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Hello, Can I get some help with #30 a and b, please? Don't forget to show your work. Thanks
answered
Feb 17, 2020
Mathematics
college
3
votes
95.6k
views
Which idea from the 1950s inspired the counterculture movement of the 1960s?
answered
Aug 24, 2019
History
high-school
5
votes
189k
views
What is the law of conservation of energy.
answered
Jul 18, 2019
Physics
middle-school
3
votes
7.0k
views
Calculate the atomic mass for zinc given the following data for its natural isotopes: 64Zn 63.929 amu 48.89 % 66Zn 65.926 amu 27.81 % 67Zn 66.927 amu 4.11 % 68Zn 67.925 amu 18.57 % 70Zn 69.925 amu 0.62
answered
Jun 23, 2019
Chemistry
middle-school
0
votes
54.9k
views
You walk 20 m north, then 5 meters south . What is your displacement?
answered
Apr 7, 2019
Physics
middle-school
7
votes
65.0k
views
81 is what percent of 60
answered
Mar 1, 2019
Mathematics
college
2
votes
164k
views
Nonhuman primates avoid close inbreeding by
answered
May 18, 2018
Biology
high-school
3
votes
114k
views
The social change brought about by the industrial revolution was evident in the?
answered
Feb 14, 2018
History
high-school
7
votes
216k
views
True or false the play is set in grover's corners, new hampshire, may 7, 1938. in our town act one
answered
Dec 24, 2017
History
high-school
2
votes
163k
views
a cylinder of oxygen gas is cooled from 300K to 150K by what factor does the average kinetic energy of the oxygen molecules in the cylinder decrease
answered
Sep 25, 2017
Chemistry
high-school
4
votes
111k
views
What are 2 traits of pseudoscience
answered
Jul 19, 2017
Biology
middle-school
2
votes
30.7k
views
Why is salt water important to life on earth?
answered
Apr 18, 2016
Geography
middle-school
6
votes
135k
views
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