In which step of the four-stroke engine cycle does the car release CO2, H2O, and CO?

Answers

Answer 1
Answer: The step of the four-stroke engine cycle does the car release CO2, H2O, and CO is the fourth step or the exhaust step. 
Answer 2
Answer:

Answer:

Fourth Stroke.

Explanation:

There are four strokes in a car engine

a) Intake stroke: In this stroke the air and fuel is being pumped into the compressor from intake valve.

b) compression stroke: The piston moves upward and the fuel air mixture undergoes compression.

c)combustion stroke: The spark plug generates a spark and the fuel undergoes combustion. The energy produced push the piston backwards or downwards.

d) Exhaust stroke: the exhaust gases like carbon dioxide , water, carbon monoxide etc are forced up by the piston.


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"Contagion" Movie questions!I have a few questions about the movie.

1. What type of pathogenic agent was the disease and what was the name of it?
2. Dr. Ellis Cheever (played by Lawrence Fishburne) explains that the spread of the disease is dependent on factors such as "nutrition, underlying conditions, socioeconomic factors and access to clean drinking water." Explain the validity of this statement.
3. Explain the irony of the following statement made by Dr. Cheever
" Shaking hands was a way of showing someone you werent carrying a weapon in the old days"

Answers

1. The pathogenic disease in "Contagion" was called Nipah. It was a combination of a flue and a virus, which caused respiratory disease and inflammation of the brain.

2. Cheever's statement is valid because flus/viruses can spread/caught by not taking care of your body (aka poor nutrition), and people who are in a lower socioeconomic class may not have the resources to prevent or fight off these sicknesses with proper vaccinations and medicine.

3. Cheever's statement is ironic because in the movie, shaking hands became a way of spreading Nipah. He's referring to biological warfare.

Final answer:

The movie 'Contagion' features a virus called MEV-1 that spreads based on factors like nutrition, underlying conditions, socioeconomic factors, and clean drinking water. Dr. Cheever's statement about these factors' influence on disease spread is valid, and the irony lies in the fact that shaking hands, once a symbol of trust, can actually spread diseases.

Explanation:

1. The pathogenic agent in the movie 'Contagion' was a virus called MEV-1.

2. Dr. Ellis Cheever's statement about the spread of the disease is valid. Nutrition, underlying conditions, socioeconomic factors, and access to clean drinking water can all affect a person's immune system and ability to fight off infections.

3. The irony in Dr. Cheever's statement is that shaking hands, which was once seen as a sign of trust and nonviolence, can actually spread diseases like the one depicted in the movie.

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During an experiment, a student observes the formation of a precipitate. Why does this indicate that a chemical reaction is likely occurring? 1)A solid forms, and there is a change of color. 2)A gas forms, and there is a change of color. 3)A solid forms, and light is emitted. 4)A gas forms, and light is emitted.

Answers

The right answer for the question that is being asked and shown above is that: "2)A gas forms, and there is a change of color. " During an experiment, a student observes the formation of a precipitate. a chemical reaction is likely occurring because A gas forms, and there is a change of color.

Why do natural systems like the water in a pond rarely reach thermal equilibrium?

Answers

Final answer:

Natural systems like water in a pond rarely reach thermal equilibrium due to temperature differences and energy transfer limitations.

Explanation:

Natural systems like the water in a pond rarely reach thermal equilibrium due to various factors.

  1. One reason is the presence of temperature differences in different parts of the pond. For example, during the summer, the upper layer of water is warmed by the Sun and doesn't mix with deeper, cooler water, causing thermal stratification.
  2. Another reason is that energy transfer by heat requires a temperature difference. Once the two masses of water in the pond are mixed, there is no more temperature difference left to drive energy transfer by heat and do work.

These factors prevent the pond from reaching thermal equilibrium.

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A hurricane’s energy comes fromA. condensation of large amounts of water vapor.
B. lightning striking as the storm forms.
C. the movement of continental tropical air masses.
D. the action of waves in warm ocean waters.

Answers

Huge storms called hurricanes have winds that rotate at a rate of 74 miles per hour. The spinning wind blows with a scary force across the tropical waters' warm surface. A hurricane’s energy comes from the condensation of large amounts of water vapor. The correct option is A.

Hurricanes are fueled by thunderstorms and warm ocean waters. Hurricanes frequently begin as tropical waves, which are low-pressure systems that pass over moist regions of the tropics and may intensify shower and thunderstorm activity. Hurricanes form over the ocean.

The eye, eyewall, and outer region are the three main components of a mature hurricane. A vertical cut through a mature hurricane's center.

Thus the correct option is A.

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A hurricane's energy comes from condensation of large amounts of water vapor.

If you have 4 moles of zinc and 4 moles of hydrochloric acid, which of these would be the limiting reactant?

Answers

The balanced reaction between Zn and HCl is as follows:
Zn(s) + 2HCl(aq) -> ZnCl2(aq) + H2(g)
This means that HCl would be the limiting reactant.

D) Hydrochloric acid

When two continental plates of similardensities collide,
A. they remain level since densities in both plates are equal.
B. they both push back down into the mantle
C. one plate rides over the other one and forms a trench
D.they buckle upward and form mountains

Answers

Answer:

D. They buckle upward and form mountains.

Explanation:

When two plates (either oceanic or terrestrial) converge and they are of similar density then they will crash into each other and form mountains. A great example of this is when India crashed into the Asian continent and the Himalayas were formed.