Physics: What is the power dissipated by the parallel resistor circuit shown above?

The right answer is 131812.5 .Explanation:The given values are:Mass,m = 15 kgVelocity,v = 45 m/sAs we know,⇒ On putting the values, we get⇒ ⇒ According to the question, ⇒ ⇒ ⇒ hence,⇒ or,⇒ ⇒ ⇒ ...

What is the power dissipated by the parallel

Ответ:

itssdaen

25.12.2022

Physics

The right answer is "131812.5".

Explanation:

The given values are:

Mass,

m = 15 kg

Velocity,

v = 45 m/s

As we know,

⇒ PE_1=mgh

On putting the values, we get

⇒ $=15\times 9.8\times 1000$

⇒ $=147000 \ J$

According to the question,

$KE_1=0 \ J$

$PE_f=0 \ J$

⇒ $KE_f=\frac{1}{2}\times 15\times 45^2$

⇒ $=\frac{1}{2}\times 15\times 2025$

⇒ $=15187.5 \ J$

hence,

⇒ $PE_i=KE_f+W_{air}$

or,

⇒ $W_{air} = PE_i-KE_f$

⇒ =147000-15137.5

⇒ $=131812.5 \ J$

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What is the power dissipated by the parallel resistor circuit shown above?

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