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Evgesh-ka [11]
2 years ago
11

Https://phet.colorado.edu/sims/html/balloons-and-static-electricity/latest/balloons-and-static-electricity_en.html

Physics
1 answer:
Katarina [22]2 years ago
5 0

Answer:

there is not pic

Explanation:

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If trees have leaves, then birds nests will increase. What the independent variable and the dependent variable?
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The independent should be the trees/leaves.

The dependent variable should be the birds nests.

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san4es73 [151]
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Can you give me the definition of sound wave
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Which of the following forms of energy must an object have if it is moving at a constant velocity?
lbvjy [14]

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3 years ago
Find the energy in Joules required to lift a 55.0 Megagram object a distance of 500 cm.
fredd [130]

Energy to lift something =

               (mass of the object) x (gravity) x (height of the lift).

BUT ...

This simple formula only works if you use the right units.

Mass . . . kilograms
Gravity . . . meters/second²
Height . . . meters

For this question . . .

Mass = 55 megagram = 5.5 x 10⁷ grams = 5.5 x 10⁴ kilograms

Gravity (on Earth) = 9.8 m/second²

Height = 500 cm  =  5.0 meters

So we have ...

Energy = (5.5 x 10⁴ kilogram) x (9.8 m/s²) x (5 m)

            =  2,696,925 joules .

That's quite a large amount of energy ... equivalent to
straining at the rate of 1 horsepower for almost exactly an
hour, or burning a 100 watt light bulb for about 7-1/2 hours.

The reason is the large mass that's being lifted.
On Earth, that much mass weighs about 61 tons.

7 0
2 years ago
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