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If a stone tablet is 50cm in length, 20cm in width and 0.7T in weight, what is its density kg / M? If 1 / 4 of it is removed, what is the density of the remaining part kg / M It's urgent,
First of all, I'll change it for you. It's kg / m ^ 3
50*20*3=30000cm^3
30000cm^3=3m^3
0.7t=700kg
700 divided by 3 = 3 / 700
3/700*3/4=9/2800
If a stone is 50cm in length, 20cm in width, 0.3m in height and 0.075t in mass, what is its density?
In addition, I hope I can explain the problem of conversion. I don't want to know the rate, but the method
0.075t=75kg
v=0.5*0.2*0.3=0.03m^3
m/v=75/0.03=2500kg /m^3
Unit conversion:
1g/cm3=1000000g/1000000cm^3=1000kg /m^3
Multiply the numerator and denominator by 10 ^ 6
1. Make a carton of 50cm long, 35cm wide and 20cm high with cardboard. What is the volume of the carton?
2. A kind of cube water tank, measuring the edge length from the inside is 0.4m, how many liters can the water tank hold at most?
3. Build a cuboid of 2m wide and 1m high with 80 square timbers. What is the average volume of each square timber? How many cubic decimeters?
1. 50 * 35 * 20 = 35000 (cubic centimeter) = 35 (cubic decimeter)
2, 0.4 * 0.4 * 0.4 = 0.064 (M3) = 64 (L)
3, 2 * 1 * 1.5 = 3 (M3,)
3 / 80 = 0.0275 (M3) = 37.5 (cubic decimeter)
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