Iron atoms are heavier than gold atoms
Explanation:
Chart:
Materials Specific heat
Gold 0.129
Iron 0.45
The specific heat of a substance is the amount of heat required to raise the temperature of 1g of the substance by 1K.
We can see that the more the mass of a substance, the higher the specific heat needed to raise the temperature.
Specific heat is directly proportional to the mass of substance.
It also dependent on the amount of heat supplied and the nature of the substance.
- The mass of a body is the amount of substance it contains.
- A heavier substance has more number of atoms in it.
- Since iron has a higher specific it, the atoms must be heavier or more than that of gold.
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Specific heat brainly.com/question/7210400
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Scientific form = 6.5 x 109.
The dog runs 300240 miles.
<h3>What is the rate?</h3>
Rate refers to the pace at which something happens. We know that the easiest way to obtain the rate is by the use of proportion. Now we have been told that the dog is able to run 500 miles in 12 seconds.
If the dog runs 500 miles in 12 seconds
The dog runs x miles in 1 second
x = 500 * 1/12
x = 41.7 miles
In two hours we have 2 * 60 * 60 = 7200 seconds
If the dog runs 41.7 miles in 1 second
The dog runs x miles in 7200 seconds
x = 41.7 miles * 7200 seconds/ 1 second
x = 300240 miles
Learn more about proportion:brainly.com/question/2548537
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Given that:
k = 500 n/m,
work (W) = 704 J
spring extension (x) = ?
we know that,
Work = (1/2) k x²
704 = (1/2) × 500 × x²
x = 1.67 m
A spring stretched for 1.67 m distance.
