1) What is the density of a block of unknown material with a mass of 16.99 g if the dimensions are:
length = 2.2 cm
height = 1.7 cm
width = 6.1 cm
2) What is the density of a 15.82 g object if the dimensions of the block are:
length = 12.6 mm
height = 9.82 cm
width = 0.0140 m
3) What is the density of a 36.78 g irregularly shaped object if the initial volume of water was 24.1 ml and the volume rose to 54.5 ml after the object was added?
What is the density ?!?
2014-02-10 9:42 pm
回答 (3)
2014-02-10 10:49 pm
✔ 最佳答案
p = m/v1) p = .01699 /(.022 x .017 x .061)= 744.72 kg/m^3
2) p = .01582/( .0126 x .0982 x .0140)= 913.26 kg/m^3
3).03678 / 3.04 x10 ^-5 = 1,209.87 kg/ m^3
2014-02-11 5:54 am
Here on planet earth we have the internet and calculators.
Density is kg/m^3
2.2cm x 1.7cm x 6.1cm = 22.814cm^3(0.000022814m^3)
1) 744.72kg/m^3
2) 915kg/m^3
3) 1209.9kg/m^3
Density is kg/m^3
2.2cm x 1.7cm x 6.1cm = 22.814cm^3(0.000022814m^3)
1) 744.72kg/m^3
2) 915kg/m^3
3) 1209.9kg/m^3
2014-02-11 5:51 am
You should really do the work yourself. Density equals mass divided by volume or d=m/v. Mass has to be in grams and volume has to be in ml or cm3 since 1ml equals 1 cm3. In these cases you multiply the length, width, and height together and you will for example 1 cm3. It is is important you put cm3 since they give you the dimensions unless it is in ml. If you want the work google a density calculator. Btw the density unit is g/ml or g/cm3 ex. 5 g/ml
收錄日期: 2021-04-11 20:22:23
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