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Mkey [24]
3 years ago
6

Which statement best explains that sound waves are pressure waves?

Physics
2 answers:
dolphi86 [110]3 years ago
8 0
I would say A. Sound is a mechanical wave that comes from the back and forth vibration of the particles of the medium through which the sound wave is moving.
kotykmax [81]3 years ago
3 0
The best statement would be number 3. Sound waves move perpendicular to the medium particles.
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ICl has a higher boiling point than Br2. What is the best explanation for this?
Vsevolod [243]
Iodine Monochloride (ICI) is an interhalogen or compound. ICI has an intermolecular attraction which makes it more difficult to boil compare to Bromine (Br2). Brorime is among the halogens along with fluorine, chlorine, iodine and astatine. Bromine is a nonpolar substance while ICI is a polar compound.
7 0
3 years ago
The relation of mass m, angular velocity o and radius of the circular path r of an object with the centripetal force is-
k0ka [10]

Answer:

Correct option not indicated

Explanation:

There are few mistakes in the question. The angular velocity ought to have been denoted with "ω" and not "o" (as also suggested in the options).

The formula to calculate a centripetal force (<em>F)</em><em> </em>is

<em>F</em> = mv²/r

Where m is mass, v is velocity and r is radius

where

While the formula to calculate a centrifugal force (F) is

<em>F </em>= mω²r

where m is mass, ω is angular velocity and r is radius of the circular path.

<u>From the above, it can be denoted that the relationship been referred to in the question is that of a centrifugal force and not centripetal force, thus the correct option should be</u> C.

NOTE: Centripetal force is the force required to keep an object moving in a circular path/motion and acts inward towards the centre of rotation while centrifugal force is the force felt by an object in circular motion which acts outward away from the centre of rotation.

8 0
3 years ago
The four fundamental types of organic molecules are nucleic acids, proteins, lipids, and ________.
notka56 [123]
The other of the four organic molecules is carbohydrates. 
All four of them are:
Nucleic Acids (DNA and RNA stuff)
Proteins
Lipids
& Carbohydrates
4 0
3 years ago
Read 2 more answers
Boat carrying people more than its capacity is attributes of sinking why​
alisha [4.7K]
It will sink because of how much the max capacity a boat can have it will sink because it is over capacity that’s why it will sink.

Hope this helps :)
5 0
3 years ago
Read 2 more answers
ou are out stargazing with your 13.4-cm telescope. You point your telescope at an interesting formation in the sky, which you th
Alinara [238K]

Answer:

θ = 4.716 10⁻⁶ rad

Explanation:

In order for the releases to be considered separate, they must meet the Rayleigh criterion that establishes that the maximum diffraction of one star must coincide with the first minimum of the diffraction pattern of the second star.

We use the diffraction equation for a slit

            a sin θ = m λ

The minimum occurs at m = 1

             sin θ = λ / a

Since the angles in these systems are very small, we can approximate the sine to its angle in radians

             θ = λ / a

The telescope has a circular aperture whereby polar cords should be used, which introduces a constant number

           θ = 1.22 λ / a

Let's calculate

          θ = 1.22 518 10⁻⁹ / 13.4 10⁻²

          θ = 4.716 10⁻⁶ rad

8 0
3 years ago
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