramatic representation of data. It is usually done by dividing the circle into different areas or slices to represent each data.

Each slice could be used to represent different units such as degree, percentage, centimeters, kilograms.

Bond: 20%

Mutual fund: 15%

Stock: 50%

Savngs account: 15%

Total = 20% + 15% + 50% + 15%

= 100%

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