Why is foam a good insulator?

Answers

Answer 1
Answer: air or any sort of gas is not that good in conducting heat in relation to other materials. 
since foam consists of many bubbles with trapped gas it both stops convection by simply being in position, and prevents conduction of heat through it, due to the gas inside
Answer 2
Answer:

Answer:  Foam is a good insulator for two reasons. First, it is filled with gas bubbles; gases conduct heat less effectively than either liquids or solids, and trapping the gas in small bubbles prevents the gas from effectively transferring heat via convection.

Explanation:

Hope this helps <3


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If john is traveling at 8 feet per minute east for 2 hours what is his displacement

Answers

Hello!

The answer is: 960 East feet.

Why?

We need to apply the following formula:

xf=xi+v*t

and  

displacement=xf-xi

So, by substituting we have:

xf-xi=(8ft)/(min) *120min\nd=960ft

Have a nice day!

One way that animals adapt to seasonal change

Answers

Different animals do different things in the seasons, In winter, some fly south for the winter and some hibernate, and some are still around. 
They migrate or hibernate

Which bundles of cells in the lungs that take in oxygen

Answers

Hello,

The bundle of cells in the lungs that take in oxygen is "Red blood cells".

Have A Good Day.

A compound mystery.    why is a can of peas an carrots a mixture? what other mixtures can u list

Answers

a can of carrots and peas is a mixture because you can seperate them without chemicals other mixtures can include...
-oil and water
Lemon juice and tea
Honey and tea
Milk and chocolate
Coffee and cream
 Cream and sugar
Coffee and sugar
Cake ingredients Chocolate and water
Cereal and milk
Oatmeal and raisins
Cookie ingredients 
Sand and water
Orange juice and grenadine 
Sugar and water 
Sugar and tea
Cinnamon and water
Salt and water
Coffee (coffee bean + water)
Mixed drinks (mixer + alcohol)
Tonic water and lime juice
Soda and vanilla syrup

List the objects found in the universe in order of size

Answers

This is apartial list of Solar System objects by size, arranged in descending order of mean volumetricradius, and subdivided into several size classes. These lists can also be sorted according to an object'smassand, for the largest objects,volume,densityandsurface gravity, insofar as these values are available. This list contains theSun, theplanets,dwarf planets, many of the largersmall Solar System bodies(which includestheasteroids), all namednatural satellites, and a number of smaller objects of historical or scientific interest, such ascometsandnear-Earth objects.The ordering may be different depending on whether one chooses radius ormass, because some objects are denser than others. For instance,Uranusis larger thanNeptunebut less massive, and althoughGanymedeandTitanare larger thanMercury, they have less than half Mercury's mass. This means some objectsin the lower tables, despite their smaller radii, may be more massive than objects inthe upper tables because they have a higher density.Manytrans-Neptunian objects(TNOs) have been discovered, and their approximate locations in this list are shown, even though there can be a large uncertainty in their measurement.Solar Systemobjects more massive than 1021kilograms(oneyottagram [Yg]) are known or expected to be approximately spherical. Astronomical bodies relax into rounded shapes (ellipsoids), achievinghydrostatic equilibrium, when the gravity of their mass is sufficient to overcome the structural strength of their material. Objects made of ice become round more easily than those made of rock, and many icy objects are spheroidal at far lower sizes. The cutoff boundary for roundness is somewhere between 100 km and 200 kmin radius.[1]The larger objects in the mass range between 1018kgto 1021 kg (1 to 1000zettagrams [Zg]), such asTethys,Ceres, andMimas, have relaxed to anoblate-spheroidequilibrium due to their gravity, whereas the less massiverubble piles(e.g.AmaltheaandJanus) are roughly rounded,but not spherical, dubbed "irregular".

Why are some electromagnetic waves harmful to you but others are not?

Answers

Answer
They have different frequencies. 


Explanations
Some electromagnetic wave have high frequency than others. hose with high frequency are more harmful than those with low frequency. 

Waves with high frequency have a higher penetrating power and they can kill cells if exposed to it. This makes them harmful. 
Because for example a lightning bolt is an electromagnetic wave. Lighting bolts can hurt you or even kill you. But others waves cant harm you.
Hope this helps