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3 years ago

Which of the following is an accurate description of the amplitude of a wave?

Physics

2 answers:

igomit [66]3 years ago

8 0

Answer:

A: the full height of a wave

Explanation:

Amplitude of wave is defined as the maximum displacement of wave from it's mean position.

So here when we draw the wave shape then the maximum displacement of wave will be the height of wave which we can draw here as amplitude

mean position is defined as the middle of the wave at which we can say that its net force will be zero and all particles will be at mid point at that.

so we can find the distance of mid point and maximum distance from that which is known as amplitude

nekit [7.7K]3 years ago

3 0

The amplitude of the wave is the 'full height of the wave.' Amplitude is measured in m (meters) and is measured over the change of a single period.

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Vector A has a magnitude of 30 units. Vector B is perpendicular to vector Aand has a magnitude of 40 units. What would the magni

Fudgin [204]

Answer:

$|\vec A + \vec B| = 50 units$

Explanation:

As we know that magnitude of two vectors is given as

$|\vec A + \vec B| = \sqrt{A^2 + B^2 + 2AB cos\theta}$

here we know that

A = magnitude of vector A

B = magnitude of vector B

$\theta$ = angle between two vectors

so here we know that

A = 30 units

B = 40 units

angle = 90 degree

so we have

$|\vec A + \vec B| = \sqrt{30^2 + 40^2 + 2(30)(40)cos90}$

$|\vec A + \vec B| = \sqrt{30^2 + 40^2}$

$|\vec A + \vec B| = 50 units$

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3 years ago

3. Which planet, other than Earth, is confirmed to have water on it?

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Mars.

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2 years ago

Jane is sliding down a slide. What kind of motion is she demonstrating?

Over [174]

When Jane is sliding down a slide, she is demonstrating translational motion.

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Doubling the frequency of a wave source doubles the speed of the wave assuing that wavelength remains the same? True or false? W

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Answer:true,because velocity is directly proportional to speed or velocity

Explanation:

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A cup of tea at room temperature of 24°C is heated until it has twice the internal energy. Calculate the final temperature of th

elena-s [515]

The final temperature of the tea cup is 100°C.

<h3>What is internal energy?</h3>

The Internal energy is the energy of a substance due to to the constant random motion of its particles.

The symbol for internal energy of a substance is U and it is measured in Joules.

ΔU = q + W

q is the heat, q = mcΔT

W is the mechanical work.

In conclusion, the final temperature of the tea cup at room temperature of 24 °C which is heated until it has twice the internal energy is 100°C.

Learn more about internal energy at: brainly.com/question/24028630

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2 years ago