Calculate the weight of the pipe. Thickness 0.01 length 4.5 diameter 0.19 density 7.8

There is a physics formula, but I can't remember it clearly. I suggest you check the physics textbook of grade two

How much weight can the prestressed concrete hollow floor with a span of 3.5 meters and a width of 0.5 meters bear? Can five layers of red bricks be placed on the floor?

Is it all paved? How are the five layers of bricks? Are they 240 * 115 * 53 bricks?
When to 60 high, paved five, then five brick height is 0.3 meters
The area of precast slab is 3.5 * 0.5 = 1.75 square meters
When the volume weight of red brick is 18kn / m3, the force on the floor is 540kg per square meter
Generally, the load of precast slab is 150 to 200 kg

How much weight can a reinforced concrete column bear per square meter
I just want to know the general answer. If there are multiple answers, I will take at least the weight I can bear

So, the bearing capacity of reinforced concrete is mainly borne by the concrete, that is to say, the concrete grade determines the bearing capacity of the column. So, when the concrete grade is C20, it means that the concrete standard test block 150 * 150 * 150 is 20n / mm2 during the pressure test. If it is converted into square meter, it is 20000 kn / m2, and so on, C25 concrete

Is the concrete floor 18 meters long, 3.5 meters wide and 18 cm thick cubic meters?

Hello! Our commonly used unit is centimeter, and the machine is what we call centimeter. When you calculate the volume of concrete on the ground, you say that you should unify the units first, and multiply the data on three sides to get the volume. Generally, the unit should be unified into meter, and the output is square meter,

How many cubic meters of concrete do you need to lay a layer of 3cm thick concrete on the floor of a 4m long and 3M wide office?

3cm = 0.03m 4 × 3 × 0.03 = 0.36m3 A: 0.36m3 of concrete is required

How many square meters is the water tank 1.4 meters long, 1.0 meters wide and 0.35 meters high

(L × w × h) × 2

How many square meters is 4 meters high, 4 meters wide and 2.8 meters high?
How much is enough to buy wall stickers
Wrong number. It's not the wall sticker. It's the wallpaper. Each roll is 8 meters long and 45 cm wide, totaling 3.6 square meters. How many rolls do I have to buy to make a complete wall?
4m long 4m wide 2.8m high (⊙ o ⊙)
In addition to knowing how many square meters there are, I also want to know how many rolls of wallpaper will be used.

4 * 4 * 2.8 = 44.8 (M2)
44.8/3.6=12 .4444444
There's no way to get 13
I'm a student. Please forgive me
Not necessarily

4.2 meters long, 3.9 meters wide, 3 meters high, how many square meters are there

The surface area is (4.2 × 3.9 + 4.2 × 3 + 3.9 × 3) × 2 = 81.36 (M2)

The toilet is 4 meters long, 1.90 meters wide and 2.5 meters high. How many square meters are there

4×1.9=5.6㎡

How many square meters are 9 meters long, 9 meters wide, 7 meters high, 4 meters and 5 meters high

If it is volume, it is:
9.9 x7x4.5 = 311.85 (M3)
In case of surface area:
2X (9.9x7 + 9.9x4.5 + 7x4.5) = 290.7 (M2)

Calculate the weight of the pipe. Thickness 0.01 length 4.5 diameter 0.19 density 7.8