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MArishka [77]
3 years ago
14

(a) Assume an electron in the ground state of the hydrogen atom moves at an average speed of 5.00 × 106 m/s. If the speed is kno

wn to an uncertainty of 1 percent, what is the minimum uncertainty in its position
Physics
1 answer:
Sonbull [250]3 years ago
4 0

Answer:

The minimum uncertainty in its position is 1.1587 nm

Explanation:

Given;

average speed of electron, v = 5.00 × 10⁶ m/s

percentage of speed uncertainty = 1%

Δv = 0.01( 5.00 × 10⁶ m/s) = 5.00 × 10⁴ m/s

Applying Heisenberg's uncertainty principle, to determine the uncertainty in its position.

ΔxΔP ≥ h/4π

Δx(mΔv)  ≥ h/4π

Δx = h/4πmΔv

where;

Δx is uncertainty in its position

h is Planck's constant

m is mass of electron

Δx ≥ \frac{6.626 *10^{-34}}{4\pi *9.1*10^{-31}*5*10^4} = 1.1587*10^{-9} \ m

Δx ≥ 1.1587 nm

Therefore, the minimum uncertainty in its position is 1.1587 nm

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Three sticks are arranged to form a right triangle. If the lengths of the three sticks are 0.47 m, 0.62 m and 0.78 m, what are t
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The angles in the triangle are 91 degrees, 53 degrees and 36 degrees respectively.

<h3>What is the cosine rule?</h3>

From the cosine rule we know that;

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Learn more about triangle:brainly.com/question/2773823

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