Answer:
The height of the wall is 2.7 m.
Explanation:
The number of blocks required = 2450. Each cubical block has a side of 20cm(0.2m).
But, volume = length × width × height.
So that,
the volume of each block = (0.2 × 0.2 ×0.2) ![m^{3}](https://tex.z-dn.net/?f=m%5E%7B3%7D)
= 0.008 ![m^{3}](https://tex.z-dn.net/?f=m%5E%7B3%7D)
The total volume of the blocks to be used = 2450 × 0.008
= 19.6 ![m^{3}](https://tex.z-dn.net/?f=m%5E%7B3%7D)
The window has a measurement of 2.5m ×1m;
its space volume = 2.5m ×1m × 0.4m
= 1.0 ![m^{3}](https://tex.z-dn.net/?f=m%5E%7B3%7D)
The door has a measurement of 2m× 3m;
its space volume = 2m× 3m × 0.4m
= 2.4![m^{3}](https://tex.z-dn.net/?f=m%5E%7B3%7D)
Thus, the window space and door space has a volume = 1.0
+ 2.4![m^{3}](https://tex.z-dn.net/?f=m%5E%7B3%7D)
= 3.4![m^{3}](https://tex.z-dn.net/?f=m%5E%7B3%7D)
Total volume of the wall = length × width × height
⇒ The total volume of the blocks - the window space and door space volume = length × width × height
The wall to be constructed has a length of 15m and width 40cm (0.4m).
So that the height could be determined as,
19.6
- (3.4
) = 15m × 0.4m × height
16.2
= 6
×height
⇒ height = ![\frac{16.2}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B16.2%7D%7B6%7D)
height = 2.7 m
Therefore, the height of the wall is 2.7m.
Answer:
I think its called tenements, rundown apartments.
Explanation:
Answer:
We feel afraid because we tremble.
Explanation:
How might the James-Lange theory of emotion describe the relationship between fear and trembling?
Answer:
Explanation:
the rainforest benefits us everyday because people chop down trees to make wood (even though its bad for the rainforest) and to make furniture for people everyday and shops and things to sell to make money to buy food for people and tis a continuing cycle.
The minimum amount of stimulation a person needs to detect a stimulus 50% of the time is called the absolute threshold.