Saturday
December 20, 2014

Posts by Jennifer


Total # Posts: 2,051

physics
A centrifuge rotor rotating at 7,000 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.30 m·N. If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, through how many revolutions will ...
November 10, 2009

college
if the block weighs 855 newtons, what is the tension in the cable going from point A to point C
November 9, 2009

Trig
3.8 was my answer for the short diagonal. I'm not sure how to find the long diagonal.
November 9, 2009

Trig
I got 3.8, we round to the nearest tenths.
November 9, 2009

Trig
I need help with these kind of problems. We are dealing with word problems and/or pictures that are solved by the Law of Sin or Cosine. If any one kows a wonderful web site that can help with these, I would greatly appreciate it. A parollelogram has side lengths 3 and 5, and ...
November 9, 2009

Trig
Find the area of the triangle. b=125 c=162 <B=40 (b and c are the sides) (<B is the angle)
November 4, 2009

Advance Biology
What is the relationship between CFCs and the Earth's protective layer?
November 1, 2009

Advance Biology
I need help writting exactly 25 words to describe the relationship between CFCs and the Earth's protective ozone layer.
November 1, 2009

Civics
How can I write a sentence using the word lobbying in it?
November 1, 2009

PHYSICS
A 0.445 kg ice puck, moving east with a speed of 2.82 m/s, has a head-on collision with a 0.918 kg puck initially at rest. Assuming a perfectly elastic collision, what will be the speed and direction of each object after the collision? speed of the ice puck ? Direction: west ...
October 31, 2009

Civics
Describe how each of the following factors has influenced the Supreme Court. For each, give an example, cite a case, or give an explanation. The Law: The Justices: Society:
October 31, 2009

Trig
Determine the quadrant in which each lies: sec0<0,cot0<0 sin0<0,tan0>0
October 29, 2009

Trig
I need help with these kind of problems! Can someone tell me how to work this problem out? Given tan0=2 square root of 5 over 4, and sin0<0. a. cos0 b. csc0 The 0 after tan, sin, cos, and csc stands for angle. The 0 after the < stands for negative or less than. I know it...
October 29, 2009

math
23
October 28, 2009

Civics
Identify two alternative solutions for the high case load of the Supreme Court.
October 25, 2009

Civics
What factors determine whether a case will be tried in a state court or a federal court?
October 25, 2009

Civics
The book doesn't say.
October 25, 2009

Civics
When the Supreme Court rules on an appeal from a state court, what restriction applies to the court's ruling?
October 25, 2009

college
define"common goods, public goods, private goods, and natural monopolies"
October 23, 2009

Civics
If the issue is whether a person's civil rights had been violated in a court decision, through which levels of courts might thst person appeal? Need help, this is hard!
October 22, 2009

Civics
Help Me Please!
October 22, 2009

Civics
If the issue is whether a person's civil rights have been violated in a court decision, through what levels of courts might that person appeal? Would it be Federal Courts of Appeal?
October 22, 2009

Civics
I've found the answer!
October 22, 2009

Civics
What are three duties of the chief justice of the United States?
October 22, 2009

AED 200
No, Its not wrong for college level student to ask for help. Maybe if Instructor would explain more clearly, us student wouldn't have to ask for help.
October 20, 2009

math
-7y+6
October 19, 2009

math
what is -8-7(y+2) equal to
October 19, 2009

health
what was champva year of establishment?
October 19, 2009

Social Studies
I'm writing an essay on North Korea. A few years ago in Social Studies, I remember watching a documentary that featured Americans who were illegally in North Korea to do charity work so there would be less starvation. Would you be able to help me find some stories/names of...
October 17, 2009

finance
19,000
October 14, 2009

math
How to find radius?
October 14, 2009

Civics
What have presidents justified under the principles of "immediate needs of the nation" and "a mandate from the people?" Would the answer be: It has shaped the office of the presidency into its modern form.
October 14, 2009

Civics
Thanks!
October 6, 2009

Civics
I have just one more question. Should Congress play a greater role in the formation of American foreign policy? Why or why not? I think Congress shouln't, because they may not want the president to reach an agreement with another country, so that country may become upset ...
October 6, 2009

Civics
Many American presidents have achieved more success in foreign policy than in domestic affairs. Explain why this may be so.
October 6, 2009

Physics
In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." (See Fig. 5-35.) The room radius is 4.6 m, and the rotation frequency is 0.7 revolutions per second when the floor drops out. What is the minimum coefficient of static ...
October 4, 2009

Physics
What is the maximum speed with which a 1070 kg car can round a turn of radius 80 m on a flat road if the coefficient of static friction between tires and road is 0.80?
October 3, 2009

Advance Biology
List 5 traits of enzymes.
October 2, 2009

Math
if an 8 inch wide rectangle is to approach the golden ratio, what should its length be?
September 30, 2009

Thimerosal affect on autism
Does thimerosal cause or relate to autism
September 30, 2009

Cvics
Who is the secretary of the environment? I just need the name.
September 29, 2009

Civics
What is the process by which cabinet members are selected and appointed?
September 28, 2009

