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pashok25 [27]
2 years ago
13

What is perfect machine?Why is this machine not possible in the real life?​

Physics
1 answer:
andrezito [222]2 years ago
5 0

Explanation:

The machine whose efficiency is 100% is known as perfect machine .This machine is not possible in real life because every machine is affected by the overcoming friction due to which is efficiency become less than hundred percent .

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Kaya collects the data shown in the table.
Colt1911 [192]

<u>Answer;</u>

= 20 ohms

<u>Explanation;</u>

  • According to the Ohm's law, the current through a conductor is directly proportional to the potential difference if other environment conditions are kept constant.

Therefore; I α V

Hence; V = IR, where R is the constant, called the resistance

Therefore; R = V/I

                  R = 6.0 /0.3

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3 0
3 years ago
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Imagine that you are immersed under a beautiful cosmic meteor shower. Which
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The glass has a special tint to focus as you turn it a certain way!
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- An experienced pilot can keep an engineless glider aircraft aloft for hours by
Annette [7]

Answer:

F<em>lift=</em>5.00×10³ N

F<em>horizontal</em>=0.50×10³ N

F<em>g</em>=4.80×10³ N

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A free-body diagram of the glider.

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^

|  F<em>lift</em>

|  

|

|---->F<em>horizontal</em>

|

| F<em>g</em>

|

∨

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