Friday
April 18, 2014

Posts by Jake


Total # Posts: 1,682

science
2mL of a 10M solution of Compound A is taken and 48mL added. 1mL of this solution is then taken and dried to dryness before being re-dissolved in 0.1mL. What is the concentration of the 0.1mL solution?

science
NaOH has a MW of 40. A 0.12M solution is made by adding how much NaOH to 100mL of water?

Physics
A hand-pumped water gun is held level at a height of 0.85 m above the ground and fired. The water stream from the gun hits the ground a horizontal distance of 6.9 m from the muzzle. Find the gauge pressure of the water gun's reservoir at the instant when the gun is fired. ...

Algebra (URGENT)
f(x)=2x+5y-20

Algebra
1000000=P/(1.08)^480 1000000=P/1.105103 P=1,105,103

math
Ty cut his small pizza into sixths. he ate the whole pizza. how many pieces did he have left

physics
A roller coaster car speeds down a hill past point A and then rolls up a hill past hill B.The car has a speed of 16.9 m/s at point A. THe acceleration of gravity is 9.81 m/s^2.If at point A the track exerts a force on the car that is 2.45*10^4 N greater than the car's weig...

Physics
a football is thrown 6.3 feet off the ground with an initial upward velocity of 25 feet per second.

history
Which of the following statements about the provisions of the Compromise of 1850 is true? [ A. Fugitive slaves were denied any and all constitutional rights.] B. The New Mexico Territory was absorbed into Texas. C. The principle of popular sovereignty was abandoned. D. The sl...

history
Which of the following statements about John D. Rockefeller is most accurate? A. He founded the Standard Oil Company when he was 24 years old. [B. He considered competition to be the central ideal of capitalism.] C. He invented the concept of vertical integration. D. He drill...

history
The Wade-Davis Bill passed by Congress, then vetoed by Lincoln, stipulated that _______ percent of voters in a Confederate state must take an oath of future loyalty to the Union before a process of restoration could begin. A. 20 B. 10 C. 70 [D. 50] is my answer correct

history
is it german and lutheran

history
If you were one of the new immigrants who arrived in America in the 1880s, it's most likely that you would have been [ A. Irish and Protestant. ] B. German and Lutheran. C. Swedish and Protestant. D. Italian and Catholic. is my answer correct

history
Which of the following is associated with the development of chain stores? [ A. F. W. Woolworth ] B. Marshall Field C. R. H. Macy D. John Wanamaker is my answer correct

history
In the Battle of _______, a disastrous charge against forces holding Cemetery Ridge led to Confederate defeat. A. Cold Harbor B. Vicksburg [C. Gettysburg ] D. Antietam is my answer correct

Physics
A convex mirror has a focal length of 15 cm. A 3.0 cm high object is located 10 cm in front of this mirror. Where is the image located?

Physics
A 3.0 cmm high object is placed 10 cm from a concave mirror whose radius of curvature is 10 cm. Where is the image located?

Physics
A 5 meter diameter telescope is used to observe binary star systems. What is the minimum separation distance (perpendicular to the line of sight) for which the two stars can be resolved if they are at a distance of 1,000 light years = 10 m and they are observed in visible ligh...

Physics
Light shines through a single slit whose width is 1.12 mm. A diffraction pattern is formed on a screen located 4.0 m away. The distance between the middle central bright fringe and the second dark fringe is 4.0 mm. What is the wavelength of the light?

Physics
A farsighted person has a near point (closest point they can see clearly) of 200 cm. What power and type of lens will correct this condition and allow the person to read a book at 25 cm?

Physics
A light ray travels from water to air. If the ray strikes the water/air boundary at an angle of incidence of 46 degrees, what is the angle of refractiob in air? (n water = 1.33)

history
thanks for all your help i got a 95% on the test

history
The Liberator was to William Lloyd Garrison as the North Star was to [ A. Frederick Douglass.] B. the Grimke sisters. C. Harriet Tubman. D. Theodore Dwight Weld. is my answer in brackets correct

history
Which of the following was true of the Judiciary Act of 1801? A. It packed the Supreme Court with Democratic Republicans. [B. It expanded the federal court system.] C. It was opposed by the Federalists. D. It reduced the power of the federal courts is my answer correct in bra...

