When the resultant force acting on a system is zero, the total momentum of the system...

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Answer 1

Answer: When the resultant force acting on a system is zero, the total momentum of the system remains constant. This is known as the principle of conservation of momentum. In other words, if the net external force acting on a closed system is zero, the total momentum of that system will not change over time. This principle is commonly applied in physics, particularly in scenarios involving collisions and interactions between objects.

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Brilliant***Thank you

The first scientest that proposed that all things are made up of atoms

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John Dalton I believe.

1) A sound wave with a frequency of 300 hertz is traveling through a medium at a speed of 320 meters/second. What is its wavelength? 2) A sound wave has a wavelength of 0.450 meters. If its speed in cold air is 330 meters/second, what is the wave's frequency?
a.0.890hertz
b.100hertz
c.230hertz
d.733

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1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,
λ = s / f = (320 m/s) / (300 1/s) = 1.07 m
The wavelength is approximately 1.07 m.

2. The frequency is the ratio between speed and the wavelength,
f = (330 m/s) / 0.45 m = 733.33 hertz

1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,

λ = s / f = (320 m/s) / (300 1/s) = 1.07 m

The wavelength is approximately 1.07 m.

2. The frequency is the ratio between speed and the wavelength,

f = (330 m/s) / 0.45 m = 733.33 hertz

Chọn phát biểu đúng. Trong công thức của chuyển động thẳng nhanh dần đều: A. v luôn luôn dương. B. a luôn dương.
C. a luôn cùng dấu với v. D. a luôn ngược dấu với v.

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Answer:

Explanation:

If a compasses moved close to a magnet, the compass will always point?towards the earths north pole
away from the earths south pole
along the magnets field lines
none of the above

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The answer is C. Along the magnetic field lines

A change that occurs when a solid melts or a liquid freezes is an example of a phase change.a. True
b. False

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Condensation is the change ofthe substance from liquid to solid phase. Example of this is the formation ofice. Vaporization is the change of substance from liquid to gas phase. Exampleof this is the boiling of water. Deposition is the change of a substance fromgas to solid phase. Example of this is the formation of ice on a winter day.Sublimation is the change of a substance from solid to gas phase. Example ofthis is dry ice. These are all examples of a phase change. The answer is letter A.

Answer:

True

Explanation:

Which type of force pulls objects toward one another

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Gravity ALWAYS does that, and electrostatic force does it when two objects have opposite charges.

Gravitational force, magnetic force and electric force

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If a ball with an original velocity of zero is dropped from a tall structure and it takes 7 seconds to hit the ground, what velocity does the ball have when it reaches the ground? A. 34.3 m/s B. 68.6 m/s C. 156.8 m/s D. 240.1 m/s

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An atom's tendency is to become stable. What does this mean?