1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Montano1993 [528]
3 years ago
11

how long will it take a sonar pulse that travels at the speed of 1,500m/s to return from a sunken ship that is at a depth of 3,7

50m?
Physics
2 answers:
Sergio [31]3 years ago
6 0

Answer: It will 5 seconds fir the wave to return

Explanation: Speed is expressed as v=d/t if we derive this to find t:

t=d/v =3750m/ 1500m/s = 2.5 s note it the time required for the wave to reach the sunken ship. So multiply it by 2 to to have the final time to reach back on the source which takes 5 s.

Alexus [3.1K]3 years ago
4 0

Answer:

Correct answer:   t = 5 seconds

Explanation:

Given: sonar pulse velocity v = 1,500 m/s and distance from sunken ship

d = 3,750 m

The sonar pulse must go twice the distance to the ship

2 d = v · t  =>  t = 2 d / v = 2 · 3,750 / 1,500 = 7,500 / 1,500 = 5 seconds

God is with you!!!

You might be interested in
A hot air balloon is traveling vertically upward at a constant speed of 4.5 m/s. When it is 28 m above the ground, a package is
ella [17]

Answer:

1.97 seconds

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 9.8 m/s²

s=ut+\frac{1}{2}at^2\\\Rightarrow 21=4.5t+\frac{1}{2}\times -9.8\times t^2\\\Rightarrow 21=-4.5t-4.9t^2\\\Rightarrow 4.9t^2+4.5t-28=0\\\Rightarrow 49t^2+45t-280=0

Solving the above equation we get

t=\frac{-45+\sqrt{45^2-4\cdot \:49\left(-280\right)}}{2\cdot \:49}, \frac{-45-\sqrt{45^2-4\cdot \:49\left(-280\right)}}{2\cdot \:49}\\\Rightarrow t=1.97, -2.89

So, the time the package was in the air is 1.97 seconds

3 0
3 years ago
When air cools, it holds _____ water than when it is warmer.
Blizzard [7]
It holds A. Less water than when it is warmer.
6 0
3 years ago
Read 2 more answers
How can you justify that force is transferred to lift and throw soil using shovel?<br>​
Natali [406]

Forces are needed to lift, turn, move, open, close, push, pull, and so on. When you throw a ball, you are using force to make the ball move through the air. More than one force can act on an object at the same time.

4 0
2 years ago
Name three ways that being obese puts a strain on your heart &amp; can lead to serious health problems.
Wittaler [7]

Answer:

Obesity changes in the structure and function of the heart. It increases your risk of heart disease. The more you weigh, the more blood you have flowing through your body. The heart has to work harder to pump the extra blood.

Explanation:

3 0
2 years ago
Read 2 more answers
How many planets are there?
beks73 [17]
Hi there!

Assuming you're asking about the solar system, there are nine planets. But, if you're wanting to know about the universe, there are trillions and trillions of planets (most of which we haven't yet discovered). 

Hope this helps!
5 0
3 years ago
Read 2 more answers
Other questions:
  • The scientific method is
    9·2 answers
  • If a star is moving away from you at a constant speed, how do the wavelengths of the absorption lines change as the star gets fa
    6·1 answer
  • A 20 kg box on a horizontal frictionless surface is moving to the right at a speed of 4.0 m/s. The box hits and remains attached
    11·1 answer
  • Which two conditions must exist in order for radiation to occur?
    13·1 answer
  • What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron
    5·2 answers
  • What does it depend on
    11·1 answer
  • Which statement describes what most likely occurs when a compass is placed next to a simple circuit made from a battery, a light
    8·2 answers
  • What is de Broglie's hypothesis ? Make sure to be specific (qualitative and quantitative)
    6·1 answer
  • PLEASE help its timed..
    5·1 answer
  • A train slows down as it rounds a sharp horizontal turn, going from 88.0 km/h to 52.0 km/h in the 18.0 s that it takes to round
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!