history
The West African nation of Liberia was founded under the auspices of A. Dorothea Dix. [B. the American Colonization Society.] C. the American Peace Society. D. William Lloyd Garrison. is my answer correct in the brackets

history
In the Old South, the majority of slaves [A. lived on plantations with 20 or more slaves.] B. lived on plantations with 100 or more slaves. C. worked under a task system. D. lived on small farms. is my answwer correct in brackets

history
During Jefferson's presidency, cities were A. mostly found along the Mississippi. B. mostly the haunts of thieves and degenerates. [C. mainly ports for international trade.] D. mainly industrial centers is my answer in brackets correct

history
Which of the following statements about the Southern planter's world is most accurate? A. The stereotype of the "southern belle" is fairly accurate. B. Most great planters of the Old South were self-made men. C. The wives and daughter of plantation owners lived l...

history
The keystone to what Henry Clay called the American System was? A. abolishing slavery. [B. a high tariff.] C. encouraging British competition. D. a low tariff is my answer in brackets correct

history
Under America's second party system, the Whigs stood for? A. policies that kept government hands off business and industry. B. a "negative liberal state." C. a "liberally negligent" state. [D. policies that directly supported commercial enterprises ] my...

english
Alright thanks!

english
Hi does the following sentence sound alright, or should I replace "and it" with the word which? It was filled with lies, corruption, betrayal and it kept me at the edge of my seat.

Math
If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?

Math
The intensity of illumination at a given point is directly proportional to the intensity of the light source and inversely proportional to the square of the distance from the light source. If a desk is properly illuminated by a 74.0 w lamp 8.00 ft from the desk, what size lamp...

Math
The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

Math
The amount paid to a work crew varies jointly as the number of persons working and the length of time worked. If 5 workers earn $5123.73 in 3.0 weeks, in how many weeks will 6 workers earn a total of $6148.48?

Math
The time needed to empty a vertical cylindrical tank varies directly as the square root of the height of the tank and the square of its radius. By what factor will the emptying time change if the height is doubled and the radius increased by 25%?

Algebra II
The amount paid to a work crew varies jointly as the number of persons working and the length of time worked. If 5 workers earn $5123.73 in 3.0 weeks, in how many weeks will 6 workers earn a total of $6148.48?

Algebra II
The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

Algebra II
The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

Biology-Is my answer correct
Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A, am I right? A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the synthesis of the co...

Biology
Can you please tell me if my answer is right or wrong?

Biology
I replied back saying that I've already used that and now I need someone to tell me if my answer is right or wrong.

Biology
I replied back saying that I've already used that and now I need someone to tell me if my answer is right or wrong.

Biology
Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A, am I right? A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the synthesis of the co...

science
Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A, am I right? A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the synthesis of the co...

Science
mismatch error to be repaired? Which is the best answer, I think it's A. Can someone who know's science tell me if I am right? A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the synthesis of ...

Science-important!
Can someone else help me then because this is due tommorow and I need to know the answer is right.

Science-important!
Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A or B. A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the synthesis of the correct ...

science
Ok so what is the answer, I really need to know.

science
Which of the following must occur for a mismatch error to be repaired? Which is the best answer, I think it's A or B. A)Damaged DNA must be identified by DNA repair proteins B)The sequence of nucelotides in the damaged DNA sequence must guide the synthesis of the correct D...

science-important!
Alright well thanks a lot i guess I'll just have to check with my teacher for sure.

science-important!
Yeh that's what I thought too but apparently I got it wrong on my homework. The class is online and we can make corrections but I thought it was right to begin with so now I'm confused

science-important!
I really need to make sure this is correct for tommorow please help! The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA replication D)protein copies c...

science-important!
I really need to make sure this is correct for tommorow please help! The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA replication D)protein copies c...

Science
I've looked at some of those links already that's why I'm checking with you guys, so am I correct?

Science
The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA replication D)protein copies can be be made directly from the DNA I'm pretty sure the answer is ...

Chemistry
0.88 g CO2

Chemistry
0.88 g CO2

world history
Which of the following statements is true of the Ice Age that began 150,000 years ago? A. Many humans enjoyed high levels of nutrition and long days of leisure. A is the answer

world history
men go hunting women gathering

science
what would the astronauts weight be on the lunar surface?

science
what would the astronauts mass be on the lunar surface?

science
how much less is the gravity on the lunar surface than on earth?

chemistry
in a exothermic reaction temperature changed from 30 to 43, reasons why I got those answers

Math 113
Verify tanxsin2x = 2-2cos^2x

Algebra
how do i solve this please help 5 < x – 2 < 11

math
39+42

English- Scarlet Letter
Hester thought there was three changes that need to be made before young women were able to take there stand next to men as equals. What are the three chnges she was referring to? Relate this philosophy to today's society. Use specific examples. Which of these three steps ...

