Thursday

September 3, 2015
Total # Posts: 1,997

**Physics**

We consider a man of mass m = 84 kg as shown in the figure below using crutches. The crutches each make an angle of θ = 26degrees with the vertical. Half of the person's weight is supported by the crutches, the other half is supported by the normal forces acting on ...
*September 26, 2009*

**College Physics**

Box M2 sits atop M1. (M1=25kg M2=15kg). The coefficient of friction between boxes and between M1 and the ground is Uk=.4 and Us=.5. I found that 353N is the maximum force you can apply to box 1 so that box 2 doesn't slip off. Now it asks for the acceleration of M1 and M2 ...
*September 24, 2009*

**Accounting**

Just take the $5,000 and multiply it by the remaining months. April-December is 9 months so subtract that from 24 to get 15. (5,000*15/24) which should equal 3,125.
*September 17, 2009*

**history**

I have already been to this site and I cannot find an answer to this question.
*September 13, 2009*

**History**

What was the United State's roll in the Mexican Independence?
*September 13, 2009*

**Math 156**

Thank you!
*September 5, 2009*

**Math 156**

On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 32 questions correct. What was the percent of increase?
*September 5, 2009*

**English**

I need a character summery of Bella from Twilight. I haven't read the book, don't have time to. quick little things about her really. thanks,
*September 1, 2009*

**grammar**

In the sentence below is the verb divided transitive or intransitive. We divided the rest of the cake among us.
*August 18, 2009*

**geometry**

what would be the next sequence in george, thomas, abe, alexander,...and why
*August 17, 2009*

**American Democracy**

Its D
*August 11, 2009*

**Maths**

Prove that a number 10^(3n+1) , where n is a positive integer, cannot be represented as the sum of two cubes of positive integers. thanx
*July 15, 2009*

**Economics**

Diminishing return is the stage of production which the increase in input should be stopped. But even in this stage, the employer can still hire a new person if the value of marginal product is above the wage rate. The rule is that P x MP= input price. If the wage rate ...
*July 6, 2009*

**physics- response to bobpursley**

which is false? Consider the following processes: I. Energy flows as heat from a hot object to a colder object II. Work is done on a system and an equivalent amount of energy is rejected as heat by the system III. Energy is absorbed as heat by a system and an equivalent amount...
*June 24, 2009*

**physics**

which is false? Consider the following processes: I. Energy flows as heat from a hot object to a colder object II. Work is done on a system and an equivalent amount of energy is rejected as heat by the system III. Energy is absorbed as heat by a system and an equivalent amount...
*June 24, 2009*

**chemistry**

The heat capacity of object B is twice that of object A. Initially A is at 300 K and B is at 450 K. They are placed in thermal contact and the combination is isolated. The final temperature of both objects is:
*June 22, 2009*

**science**

thank you very much for your help!! :) <3 <3
*June 17, 2009*

**science**

1) what is the mass of 10 cc of water? 2) why does a block of wood float on water? 3)how and why can density by used to identify an unknown substance? 4) describe the relationship between density, water, an d things that float please help me just need these answers to study ...
*June 17, 2009*

**trig**

It's in sigma notation, so I'm not sure how to type it. I'll just use E lol. Find each sum. 6 E (n+1)/(n+2) n=1 Is this a geometric or arithmetic series? That is pretty much all I really need to know. I appreciate all the help you guys give.
*June 16, 2009*

**trig**

I have no idea how to solve this problem. <A is in standard position on a unit circle. Point P (-1/2, -√3/2) is the point of intersection of its terminal side with the unit circle. Find the measure of <A in radians.
*June 10, 2009*

**accounting**

P 4-6 "University Physician Compensation"
Physicians practicing in eastern University's hospital have the following compensation agreement. Each doctor bills the patient (or Blue Cross Blue Shield) for his or her services. The doctor pays for all ...
*June 10, 2009*

**accounting**

House mortgage You have just purchased a house and have obtained a 30-year, $200,000 mortgage with an interest rate of 10 percent. Required: a. what is your annual payment? b. Assuming you bought the house on Jan. 1st, what is the principle balance after one year? c. After ...
*June 10, 2009*

**accounting**

Mr. Jones intends to retire in 20 years at the age of 65. As yet he has not provided for retirement income, and he wants to set up a periodic savings plan to do this. If he makes equal annual payments into a savings account that pays 4 percent interest per year, how large ...
*June 10, 2009*

**Science**

give 3 examples of pure science vs applied science
*June 7, 2009*

**earth science**

what is the greatest danger from volcanoes?? a. watery lava b. mud flows c. oxygen d. bulging of the earth's crust
*June 6, 2009*

**civics I**

once a bill is passed by congress and signed into law by the president can it be changed?
*June 2, 2009*

**Language Arts**

Lumberjack Beds now starts with a B. 6 letters long. 3rd letter is L and 5th letter is K. Last letter is probably S. Help?
*June 1, 2009*

