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miskamm [114]
3 years ago
14

A crate of 890 kg gets raised to a height of 2.1m. Calculate the crate's gravitational potential energy.​

Physics
2 answers:
Licemer1 [7]3 years ago
8 0
Gravitational potential energy = mass x height x gravity

So you would do 890 x 2.1 x gravity (which is 9.8 on earth)
mars1129 [50]3 years ago
4 0

Answer:

18,316.2

Explanation:

The formula for GPE is mgh, where

M = Mass of the object

G = Acceleration due to gravity (9.8 m/s^2 on Earth)

H = Height above ground

890 × 9.8 × 2.1 = 18,316.2

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2 years ago
Falling raindrops frequently develop electric charges. Does this create noticeable forces between the droplets? Suppose two 1.8
umka2103 [35]

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a) F=2.048\times 10^{-7}\ N

b) a=0.1138\ m.s^{-2}

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  • charge on the raindrops, q=+21\times 10^{-12}\ C
  • horizontal distance between the raindrops, r=0.0044\ m

A)

<u>From the Coulomb's Law the force between the charges is given as:</u>

F=\frac{1}{4\pi.\epsilon_0} .\frac{q_1.q_2}{r^2}

we have:

\epsilon_0=8.854\times 10^{-12}\ C^2.N^{-1}.m^{-2}

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F=2.048\times 10^{-7}\ N

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