Science (urgent)
I have 2 biology questions I really need help with, they are due tommorow and I don't know if I'm right. 1)As an energy carrier, ATP differs from NADPH in that: a)ATP carries less energy than NADPH. b)ATP transfers energy through redox reactions whereas NADPH uses phos...

COLLEGE
THANKS! :D I'm going to tell them I won't give up on my dreams but I hate it how they're always telling me to be a doctor or I'm going to have a bad career and won't live a good life

COLLEGE
My parents say I should be a doctor but I want to be what I want. They're forcing me to be one cause the rest of my family is. WHAT SHOULD I DO? D:

in-text citations
If I have an internet article, how would I do an MLA in-text citation of the article. There's no page number. Would I just put the author's last name only in parentheses? I've googled it, but I couldn't find anything,

Physics
Betty Bodycheck (mB = 55.1 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 41.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° c...

Science (urgent)
K thank you very much and actually that's how the question was written which threw me off completely. (I think it stands for chemical reaction, it was random to see though). Thank you for your help though. I understand it much better now!

Science (urgent)
Hi I really need to know this I've asked a couple times but haven't gotten an answer yet. In the reaction X + Y ® Z, Z is the A) substrate. B) product. C) enzyme. D) carbon molecule.

Science
In the reaction X+Y (R) Z, Z is the A)Substrate B)Product C)Enzyme D)Carbon Molecule

calculus
A rocket is fired into the air, and its height in meters at any given time t can be calculated using the formula h(t) = 1600 + 4.9t^2. Find the maximum height of the rocket and the time at which it occurs.

Phycics
Determine the resultant at 21N east and 85N south

Science
Imagine you find a piece of wood on the beach. The next day, the wood is 100 meters farther north. How might it have moved? Your answer should refer to currents

math
john had 15 dollars more than half of what jack had. john had 86 dollars. how much did jack have?

Math/Statistics
STATISTICS PLEASE HELP!!!!! I am sorry this is jy second time posting, but I really need help. I have tried contacting my teacher and classmates with no luck. Please just steer me in the right direction!: Suppose cars arrive at Burger King's drive-through at the rate of 20...

Statistics
Suppose cars arrive at Burger King's drive-through at the rate of 20 cars every hour between 12:00 noon and 1:00 pm. A random sample of 40 one-hour periods between 12:00 noon and 1:00 pm is selected and has 22.1 as the sample mean number of cars arriving. (a) Why is the sa...

physics
i think this is a pre-calculus question

Calculus
If the tangent line to y = f(x) at (4, 3) passes through the point (0, 2), find f(4) and f'(4).

Calculus
If the tangent line to y = f(x) at (4, 3) passes through the point (0, 2), find f(4) and f'(4).

english
Oops I didn't mean to use that sentence i was just using it as guidance, anyways is the rest ok ?

english
hi can you please proof read this and make sure it sounds alright. thanks. Playboy of the Western World is a novel that invoked hostility from nationalist crowds in Dublin. Throughout the book there were several occasions where violent reactions could have occurred as well. Th...

English
Yep I have read it, I would say that's the most significant characteristic for violent reactions, I'm having trouble locating more in the book besides that. Thanks

English
In Playboy of the Western World by J.M. Synge what are some characteristics or moments that would invoke a violent reaction in todays culture?

ten commandmant
Sure, but chaos is total freedom

ten commandmant
I don't know what you mean. True freedom means a lack of rules and regulations. The Ten commandments restrict your freedoms by telling you the way you are supposed to live. The morality involved is up to your judgement, but their intention is to make you live by certain ru...

Physics
The braking distance of a car is 29m. If the speed of the car is increased by 45%, what is the car's new braking distance? Assume the acceleration of the car is constant and independent of its initial speed

geometry
Lines AB and CD are parallel. If the measure of Y equals 56°, what is the measure of Z?

math
.5

English (Urgent)
Hi I'm writing an essay about No-No Boy. Does the following sentence sound alright, if not how do I make it sound better. I need help soon please! Two significant problems in this novel for him is overcoming self blame along with dealing with culturally assimilating himsel...

English
Hi I'm writing an essay about No-No Boy. Does the following sentence sound alright, if not how do I make it sound better. Two significant problems in this novel for him is overcoming self blame along with dealing with culturally assimilating himself to America.

English
Hi, I have to write a 2 page paper about the book No-No Boy, rather than give a plot summary the teacher wants us to discuss important themes. What are some possible topics I could write about and how do I not make the paper turn into a plot summary? Thanks.

social studies
number 2 is vladimir

pre algebra pizzazz
2x+3y=6

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