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Nikolay [14]
3 years ago
12

A research student wants to know whether ethanol is a better fuel than gasoline. Which step in the process of scientific inquiry

has already been completed?
Physics
2 answers:
DerKrebs [107]3 years ago
4 0

Answer:

Asking a scientific question

Explanation:

tigry1 [53]3 years ago
3 0

Answer:

Asking a scientific question

Explanation:

Scientific inquiry is using evidence from observations and investigations to create logical explanations and answer questions. Scientific inquiry is for people who want to be challenged and use creative and critical thinking to answer questions related to science.

The scientific method has five basic steps;

1. Ask a Question (just like the research student asking which is a better fuel between ethanol and gasoline)

2. Do Background Research

3. Construct a Hypothesis

4. Test Your Hypothesis by Doing an Experiment

5. Analyze Your Data and Draw a Conclusion

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Papessa [141]

Answer:

The answer is β=0,85 rads

Explanation:

As the ladder is leaning against the building, we can imagine there´s a triangle where 20ft is the hypotenuse and 15ft is the maximum vertical distance between the ladder and the ground, it means, the leg opposite to β which is the angle we need

Let β(betha) be the angle between the ladder and the ground

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In this case we will need to find β, this way:

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We also have that 2πrads is equal to 360°, in this way we find how much β is in radians:

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How does deforestation contribute to the greenhouse effect?
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