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Vika [28.1K]
3 years ago
5

A thermometer is placed into a flask of water with pieces of ice and reads 273.15. Which temperature scale is being used? A. Kel

vin B. Celsius C.Centigrade
D. Fahrenheit
Physics
2 answers:
Aleks [24]3 years ago
8 0

A.) Kelvin bc it it wouldnt make sense for the other three options plus options B.) and C.) are the same :)

zzz [600]3 years ago
6 0

A. Kelvin. It is 32 degrees fahrenheit

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A classroom is about 3 meters high, 20 meters wide and 30 meters long. If the density of air is 1.29 kg/m3, what is the mass of
Deffense [45]

Answer:

the mass of the air in the classroom = 2322 kg

Explanation:

given:

A classroom is about 3 meters high, 20 meters wide and 30 meters long.

If the density of air is 1.29 kg/m3

find:

what is the mass of the air in the classroom?

density = mass / volume

where mass (m) = 1.29 kg/m³

volume = 3m x 20m x 30m = 1800 m³

plugin values into the formula

  1.29 kg/m³   =  <u>      mass    </u>

                             1800 m³

mass =  1.29 kg/m³  ( 1800 m³ )

mass = 2322 kg

therefore,

the mass of the air in the classroom = 2322 kg

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