Answers by Ken Penn
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Answers by Ken Penn

Answers by Ken Penn
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Sunlight strikes a piece of crown glass at an angle of incidence of 38.0°. Calculate the difference in the angle of refraction between a yellow (580 nm) and a green (550 nm) ray within the glass. The index
answered Mar 31, 2020
1 vote
25.4k views
40 points!!The figure shows triangle KJL with its three medians. Find x if KD= 4x - 4 and DV = x + 2 A. 1 B. 4 C. 6 D. 12
answered Feb 13, 2020
2 votes
161k views
PLEASE HELP!!!!!!!!!!!!!!! Mongol conquests ranged from East Asia to Eastern Europe during the thirteenth and fourteenth centuries. This relatively short period was crucial in establishing new international
answered Nov 17, 2019
2 votes
6.8k views
What was the result of the Dawes Act?
answered Aug 25, 2019
3 votes
215k views
Jeffersonville Bank is offering it's customers a record 3.4% compound interest on new savings accounts. Mr. Kirks opens an account with $2,100. How much will his balance be after 3 years?
answered Jan 23, 2019
4 votes
216k views
What is the surface area of a sphere with a radius of 7 feet?
answered Jan 2, 2019
4 votes
141k views
Problems facing book publishers in the internet age
answered Oct 14, 2018
5 votes
222k views
What is the meaning of human life? please help, for my english essay
answered May 14, 2018
3 votes
207k views
European society during the 1400s was characterized by
answered Jan 7, 2018
1 vote
179k views
Choose all that apply. Three characteristics of hunter-gatherer societies were: people moved around a lot trash was spread out over a large area diseases spread quickly little surplus food was available
answered Sep 17, 2017
4 votes
101k views
What is 1.625 as a fraction
answered Jul 26, 2017
4 votes
214k views
Besides, what could they see but a hideous and desolate wilderness, full of wild beasts and wild men-and what multitude there might be of them they knew not...they could have little solace (meaning "peace")
answered May 8, 2017
4 votes
58.9k views
Calculate the perimeter of an equilateral triangle which has a side of 14
answered Jan 7, 2016
7 votes
118k views
What six reasons did the founding fathers give as the purpose for establishing the constitution?
answered Apr 14, 2015
4 votes
168k views
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