While breaking glass with sound is an interesting trick it really takes a lot of effort vibrations diminishes do you to energy being carried away by the sound waves.
Answer: B = 1.69 T
Explanation: Given that the
Electron velocity V = 7.4 × 10^5 m/s
Force F = - 2 × 10^-13 N
Charge q = -1.602 x 10-19 C.
We are given the charge, its velocity, and the magnetic field strength and direction. We can thus use the equation F = qvB sin θ .
Since the electron is moving perpendicular to a magnetic field,
sin θ = sin 90 = 1, therefore
- 2 × 10^-13 = - 1.602×10^-19 × 7.4×10^5B
B = -2×10^-13/1.2×10^-13
B = 1.68708T
B = 1.69 T
<span> For this case we have the following number:
1,000,000
We note that the number has 7 significant figures.
To write it in scientific notation we must write the number as follows:
</span>
<span> Where,
a: first significant figure
b: Exponent that represents the rest of significant figures.
Rewriting the number we have:
</span>
<span>
Answer: 1,000,000 to scientific notation is:</span>
<span>
</span>
Answer:
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Explanation:
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