Which of these features is NOT found on the ocean floor?A. mountain
B. volcano
C. river
D. plain

Answers

Answer 1

Answer:

The one feature that is not found on the ocean floor is a river. A river and an ocean would not be found together, even on the ocean floor.

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Name the device which measure distance travelled by the body

Answers

Answer:

here is the answer

Explanation:

an odometer or a milometer

When particles move past each other with ease it is called _____.a. effusion
b. fluidity
c. density
d. compressibility

Answers

fluidity is the answer

B. its fluidity, particles of a gas move freely

A charge of 0.2 C experiences an electric force of 5 N. What is the strength of the electric field in N/C?

Answers

YOUR ANSWER SHOULD BE AS FOLLOWS

25N/C

$\vec{E}=\frac{\vec{F}}{q}\n \n \vec{E}=(5 \ N)/(0.2 \ C)=25 \ N/C$

What is the magnitude of the electric field at a point 0.0075 m from a 0.0035 C charge?

Answers

In an electric field force,F= q₁q₂/4πε₀ r² (coulomb's law) as we know,F=qE E=F/q
E=q/4πε₀ r²
here,r= 0.0075 m
q= 0.0035 C
1/4πε₀ = 9×10⁹
E= 9×10⁹× 0.0035/(0.0075)²
=5.6 ×10¹¹ N/C

Answer:

5.6x1011 N

Explanation:

I just got the wrong answer so here's the right one

What type of medium makes sound travel the fastest and Explain WHY.

Answers

Answer:

V solids > V liquids > V gas

Explanation:

Speed of sounds depends of the type of material in which it travels, this phenomenon may be determined by the following formula:

V = √(B/ρ)

Where:

V= speed of sound

B= represent the medium hardness, this coefficient is expressed in Pascal units. The bigger the number, the hardest the material and sound travels faster. This is because in hardest material, particles are closer together so sound travels faster

ρ= density, for this case, for a high density value, sound travels slower

Both factors (B and P) should be considering when calculating the speed of sound

For example, for iron, B has a high value so sound travels faster, but also has a high density (this would make sound travels slower), but for this type of materials, B is much more bigger that P, hence V will be always a high number

Actually : V solids > V liquids > V gas

ρ is also important in certain circumstances, for example, in a gas, when temperature rises, P decreases, for which speed is faster in hot air

Solid medium helps sound waves to travel the fastest since the molecules inside a solid are closer to one another, allowing better transmission.

Explanation:

Talking about the motion of sound waves through the three phases of mediums (solid, liquid and gas), sound waves chose to be the fastest while travelling through the solid media.

Because in solids, the molecules are stacked closely to one another, allowing the transmission of sound waves faster as compared to the liquids or gases. In fact in air, the sound waves find clumsy to travel.

Sound waves travel about 17 times faster in steel than through air. Although there are always some exceptions yet, most of the solids provide better transmission of sound waves as compared to other mediums.

Do electromagnetic waves travel through a medium