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# How is a circle different from an ellipse

2 months ago

## Solution 1

Guest #3737
2 months ago
A circle is a closed curved shape where all the lines from the edge to the center are the same length. An ellipse varies in length.

## đ Related Questions

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Which aqueous solution of Kl freezes at the lowest temperature? a) 2 mol of Kl in 1,000. g of water b) 1 mol of Kl in 1,000. g of water c) 2 mol of Kl in 500. g of water d) 1 mol of Kl in 500. g of water
Solution 1

Answer:

c) 2 mol of Kl in 500. g of water

Explanation:

Colligative properties such as melting and boiling points and osmotic pressure all depend on the amount of solute present. The more the concentration of solute present, the greater the degree of display of colligative properties by a solution

Considering the options given, 2 mol of Kl in 500. g of water has the highest concentration and is expected to freeze at the lowest temperature.

Solution 2
The correct answerÂ is B.
Lowering of the freezing point can be a colligative property. The greatest concentration of mass of salt in the water will have what we call the lowest freezing point.
For example the least amount of water in the greatest amount of salt.
Question
Why is a hydraulic system useful?
Solution 1
Hewoooo!!!

HydraulicsÂ are used in the brakingÂ systemÂ of a car. They cause a relatively small force from the driver's foot to be multiplied to produce a greater force, which acts equally on all four brake pads. ... The transmitted pressure acts on this larger area to produce a larger load force on the brake pads.

i think they are helpful, it just depends what your using them for :D
Question
What is "carbon neutral"
Solution 1
its is making no net release of carbon dioxide to the atmosphere,especially through offsetting emissions by planting trees
Solution 2
Carbon Neutral means making no net release of carbon dioxide to the atmosphere, especially through trees. (âÂ´Ďď˝â)
Question
State one advantage of building a space station in orbit instead of sending it all up in one piece.
Solution 1
Building a space station in orbit is a safety measure. If a rocket fails to bring up the entire space stationÂ in one piece it would be extremelyÂ expensive to build a new one. Bringing it up in multiple placesÂ ensures less moneyÂ would be lost if the rocket fails.
Question
Extreme (1, 2, or 3) in the center of nebulae causes hydrogen atoms to shed their electrons and collide with one another. The (4, 5, or 6) of the collisions cause the smaller, bare nuclei to fuse into large helium nuclei. 1. expansion 2. heat 3. density 4. size and luminosity 5. force and speed 6. mass and temperature
Solution 1
Extreme (Heat) in the center of nebulae causes hydrogen atoms to shed their electrons and collide with one another. The (force and speed) of the collisions cause the smaller, bare nuclei to fuse into large helium nuclei.
Solution 2

Answer:

2. heat

5. force and speed

Explanation:

Nuclear fusion in stars causes the hydrogen atoms to collide with each other and form the heavier helium atom. The fusion reaction is therefore:

âHÂ˛ Â + Â âHÂ˛ â Â âHeâ´

Extreme heat in the center of nebulae causes hydrogen atoms to shed their electrons and collide with one another. The force and speed of the collisions cause the smaller, bare nuclei to fuse into large helium nuclei.

Question
Why is radioactive decay a good method of measuring the absolute age of ancient fossils
Solution 1
radioactive decay is a good method of measuring the absolute age of ancient fossils because radioactive decay could be measure and confront again time in the most trusted and verifiable way, as it allows to have a degreeÂ of certaintyÂ that other measurements have not yet reached. it is also easy to test and compare with other methods.Â
Solution 2

Answer:

All ancient fossils contain C-14

Explanation:

All living things contain more than one isotope of carbon, the most prominent being, carbon -12 and carbon-14.

Carbon-14 is a radioactive isotope of carbon. When the artifact is retrieved, the activity of carbon-14 in that sample is matched with the carbon-14 activity of a living organism. When this is done, the age of the fossil can easily be accurately calculated.

Question
How are natural areas different from rural areas
Solution 1
Natural areas tend to be those regions that are either protected from human activities or been lucky enough to not have had a huge human impact as yet. Rural tends to be regions that have been ...
Question
What is the term for secondary consumers in an ecosystem?
Solution 1
Answer: Carnivores, or Meat Eaters

Reason/Explanation:
Another name for Secondary Consumers is Carnivores. They eat flesh, and meat. They feed on the herbivores. An example of this is snakes, squirrels, ravens, etc. They eat plants and meat.

-DustinBR
Question
Which is a sustainable practice? wind farms clear cutting flood irrigation overfishing
Solution 1
I'm pretty sure It's flood irrigation. It's the least effective when practiced on economic life.
Solution 2

Answer:

### wind farms

Explanation:

Question
Acetic acid, an organic compound, has the following structural formula. mc011-1.jpg What is the chemical formula for acetic acid? CHO C2H4O2 C2OH C2O2H
Solution 1

the correct answer is B) C2H4O2

Solution 2

I'm Pretty Sure the answer is C2O2H. If these are the answer choices.

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