Biology
I have two more questions. What carries secretions for export from cell? How do proteins and other substances get from ER to Golgi apparatus?
September 27, 2009

Biology
What is a nonmembranous organelle? What is surrounded by double layer of membrane with pores?
September 27, 2009

CHEMISTRY
Calculate the mass of water produced by 64 grams of CH4 CH4(G) - 2O2 (G) -----CO2(G)-2H2O(l)
September 27, 2009

CHEMISTRY
When you react hydrogen gas with nitrogen gas to form ammonia, How many grams of all species ( reactants and products) are left when you start with 140 grams of nitrogen and 40 grams of hydrogen?
September 27, 2009

chemistry
what the density of an 84.7g simple of an unknown substance if the simple occupies 49.6cm3?show all work and formula
September 27, 2009

business law
Your team is working as a legal team in a mid-size law firm. Your supervisor, a partner in the firm, has been approached by Mr. Al Jones, a land developer and very important client, with the following legal situation: Mr. Jones’s projects include some of the largest ...
September 27, 2009

physics
A box is given a push so that it slides across the floor. How far will it go, given the coefficient of kinetic friction is .21 and the push imparts an inital speed of 4.2 m/s?
September 26, 2009

Geography
why is south Korea a medc country??? any companies? anything in history that made it so? please help
September 26, 2009

English
i don`t know the question
September 24, 2009

Math
Mr.Smith has just recieved 200 gallons of home heating oil.If he pays his bill within 10 days,the oil will cast $0.59 per gallon.If he pays after 10 days,he will pay $0.69 per gallon.What percent savings will Mr.Smith experience within 10 days.Assume that all taxes have been ...
September 23, 2009

Statistics
The Econ Dpt final has 30 questions that are multiple choice. There are 5 possible answers. If you guessed the answers to all the questions, how many would you expect to get right. Choices are 6, 7.5, 7?
September 19, 2009

algebra
what is 42t/-14z divided by -6/7t
September 14, 2009

Math
I forgot how to do this- 8/9-4/5=
September 11, 2009

MATH 156
Yes I did since I can't put a picture of a track I just wrote down the problem so the question is asking how much further does Teresa run than Martina?
September 9, 2009

MATH 156
The inside lane in the track is 50m and the outside of the track is 100m 4 lanes are added around the outside of the track shown above. Each lane is 1 meter wide and the lanes are immediately next to each other with no space in between. If Teresa runs once around the outside ...
September 9, 2009

chemistry
why isnt there a standard SI unit for volume?
September 5, 2009

Computers (Anonymous)
It is a collection of steps required to convert data into information. There are phrases like input, process, output and feedback. In the step of collection, the raw facts are collected from different stages. The collection data is classified into different categories in the ...
September 4, 2009

Civics
How has the system of checks and balances caused the seperation of powers among the three branches of government to become less distinct?
September 1, 2009

Civics
In what ways may the Constitution be changed informally?
September 1, 2009

Civics
Describe how an admendment to the Constitution can be ratified.
September 1, 2009

Trig
I'm still having trouble
August 31, 2009

Trig
Thank You!
August 31, 2009

Trig
I'm suppose to find the sin, cos, and tan of the degrees.
August 31, 2009

Trig
Special Angles And their Measures Fill out the Table Below: in degrees Sin Cos Tan 0 30 45 60 90 120 135 150 180 210 225 240 270 300 315 330
August 31, 2009

general science
A Compound Containing 3 Atoms Of Carbon And 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The Two End Products Of This Equation Are Carbon Dioxide And Water. What Element Should You Look At First In Balancing This Equation?
August 9, 2009

Math 117
then what do I divide 90 by 20? But then I will come up with 4.5 and that is not one of my mult. choice answers.
July 23, 2009

Math 117
1. how many three-letter code symbols can be formed using a set of 5 different letters in repetion is not allowed? 2. Mark can remember only the first 5 digits of his friends phone number. He also knows that the number has 7 digits and that the last digit is not 0. If mark ...
July 23, 2009

writing
how do you know a source is credible
June 25, 2009

Physics.
I meant "at a distance of 5 cm from the mirror."
May 19, 2009

Physics.
A concave mirror of focal length 10 cm forms an upright and diminished image of an object placed at a distance of 10 cm from mirror. It would be false right?
May 19, 2009

Physics.
A beam of light passes from air to ethanol, with index of refraction of 1.36. If the angle of incidence (1) is 30.0 degrees, then calculate he angle of refraction, after light passes through ethanol and enters into air. I got 30.0 because wouldn't the light beam upon re-...
May 19, 2009

Math
6x+4> Or = 34
May 18, 2009

math
(7p+5)(8p-5) its distribuctive property
May 13, 2009

5th grade science
What is the continous movement of water between Earth's surface and the air?
May 12, 2009

Calculus
I have two questions, because I'm preparing for a math test on monday. 1. Use the fundamental theorem of calculus to find the derivative: (d/dt) the integral over [0, cos t] of (3/5-(u^2))du I have a feeling I will be able to find the derivative easily, I'm just having...
May 9, 2009

health issue
I say no the health care facility should expose the identity of patients with AIDS because that is going against the law of confidentiality. In the health care field that is the number one biggest rule a health care profession should never do. If you had AIDS would you want ...
May 7, 2009

