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Wire Frame Cube In Python

[Homework Question] A room is 6 m long, 5 m wide and 3 m high . The four walls and ceiling are to be painted. If the windows and door is 14 square meters, what area is to be painted?

Given A room with 6 m= long 5m= wide3 m= high And window and door =14 square metersSo the panted area= area of cuboid-areas of the floor- area of windows and doors =2(6*5+6*3+5*3)-6*5-14= 82m^{2}Math Homework Help

How do I print a pyramid pattern in JavaScript?

Try this in your web developer console://n is the number of lines in your pyramid
function displayPyramid(n) {
for (var i = 0; i < n; i++) {
var str = '';
for (var j = 1; j < n-i; j++) {
str = str + ' ';
}
for (var k = 1; k <= (2*i+1); k++) {
str = str + '*';
}
console.log(str);
}
}
Above progam will output like thisdisplayPyramid(8);

//output

*
***
*****
*******
*********
***********
*************
***************
Hope this would help you.

How do I calculate the weight of a hollow circular stainless steel weight of 1 m?

Your question is not particularly clear. However, you can obtain the weight by first calculating the volume, then multiply by the density of the stainless steel. Density of steel varies according to the alloy contents. You can assume average density of 7.8g/cm^3.From your question I could deduce that the material is a hollow cylinder of height 1metre. Assuming inner radius of r and outer radius of R and applying the common formula Volume =Pi.(R-r)^2.h (cm^3)Density =7.8g/cm^3Weight = density x volume (g)pi =3.142H=1 mWeight will then depend on the thickness (R-r)HenceWeight = 3.142x7.8 x (R-r)^2 (g)

A string of length 0.800 is vibrating at 100 in its second harmonic and producing sound that moves at 340 .?

A string of length 0.800 m is vibrating at 100 hz in its second harmonic and producing sound that moves at 340m/s .

What is true about the frequency and wavelength of this sound?
A:The wavelength of the sound is 0.800 .
B: The wavelength of the sound is 3.40 .
C:The frequency of the sound is 100 .
D:The frequency of the sound is 425 .

1. A
2. A,C
3. B
4. B, C

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