Questions by Jan Berktold

Questions by Jan Berktold

Determine the energy in ev of a photon when electron transit from third level to the first level energy of hydrogen atom * A) 12 ev B) O 1.2 ev C) 0.12 ev

asked Oct 28, 2023

1 answer

8 votes

82.1k views

Principal root of this equation: 2cos(x) = √(2)

asked Oct 7, 2023

1 answer

2 votes

142k views

What is the native american tribes, the east coast and the west coast contribution to history?

asked Jun 16, 2023

2 answers

8 votes

215k views

There are four Defenders on a soccer team if this represents 20% of the players on the team which equation can be used to find the total number of players on the team

asked Mar 25, 2023

1 answer

3 votes

224k views

What do you mean by cooperatives?

asked Feb 15, 2023

2 answers

2 votes

108k views

What type of em waves is fm radio? And how it is used in wireless communication?

asked Nov 11, 2022

1 answer

17 votes

34.9k views

Ancient China Write about ancient Chinese calligraphy style writing and the writing on oracle bone. Why is calligraphy highly ranked as an art form in China?

asked Nov 10, 2022

1 answer

1 vote

41.0k views

Did ancient Greece have a constitution?

asked Jun 26, 2022

1 answer

4 votes

211k views

Solve for x Simplify your answer x/7 > -6

asked May 21, 2022

2 answers

6 votes

201k views

In this figure, ST is a line. What is the value of x? BTW that says 2/3x

asked Mar 18, 2022

2 answers

2 votes

104k views

Solve for x. 2(x - 1) = x + 10 X =

asked Oct 6, 2021

2 answers

1 vote

212k views

How are regions defined?

asked Sep 19, 2021

1 answer

5 votes

56.8k views

List 3 benefits of completing this 2-week journaling routine.

asked Jul 5, 2021

2 answers

2 votes

228k views

You invested in an aggressive growth fund and expect to earn 12.72% annually over the next five years. However, due to strong growth, inflation is expected to be 6.30%. What should be your expected real

asked Feb 21, 2021

1 answer

0 votes

141k views

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