• ### If 3.6 L of nitrogen are cooled from 75oC to -15oC, what is the new volume?

Best answer: PV = nRT - assume all is constant except volume and temperature V1/T1 = V2/T2 - remember to use kelvin (C + 273) 3.6/348 = V2/258 V2 (in liters) = 2.67
Best answer: PV = nRT - assume all is constant except volume and temperature V1/T1 = V2/T2 - remember to use kelvin (C + 273) 3.6/348 = V2/258 V2 (in liters) = 2.67
1 answer · Earth Sciences & Geology · 7 years ago
• ### What were roosevelts first hundred days like?

http://storiesofusa.com/great-depression... FDR created a lot of government programs called the New Deal in order to get the economy back up. The webpage provided lists many programs he got going - many of which were within his first 100 days of office
http://storiesofusa.com/great-depression... FDR created a lot of government programs called the New Deal in order to get the economy back up. The webpage provided lists many programs he got going - many of which were within his first 100 days of office
2 answers · History · 7 years ago
• ### What does the Appomattox court house have a connection to todays society?

http://storiesofusa.com/american-civil-war-timeline-battlefields-1854-1865/#robert-e-lee-surrenders-1865 This is where General Robert E Lee surrendered officially ending the bloodiest war in US history. One of the results of the war is that a state cannot just up and leave the Union. If Colorado or California wanted to form its own country, it... show more
http://storiesofusa.com/american-civil-w... This is where General Robert E Lee surrendered officially ending the bloodiest war in US history. One of the results of the war is that a state cannot just up and leave the Union. If Colorado or California wanted to form its own country, it can't. Why? Because the federal government would prevent it from hppening.
2 answers · Government · 7 years ago
• ### A 2kg rock is release from rest at a height of 29m?

Best answer: potential energy = mgh g=9.8 m/s2; m=2 kg kinetic energy = 1/2mv2 m=2 kg PEstart = KEend @5m PE = (2)(9.8)(5) = (0.5)(2)(v)2 = KE v = 9.9 m/s @9 PE = (2)(9.8)(10) = (0.5)(2)(v)2 = KE v = 14.0 m/s @15 PE = (2)(9.8)(15) = (0.5)(2)(v)2 = KE v = 17.1 @20 PE = (2)(9.8)(20) = (0.5)(2)(v)2 = KE v=19.8 m/s
Best answer: potential energy = mgh g=9.8 m/s2; m=2 kg kinetic energy = 1/2mv2 m=2 kg PEstart = KEend @5m PE = (2)(9.8)(5) = (0.5)(2)(v)2 = KE v = 9.9 m/s @9 PE = (2)(9.8)(10) = (0.5)(2)(v)2 = KE v = 14.0 m/s @15 PE = (2)(9.8)(15) = (0.5)(2)(v)2 = KE v = 17.1 @20 PE = (2)(9.8)(20) = (0.5)(2)(v)2 = KE v=19.8 m/s
2 answers · Physics · 7 years ago
• ### Solving quadratic functions? :(?

x = +/- 2 square root of 4 = 2 you can have either a positive or negative value
x = +/- 2 square root of 4 = 2 you can have either a positive or negative value
7 answers · Mathematics · 7 years ago
• ### Can you help with this algebra math? 50-8a^2=0?

8a(squared) = 50 a(squared) = 25/4 a = +/- 5/2
8a(squared) = 50 a(squared) = 25/4 a = +/- 5/2
5 answers · Mathematics · 7 years ago
• ### Help in project? American Enterpreneurs?

Best answer: I wrote an entire article about the Greatest Entrepreneurs with videos, etc http://storiesofusa.com/greatest-america... Mark Zuckerberg is on the list - listed from oldest to youngest
Best answer: I wrote an entire article about the Greatest Entrepreneurs with videos, etc http://storiesofusa.com/greatest-america... Mark Zuckerberg is on the list - listed from oldest to youngest
2 answers · History · 7 years ago
• ### Which form of the government gives power to make decisions to the greatest number of people?

theoretically it is a democracy, but a true democracy is unstable and will eventually lead to anarchy. a republic is a stable form of government in which the people are represented.
theoretically it is a democracy, but a true democracy is unstable and will eventually lead to anarchy. a republic is a stable form of government in which the people are represented.
3 answers · Government · 7 years ago
• ### What three areas or the world did the u.s focus on?

Best answer: Monroe Doctrine - Western Hemispere http://storiesofusa.com/american-expansi... Mexico http://storiesofusa.com/american-expansi... Caribbean and Philippines http://storiesofusa.com/spanish-american... Europe - WWI and WW2 http://storiesofusa.com/ww1-battles-timeline-world-war-1-1914-1918/
Best answer: Monroe Doctrine - Western Hemispere http://storiesofusa.com/american-expansi... Mexico http://storiesofusa.com/american-expansi... Caribbean and Philippines http://storiesofusa.com/spanish-american... Europe - WWI and WW2 http://storiesofusa.com/ww1-battles-timeline-world-war-1-1914-1918/
1 answer · History · 7 years ago
• ### If I built a circular fence that was 4.5 miles long, how many acres of land would it contain?

