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enyata [817]
3 years ago
15

Explain why machine can"t be 100% efficient practically?​

Physics
2 answers:
inna [77]3 years ago
8 0
Retiro en la capital y se lo dijo que el gobierno no tiene la casa en el bus y el que no tiene que ver si no
Zigmanuir [339]3 years ago
5 0

Answer:

Heat

Explanation:

Heat is the main component in why everything is not 100% efficient. Heat is a byproduct of everything and cannot be avoided.

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A scientific idea becomes valid when it is
SIZIF [17.4K]

Answer:

are adopted when they usefully describe the world. evidence

Explanation:

A scientific idea is validated when it is published in the peer-reviewed literature in the field, has stood up to further tests, and has been positively cited.

7 0
3 years ago
Changing the length of an air column will alter its _______
bija089 [108]
Natural Frequency 
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Which change increases the electric force between objects?
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Well, the force is proportional to the product of the charges
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3 years ago
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A car is going south on I-69 at 33 m/s (74 mph). The car has good brakes so its maximum braking acceleration is – 8.5 m/s^2 . Tr
dmitriy555 [2]

Answer:

1.69515 seconds

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

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v^2-u^2=2as\\\Rightarrow s=\frac{v^2-u^2}{2a}\\\Rightarrow s=\frac{0^2-33^2}{2\times -8.5}\\\Rightarrow s=64.06\ m

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Time = Distance / Speed

\text{Time}=\frac{55.94}{33}\\\Rightarrow \text{Time}=1.69515\ seconds

The reaction time cannot be more than 1.69515 seconds

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3 years ago
What is the purpose of oil used in a car's engine?
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