Questions by Joe Jansen

Questions by Joe Jansen

The force constant for HF is 966 N m^-1. Using the harmonic oscillator model, calculate the relative population of the first excited state and the ground state at 300 K.

asked Mar 19, 2021

1 answer

1 vote

161k views

Where do ribosomes get the instructions for making protein?

asked Mar 7, 2021

1 answer

4 votes

134k views

Is this Correct? 1 + 1 = 5 - 3 x 5 + 4 - 4 + 0? Then divide by 2

asked Jan 27, 2021

1 answer

3 votes

23.8k views

Select True or False from the pull down menus for the following statements. During fusion (melting), no heat has to be added to make the phase change under constant pressure. A zero slope in the heating

asked Sep 5, 2020

1 answer

5 votes

175k views

a triangle has a base of 3cm greater than 5 times its height. what is the area of the triangle if the height is 6cm?

asked Jun 3, 2019

2 answers

3 votes

19.1k views

The Knights of Labor were a union formed in 1869 open to skilled, unskilled, immigrant, African American, and women laborers. It was one of the first organizations to lobby for which cause?

asked May 19, 2019

2 answers

5 votes

214k views

How did Salvador Dalí come up with his images? a. imagery from his nightmares b. symbolic imagery from his childhood c. symbolic imagery from his psychotherapy sessions d. imagery from the horrors of war

asked May 19, 2018

2 answers

5 votes

102k views

A hollow cylinder, open at one end, is constructed of thin sheet metal. The total external surface area of the cylinder is 192pi cm^2. The cylinder has a radius of r cm and a height of h cm. (i) express

asked Dec 26, 2017

1 answer

1 vote

157k views

Two forces that are equal in size but opposite in direction are

asked Oct 12, 2017

1 answer

4 votes

153k views

The great recession was declared to be “over” in the U.S. in June of 2009. How did this recession compare to other economic downturns?

asked Sep 22, 2017

2 answers

2 votes

14.7k views

What are two factors that contributed to the rise of the scientific revolution in Europe in the mid 1500s?

asked Mar 14, 2017

1 answer

4 votes

14.4k views

Keeping America neutral as Europe went to war in 1939 was the goal of which group? A. abolitionists B. colonialists C. isolationists D. interventionists

asked Feb 8, 2016

2 answers

0 votes

41.4k views

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