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charle [14.2K]
3 years ago
8

How would a sandblasted rock differ from a rock that hasnt been sandblasted

Chemistry
1 answer:
KengaRu [80]3 years ago
7 0
Sandblasted: More smooth because all the rough edges are "blasted" away. And slightly smaller because of the loss of the edges. 

Non-Sandblasted: Not smooth; rough. 
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An inefficient appliance costs less to operate than an efficient one, because it takes more energy to do the same job.
Nesterboy [21]

An inefficient appliance costs less to operate than an efficient one, because it takes more energy to do the same job is "False".

<u>Answer:</u> Option B

<u>Explanation:</u>

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The choice for energy efficiency is "ENERGY STAR LABEL" makes it known to consumers or businesses that a product, home or building is more energy efficient than others on the market.

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3 years ago
How did the building of granaries indicate that Harappan civilization was economically strong?
kvasek [131]

It showed that the richest Harappan citizens had excess food to trade or sell. It showed that Harappa could store excess food to save, sell, or trade with others.

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3 years ago
How are Kelvin scale and celcius scale similar <br>​
Alekssandra [29.7K]

Answer: The Kelvin scale is related to the Celsius scale. The difference between the freezing and boiling points of water is 100 degrees in each, so that the kelvin has the same magnitude as the degree Celsius.

Explanation:

Celsius is, or relates to, the Celsius temperature scale (previously known as the centigrade scale). The degree Celsius (symbol: °C) can refer to a specific temperature on the Celsius scale as well as serve as a unit increment to indicate a temperature interval(a difference between two temperatures or an uncertainty). “Celsius” is named after the Swedish astronomer Anders Celsius (1701-1744), who developed a similar temperature scale two years before his death.

K = °C + 273.15

°C = K − 273.15

Until 1954, 0 °C on the Celsius scale was defined as the melting point of ice and 100 °C was defined as the boiling point of water under a pressure of one standard atmosphere; this close equivalence is taught in schools today. However, the unit “degree Celsius” and the Celsius scale are currently, by international agreement, defined by two different points: absolute zero, and the triple point of specially prepared water. This definition also precisely relates the Celsius scale to the Kelvin scale, which is the SI base unit of temperature (symbol: K). Absolute zero—the temperature at which nothing could be colder and no heat energy remains in a substance—is defined as being precisely 0 K and −273.15 °C. The triple point of water is defined as being precisely 273.16 K and 0.01 °C.

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3 years ago
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boyakko [2]

Answer:B or C

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3 0
3 years ago
Is the following sentence true or false?
hammer [34]
The answer is true because what there organs and stuff are made of
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