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Lisa [10]
2 years ago
11

What is the potential energy of a 2.3g penny that is held at the top of the cn tower (553m)?

Physics
1 answer:
SpyIntel [72]2 years ago
6 0

Answer:

12.46 joules

Explanation:

The formula of potential energy is:

\displaystyle{E_p = mgh}

where m is mass, g is gravitational force (9.8 m/s^2) and h is height.

  • Mass is given to be 2.3 grams.
  • Gravitational Force is defined as 9.8 m/s^2.
  • Height is given as 553 meters.

However, mass must be in kilograms (kg) unit so we will be converting the gram to kilogram:

We know that a gram equals to 0.001 kg so 2.3 grams will equal to 2.3 * 0.001 = 0.0023 kg.

Therefore, substitute known information in the formula of potential energy:

\displaystyle{E_p = 0.0023 \times 9.8 \times 553}\\\\\displaystyle{E_p = 12.46 \ \, \sf{Joules}}

Therefore, the potential energy is 12.46 joules.

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