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GenaCL600 [577]
3 years ago
9

Does a cool pond have more or less heat energy than a red-hot iron nail? Explain

Physics
2 answers:
eimsori [14]3 years ago
8 0

Answer:

Less heat energy

Explanation:

cus I said so

erastova [34]3 years ago
6 0

Answer:

Less heat energy The cool water still has heat because the particles in the water are moving but it dose not have as much heat energy

Explanation:

The cool water still has heat because the particles in the water are moving but it dose not have as much heat energy. need brainliest pls

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Compare a wedge and a screw with an inclined plane
Jlenok [28]

a wedge is a small inclined plane

a screw is an inclined lane wkich goes round a centrral axis  ... like a 'spiral' or helical staircase


easier per step ... more steps

3 0
2 years ago
Please help me on this
QveST [7]

Answer:

i think its bulb 2

Explanation:

4 0
2 years ago
Which one of the following environments will sound not travel through?
Eduardwww [97]
The answer is d. Vacuum

Sound waves need a molecul to travel through. Gas , solid, annd liquid provide that medium.

But vacuum is just an empty space withour any moleculs in it.

Thats why in space, no one can hear you scream. Because it simply not physicsly possible
7 0
2 years ago
Use differentials to estimate the amount of metal in a closed cylindrical can that is 10 cm high and 4 cm in diameter if the met
ira [324]

The amount of metal in a closed cylindrical can that is 10 cm high and 4 cm in diameter if the metal on the top and the bottom is 0.1 cm thick and the metal on the sides is 0.05 cm thick is 8.8 cm.

The formula for calculating the volume of a cylinder is given below.

V = πr^2 h

Get the differential of the volume as shown:

dV = V/ h dh + V / r dr

V/ h = πr^2

V/ h  = 2  πr h

Now, the differential becomes

dV =  πr^2dh +  2πrh dr

Given the following parameters i.e. diameter and height

dh = 0.1 + 0.1 = 0.2 cm

dr = 0.05 cm

h = 10 cm

d = 4 cm  

r = 2cm

Substituting the values in the above equation, we get

dV = 3.14(2)^2(0.2)  + 2(3.14)(2)(10)(0.05)

dV = 2.512 + 6.28

dV = 8.792 cm

dV = 8.8 cm

If you need to learn more about diameter click here:

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4 0
1 year ago
Does the temperature of a material always increase as it is heated? Explain briefly.
Lerok [7]
To answer your question, no,
temperature does not always increase as it is heated. Adding heat does not always increase the temp.
For example, when water is boiling, adding heat does not increase the temperature. This occurs at the boiling temp of every substance that can vaporize. 

Hope this explanation was helpful and brief! :)
6 0
3 years ago
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