Yes, elephants can hear through their feet only when their is danger or signal. Isn't it amazing?
Considering the definition of density, you obtain that:
- Part A: the density of gold is 19.3 g/cm³.
- Part B: the density of iron is 7.8 g/cm³.
<h3>Definition of density</h3>
Density is defined as the property that allows to measure the amount of mass in a certain volume of a substance.
The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
density= mass÷ volume
It can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.
<h3>Density in this case</h3>
In this case, you know that:
- A sample of gold has mass of 38.6 grams and a volume of 2 cm³.
- A sample of iron has a mass of 46.8 grams and a volume of 6 cm³.
Replacing in the definition of density:
- Gold: density= 38.6 g÷ 2 cm³
- Iron: density= 46.8 g÷ 6 cm³
Solving:
- <u><em>Gold: density= 19.3 g/cm³</em></u>
- <u><em>Iron: density= 7.8 g/cm³</em></u>
In summary, the density of gold is 19.3 g/cm³ and the density of iron is 7.8 g/cm³.
Learn more about density:
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Answer:
If something is at rest it will stay at rest UNTIL a force acts upon it same thing if it is moving it will go in a straight line unless an outside force is acted upon it
This law is also known as the law of inertia.
Muscles transfer force to bones through tendons. In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens. ... The muscle that is contracting is called the agonist and the muscle that is relaxing or lengthening is called the antagonist. One example is tricep
Explanation: The light-dependent reactions utilize light energy to produce two molecules required for the following stage of photosynthesis: the energy warehouse molecule ATP and the decreased electron transport NADPH. In plants, the light reactions occur in the thylakoid membranes of organelles termed chloroplasts.Oct 26, 2016 thats a explanation for u hope it heled [; dand my hand hurts ];
