2 years ago

T Object]User:

1 answer:

3 0

The second one, air is a poor conductor. If it weren't it wouldn't be used as such in construction. It's not the best insulator, but is quite efficient, and much cheaper to include a layer of air inside a wall than to add additional layers of asbestos :)

You might be interested in

A hiker walks 200 m west and then walks 100 m north. In what direction is her resulting displacement?a. northb. westc. northwest

emmainna [20.7K]

Answer:

Option (C) is correct.

Explanation:

Assuming that the hiker starts walking from the origin O as shown in the figure.

First, he walks 200 m west to point A (say), then he walks 100 m north to the final point B (say) as shown in the figure.

The final point B is in the north-west direction, therefore, the resulting point is in the north-west direction.

Hence, option (C) is correct.

7 0

2 years ago

Using a simple machine, a student is able to lift a 500N weight by applying only 100N.

pishuonlain [190]

Hey there!

$a \ student \ is \ able \ to \ lift \ a \ 500(n) \\ weight \ by \ applying \ only \ 100(n) \\ \\ so, \ this \ info \ here, \ we \ simply \ divide \ by \\ how \ much \ this \ kid \ lifted, \ by \ the \ weight \ he/she \\ \ is \ applying. \\ \\ \left[\begin{array}{ccc}\boxed{\boxed{500(n)/100(n)}}\end{array}\right] \\ \\ and \ from \ this,\ your \ answer \ would \ \\ conclude \ to \ be \ (5) \\ \\ \boxed{5} \ would \ be \ your \ answer!$

Hope this helps you!

7 0

2 years ago

Where might you look on the internet to find good scientific information about illness

user100 [1]

It depends on what illness and what country you are in but Mayo Clinic and Johns Hopkins are good sources.

5 0

2 years ago

Read 2 more answers

Which physical property is best measured using only a balance?

Step2247 [10]

The answer is C-Mass

6 0