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2 years ago

What is the uses of echoes?

Physics

1 answer:

vichka [17]2 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.

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What is the magnitude of the electric field at the dot in the figure? (figure 1)

blondinia [14]

The magnitude of the electric field at the dot is : 10⁴ v/m

<h3>What is electric field?</h3>

Electric field is a region around a charged particle or object within which a force would be exerted on other charged particles or objects.

Given that there are three equipotential lines with equal spacing,we will apply the the relationship between P.D and electric field

Determine the magnitude of the electric field at the dot

change in voltage = E .d

$100 - 0 = E \times ( 1 \times 10^{-2}\ m ) ----- ( 1 )$

From equation ( 1 )

The magnitude of electric field will be given as

$E = \dfrac{100 }{ ( 1 \times 10^{-2})\ }$

$E = 10^4\ \ \frac {v}{ m}$

Hence we can conclude that The magnitude of the electric field at the dot is : 10⁴ v/m

Learn more about electric field :

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1 year ago

A wave carries _____ from one place to another Mechanical waves carry energy through ______

gulaghasi [49]

A wave carries energy from one place to another.

mechanical waves carry energy through MEDIUM.

SO THIS IS MY ANSWER

7 0

2 years ago

Read 2 more answers

The astronomer who first worked out the mathematical description of black hole event horizons was?

vovangra [49]

Karl Schwarzschild devised the first general relativity model that would adequately describe a black hole in 1916.

What is Black Hole?

A black hole is an area of spacetime with such intense gravitational pull that nothing can escape from it, not even light or other electromagnetic waves. According to general relativity theory, a compact enough mass can bend spacetime into a black hole. The event horizon is the line beyond which there is no escape.

Black holes were once thought to be a mathematical curiosity, but theoretical research in the 1960s revealed that they were actually a general prediction of general relativity.

To know more about Black Hole refer:

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1 year ago

What was done to test if Comets are responsible for 1/2 the Earth's water?

My name is Ann [436]

✯Hello✯

↪ A satellite was crashed into a comet (on purpose of course)

↪ When it crashed a huge amount of water gushed out

↪ It was over hundreds of thousands of litres

↪ These proved that most of the water came from Comets for the world's first oceans