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Vitek1552 [10]
3 years ago
11

Some birds migrate 20,000 miles. If 1 mile is 1.6 kilometers, calculate the distance these birds fly in kilometers.

Chemistry
1 answer:
Andre45 [30]3 years ago
4 0

Answer:

32000 kilometers

Explanation:

In order to <u>convert from miles to kilometers</u>, we need to use a<em> conversion factor</em>. In other words, we put miles in the denominator and kilometers in the numerator, as follows:

  • 20000 miles * \frac{1.6km}{1mile} = 32000 kilometers

That way the units for miles cancel each other, leaving the equivalent amount in kilometers.

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How many grams are in 2 moles of copper
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In 2 moles of copper, there are 319.2172 grams.

Explanation:

Quick conversion chart of moles Copper(II) Sulfate to grams 1 moles Copper(II) Sulfate to grams = 159.6086 grams 2 moles Copper(II) Sulfate to grams = 319.2172 grams

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H2O2 → H2O + O2 as a balanced equation
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Answer:

2H2O2 → O2 + 2H2O

Explanation:

<u>2H2O2</u>

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O : 2+2=4

First, be sure to count all of H and O atoms on each side of the chemical equation.  Once you know how many of each type of atom you have you can only change the coefficients (the numbers in front of atoms or compounds) in order to balance the equation.

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What is difference between cathod ray and electricity
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Which of the following sets of terms best describes sound waves
wolverine [178]

Sound waves are D) Mechanical and Longitudinal

Explanation:

In physics, waves are classified into two types:

  • Mechanical waves are those waves that need a medium to propagate - these waves are produced by the vibrations of the particles of the medium
  • Electromagnetic waves are produced by the alternating vibrations of electric and magnetic fields - they are the only waves that can also travel through a vacuum, so they do not need a medium

Moreover, waves are further classified into:

  • Transverse waves are those in which the vibration of the wave occurs in a direction perpendicular to the direction of propagation of the wave
  • Longitudinal waves are those in which the vibration of the wave is parallel (back and forth) to the direction of propagation of the wave

Sound waves are oscillations of a medium that occurs back-and forth along the direction of propagation of the wave. Therefore, they are mechanical (they need a medium to propagate) and longitudinal. So the correct answer is

D) Mechanical and Longitudinal

Learn more about sound waves:

brainly.com/question/4899681

#LearnwithBrainly

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