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 stuntwoman is going to attempt a jump across a canyon that is 77 m wide. The ramp on the far side of the canyon is 25 m lower
charle [14.2K]

Answer:

  She will make the jump.

Explanation:

We have equation of motion , s= ut+\frac{1}{2} at^2, s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

First we will consider horizontal motion of stunt women

   Displacement = 77 m, Initial velocity = 28 cos 15 = 27.05 m/s, acceleration = 0

Substituting

   77= 27.05t+\frac{1}{2} *0*t^2\\ \\ t=77/27.05=2.85 seconds

So she will cover 77 m in 2.85 seconds

 Now considering vertical motion, up direction as positive

    Initial velocity = 28 sin 15 = 7.25 m/s, acceleration =acceleration due to gravity = -9.8 m/s^2, time = 2.85

    Substituting

           s=7.25*2.85-\frac{1}{2}*9.8*2.85^2=20.69-39.80 =-10.11 m

  So at time 2.85 stunt women is 10.11 m below from starting position, far side is 25 m lower. So she will be at higher position.

  So she will make the jump.

6 0
3 years ago
What is static friction?​
givi [52]

Answer:

Plzzzzzzzzzzzzzzzz brainliest

Explanation:

In static friction, the frictional force resists force that is applied to an object, and the object remains at rest until the force of static friction is overcome. In kinetic friction, the frictional force resists the motion of an object. ... The frictional force itself is directed oppositely to the motion of the object.

7 0
2 years ago
What is nuclear energy
irina1246 [14]
Nuclear energy <em>is t</em><span><em>he energy released during nuclear fission or fusion.

</em>
</span>
6 0
3 years ago
Read 2 more answers
An athlete practicing for a track meet ran 400 meter in 50 seconds. What was his average speed?
sattari [20]

Speed= Distance ÷ time

Speed= 400 ÷ 50 =8 m/s

7 0
3 years ago
You drop a ball at 27 feet high. How long will it take for the ball to hit the ground?
ivolga24 [154]

Ball will hit the ground after a time of 1.296 s

Explanation:

initial velocity of ball= Vi=0

g= 9.8 m/s²

height =h= 27 ft=8.23 m

using the kinematic equation

h= Vi t + 1/2 gt²

8.23=0(t) + 1/2 (9.8)t²

t²=1.6796

t=1.296 s

6 0
3 years ago
Other questions:
  • Two ice skaters hold hands and rotate, making one revolution in 2.87 s. Their masses are 59.0 kg and 73.0 kg, and they are separ
    11·1 answer
  • The height of a helicopter above the ground is given by h = 2.80t3, where h is in meters and t is in seconds. At t = 1.55 s, the
    14·2 answers
  • Some life forms move so slowly that their movement cannot be detected by normal observation. The best way to determine any movem
    6·2 answers
  • Flooding on rivers is caused by human activity rather than natural events. Please select the best answer from the choices provid
    8·2 answers
  • How many joules of heat are absorbed to raise the temperature of 435 grams of water at 1 atm from 25°c to its boiling point?
    9·1 answer
  • Whats the temperature -15°F in degrees Celsius?
    5·2 answers
  • The position of a full moon is located
    13·2 answers
  • TIME REMISE
    10·2 answers
  • Answer this question i will mark you brainliest​
    15·1 answer
  • In the popular game "Angry Birds" (refer Figure), for the red bird to hit the green bird with their range 55.0 m, what should be
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!