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Alexus [3.1K]
3 years ago
10

I need help with this I’ve been trying a lot but I can’t understand these questions

Chemistry
1 answer:
kipiarov [429]3 years ago
4 0

Answer:

lose,equals,high

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Construct an argument for or against the immediate introduction of fuel-cell cars. Include likely points of objection from those
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Answer:

Explanation:

Fuel Cell Cars are the vehicles built to run on hydrogen gas rather than running on the hydrocarbon.

Hydrocarbons are the organic compounds which are derived mostly from the crude oil. They are usually composed of Hydrogen and Carbon.

Fuel cell cars are much more better than the regular vehicles running on hydrocarbon in so many ways especially environmentally.

Listed below are some of the advantages of fuel cell cars over the regular vehicles

Fuel cells have a higher efficiency than diesel or gas engines.

Most fuel cells operate silently, compared to internal combustion engines. They are therefore ideally suited for use within buildings such as hospitals.

Fuel cells can eliminate pollution caused by burning fossil fuels; for hydrogen fuelled fuel cells, the only by-product at point of use is water.

If the hydrogen comes from the electrolysis of water driven by renewable energy, then using fuel cells eliminates greenhouse gases over the whole cycle.

Fuel cells do not need conventional fuels such as oil or gas and can therefore reduce economic dependence on oil producing countries, creating greater energy security for the user nation.

Since hydrogen can be produced anywhere where there is water and a source of power, generation of fuel can be distributed and does not have to be grid-dependent.

The use of stationary fuel cells to generate power at the point of use allows for a decentralised power grid that is potentially more stable.

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According to Newton's Second Law of Motion, when an object is acted on by an unbalanced force, how will that object respond?
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Newton's Second Law states:
The acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the mass of the object.

since the net force and the acceleration ar directly proportional, as the net force increases the acceleration will increase.

hope this helps :)


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3 years ago
can you tell what the genotype of the purple flowered parent is from the information in the punnets square? explain why or why n
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We will not be able to tell the genotype of the purple parent as it can either be a homo_zygous dominant or hetero_zygous. Without the complete genotype of the offspring, we would not be able to tell.

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2 years ago
WILL MARK BARINLIEST
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In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory.

so the third one should be correct.

6 0
3 years ago
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