English please check the grammar of this sentence!
The Philippines has constantly experienced typhoons, but Typhoon Durian that struck on December, 2006 has taken away the hope of 800,000.
April 29, 2009

thesis statement for my research report below
The Philippines has constantly experienced typhoons, but Typhoon Durian that struck on December, 2006 has taken away the hope of 800,000. is it okay??
April 29, 2009

English - Research Report
No, it will include something about Typhoon Durian. But could you please check the content of my essay?
April 29, 2009

English - Research Report FIXED
Typhoons in the Philippines: Durian (Our English teacher said something about the thesis statement, and I know what that is, except that she told us to put the thesis statement in our title? So does that mean we include it, or is our thesis statement our title?) Typhoons in ...
April 29, 2009

English - Research Report
Typhoons in the Philippines: Durian (Our English teacher said something about the thesis statement, and I know what that is, except that she told us to put the thesis statement in our title? So does that mean we include it, or is our thesis statement our title?) Typhoons in ...
April 29, 2009

Stats
A sample of 27 blue M&Ms has a mean weight of 0.8560 grams. Assume that is known to be 0.0565 g. Consider a hypothesis test that uses a 0.05 significance level to test the claim that the mean weight of all M&Ms is equal to 0.8535 grams (the weight necessary so that bags of M&...
April 24, 2009

Government.
The main purpose of a city's charter is to: a. create a boundary with the county b. set out the city's basic laws c. provides a forum for public debate d. provides for an election of city officers I'm leaning towards B. But, could D be the answer?
April 21, 2009

Busidness Computer Administrations
What is a phony refutation? Why is it bad?
April 20, 2009

Chem
thankyou it helped
April 18, 2009

Chem
How many grams of dry NH4Cl need to be added to 1.80L of 0.200M solution of ammonia,NH3, to prepare a buffer that has a pH of 8.69? Kb for ammonia is 1.8*10^-5
April 18, 2009

Chem HELP!!!!!!!
the answer is suppose to be 2.7g im not getting that. This is what i did 1. Used KSP expression for Mg(OH)2 1.8*10^-11= (0.1)(OH-)^2 for [OH-]= 0.000013416 then for Kb expression 1.8*10^-5= [NH4](0.000013416)/(0.150) [NH4]= 0.20125223614 then 0.20125223614(mol/L) * 0.5L (total...
April 18, 2009

college (Physical Science/Physics)
I am having difficulty with this equation. I have been working with it for several weeks! Please Help. the equation is this: solve for Lf Lf=[(CwMw+CsMs+CcMc)(To-Tf)//Mi-CwTf values Cw=1.00; Mw=143.4; Cs=0.11; Ms=30.0; Cc=0.22; Mc=57.7;To=23.9; Tf=14.2;Mi=16.7 I keep comming ...
April 17, 2009

Psychology
I think it would. As humans we are drawn to things that please us visually.
April 17, 2009

matg
transform function f(x)=x^2 into a new function g(x) by shifting f(x)horizontally 9units to the rig t, reflecting the result across the x axis, and then shifting the result up 4 units. find the equation g(x)
April 17, 2009

LA a book summary help
PLASE PLASE HELP ME PLEASE
April 16, 2009

LA a book summary help
i need to do a book summary about the last apprentice. but i dont know what to write.i am like lost right now while trying to figure out what to write.i need a short summary. its due tommorow. and i need it done by 10 tonight.i forgot the important things that happen in the ...
April 16, 2009

accounting (this right)
Yes, this is right. I just found this site because I was Plagiarism checking my paper and it came up that this information was on my paper and on here. What is this anyway?
April 16, 2009

WG
what is another name for a line of longitude?
April 2, 2009

Science
1- When a solid like carbon dioxide changes directly into a gas without becoming a liquid its a____________. 2-what are the states of matter in order, from the greatest thermal energy to the lest thermal energy__________, ____________,and ___________. 3- when a gas changes ...
April 1, 2009

Pre Cal.
Solve 3y^2 + 4y - 2 greater than/equal to 0 3y^2 + 4y - 2 ≥ 0 3y^2 + 4y - 2 = 0 y = [-4 ± sqrt (4^2 - 4(3)(-2)]/(2 • 3) = (-4 ± sqrt 40)/6 = (-4 ± 2 rad 10)/6 = (-2 ± rad 10)/3 Is this right?
March 31, 2009

Pre Cal.
Determine the slant asympotte [sic] for f (x) = (x^2 - 5x - 3)/x My answer: (x^2 - 5x - 3)/x = x - 5 - 3/x The slant asymptote is y = x - 5.
March 31, 2009

accelerated math
Hey everyone I need help with solving the following equations: which is 7n * 1/3 written as a quotient? which is 4j * 1/7 written as a quotient? Can you please show step by step how to solve these so I can explain it to my cousin. thanks
March 25, 2009

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