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
Ahat [919]
3 years ago
9

What is the uses of echoes?​

Physics
1 answer:
vichka [17]3 years ago
8 0

Explanation:

Echo sounding is a type of sonar used to determine the depth of water by transmitting sound waves into water. The time interval between emission and return of a pulse is recorded, which is used to determine the depth of water along with the speed of sound in water at the time.

You might be interested in
Which of the following explains how an executive order differs from a law?
Novay_Z [31]

Answer:

Executive Orders state mandatory requirements for the Executive Branch, and have the effect of law. They are issued in relation to a law passed by Congress or based on powers granted to the President in the Constitution and must be consistent with those authorities.

Explanation:

3 0
3 years ago
What is the force required accelerate a 5.0 kg object at 3.0m/s^ 2?
NeX [460]
The equation to find force is f=ma. So, if you plug in the information that you have you'll get F=5x3 and that'll equal F=15N
6 0
3 years ago
Which of the following power plants does not use thermal energy to produce electricity?
Delvig [45]

Answer: d

Explanation:

4 0
2 years ago
An automobile with passengers has weight 19.4 kN and is moving at 108 km/h when the driver brakes to a stop. The frictional forc
mixer [17]

Answer:

12.0

Explanation:

4 0
3 years ago
A tall, cylindrical chimney falls over when its base is ruptured. Treat the chimney as a thin rod of length 53.2 m. At the insta
rusak2 [61]
From an energy balance, we can use this formula to solve for the angular speed of the chimney

ω^2 = 3g / h sin θ

Substituting the given values:
ω^2 = 3 (9.81) / 53.2 sin 34.1
ω^2 = 0.987 /s

The formula for radial acceleration is:
a = rω^2

So,
a = 53.2 (0.987) = 52.494 /s^2

The linear velocity is:
v^2 = ar
v^2 = 52.949 (53.2) = 2816.887

The tangential acceleration is:
a = r v^2
a = 53.2 (2816.887)
a = 149858.378 m/s^2

If the tangential acceleration is equal to g:
g = r^2 3g / sin θ
Solving for θ
θ = 67° 
7 0
3 years ago
Other questions:
  • What other structures is it near hypothalamus?
    10·1 answer
  • When he sees teachers encouraging other children to wait in the cafeteria until the first bell rings, Ian follows them. What typ
    9·1 answer
  • How are the types of energy in the electromagnetic spectrum defined? (Points : 3)
    6·2 answers
  • When hung from an ideal spring with spring constant k = 1.5 N/m, it bounces up and down with some frequency ω, if you stop the b
    6·1 answer
  • "it was so cold yesterday that the temperature only reached 275." which temperature scale is being used? what would be the corre
    12·2 answers
  • If there are 50 people per square kilometer in a city, and the area of the city is 1.5 × 10 square kilometers. What is the total
    8·1 answer
  • Equation for fluid density
    11·1 answer
  • 11. You are in the frozen food section of the grocery store and you notice that your hand gets cold when you place it on the gla
    7·1 answer
  • A meterstick is placed on a pivot point of 42.5cm and a 45g mass is hung at the 20cm mark. When released the meterstick remains
    9·2 answers
  • A 2kg 2 kg object is moving in along the x x -axis under a single conservative force. When the object is at position x=0 x = 0 ,
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!