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klio [65]
3 years ago
5

Which statement best describes the liquid state of matter?

Physics
1 answer:
Talja [164]3 years ago
6 0
There are no acceptable descriptions at all on that list of choices.
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Is the Earth getting larger as more sea floor is added? explain
Natasha_Volkova [10]

The seafloor is only expanding in one area, which is the Atlantic Ocean. It's just Earth's seafloor recylcing itself.

4 0
3 years ago
A space vehicle of mass m has a speed v. At some instant, it separates into two pieces, each of mass 0.5m. One of the pieces is
Damm [24]

Answer:

W = ½ m v²

Explanation:

In this exercise we must solve it in parts, in a first part we use the conservation of the moment to find the speed after the separation

We define the system formed by the two parts of the rocket, therefore the forces during internal separation and the moment are conserved

initial instant. before separation

        p₀ = m v

final attempt. after separation

       p_{f} = m /2  0 + m /2 v_{f}

       p₀ = p_{f}

       m v = m /2 v_{f}

       v_{f}= 2 v

this is the speed of the second part of the ship

now we can use the relation of work and energy, which establishes that the work is initial to the variation of the kinetic energy of the body

     

initial energy

         K₀ = ½ m v²

final energy

        K_{f} = ½ m/2  0 + ½ m/2 v_{f}²

        K_{f} = ¼ m (2v)²

        K_{f} = m v²

         

the expression for work is

         W = ΔK = K_{f} - K₀

         W = m v² - ½ m v²

         W = ½ m v²

5 0
3 years ago
Which is the most abundant element in the Sun?
Delvig [45]
The answer is hydrogen.
5 0
3 years ago
ATTENTION! I NEED THIS DONE ASAP NO LINKS !!!<br> THIS IS A SCIENCE QUESTION
nata0808 [166]

Answer:

Science seeks to broaden our knowledge base, while engineering designs solutions and problems.

Explanation:

4 0
3 years ago
The distance between 2 successive crests of a water travelling at 3.6m per second is 0.45m. calculate the frequency of the wave​
Snezhnost [94]

Answer:

8 hz

Explanation:

Wave Frequency = \frac{velocity}{wavelength}

F=\frac{3.6}{0.45} = 8

7 0
3 years ago
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