![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
The density of human body is about 10 cubic meters, and the mass of one person is 50kg My calculation process is v = m / P = 50kg / 1000kg / M m3, but the result is 1 / 20 m3. I don't think the data is correct
The answer is right, and actually people are about this size
The density of human body is similar to that of water. How many kg is the mass of a normal adult? How many cubic meters is its volume?
The density of water is 1.0 times 10
The density of human body is similar to that of water. The mass of a normal adult is about 60kg, and its volume is 60 / (1 * 1000) = 0.06m3
The density of human body is almost the same as that of water. Try to calculate the buoyancy of 60kg people in the air (air density = 1.29kg/m3)
RELATED INFORMATIONS
- 1. When x = ~ 2, a times the fifth power of x plus B times the third power of x plus CX minus 1 equals 5? Please help... Urgent!
- 2. m3(m-2n)=n3(2m-n)=? Factorization problem
- 3. Why is the n-th power of 2 minus 1 divided by 7 equal to N divided by 3?
- 4. The minimum value of function y = sin ^ 2x + 2 / sin ^ 2x on (0. π / 2]
- 5. Given x-3x + 1 = 0, find x + X-2 and X + x-4
- 6. Given that the x power of 10 is 20 and the Y power of 10 is 1 / 5, then the x power of 9 / 3 is 2Y=
- 7. Given that f (x) = e ^ x-ax-1, if f (x) increases monotonically in the domain R, the value range of a is obtained Let f (x) = e ^ x-ax-1, 1. If f (x) increases monotonically in the domain R, find the value range of A 2. If f (x) decreases monotonically on (negative infinity, 0) and increases monotonically on [0, positive infinity), find the value of A
- 8. The quadratic equation of one variable (3x + m) ^ 2 = n (x-3) ^ 2 is reduced to a general form The univariate quadratic equation (3x + m) ^ 2 = n (x-3) ^ 2 is reduced to a general form, which is a univariate quadratic equation about X, and Mn is a constant
- 9. When a ＜ 0, B ＜ 0 - A + 2 √ ab-b is reduced to what?
- 10. Write the simplest "and not" expression of logic function according to the following truth table A B C D F A B C D F 0 0 0 0 1 1 0 0 0 1 0 0 0 1 1 1 0 0 1 0 0 0 1 0 1 1 0 1 0 1 0 0 1 1 1 1 0 1 1 1 0 1 0 0 0 1 1 0 0 0 0 1 0 1 0 1 1 0 1 0 0 1 1 0 0 1 1 1 0 1 0 1 1 1 0 1 1 1 1 1
- 11. The average density of human body is about 1.06g/cubic centimeter, which should be 1.06g/cubic centimeter____ Kg / m3, a middle school student with a mass of 50kg, its volume is ____ Cubic meter____ Cubic decimeter_____ Cubic centimeter
- 12. The density of the human body and the density of water, According to Archimedes' principle, if the human body falls into the water and the water discharged is larger than the human body, then the human body will float on the water surface. If the density of the human body is higher, or the density of the water is higher, why do some people sink and others float In addition, in the fresh water of sea water, does the sinking of human body have something to do with floating
- 13. An elephant weighs 600 kg. The contact area between the foot and the ground is 600 square centimeters. How much pressure does the elephant exert on the ground when it stands on the ground with four feet?
- 14. The weight of an elephant is 5000 kg, and the area of each foot is 600 square cm
- 15. The density of a brick is 2.5 × 10 cubic kg / m3, and the maximum pressure it can bear is 7.35 × 10 quintic PA The maximum pressure that the ground can bear is 1.5 × 10 cubic Pascal?
- 16. The density of a brick is 2.0 g per cubic centimeter, and the maximum pressure it can bear is 9.0 × 10 cubic Pascal. How many meters can be built with this brick? Take the whole number
- 17. The cylinder with the height of 10 cm is erected on the horizontal table. The pressure of copper block on the table is calculated (P (copper) = 8.9 × 10 cubic kg / M cubic)
- 18. The weight of an elephant is 6000kg, and the landing area of each foot is 600cm2. Try to calculate the pressure of the elephant on the ground when standing. (G is 10N / kg)
- 19. The two solid cubes have the same pressure on the horizontal plane, and the relationship between their density is The two solid cubes have the same pressure on the horizontal plane, and the relationship between their density is P1 > P2 (the letter of density will not be printed, instead of P). If the pressure of the two cubes on the horizontal ground is F1 and F2 respectively, then F1 is the same_________ F2 (greater than, less than, equal to) Why?
- 20. The density of a is higher than that of B. the pressure of these two cubes on the horizontal ground is as follows A. P a = P B B. P a > P B C. P a < P B D. All of the above are possible