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
vekshin1
2 years ago
6

Sonar is used to map the ocean floor. if an ultrasonic signal is received 3.3 s after it is emitted, how deep is the ocean floor

at that location?
Physics
1 answer:
Goryan [66]2 years ago
6 0
The speed of sound in fresh water is 1482m/s. 
It says ocean floor, so we should a little bit more accurate, and use the fact that the speed of sound in salt water (that has no bubbles) is 1560m/s. 
speed = distance / time 
Therefore Distance = speed x time = 1560 x 3.3 = 5158m 
The sonar wave is sent out by the boat, reflected off the seafloor, and then is received back at the boat on the surface. So the distance 5148m is the distance from the boat to the sea bottom and then back up to the boat again. 
So the depth of the water is half this distance Depth of water = 5148/2=2574m
You might be interested in
Lorenzo is making a prediction. “I learned that nonmetals increase in reactivity when moving from left to right. So I predict th
nadezda [96]
That prediction is not correct because Xenon is extremely stable; column 18 of the periodic table contains the noble gasses, which are stable because their outer-most energy levels are completely filled. Having the octet (8) of valence electrons means that the element no longer needs to lose or gain electrons to gain stability.

The column 17 elements are unstable because they only have one valence electron short of the stable octet configuration of the noble gasses.
6 0
3 years ago
Read 2 more answers
The 4.0 -kg head of an ax is moving at 3 m/s when it strikes a log and penetrates 0.01m into the log. What is the average force
Elina [12.6K]

Answer:

the average force the blade exerts on the log is 1791.05 N.

Explanation:

Given;

mass of the ax head, m = 4 kg

speed of the ax, v = 3 m/s

depth traveled into the log, d = 0.01 m

The time to traveled through the depth;

s = (\frac{u+v}{2} )t\\\\0.01 =  (\frac{0+3}{2} )t\\\\0.01 = 1.5t\\\\t = \frac{0.01}{1.5} \\\\t = 0.0067 \ s

The average force the blade exerts on the log;

F = ma=\frac{mv}{t} = \frac{4 \times 3}{0.0067} = 1791.05 \ N \\\\

Therefore, the average force the blade exerts on the log is 1791.05 N.

5 0
3 years ago
What is an earthquake?
mart [117]
An earthquake is when two tectonic plate merge and one snaps up suddenly, causing the plate to shake violently until it settles back into place. hope i helped :3
6 0
3 years ago
Why is pluto not a planet?
mihalych1998 [28]
Pluto revolves around a star instead of our SUN. So, it's an "Exo-planet" rather than a Planet. It has declared in 2006 by the scientists.

Hope this helps!
3 0
3 years ago
Read 2 more answers
Find the velocity in m/s of a swimmer who swims 110m toward the shore in 72s
ruslelena [56]
S=Vt
110=V(72)
110/72=V
V=1.527m/s
4 0
2 years ago
Other questions:
  • Radiation is energy that is (5 points) not transferred at all transferred by direct contact of two objects transferred by moving
    8·1 answer
  • Write an equation that expresses the following relationship. u varies jointly with p and d and inversely with w In your equation
    5·1 answer
  • Which layer contains solid rock and magma
    8·1 answer
  • A Honda Civic travels in a straight line along a road. The car’s distance x from a stop sign is given as a function of time t by
    7·1 answer
  • At the particle level, the weakest of the fundamental forces is:
    9·2 answers
  • The driver of a car moving at 90.0 km/h presses down on the brake as the car enters a circular curve of radius 195.0 m. If the s
    6·1 answer
  • A force in the + x-direction with magnitude F(x) = 18.0N -(0.530 N/m)x is applied to a 6.00-kg box that is sitting on the horizo
    8·1 answer
  • Mike is complaining that he did 150 j of work when moving a couch that has a mass of 30 kg a distance of 15 m. how much force di
    8·2 answers
  • Why is the earth Round
    12·2 answers
  • A disk-shaped space station 125 m in diameter spins at a constant angular velocity. If the acceleration of a point on the rim of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!