7. What energy level must most hydrogen electrons start on to show Balmer absorption lines? What spectral class has the strongest Balmer lines? What Temperature does this correspond to? Energy Level Spectral Class Temperature 8. Why do the hottest stars show weak Balmer lines? Why do the coolest stars show weak Balmer lines?

Q: If you multiplied 4574 m by 56 m, how many significant figures should you report in your answer?

A: To determine Significant Figures

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A: The geometrical shape has the least surface area for a given volume is sphere.

Q: What is the chemical formula for sulfur dioxide

A: To Determine Chemical Formula of Sulfur Dioxide

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A: Calculus is a branch of Mathematics which involves the study of rate of change.Calculus is helpful…

Q: Can you solve this problem and show all the steps it took to solve it with an explanation??

A: Mass of ball (m) = 2.1 kg Initial velocity of the ball (v) = 13.6 ms-1 towards right Applied force =…

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A:

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A:

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A: What exactly do you mean when you say "unit"?

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A: At stage 1: PE = 998791 KE = Total mechanical energy - PE  KE = 1209 J KE = 12mv2 = 1209 m=1074.67…

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A: Given  Tension = 2224N Radius of the swing = length = 1.5 m Mass of the object = m = 2 kg

Q: n your point of view , what is the importance of gathered antropometric data? Justify your answer .

A: Anthropometric statistics  are statistics on human body dimension and shape and are the base using…

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A: Scale bar is defined as 1.7 cm  long scale = 12 um 1 cm long scale = 121.7 cm 1 cm long scale = 7.06…

Q: please solve this in grade 12 trig and not engineering notation/terminology

A:

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A: The 'k' in the given expression is a constant of proportionality known as the spring constant. The…

Q: The art in scientific thinking—whether in physics, economics, or engineering—is

A: The art in scientific thinking—whether in physics, economics, or engineering—iswe need to fill it up

Q: Can you please describe this problem solution in more detail - thanks!!

A: Given,  M = 3 î + 4 ĵ – 4 k^ N = î − 4 ĵ −  k^

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A: The given values are listed below. v0=38 m/sh0=70 mhf=35 m

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Q: How would I round it for scientific notation?

A:

Q: Calculate the volume of a box in cubic meters, if the sides are: 48 cm, 40 cm, and 25 cm. Your…

A: V = l×b×h

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A:

Q: E1.A horizontally directed force of 25.0 N is used to pull a box a distance of 1.5 m across a…

A: Dear Student,   As per our company policy, I am allowed to answer only first 3 subparts. So, kindly…

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A: The least count of a measuring instrument is the smallest and accurate value in the measured…

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A:

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A:

Q: What is the volume of an aluminum statue with a mass of 500 grams? (Density of aluminum = 2.7 g/cc)

A:

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A:

Q: Is the only standard unit in the metric system that has a prefix. what does this prefix means?.

A: Yes. A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple…

Q: What is the height in meters of a 5 foot 6.0 inch tall person? m

A: given that,h=5 foot 6 inchconvert h in meters