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3 years ago

Rue or false: the combustion engine is an example of chemical change that many people witness everyday

Social Studies

2 answers:

Tju [1.3M]3 years ago

8 0

True. This is because, in a combustion engine, there is a chemical reaction.

tensa zangetsu [6.8K]3 years ago

4 0

Answer:

True.

Explanation:

The given statement is true.

Chemical changes include chemical reactions and the production of different products. Generally, a chemical change is immutable. Less-familiar actinic effects are also instances of chemical changes. Such changes may produce a material to change its color, temperature, create a precipitate or make bubbles. Accordingly, the combustion engine is an example of chemical change.

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Write summary of air pressure belt on the globe using mind map

serg [7]

Explanation: Since air has mass, it also has weight. The pressure of air at a given place is defined as a force exerted in all directions by virtue of the weight of all the air above it.

The weight of a column of air contained in a unit area from the mean sea level to the top of the atmosphere is called the atmospheric pressure. The atmospheric pressure is expressed in various units.

Measurement of Air Pressure

Atmospheric pressure is the weight of the column of air at any given place and time. It is measured by means of an instrument called barometer.

The units used by meteorologists for this purpose are called millibars (mb).

One millibar is equal to the force of one gram on a square centimeter. A pressure of 1000 millibars is equal to the weight of 1.053 kilograms per square centimeter.

In other words, it will be equal to the weight of a column of mercury 75 cm high.

The normal pressure at sea level is taken to be about 76 centimeters (1013.25 millibars).

Vertical Variation of Pressure

In the lower atmosphere the pressure decreases rapidly with height.

7 0

3 years ago

Help worth 20 points

Serggg [28]

According to all known laws

of aviation,

there is no way a bee

should be able to fly.

Its wings are too small to get

its fat little body off the ground.

The bee, of course, flies anyway

because bees don't care

what humans think is impossible.

Yellow, black. Yellow, black.

Ooh, black and yellow!

Let's shake it up a little.

Barry! Breakfast is ready!

Ooming!

Hang on a second.

Hello?

- Barry?

- Adam?

- Oan you believe this is happening?

- I can't. I'll pick you up.

Looking sharp.

Use the stairs. Your father

paid good money for those.

Sorry. I'm excited.

Here's the graduate.

We're very proud of you, son.

A perfect report card, all B's.

Very proud.

Ma! I got a thing going here.

- You got lint on your fuzz.

- Ow! That's me!

- Wave to us! We'll be in row 118,000.

- Bye!

Barry, I told you,

stop flying in the house!

- Hey, Adam.

- Hey, Barry.

- Is that fuzz gel?

- A little. Special day, graduation.

Never thought I'd make it.

Three days grade school,

three days high school.

Those were awkward.

Three days college. I'm glad I took

a day and hitchhiked around the hive.

You did come back different.

- Hi, Barry.

- Artie, growing a mustache? Looks good.

- Hear about Frankie?

- Yeah.

- You going to the funeral?

- No, I'm not going.

Everybody knows,

sting someone, you die.

Don't waste it on a squirrel.

Such a hothead.

I guess he could have

just gotten out of the way.

I love this incorporating

an amusement park into our day.

That's why we don't need vacations.

Boy, quite a bit of pomp...

under the circumstances.

6 0

3 years ago

Compare and contrast the Chinese government bureaucracy under the Tang and Song dynasties. How was it similar? How did it differ

VMariaS [17]

Tang was militarily powerful while song was comparatively weak. Song dynasty is remembered for its accomplishments in the sphere of its culture. Tang Dynasty was overthrown by the rebels whereas song dynasty experienced the downfall when the Mongols invaded them.

Tang Dynasty influenced military authority over Central Asia which included Korea, Japan and Siberia and central China whereas song dynasty influenced only a part of china but its cultural impact was felt in other nations too. Song Dynasty gave little importance to military power and encouraged Confucian intellectuals for advocacy.

Tang Dynasty allowed many religions to be followed in his rule; they were Buddhism, Islam, Taoism, Christianity, and Judaism. But song Dynasty favored only the teachings of Confucius. Tang Dynasty was known for poetry while song dynasty promoted paintings. Both the dynasties are similar in creating a cultural impact on other nations.

8 0

3 years ago

Read 2 more answers

miss Akunina [59]

One similarity was that religious leaders were also political leaders (to various degrees) in both entities. This meant that their power would not be as challenged by the citizens (after all, their leaders were god-sent, and opposing them could lead to God's wrath). Also, in this way, the entities could control their subjects better, because they controlled their private life too (including private ceremonies, such as marriages). <span />

5 0

3 years ago

Explain how the members of the legislature are chosen.

seropon [69]

Answer:

our state legislators are elected by their constituents. Therefore, they need your vote in order to remain in (or win) office. This is the primary source of your power.

Explanation:

hope it helps

3 0

3 years ago