The Burj Khalifa in Dubai is the world's tallest building. The structure is 828 m (2716.5 ft) and has more than 160 stories. A t
ourist is obviously using the elevator to reach their hotel room and after a long ride finally arrives at the correct floor, where the tourist has − 1.97 × 10 5 J of potential energy. If the 89.5 kg tourist has zero potential energy at the top of the building, how high ( h ) is the hotel room from the ground? The acceleration due to gravity is 9.81 m / s 2 .
1 answer:
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</em><em>then this hot water comes out through a outlet ... :)</em>
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The volume of a cube is given by:
where L is the measure of each side (which corresponds to its width, since all sides of a cube are equal).
Plugging the data of the problem, L=32.1 cm, inside the equation, we find the volume:
Answer:
Explanation:
Initial angular speed of the player is given as
here we know that
now we know that
now its speed comes to zero in 0.2 s
so angular acceleration is given as