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Montano1993 [528]
3 years ago
6

2. The Burj Khalifa tower has an elevator that can go up to 100 m/s. If the tower is 828 meters tall, how

Physics
1 answer:
kondaur [170]3 years ago
5 0

Answer: one minute

Explanation:

The Burj Khalifa elevator speed is 10 meters per second, making the elevators among the fastest in the world. The Burj Khalifa elevator time to reach the observation deck on the 124th floor is only one minute.

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Given that the mass of the Earth is 5.972 * 10^24 kg and the radius of the Earth is
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Answer:

gₓ = 6.52 m/s²

Explanation:

The value of acceleration due to gravity on the surface of earth is given as:

g = GM/R²   -------------------- equation 1

where,

g = acceleration due to gravity on surface of earth

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R = Radius of Earth

Now, for the alien planet:

gₓ = GMₓ/Rₓ²

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gₓ = acceleration due to gravity at the surface of alien planet

Mₓ = Mass of Alien Planet = 2.4 M

Rₓ = Radius of Alien Planet = 1.9 R

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using equation 1

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gₓ = (0.66)(9.81 m/s²)

<u>gₓ = 6.52 m/s²</u>

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