In which of these materials does sound travel most slowly air,steel,glass,water

Answers

Answer 1

Answer: Sound travels the slowest through air, and the fastest through steel. This seems counter-intuitive, since sound seems clearer through air than it does through a solid like steel, but there is reasoning behind it. Since steel is a solid, the particles within it are more closely packed than in a liquid like water or the gases in air, in which the particles are farther apart even than the water. Sound waves don't have as much distance to travel between particles in solids as they do in liquids or gases, in which the particles are farther apart. Because of this, the sound waves can travel the quickest through solids. The only reason sound travels more quickly through steel than glass is because steel is a crystalline solid, while glass is an amorphous solid. Without getting into the specifics, the difference between a crystalline and an amorphous solid is that an amorphous solid's particles are farther apart than a crystalline solid's, which is why glass doesn't keep its shape as well as steel does. Because of this, sound travels more quickly through steel.

So, to recap, sound travels through air, steel, glass, and water in the following order, with 1 being the slowest and 4 being the quickest:
1. air
2. water
3. glass
4. steel

Answer 2

Answer: The one is air.It is air because you dont feel the air and sometimes it moves slowly

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how would your weight change with time if you were on s space ship traveling away from Earth toward the moon

Answers

Well, before we discuss that, I think we have to carefully understand
and agree on something. We have to be very clear about what we
mean by 'weight' ... is it what you feel, or is it the product of

(your mass) x (the acceleration of gravity where you are).

If you're on a space ship, then any time your engine is not burning,
you feel weightless. It doesn't matter where you are, or what body
you may be near. If you're not doing a burn, and the only force on
you is the force of gravity, then you don't feel any weight at all.

But of we say that your 'weight' is the product of

(your mass) times (the acceleration of gravity where you are),

then it depends on where you are, and whether you're close to
the Earth or closer to the moon. You may not feel it, but you're
going to have weight, and it's going to change during your trip
in space.

You know that the force of gravity depends on how far you are
from the body that's attracting you.

-- As you travel from the Earth to the moon, gravity will pull you
less and less toward Earth, and more and more toward the moon.

-- Your weight will get less and less, until you reach the point
in space where the gravitational attractions are equal in both
directions. That's about 24,000 miles before you reach the
moon ... about 90% of the way there. At that point, your weight
is really zero, because the pull toward the Earth and the pull toward
the moon are equal.

-- From there, the rest of the way to the moon, your weight will
start to grow again. It begins at zero at the 'magic point', and it
grows and grows until you reach the moon's surface. When
you're there, your weight has grown to about 1/6 of what you
weigh on Earth, and it won't get any bigger. If you weigh
120 pounds on Earth, then you weigh about 19.86 pounds on
the moon ... PLUS your space suit, boots, heater/air conditioner,
oxygen tank, radiation shielding, radio, and all the other stuff that
you need to survive on the moon for a few hours.

An airplane is flying at a constant velocity through the air. What is the relationship between the magnitudes of the four forces shown in the diagram? A. L = W; F < D
B. L = W; F = D
C. L = W = F = D
D. L = W; F > D

Answers

Answer:

(B) L=W; F=D

Explanation:

Since the airplane's velocity is constant, the airplane is not accelerating in any direction. In absence of acceleration, all forces acting on the plane are balanced so that the net forces in the horizontal and the vertical directions are zero. Given the drawing, this implies that

Forward force = Drag force (F=D)

Weight = Lift (W=L)

which corresponds to option (B)

(it is not C because nothing in the text says that the vertical and horizontal components have to have same magnitude)

Final answer:

The relationship between the magnitudes of the forces is that lift force is equal to weight force, and drag force is equal to thrust force.

Explanation:

In this scenario, the airplane is flying at a constant velocity, which means that its acceleration is zero. According to Newton's first law of motion, if an object is moving with a constant velocity, the net force acting on it is zero.

Therefore, the relationship between the magnitudes of the four forces shown in the diagram is that the lift force (L) is equal to the weight force (W), and the drag force (D) is equal to the thrust force (F).

So, the correct answer is C. L = W = F = D.

Learn more about Forces here:

brainly.com/question/13191643

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A planet in our solar system is located far from the sun. Describe the size and composition of this planet.

Answers

Pluto or Neptune It's one of those

What net is required to push a sofa with a mass of 59 kilograms so that it accelerates at 9.75 meters/second^2 (assume a flat,frictionless surface.)

Answers

Newton's 2nd Law of Motion: Force = (mass) · (acceleration)

Do I need to go any further ?

I get 575.25 Newtons .

Oh ! Look at that ! Right there at the top, it says "Using Newton's Second Law". This might have suggested to you that maybe you could solve the problem by using Newton's Second Law.

Do waterfalls and rapids occur where rivers meet and flow over hard rocks ?

Answers

Waterfalls occur when there is a sudden drop. For example the land may be 40ft up, but then suddenly it drops to 10ft above sea level. Rapids occur when the water is running through a downhill slope with a bunch of rocks.

Why do the two elements silver and iron have different properties

Answers

Because the atomic number is diffrent and I belive that they also have diffrent atomic masses

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