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Elza [17]
2 years ago
8

.・✫・゜・。.

Physics
2 answers:
Vaselesa [24]2 years ago
8 0

Answer:

• External unbalanced forces help to overcome the inertia of the object.

• The dust particles that were previously at rest on the carpet remain at rest due to their inertia and hence, get separated from the carpet. This is why when a carpet is beaten with a stick, dust comes out from it.

Mrac [35]2 years ago
5 0

Answer:

because dust particles wants to stay in rest but when we hit or beat carpet it comes in motion and due to unbalanced inertia it's fall down..

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The electric force between two charged objects is influenced by
tresset_1 [31]
<span> attraction between the relative abundance of electrons in one object and protons in the other   


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3 years ago
Gibbons, small Asian apes, move by brachiation, swinging below a handhold to move forward to the next handhold. A 9.0 kg gibbon
aleksklad [387]

Answer:

230 N

Explanation:

At the lowest position , the velocity is maximum hence at this point, maximum support force  T  is given by the branch.

The swinging motion of the ape on a vertical circular path , will require

a centripetal force  in upward direction . This is related to weight as follows

T - mg = m v² / R

R is radius of circular path . m is mass of the ape and velocity is 3.2 m/s

T =  mg -  mv² / R

T = 8.5 X 9.8 + 8.5 X 3.2² / .60  { R is length of hand of ape. }

T = 83.3 + 145.06

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5 0
3 years ago
Summarize: Based on what you have learned, how will the sound that the observer hears
Reil [10]

Answer: The sound will change due to changes in frequency and the wavelength of the airplane.

Explanation: Let assume that the observer is at a stationary position. The wavelength of the sound from the airplane reduces and the frequency increases as the plane is moving toward the observer. As the airplane passes by, that is, moving away from the observer, the frequency starts to reduce while the wavelength of the sound starts to increase.

The sound that the observer hears will change base on the illustration above.

3 0
3 years ago
In a concave mirror parallel rays falling on it convergs at
ella [17]

Answer:

1) In a concave mirror parallel rays falling on it converges at F and 2F.

Explanation:

Spherical mirrors can be used for magnification of images. There are basically two types of spherical mirrors and they are converging mirror and diverging mirrors. The converging mirrors are also termed as concave mirrors and its basic work is to converge or combine light rays coming from a larger distance to a single point. Mostly the light beams falling parallel to the principle axis of the concave mirror will be acting as parallel rays. And when these parallel rays fall on the mirror, the converging point can be the focal point of the mirror.

Thus the location of converging point in concave mirrors will be based on the position or distance of object from the mirror. If the object distance is very far from the twice the focal length distance of mirror, then the converging point will be the focal point or F. And if the object is placed slightly greater than twice the distance of focal point, then the image will be obtained at 2F. But the parallel beams will be converging at F and 2F.

5 0
3 years ago
A system that can be affected by the outside environment, by an exchange of matter or energy is ______.
larisa86 [58]

\sf{Answer:}

A system that can be affected by the outside environment, by an exchange of matter or energy is an open physical system .

4 0
2 years ago
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