# Physics

Superman is a character from the DC Comics universe with superhuman abilities. One day in the city of Metropolis you look to the skies only to see Superman passing directly over your head as he races to save Lois Lane from some imminent threat. Not in too much of a rush, Superman is cruising along a ta comfortable mach 4, 1 km above the ground. He yells out directions but because sound travels much slower than light, how far away is he when you hear him(ie. the actual distance from you on the ground to him in the air)? Speed of Sound = 340m/s.

1. 👍 0
2. 👎 0
3. 👁 156
1. c = speed of sound
4 c = speed of superman

t = time for signal to reach ground = 1000/c
t is also how long he flew beyond the yell
so he flew x = 4 c (1000/c) = 4000
hypotenuse = sqrt (1000^2 + 4000^2)
=sqrt (10^6 + 16* 10^6)
= 1000 sqrt 17 meters
or
sqrt 17 kilometers

note: since the super speed is given in mach, the actual speed is not needed.

1. 👍 0
2. 👎 0
2. Thanks you so much!
I just saw that there was a part two in which it says, "what does it sound like when you hear his sentence?" He said, "Hey! Finish your test!"
I don't know how to answer this...?

1. 👍 0
2. 👎 0

## Similar Questions

1. ### English

Which best describes society's view of boys’ and girls’ abilities during the period in which Elizabeth Cady Stanton lived? A. The abilities of boys are equal to those of girls. B.The abilities of boys are lesser than those of

2. ### physic

Superman must stop a 120km/h train in 150m to keep it from hitting a stalled car on the tracks.If the train's mass is 3.6x10^5kg,how much force must he exert?Compare to the weight of the train (give as%).How much force does the

3. ### language arts

On which character traits does the narrator of “the tell-tale heart” pride himself? a. his abilities to lie and steal b. his sneakiness and his fear c. his wit and his confidence d. his intelligence and his patience i think

4. ### ss

What belief did Zoroaster teach? A. He taught that the universe is dominated by good, not evil. B. He taught that the universe is governed by natural laws, not gods and goddesses. C. He taught that the universe is locked in an

1. ### english

Which sentence is the most grammatically correct and clear version? Superman announced that he could leap over buildings in a single bound, which was a very risky thing to do. It was risky for Superman to announce that he could

2. ### English

Match the vocabulary words with the appropriate definitions. A.allusion B.flat character C.rhyme scheme D.stock character E.round character unchanging character-B reference to other works or events-A complex or main character-E a

3. ### English

Martin Luther King Jr. often spoke of a day in the future when he hoped that his children would be judged not by their skin color but instead by their character. Write a narrative essay about a moment in your life when you were

4. ### physics

As a science project, you drop a watermelon off the top of the Empire State Building, 320 m above the sidewalk. It so happens that Superman flies by at the instant you release the watermelon. Superman is headed straight down with

1. ### English

Why is “The Prodigal Son” considered an example of allegory? Select all that apply. 1. The plotline has a clear conflict and resolution. 2. The characters symbolize ideas about human life. 3. It is a story with characters who

2. ### English

Which would be most useful in writing a character analysis? A. a list of all the characters in the story B. a conversation between the character and others C. a map of the character’s hometown D. a description of the place where

3. ### Social Studies

What belief did Zoroaster teach? A. He taught that the universe is dominated by good, not evil. B. He taught that the universe is governed by natural laws, not gods and goddesses. C. He taught that the universe is locked in an

4. ### English

1. A narrator who is also a character in the story is? a. first person b. second person** c. third person limited d. third person omniscient 2. Which of the following details would be considered part of the setting? a. the