Best answer: Circumference = pi X Diameter Area = pi X radius squared 640 Acre = 1 Square Mile 4.5 = 3.14159d d = 1.43 miles A = (3.14159)(0.7162)(0.7162) = 1.6115 square miles ~ 1031 Acres
Best answer: Circumference = pi X Diameter Area = pi X radius squared 640 Acre = 1 Square Mile 4.5 = 3.14159d d = 1.43 miles A = (3.14159)(0.7162)(0.7162) = 1.6115 square miles ~ 1031 Acres
2 answers · Geography · 7 years ago
• ### Factor 4v^2 + 28vp + 49p^2?

(2v + 7p) squared
(2v + 7p) squared
3 answers · Mathematics · 7 years ago

d/r = t t1 + t2 = t-total 62/r + 16/(r-5) = 2 62(r-5) + 16r = 2r(r-5) 62r + 16r - 310 -2r2 + 10r = 0 -2r2 + 88r -310 = 0 r2 -44r + 160 = 0 r = (44 +- sqrt(1936-640))/2 r = 40 or 4 (r cannot be 4) rate1 = 40, rate2 = 35 in mph
d/r = t t1 + t2 = t-total 62/r + 16/(r-5) = 2 62(r-5) + 16r = 2r(r-5) 62r + 16r - 310 -2r2 + 10r = 0 -2r2 + 88r -310 = 0 r2 -44r + 160 = 0 r = (44 +- sqrt(1936-640))/2 r = 40 or 4 (r cannot be 4) rate1 = 40, rate2 = 35 in mph
6 answers · Mathematics · 7 years ago
• ### Check my math homework! (Pre-Algebra)?

Best answer: 1) 5:80 or 1:18 2) 34.45 - 3.25 = 1.6x x = 19.5 3) 1.17/9 = \$0.13/oz 4) 29 = 81n / 100 n = 35.8 5) A = P(1 + r/n) nt A = 2000(1 + 0.08)2 = 2332.80 6) 0.02973
Best answer: 1) 5:80 or 1:18 2) 34.45 - 3.25 = 1.6x x = 19.5 3) 1.17/9 = \$0.13/oz 4) 29 = 81n / 100 n = 35.8 5) A = P(1 + r/n) nt A = 2000(1 + 0.08)2 = 2332.80 6) 0.02973
3 answers · Mathematics · 7 years ago
• ### Someone help me clear up a math misunderstanding?

Best answer: (xx)(xxx) = x5 (x2)3 = (xx)(xx)(xx) = x6
Best answer: (xx)(xxx) = x5 (x2)3 = (xx)(xx)(xx) = x6
3 answers · Mathematics · 7 years ago

1) x6y4 2) 3x + 2x = 60 x = 12
1) x6y4 2) 3x + 2x = 60 x = 12
2 answers · Mathematics · 7 years ago
• ### What are the similarities between The Gettysburg Address and The Declaration of Independence?

Best answer: The Declaration of Independence talks about the creation of an American Nation governed by Americans and sets the land on a path towards war with England. Lincoln references the Declaration of Independence in order to restore hope and purpose to the nation and reestablish the concept of governance by, of and for the... show more
Best answer: The Declaration of Independence talks about the creation of an American Nation governed by Americans and sets the land on a path towards war with England. Lincoln references the Declaration of Independence in order to restore hope and purpose to the nation and reestablish the concept of governance by, of and for the people. http://storiesofusa.com/signed-declarati... http://storiesofusa.com/abraham-lincolns...
5 answers · Government · 7 years ago
• ### I just need help to get started!!!? Us history?

Best answer: The biggest issue related to expansion was slavery. The states in the South wanted to maintain equal power in the federal government. This was accomplished in part by bringing in the same number of southern and northern states http://storiesofusa.com/american-expansi...
Best answer: The biggest issue related to expansion was slavery. The states in the South wanted to maintain equal power in the federal government. This was accomplished in part by bringing in the same number of southern and northern states http://storiesofusa.com/american-expansi...
2 answers · History · 7 years ago
• ### What force has contributed to current American political polarization?

Best answer: These differences have been around since before the beginning of our country. They have been modified some as our country has changed, but the underlying principles are the same. It comes down to a fundamental question: personal freedom versus social justice - which is more important? Many issues create divisiveness: war, abortion,... show more
Best answer: These differences have been around since before the beginning of our country. They have been modified some as our country has changed, but the underlying principles are the same. It comes down to a fundamental question: personal freedom versus social justice - which is more important? Many issues create divisiveness: war, abortion, religion, etc. http://storiesofusa.com/the-great-confli...
2 answers · History · 7 years ago
• ### Parents kicked me out LEGAL ADVISE PLZ?

If you are under 18 call child services department in the county you live in If you are over 18 - figure this thing out called life
If you are under 18 call child services department in the county you live in If you are over 18 - figure this thing out called life
4 answers · Law & Ethics · 7 years ago
• ### How do i solve 12x-3< or = 5x+2?

12x - 3 <= 5x + 2 7x <= 5 x <= 5/7
12x - 3 <= 5x + 2 7x <= 5 x <= 5/7
3 answers · Mathematics · 7 years ago