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In a young's double-slit experiment, the angle that locates the second dark fringe on either side of the central bright fringe is 6.5 degrees. find the ratio d/λ of the slit separation d to the wavelength
answered
Jan 31, 2020
Physics
high-school
5
votes
14.9k
views
Which two animals us echolocation
answered
Dec 29, 2019
Physics
middle-school
1
vote
80.8k
views
Which English Monarch sponsored exploration of the new world
answered
Oct 2, 2019
History
middle-school
2
votes
212k
views
Correct the verb tense error in this sentence. mr. vaughn will retire last year.
answered
Jun 28, 2019
English
middle-school
6
votes
7.5k
views
The treaties signed at the washington conference and the kellogg-briand pact were efforts to
answered
Jan 13, 2019
History
high-school
4
votes
9.5k
views
Which of the following describes a similarity between affranchis and French aristocrats in Saint-Domingue? A. Both groups were able to own land and African slaves. B. Both groups supported rebelling slaves
answered
Dec 13, 2018
History
high-school
7
votes
227k
views
Kenya exchanges $150 for British pounds(£). Suppose the conversion rate is £1 = $1.60. How many pounds should she receive?
answered
Oct 1, 2018
Mathematics
high-school
0
votes
61.8k
views
Choose the answer. An operetta is a grand musical play in which all dialogue is sung. TRUE OR FALSE? (30 POINTS)
answered
May 12, 2018
Business
middle-school
7
votes
145k
views
A grid that organizes data is a
answered
Mar 4, 2018
Computers and Technology
middle-school
6
votes
130k
views
The number of deaths from the plague resulted in _____ in Europe. a) the outbreak of the Hundred Years' War b) labor shortages c) increased economic productivity d) increased trade
answered
Aug 10, 2017
History
high-school
1
vote
31.3k
views
The ratio of sues age to her fathers age is 2:7 in three years their ages will total 60, how old is sue and her dad right now
answered
Jun 4, 2017
Mathematics
high-school
3
votes
178k
views
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