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Ann
2 months ago
14

Huan wants to enter the science fair at his school. He has a list of ideas for his project. Which questions could be answered th

rough scientific investigation? Check all that apply. Does pressure have an effect on the volume of a gas? Which physicist was the smartest? Is the information on the periodic table difficult to understand? Which brand of soap is the best for cleaning grease off dishes? Which laboratory experiment is the most fun to perform?
Computers and Technology
1 answer:
maria [1K]2 months ago
4 0

Answer:

The science fair showcases experiments that validate scientific concepts. Students typically bring supplies or laboratory items and present experiments as if performing feats of magic. There are specific phenomena that science can demonstrably establish and share with others.

Among the proposed questions, these can be experimentally validated:

  • Does pressure influence a gas's volume?
  • Which soap brand is best for removing grease from dishes?
  • Which laboratory experiment is the most enjoyable to conduct?

The following cannot be substantiated through experimentation but can be discussed:

  • Is the periodic table's information challenging to comprehend?
  • Which physicist holds the title of the smartest?
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Define a new object in variable sculptor that has properties "name" storing "Michelangelo"; "artworks" storing "David", "Moses"
zubka84 [1067]

Answer:

String [] artworks = {"David","Moses","Bacchus"};

Sculptor sculptor = new Sculptor("Michaelangelo",artworks,

"March 6, 1475","February 18, 1564");

Explanation:

  • In order to successfully tackle this task;
  • You should create a class (Java is the chosen language) featuring fields for the name, an array of artworks (strings), the date of birth and the date of death.
  • Utilize a constructor to initialize these fields
  • In a separate class SculptorTest, within the main method, generate a String array artworks assigned to {"David","Moses","Bacchus"};
  • Then create a new object of the class using the code provided in the answer section.
  • Refer to the provided code for the complete class definition below:

public class Sculptor {

private String name;

private String [] artworks;

private String bornDate;

private String diedDate;

public Sculptor(String name, String[] artworks, String bornDate, String diedDate) {

this.name = name;

this.artworks = artworks;

this.bornDate = bornDate;

this.diedDate = diedDate;

}

}

//Test Class with a main method

class SculptorTest{

public static void main(String[] args) {

String [] artworks = {"David","Moses","Bacchus"};

Sculptor sculptor = new Sculptor("Michaelangelo",artworks,

"March 6, 1475","February 18, 1564");

}

}

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3 months ago
Explain working principle of computer?​
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Answer:

The principle behind how computer systems operate involves a primary machine-based function that remains invisible to us, serving as a control center that changes the input data into output. This central element known as the central processing unit (CPU) illustrates that the operation of computers is quite intricate.

Explanation:

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4 months ago
Tanya wants to include a video with all its controls on her web page. The dimensions of the video are as follows:
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I believe the correct answer is formats
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Explain how abstraction is used in a GPS system
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Answer

Abstraction in GPS technology allows the system to use clearly defined interfaces while enabling the integration of additional, more complex functionalities.

Explanation

The GPS system employs abstraction to organize layers of complexity for user interaction. It connects satellite-based positioning and timing systems to enable a radio receiver to acquire signals across four dimensions—latitude, longitude, altitude, and time—after synchronizing this data.


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In cell F15, insert a function that will automatically display the word Discontinue if the value in cell D15 is less than 1500,
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Answer:

=IF(D15<1500, "Discontinue", "No Change")

Explanation:

In an Excel environment, you should navigate to cell F15 and apply the IF function. The structure of the IF function is

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Your condition is placed before the first comma, which is D15 < 1500.

The second segment, located before the second comma, is the text to display when D15 is below 1500, which is "Discontinue".

Finally, the last part should show text if D15 is 1500 or higher, which is "No Change".

The complete formula can be expressed as =IF(D15<1500, "Discontinue", "No Change")

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