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irina1246 [14]
3 years ago
8

PLEASE HELP IT'S DUE IN LIKE 2 MINUTES

Physics
1 answer:
antoniya [11.8K]3 years ago
4 0

Answer:

1kg

Explanation:

this box is the smallest and weighs the least. Hope this helps :]

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A 1800kg car has a velocity of 30 m/s to the east what is the momentum of the car <br> p=m(v)
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Answer:

54000 kg*m/s

Explanation:

1800*30= 54000

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In which direction does a bag at rest move when a force of 20 newtons is applied from the right?
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in the direction of the applied force

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An example of a household appliance with a low and high power rating​
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Explanation:

There are countless household appliances in every single house. One appliance with a low power rating would be a ceiling fan. On average ceiling fans consume roughly 60w and are found in the majority of houses. On the other side of the spectrum, we have a high power-rating appliance such as a microwave. Microwaves use anywhere between 1000w to 1800w of power in order to function correctly. This is very large power consumption and one of the highest power ratings found for appliances in a household.

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An old light bulb draws only 54.3 W, rather than its original 60.0 W, due to evaporative thinning of its filament. By what facto
Lemur [1.5K]

Answer:

The factor of the diameter is 0.95.

Explanation:

Given that,

Power of old light bulb = 54.3 W

Power = 60 W

We know that,

The resistance is inversely proportional to the diameter.

R\propto\dfrac{1}{D}

The power is inversely proportional to the resistance.

P\propto\dfrac{1}{R}

P\propto D^2

We need to calculate the factor of the diameter of the filament reduced

Using relation of power and diameter

\dfrac{P_{i}}{P_{f}}=\dfrac{D_{i}^2}{D_{f}^2}

Put the value into the formula

\dfrac{D_{i}^2}{D_{f}^2}=\dfrac{54.3}{60}

\dfrac{D_{i}}{D_{f}}=0.95

D_{i}=0.95 D_{f}

Hence, The factor of the diameter is 0.95.

7 0
3 years ago
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