Burj+Khalifa,+V+Qie

=** __BURJ KHALIFA__ **= ==**Burj Khalifa, or “Khalifa Tower,” is a skyscraper located in Dubai, United Arab Emirates. Construction started in March 2004 and ended in January 2010; the total building cost was about $1.5 billion. It is currently the tallest manmade structure in the world at 2,719.82 ft. This building consists of 163 floors above ground, 57 elevators, and 3,000 parking places. It is mainly used for commercial office space but also accommodates many restaurants, parking, hotels, residences, and a private club on the top floor. Because of its size, the building's A/C system collects condensation water that equals to 20 Olympic-sized swimming pools per year; in turn, this water is used for landscaping.**==

** __Word Problems__ **
===**1) The designer of the building, Adrian D. Smith, wants to check to see if everything is working smoothly on the Burj Khalifa. After checking the entire building for any problems, and finding none whatsoever, he finally takes one of the 57 elevators up to the top floor. While looking down at the ground from the top floor, at 2,719.82 ft, Smith accidentally drops his wallet. How long will it take for his wallet to reach the ground?**===

===**2) Johnny and his son Andrew are on vacation in Dubai, United Arab Emirates. Because of its popularity, Johnny decides to take Andrew to the Burj Khalifa, the tallest building in the world. Andrew was amazed at the height of the building! He wondered**=== ===**if he could send brand new toy rocket to the top of the building, which is 2,719.82 ft. up in the air. He set up his rocket and proceeds to launch it to the top floor. If Andrew launched the rocket upwards with an initial velocity of 816****ft/sec, how long will it take for the rocket to reach the top of the building?**===