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Schach [20]
3 years ago
6

According to quantum physics, measuring velocity of a tiny particle with an electromagnet

Physics
1 answer:
lidiya [134]3 years ago
4 0

Answer:

Option A.

Explanation:

In quantum physics <u>there is a law to relate the position and the momentum of the particle</u>, it says that if we know with precision where is a quantum particle, we can not know the momentum of this particle, in other words, the velocity of the particle. So, when we measure the velocity of the particle we find the correct value of the particle, but we can not determine with accuracy where is the particle. This law is known as the Heisenberg's uncertainty principle and, its expressed as follows:    

\Delta x \Delta p \geq \frac{h}{4 \pi}

<em>where Δx: is the position's uncertainty, Δp: is the momentum's uncertainty and h: is the Planck constant.</em>  

Therefore, the correct answer is A: measuring the velocity of a tiny particle with an electromagnet has no effect on the velocity of the particle. It only affects the determination of the particle's position.      

I hope it helps you!

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The Sun is approximately 1,400 million kilometers from the planet Saturn, and light from the Sun travels to Saturn at the rate o
irinina [24]

Answer:

Light takes 77 minutes to travel from the Sun to Saturn.

Explanation:

The equation for the average velocity can be used to estimate the time that light will take to travel from the Sun to Saturn. The average velocity is defined as:

v = \frac{d}{t}   (1)

Where v is the velocity, d is the covered distance and t is the time.

Equation 1 can be rewritten for t to get:

t = \frac{d}{v}

It is necessary to express the speed of light in terms of minutes:

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t = \frac{1.4x10^{9} Km}{1.8x10^{7} Km/min}

t = 77 min

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4 years ago
Differentiate between Amplitude, wavelength and frequency in a Transverse wave.
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The energy transfer in terms of work has the equation:

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To be consistent with units, let's convert them first as follows:

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P₂ = 20 lbf/in² * (1 ft/12 in)² = 5/36 lbf/ft²
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V₂ = 11 ft³/lbm

W = m(P₂V₂ - P₁V₁)
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A force of 50 N stretches a string by 4 cm,calculate the elastic constant.
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