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Ugo [173]
3 years ago
9

All waves transmit energy. Only one type of wave does not require a medium to transmit energy. That is a _____wave?

Physics
2 answers:
SpyIntel [72]3 years ago
8 0
Sound because it’s that one
Dmitrij [34]3 years ago
6 0

Answer:

sound waves

Explanation:

jejehwherrbjwhsbwwbdbehej

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hram777 [196]
So whats the question?

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What are the layers of the earth
AleksAgata [21]

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8 0
3 years ago
Se tiene un objeto a una altura de 8 m generando 450 J de energía potencial cuál es la masa de dicho objeto
fgiga [73]

Answer:

5.73kg

Explanation:

Given data

Height = 8m

Potential Energy = 450J

Required

The mass of the object

From the following expression

PE=mgh

we can substitute g= 9.81m/s^2 and the other parameters to get mass m

450= m*9.81*8

450= m* 78.48

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Hence the mass is 5.73kg

8 0
2 years ago
In order to walk barefoot on hot coals without hurting your feet
siniylev [52]

Before a person walks through burning coal, the person will make sure their feet are very wet. When they start walking on the coal, this moisture will evaporate and form a protective gas layer underneath the person's feet. You can see examples of this if you happen to drip some water on a hot stove or any very hot surface. The water will very easily glide around on top of a newly formed layer of air underneath it -- like air hockey pucks on an air hockey table. Note that when someone walks through burning coal, typically this is also done very quickly to prevent a great deal of exposure to possible harm. By walking quickly, thinking positively, and letting the water cushion you from immediate danger over a short distance, such a task is possible. You may have also heard of physics teachers demonstrating how this principle works by sticking their hand first in a bucket of water and then quickly in a bucket of boiling molten lead. In the lead, their hand is protected briefly by a layer of gas from the evaporated water (the water vapor). I'm fairly sure that there is a name for this particular layer of gas, but I'm afraid the name is beyond me at the moment. In other words, water vapor has a low heat capacity and poor thermal conduction. Very often, the coals or wood embers that are used in fire walking also have a low heat capacity. Sweat produced on the bottom of people's feet also helps form a protective water vapor. All of this together makes it possible, if moving quickly enough, to walk across hot coals without getting burned. WARNING: Do not attempt to perform any of the actions described above. You can seriously injure yourself. Answered by: Ted Pavlic, Electrical Engineering Undergrad Student, Ohio St.  (citing my source)

5 0
3 years ago
Please look at the diagram and ans that question
TEA [102]
I can see that they are running away like my dad did
3 0
2 years ago
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