2 years ago

Which is not a factor that affects the pressure of a gas in a closed container?

Physics

1 answer:

maksim [4K]2 years ago

7 0

it is size of of particles because it does not matter about the size in a closed container

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Nataly_w [17]

Part a)

Power rated on the elevator is given as

$P = 8 kW$

$P = 8 \times 10^3 W$

now the mass that is lifted above is given as

$m = 1225 kg$

height of the elevator lifted is

$h = 9 m$

now the potential energy is given as

$U = mgh$

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now power is defined as rate of energy

$P = \frac{W}{t}$

$8 \times 10^3 = \frac{108045}{t}$

$t = 13.5 s$

so it will take 13.5 s to lift up

Part b)

Electrical energy used

$efficiency = 90$

$0.90 = \frac{Output}{Input}$

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$Input = 120050 J$

so electrical energy used in this process will be 120050 J

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