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3 years ago

What are some ways scientists can study the seafloor?

2 answers:

4 0

Answer: A device records the time it takes sound waves to travel from the surface to the ocean floor and back again. Sound waves travel through water at a known speed. Once scientists know the travel time of the wave, they can calculate the distance to the ocean floor.

Explanation:

musickatia [10]3 years ago

3 0

Answer:

Sonar can be used to measure how deep the ocean is. A device records the time it takes sound waves to travel from the surface to the ocean floor and back again. Sound waves travel through water at a known speed. Once scientists know the travel time of the wave, they can calculate the distance to the ocean floor.

Explanation:

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Based on the law of conservation of energy, which statement is false?

Bess [88]

A is false, the conservation of energy states that energy can not be created or destroyed but is altered from one form to another

6 0

3 years ago

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A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 10 m from the takeoff point. you may want t

Stells [14]

Answer:

Takeoff speed of Kangaroo = 12.91 m/s

Explanation:

The distance reached by Kangaroo = 10 meter

Angle at which it jumps = 18°

The motion of Kangaroo is like a projectile, the distance traveled is the range of projectile.

Range of projectile = Time taken for the projectile to reach ground* Horizontal velocity

Time taken for the projectile to reach ground:

Time taken = Two times of the time taken for the projectile to reach maximum height

Time taken for the projectile to reach maximum height = Vertical speed / Acceleration = u sin θ/g

Time taken for the projectile to reach ground = 2 u sin θ/g

So Range of projectile = $ucos\theta*\frac{2usin\theta}{g} =\frac{u^2sin2\theta}{g}$

We have Range = 10 meter, θ = 18⁰

Substituting

$10=\frac{u^2sin(2*18)}{9.8}\\ \\ u^2= 166.73\\ \\ u=12.91 m/s$

Takeoff speed of Kangaroo = 12.91 m/s

3 0

3 years ago

Read 2 more answers

HELP.

Radda [10]

-- Mechanical waves DO require a medium in order to travel from place to place. (Sound can't travel without some material to travel through on the way.)

-- Electromagnetic waves do NOT need a medium in order to travel from place to place. (Sunlight reaches us from the Sun without anything to travel through on the way.)

6 0

3 years ago

The amount of force needed to cause an object to accelerate depends upon

Tasya [4]

Answer:

Explanation:

I have read the information

4 0

3 years ago

Acceleration is due to a force put on an objects mass.

Anastasy [175]

Yes ! You are true. Honest, and loaded with veracity. Truer words are seldom written and rarely spoken. You nailed it, mon.

Do you have a question to ask ?

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4 years ago