Which microorganisms cause most cases of foodborne illness?
1 answer:
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Answer:
C 30-40
Explanation:
Answer: I think the answer is C.
Explanation:
Answer:
- Clothes too tight can restrict someone's movement
- Clothes too baggy could possibly trip someone up, which could lead to broken bones/concussions
- Clothes could get in someone's way while they are trying to preform or do a certain task that could result in an injury.
According to the law of definite proportions the formula for table salt is NaCl always never modified or changed in any way
<h2>Width of hair is "
1.96 10⁻⁵ m"</h2>
Explanation:
- For this diffraction problem they tell us that it is equivalent to the diffraction of a single slit, which is explained by the equation
- a sin θ =± m λ
- Where the different temrs are: “a” the width of the hair, λ the wavelength, θ the angle from the center, m the order of diffraction, which is the number of bright rings (constructive diffraction)
- We can see that the diffraction angle is missing, but we can find it by trigonometry, where L is the distance of the strand of hair to the observation screen and "y" is the perpendicular distance to the first minimum of intensity
- L = 1.25 m 100 cm/1m = 125 cm
- y = 5.06 cm
- Tan θ = y/L
- Tan θ = 5.06/12
- θ = tan⁻¹ ( 0.0405)
- θ = 2.32º
- With this data we can continue analyzing the problem, they indicate that they measure the distance to the first dark strip, thus m = 1
- a = m λ / sin θ
- a = 1 633 10⁻⁹ 1.25/sin 2.3
- a = 1.96 10⁻⁵ m
- a = 0.0196 mm
- Hence, "the width of the strand of hair is 1.96 10⁻⁵ m" is correct answer
