ZuoTi.Pro
Question

N= 84, where N is the number of stories of a high-rise building. A N-story building...

N= 84, where N is the number of stories of a high-rise building.


A N-story building is going to be imploded (demolished) from the top down instead of from the usual bottom up.
Floor separation is 12.44 feet.
Steel supports for the top floor are cut by explosives at t=0.
Calculate the following:

Calculate the time for the top floor to fall 12.44 feet. Supports for the next floor are cut at the instant that the top floor touches the next-to-top floor. Assume the top-two floor then fall from rest down to the next floor, where the process continues all the way down.

Calculate the time for them all to reach the ground.

Calculate the time for a big rock to fall the total distance without any obstruction (i.e. no friction of any kind, including air friction) all the way down. ans:3

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
N= 84, where N is the number of stories of a high-rise building. A N-story building...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Problem 1: A lateral load resisting system of a 4-story building consists a K-truss and is...

    Problem 1: A lateral load resisting system of a 4-story building consists a K-truss and is shown in the figure below. Based on the ASCE 7-10, the wind load at each floor level was calculated and applied to the truss joints as shown in Figure below. 1. Determine if the truss system is determinate and Stable (support A is pin; and support B is roller) 2. Calculate the support reactions 3. Using any analysis method, calculate the forces in members...

  • (----Project Management----) Node diagram and an estimated cost The project consists of a 10-story building with...

    (----Project Management----) Node diagram and an estimated cost The project consists of a 10-story building with 100 lamps per floor. The floors are completed in ascending order, and only when the floor is completed can the next one begin. Its brigade consists of experts and electrical assistants with the following characteristics: 1) Costs: Electrician expert ($ 16 / hour) 2)Electrician expert assistant ($ 10 / hour) Production: An electrician expert with an electrician expert assistant can install: Perito installs 16...

  • Help with Data Science python notebook, Question 1 Create a function called vowel_parse() that takes a...

    Help with Data Science python notebook, Question 1 Create a function called vowel_parse() that takes a single string as input. This string is the name of the input directory. It returns a dictionary. This dictionary has keys that are the names of the individual input files. The dictionary values are the number of words in that file that have adjacent vowels ('aa', 'ae', 'oo', 'ia', etc.). Use a regular expression to find these, do not hard code every possible combination...

  • DATA Sphere 1 (small, steel) 0.980 0.87 0.83 0.90 0.81 0.82 Sphere 2 (big, plastic) 0.980...

    DATA Sphere 1 (small, steel) 0.980 0.87 0.83 0.90 0.81 0.82 Sphere 2 (big, plastic) 0.980 0.92 0.93 0.95 0.93 0.98 x (m) Measured time, trial 1,7(S) trial 2 trial 3 trial 4 trials Average time, la(s) V. (m/s) Measured range, trial 1, R (m) trial 2 trial 3 trial 4 trial 5 Average measured range, Rey (m) Height, h (m) Calculated time of fall, tall Theoretical range, Rhe Accuracy Raw X1000 0.585 0.569 0.570 0.585 0.580 0.541 0.562 0.513...

  • Please answer the following physic questions. Thank you! 1. A dog sees a flowerpot sail up...

    Please answer the following physic questions. Thank you! 1. A dog sees a flowerpot sail up and then back past a window 5.0 ft high. If the total time the pot is in sight is 1.0 seconds, find the height above the window that the pot rises. 2. An elevator ascends with an upward acceleration of 4.0 ft/s2. At the instant its upward speed is 8.0 ft/s, a loose bolt drops from the ceiling of the elevator 9.0 ft from...

  • (non calculus based physics) Question 1 An Olympic weight lifter lifts an 1800 N set of...

    (non calculus based physics) Question 1 An Olympic weight lifter lifts an 1800 N set of weights from the ground to a vertical distance of 2.20 m above his head. Assuming he moves the weights at constant speed, how much work does the weight lifter do? Question 2 A 4.5 kg trunk, initially at rest, takes 2.0 s to slide 2.8 m down a rough 25° slope. Calculate: the work performed by the force of gravity. the amount of mechanical...

  • Solve it for java Question Remember: You will need to read this assignment many times to...

    Solve it for java Question Remember: You will need to read this assignment many times to understand all the details of the you need to write. program Goal: The purp0se of this assignment is to write a Java program that models an elevator, where the elevator itself is a stack of people on the elevator and people wait in queues on each floor to get on the elevator. Scenario: A hospital in a block of old buildings has a nearly-antique...

  • Chapter 16 The Tax Is Illegal—Getting the Story Out 1. Is it the TRUTH? 2. Is...

    Chapter 16 The Tax Is Illegal—Getting the Story Out 1. Is it the TRUTH? 2. Is it FAIR to all concerned? 3. Will it build GOODWILL and better FRIENDSHIPS? 4. Will it be BENEFICIAL to all concerned? —The “Four Way Test,” written by Herbert J. Taylor, adopted as creed of Rotary International, 1943 Lunapark was an urbanized township. It used to have farms, but they were all gobbled up with housing developments. The only businesses were nonagricultural manufacturers, offices, and...

  • Using Jupyter, Please answer the following question: Please import alic.txt and cound the number of words...

    Using Jupyter, Please answer the following question: Please import alic.txt and cound the number of words and characters in it. We need to count the number of words in the txt file and find the most repeated one. In the program, first convert all words to lower case and then convert the first character to the upper case. Then we need to do the analysis. We are not interested in the following words: The, A, And, To, It alice.txt file:...

  • While reading the story, consider the culture (or sub culture) and related communication styles the story...

    While reading the story, consider the culture (or sub culture) and related communication styles the story reveals. Consider too, possibly, the values, behavioral norms, social practices, social artifacts, etc. After reading the story through the lens of this idea, please compose a full academic length (evidence-based 7 to 11 sentence long) paragraph which addresses the following prompt: What does the story reveal about the culture it portrays and/OR the communication styles the culture shares? In other words, what does the...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT