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Verizon [17]
3 years ago
15

In a car engine, energy is converted in a number of ways to make the car run.  Identify the correct order of the energy conversi

on in the engine of the car by this path:
The ignition switch is turned, which sends a signal to start the car by fuel burning.  This gets the engine going, which produces heat.  When the driver puts the car in drive and pushes the accelerator, the car starts moving.


chemical --> mechanical --> heat --> electrical

mechanical --> electrical --> heat --> chemical

electrical --> chemical --> thermal --> mechanical

heat --> chemical --> mechanical --> electrical
Chemistry
1 answer:
vfiekz [6]3 years ago
3 0
Electrical--> chemical --> thermal --> mechanical
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According to the usda food standards and labeling, vinegar must contain at least 4% (m/m) acetic acid. does your vinegar sample
Anastasy [175]

Answer:

A for me

Explanation:

I dont know what you mean by this as this is an opinon question

7 0
2 years ago
How many moles of CaO will be produced from 23.9 g of Ca?<br>2Ca(s) + O2(g) – 20:0(3)<br>mol​
inessss [21]

Answer:

0.6 moles of CaO will produced.

Explanation:

Given data:

Mass of calcium = 23.9 g

Moles of CaO produced = ?

Solution:

Chemical equation:

2Ca + O₂ → 2CaO

Number of moles of calcium:

Number of moles = mass/ molar mass

Number of moles = 23.9 g / 40 g/mol

Number of moles = 0.6 mol

Now we will compare the moles of calcium and CaO.

            Ca         :          CaO

              2          :          2

            0.6         :        0.6

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4 0
3 years ago
Which statement is true about air temperature and humidity
lapo4ka [179]

Complete Question:

Which statement is true about air temperature and humidity?

Group of answer choices.

a. the air temperature does not affect how much moisture the air can hold

b. hotter air holds less moisture than colder air.

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Answer:

d. colder air holds less moisture than hotter air

Explanation:

Weather can be defined as the atmospheric conditions of a particular area over a short period of time.

The elements of weather include precipitation, wind, temperature, atmospheric pressure, relative humidity, cloud, and wind speed.

Temperature can be defined as a measure of the degree of coldness or hotness of a physical object (body).

On the other hand, humidity refers to the concentration (amount) of water vapor that is present in the air. It is high when there's a lot of water vapor in the air and low when the level of water vapor is small.

Hence, the true statement about air temperature and humidity is that colder air holds less moisture than hotter air because as the air cools, its molecules move closer together while the molecules move farther apart as the air become hot.

Additionally, at constant humidity, relative humidity is inversely proportional to temperature i.e as the temperature decreases, relative humidity increases.

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