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2 years ago

14

What could I do to make this bridge hold more weight without making it heavier? Lateral bracing and a design on the top will be

added.
The criteria is that it has to be a truss bridge made with only popsicle sticks and hot glue.

1 answer:

antoniya [11.8K]2 years ago

7 0

Answer:

How to make a curved wooden Mincraft bridge you ask?

Making a simple wooden bridge requires you wood and some pieces of stone.

Explanation:

Hope this helps

You might be interested in

A 2.5 m-high, 4-m-wide, and 80-cm-thick wall of a house has a thermal resistance of 0.0125°c/W. The thermal conductivity of the

ohaa [14]

Answer:

The correct answer is part 'c': 6.4 W/m-K

Explanation:

We know that the thermal resistance of a wall is given by

$R_{wall}=\frac{L}{kA}$

where,

L = thickness of wall

k = thermal conductivity of wall

A = Surface area of wall

Applying values we get

$k=\frac{L}{R_{wall}A}$

$k=\frac{80\times 10^{-2}}{0.0125\times 2.5\times 4}\\\\\therefore k=6.4W/mK$

5 0

3 years ago

An engineer must design a rectangular box that has a volume of 9 m3 and that has a bottom whose length is twice its width. What

Jet001 [13]

Answer:

$Length =3$ $Height = 2$ and $Width = \frac{3}{2}$

Explanation:

Given

$Volume = 9m^3$

Represent the height as h, the length as l and the width as w.

From the question:

$Length = 2 * Width$

$l = 2w$

Volume of a box is calculated as:

$V = l*w*h$

This gives:

$V = 2w *w*h$

$V = 2w^2h$

Substitute 9 for V

$9 = 2w^2h$

Make h the subject:

$h = \frac{9}{2w^2}$

The surface area is calculated as:

$A = 2(lw + lh + hw)$

Recall that: $l = 2w$

$A = 2(2w*w + 2w*h + hw)$

$A = 2(2w^2 + 2wh + hw)$

$A = 2(2w^2 + 3wh)$

$A = 4w^2 + 6wh$

Recall that: $h = \frac{9}{2w^2}$

So:

$A = 4w^2 + 6w * \frac{9}{2w^2}$

$A = 4w^2 + 6* \frac{9}{2w}$

$A = 4w^2 + \frac{6* 9}{2w}$

$A = 4w^2 + \frac{3* 9}{w}$

$A = 4w^2 + \frac{27}{w}$

To minimize the surface area, we have to differentiate with respect to w

$A' = 8w - 27w^{-2}$

Set A' to 0

$0 = 8w - 27w^{-2}$

Add $27w^{-2}$ to both sides

$27w^{-2} = 8w$

Multiply both sides by $w^2$

$27w^{-2}*w^2 = 8w*w^2$

$27 = 8w^3$

Make $w^3$ the subject

$w^3 = \frac{27}{8}$

Solve for w

$w = \sqrt[3]{\frac{27}{8}}$

$w = \frac{3}{2}$

Recall that : $h = \frac{9}{2w^2}$ and $l = 2w$

$h = \frac{9}{2 * \frac{3}{2}^2}$

$h = \frac{9}{2 * \frac{9}{4}}$

$h = \frac{9}{\frac{9}{2}}$

$h = 9/\frac{9}{2}$

$h = 9*\frac{2}{9}$

$h= 2$

$l = 2w$

$l = 2 * \frac{3}{2}$

$l = 3$

Hence, the dimension that minimizes the surface area is:

$Length =3$ $Height = 2$ and $Width = \frac{3}{2}$

6 0

3 years ago

What is the basic of Architecture?

kobusy [5.1K]

I believe your question is "What are the basics of Architecture?"

Answer:

Architecture is all about<em> people, places and things.</em>

Explanation:

In order to learn about the answer, let's tackle them one-by-one.

First, architecture is the art or practice of designing or constructing building. The basics are pretty simple.

1. People- this refers to the <em>designers, builders and users.</em> This means architecture is all about those who make architecture and those who use it in order to make conscious decisions. It is all about building an environment for people, thus it focuses too on builders. These environments are catered to users. For example, designing a safe place for disabled people.

2. Places- Traveling is very important in order for you to learn the different kinds of architectures in every country. It is, thus, very significant to know<em> where one will build his plan.</em> It is said that <u>"the power of place"</u> can be everlasting.

3. Things- this refers to the <em>built environment</em>. An example of these are the skyscrapers. These are considered to be the "things" that architects design in order to truly scrape the sky. In architecture, one needs to learn what structures and style he wants for his house, church, school, building and the like.

7 0

4 years ago

A 1.5-kg specimen of a 90 wt% Pb-10 wt% Sn alloy (Animated Figure 9.8) is heated to 250°C; at this temperature it is entirely an

Alex17521 [72]

Answer:

A. By hit and trial method 280 C

Explanation:

ion know B sorry

6 0

2 years ago

Tech distractions do NOT include _________.

likoan [24]

D, setting phone BEFORE

7 0

4 years ago