**Language Arts**

Figured out who Helped the Cook = Choreboys, Now all I need is Lumberjack beds. Help?
*June 1, 2009*

**Language Arts**

Helped the Cook - 9 Letters, begins with C and ends in YS. Lumberjack Beds - 6 letters, 3rd letter is L and 5th letter is K, Maybe?
*June 1, 2009*

**Language Arts**

Need Help with a Camp Crossword Puzzle. Need to know Another word for Lumberjack Beds and Another word for Who Helped the Cook?
*June 1, 2009*

**trig**

I need to know how to graph y = sin 2(x - Pi/3) I need to have: Amplitude Period Phase Shift 5 critical points Help would be appreciated. Thanks.
*May 28, 2009*

**Chemistry**

The age of a rock can be estimated by measuring the amount of 40Ar trapped inside. The calculation is based on the fact that 40K decays to 40Ar by a first-order process. It also assumes that none of the 40Ar produced by the reaction has escaped from the rock since it was ...
*May 21, 2009*

**trigonometry**

It all makes sense now!!!! Thanks, haha.
*May 19, 2009*

**trigonometry**

But how do I know where cosine (or tangent and sine) are positive? I don't understand. Thanks for the help, btw.
*May 19, 2009*

**trigonometry**

Sorry, my mistake. It is arccos, not arcsin. Also, the negative in the book is exactly in the middle. The book just says evaluate the expression.
*May 19, 2009*

**trigonometry**

Evaluate the expression. arcsin (-1/2) Is there a rule I am missing? How do I know which quadrant the triangle belongs in? That is the only thing that is stopping me. Much help appreciated.
*May 19, 2009*

**Algebra**

y = (x - 4)^2-2
*May 14, 2009*

**Calculus**

Find the equation of the tangent line to the curve 2e^(xy) = x + y at (0,2)
*May 14, 2009*

**history**

a unified germany was built around the nucleus of the kingdom of?
*May 9, 2009*

**trig**

I do not understand these problems. :S I'd really appreciate the help. Use trigonometric identities to transform the left side of the equation into the right side. cot O sin O = cos O sin^2 O - cos^2O = 2sin^2 O -1 (tan O + cot O)/tan O = csc^2 O
*April 27, 2009*

**5th grade**

what can i write as an essay to convinse my teacher not to give me homework next week
*April 23, 2009*

**english (Gulliver's Travel)**

Or was it the allusion that influenced the readers?
*April 19, 2009*

**english (Gulliver's Travel)**

I know Gulliver dislikes his governement at home, but what traditions does he what to modify in the government? Also, how was he able to influence the reader? What techniques does the author uses to influence the reader? - Was it the satire?
*April 19, 2009*

**Chemistry-PLEASE HELP!!!**

Give a full balanced nuclear equation fro the synthesis of xenon-133. A full balanced nuclear equation includes α particles, β particles, positrons and gamma rays.
*April 17, 2009*

**To: GuruBlue Please Read**

So would the answer be: Benvolio?
*April 14, 2009*

**Romeo and Juliet Quotation Help**

I need help to know who said this quote. I don't have a textbook of the play, and I tried to search for it on google but it didn't help any. This is the quote "... most are busiest when they are most alone." Please help thanks.
*April 14, 2009*

**Romeo and Juliet Quick Question**

I'm doing a paper on act 5 of romeo and juliet does Capulet think Romeo killed Juliet
*April 12, 2009*

**Romeo and Juliet HELP**

What does I sell thee poison. Thou hast sold me none mean? I'm reading act 5 and I'm trying to understand what there saying. I tried to look it up on google but couldn't find anything. Please someone help me thanks.
*April 10, 2009*

**math**

what is the slope and y-intercept of the line 3x-2y=12?
*April 7, 2009*

**O-Chem**

What is EDTA exactly and why do we use it in lab setting? I researched but having a little hard time understanding the concept. thanks
*April 7, 2009*

**Environmental Science**

1. How are carbon emissions related to the carbon that accumulates in the atmosphere? 2.How is carbon absorption related to the carbon that accumulates in the atmosphere? 3.What happens to carbon in the atmosphere when carbon emissions are equal to carbon absorption? 4.What ...
*April 4, 2009*

**8th grade**

sing old mcdonald and push it over
*April 1, 2009*

**English passage ques**

thanks yes, that was what I was leaning towards but because nothing in a sounded wrong, I got confused
*March 24, 2009*

**English passage ques**

I have read this paragraph several times and cannot decide between two interpretations. Mr. Tulliver is the father who is afraid his daughter will become to upper class to be married off well. The question asks about the relationship between Maggie (daughter) and father (Mr. ...
*March 24, 2009*

**Debating**

I need to provide arguments that mining is not horrible for the environment. I'm trying to look for stories that explain positive effects of mining, or how they help the environment (even if indirectly or in a small way). This is just very hard to find. Thank you.
*March 20, 2009*

**11th grade**

What are the formal and functional regions of seattle washington???
*March 16, 2009*

