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lions [1.4K]
4 years ago
8

Multiple Choice: A small amplitude transverse wave is travelling on a string. The frequency of the wave is suddenly doubled. Whi

ch one of the following is a true statement?
a) The period of the wave doubles
b) The wavelength doubles
c) The speed of the wave doubles
d) The wavelength is cut in half
e) The speed of the wave is cut in half
Physics
1 answer:
kakasveta [241]4 years ago
7 0
The wavelength of the string is cut in half. The answer is D. The higher the frequency the shorter the wavelength. They are inversely proportional. 
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For each of the following decays or reactions, name at least. one conservation law that prevents it from occurring.(c) p → π⁺ +
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(c)p→π⁺₊π⁺₊π

Baryon number is +1 on the left side of the equation, 0 on the

right side. Baryon number is not conserved.

<h3>How do you determine whether a baryon number is conserved?</h3>

  • According to the law of conservation of baryon number, the sum of the baryon numbers of all incoming particles equals the sum of the baryon numbers of all particles produced by the reaction. Energy, and so on, are conserved even if the incoming proton has sufficient energy and charge.
<h3>What is Baryon Number</h3>
  • In particle physics, the baryon number denotes which particles are baryons and which particles are not. Each baryon has a baryon number of 1, and each antibaryon has a baryon number of -1. Other non-baryonic particles have a baryon number of 0. Since there are exotic hadrons like pentaquarks and tetraquarks, there is a general definition of baryon number as:
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  • wheren_{q} represents the number of quarks and nq represents the number of antiquarks.

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2 years ago
Which of the following is a complex machine? 1) piano 2) bottle opener 3) shoehorn 4) doorknob
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1. piano. that is the answer is my mind
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Where do estuaries form?
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Answer:

An estuary is the area where a river meets the sea or ocean, where fresh water from the river meets salt water from the sea.

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A conducting rod is moving through a magnetic field, as in the drawing. The magnetic field strength is 0.65 T, and the speed of
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Explanation:

The given data is as follows.

 Magnetic field strength (B) = 0.65 T

 Speed (v) = 2.3 m/s

 Induced emf (E) = ?

Formula for emf induced at the ends of the rod of length L which is moving with a speed of v is as follows.

                              E = BvL

Putting the given values into the formula as follows.

          E_{1} = BvL

                      = 0.65 T \times 2.3 m/s \times L

                      = 1.495 L .............. (1)

When magnetic field is changed to B_{2} = 0.48 T

Now, we assume that the speed be v_{2} to get the emf E_{2} = E_{1}.

Then,    0.48 T \times v_{2} \times L = 0.65 T \times 2.3 m/s \times L

                  v_{2} = 3.11 m/s

Therefore, we can conclude that the speed v of the rod be adjusted to reestablish the emf induced between the ends of the rod at its initial value is 3.11 m/s.

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3 years ago
What is the amount of charge a capacitor can store per volt of potential difference?
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The amount of charge a capacitor can store per volt of potential difference is called the capacitance of the capacitor.

<h3>What is the capacitance?</h3>

The capacitance has to do with the amount of charge that is stored by a capacitor. We know that a capacitor is a device that can be used to store electric charges. We have in it, two capacitors separated by a dielectric material.

Hence, the amount of charge a capacitor can store per volt of potential difference is called the capacitance of the capacitor.

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