Show the step very clearly.
1.The figure shows a tank of length 80 cm, width 40 cm and height 50 cm.3/5 of the tank is filled up with water.
a) Find the volume of water.
b) If 12 identical metal balls of volume 400 cm3 each are put into the tank, find the rise in water level.
Maths Questions (Very Urgent)
2007-03-06 3:51 am
回答 (4)
2007-03-06 4:03 am
✔ 最佳答案
Given:length of tank, L = 80 cm,
width of tank, W = 40 cm,
height of tank, H= 50 cm
Solution:
Volume of tank = L x W x H cm^3
3/5 of tank is filled up with water, therefore,
Volume of water Vw = L x W x H x 3/5 = 80 x 40 x 50 x 3/5 =96000 cm^3
Total volume of 12 metal balls: Vb = 12 x 400 cm^3 = 4800 cm^3
Rise of water level in the tank = volume of ball / plane area of tank
= 4800 / (80 x 40)
= 1.5 cm^3
2007-03-05 20:04:37 補充：
Rise of water level in the tank = volume of ball / plane area of tank= 4800 / (80 x 40)= 1.5 cm
2007-03-05 20:04:52 補充：
Rise of water level in the tank = volume of ball / plane area of tank= 4800 / (80 x 40)= 1.5 cm
2007-03-06 4:57 am
1.The figure shows a tank of length 80 cm, width 40 cm and height 50 cm.3/5 of the tank is filled up with water.
The volume of water is
80cm X 40cm X 50cm X 3/5 = 96000cm(3)
The rise in water level is
400cm(3) X 12 / (80cm X 40cm)
=4800cm(3) / 3200cm(2)
=3/2cm
The volume of water is
80cm X 40cm X 50cm X 3/5 = 96000cm(3)
The rise in water level is
400cm(3) X 12 / (80cm X 40cm)
=4800cm(3) / 3200cm(2)
=3/2cm
參考: myself
2007-03-06 4:06 am
=80x40x50x3/5
=96000cm^3
=400x12
=4800cm^3
=4800/ 80 /40
=15cm
=96000cm^3
=400x12
=4800cm^3
=4800/ 80 /40
=15cm
2007-03-06 3:56 am
the volume of the water
=80x40x50x3/5
=96000cm^3
the volume of the total of the balls
=400x12
=4800cm^3
the rise in water tank
=4800/ 80 /40
=15cm
=80x40x50x3/5
=96000cm^3
the volume of the total of the balls
=400x12
=4800cm^3
the rise in water tank
=4800/ 80 /40
=15cm
收錄日期: 2021-04-12 18:43:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070305000051KK03537