3 years ago

A compound machine is made up of one simple machine True or False

2 answers:

6 0

True is the answer I believe so

5 0

the statement is false. Compound machines are made up of two or more simple machines

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xxTIMURxx [149]

I believe the last one about the bike is correct.

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romanna [79]

In series circuit, Req = R₁ + R₂ + R₃ + ···

In parallel circuit, $\frac{1}{Req} = \frac{1}{R1} + \frac{1}{R2} + \frac{1}{R3} +...$

total resistance in the upper branch = R₂ + R₃ = R₂ + 2

$\frac{1}{Req} = \frac{1}{R2+R3} + \frac{1}{R1}$

$\frac{1}{4} = \frac{1}{R2+2} +\frac{1}{6}$

R₂ + 2 = 12

R₂ = 10Ω

$\frac{1}{Req} = \frac{1}{R2+R3} + \frac{1}{R1}$

$\frac{1}{Req} = \frac{1}{2+1} + \frac{1}{4}$

Req = 1.7Ω

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natita [175]

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Lubov Fominskaja [6]

Answer: moving object :)

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2 years ago