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bagirrra123 [75]
3 years ago
10

Water cools from 68 cto 23 c in 30 min. What is the rate of temperature change?

Physics
2 answers:
trapecia [35]3 years ago
3 0
1.5 c a minute. hope it helps
Snezhnost [94]3 years ago
3 0

Answer:

-1,5º per minute.

Explanation:

To solve this we just need to divide the number of grades that the temperature cooled off between the amount of minutes in which that change was experienced:

Change in temperature= Final temperature-initial temperature

Ct=23-68=-45

we divide the -45º by the 30 minutes:

-45/30=-1,5

So we know that the water changed its temperature at -1,5 grades per minute.

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Answer: 7022.2kg/m³, yes, I was cheated

Explanation:

Density of an object is defined as the ratio of the mass of the object to its volume. Mathematically;

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Density = 0.0158/0.00000225

Average density of the metal = 7022.2kg/m³

Since the standard density of Gold is 19,320kg/m³ and is higher than the density prescribed for me, it shows the I was cheated.

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