**Math**

A translation has this rule:(x-5,y). Fill in the answers This translation is (how many) Units (in what direction) Answer:
*March 11, 2009*

**History**

If you are/were a teacher, or based on your experiences as a student, do you think its strange for a teacher to take off points on an essay for the word "very?" I see how it's overused, but it helps to differentiate the degree of something.
*March 4, 2009*

**Math**

total amount of rope:30x5=150 150 ÷3=50 50 YARDS OF ROPE is the answer
*February 26, 2009*

**Science**

How does the earth's tilt affects how directly light reaches different parts of the earth?
*February 25, 2009*

**math**

My homework is annoying every night. Well good luck to you! Thanks for the help!
*February 17, 2009*

**math**

Nice! So you do this for fun? Or do these people pay you?
*February 17, 2009*

**math**

Thanks! I thought I was correct to begin with! Are you a math teacher?
*February 17, 2009*

**math**

Thanks but someone else told me that the equation is suppose to be transferred to function form which is y = 4x - 7, and the possible x and y pairs would be (-1, -11) (0,-7) (1,-3. Which method is correct, or does the line have infinate solutions? Thanks!
*February 17, 2009*

**math ordered pairs**

Are these possible solutions? (2,1) (3,5) and (4,9)? Thanks for the help!
*February 17, 2009*

**math**

Three ordered pairs for 4x - y = 7
*February 17, 2009*

**Physics**

do the sum of the forces= mass x acceleration formula. so mgsin30-friction=ma. that means that mgsin30- mew(Normal)=ma mgsintheta-mew(mg)=ma the masses cancel out and the only variable youre left with is the coeffecient of friction
*February 3, 2009*

**calculus**

Use Newton's Law of Gravitation to compute the work W required to launch a 1500 kg satellite vertically to an orbit 800 km high. You may assume that the earth's mass is 5.98*10^24 kg and is concentrated at its center. Take the radius of the earth to be 6.37*10^6 m and ...
*February 3, 2009*

**calculus**

Use Newton's Law of Gravitation to compute the work W required to launch a 1500 kg satellite vertically to an orbit 800 km high. You may assume that the earth's mass is 5.98*10^24 kg and is concentrated at its center. Take the radius of the earth to be 6.37*10^6 m and ...
*February 2, 2009*

**calculus**

Find the numbers b such that the average value of f(x) on the interval [0, b] is equal to 9. f(x)=7+10x-3x^2
*February 2, 2009*

**calculus**

Use integrals to prove that the volume of a sphere of radius R is equal to (4/3)(pi)R^3
*January 31, 2009*

**3rd grade**

Would you capitalize (golden eagles) in this sentence? Do you recall the golden eagles in the forest?
*January 28, 2009*

**math**

He has somewhere between 180 and 198. Here's why. He has 3 albums. You know one album has 54. You know the other album as 72. 54+72 = 126 Now, we also know he has one more albume. The album has anywhere between 54 cards and 72 cards in it. 126 + 54 = 180 126 + 72 = 198 The...
*January 26, 2009*

**Chemistry repost**

A student determined that ethanol was the best solvent to use for a recrystallization based on small scale trials. When the recrystallization was carried out on a larger scale, no crystals were obtained on cooling the hot solution. Why? and how would you overcome this problem???
*January 25, 2009*

**physics**

This is a sum of torque problem. T(left) = F(board)*Distance from left + F(person)*Distance left + F(right)*Distance from left = 0 T(right) = F(board)*dist from right + F(person)*dist from right + F(left)*distance from right. In reality, we are summing clockwise torques with ...
*January 20, 2009*

**CHEM URGENT!!**

If a cube with edges of 1.000 cm weighs 25.68 g, what would the mass of a cube of the same material with sides 2.63 cm in length be?
*January 16, 2009*

**math**

The tread depth of the tires on your family's new car is 3/8 inch. you predict that, as a result of driving the car, the change in tire tread depth will be about -3/64 inch per year. A. write a variable expression for the tire tread depth after y years of driving. Use your...
*January 7, 2009*

**9th grade**

A buoyant girl ant
*January 7, 2009*

**collage algebra 1**

y=-2x+b Plug and chug 3=-2(4) 3=-8 -8 both sides -5=b equation is y=-2x-5
*January 5, 2009*

**DR BOB???**

x+3=4x?
*January 5, 2009*

**Math**

Dude thats easy mat 44 ? to -56 +56 will get you to zero and then you add 44. That's what??? 56 +44? Whats the answer?
*January 5, 2009*

**work problem math**

15 seats not sold. 1 % of walk in tickets. The theatre made $3187.5
*January 5, 2009*

**math riddle**

But hey tip..you should try solving the problems in order to get the answers so that you can solve the riddle. IF you go to shcool with just the riddle solved, you will not get full or perhaps any credit for your work, so better off trying to get help for the actual equations ...
*January 5, 2009*

**math riddle**

a quacker? maybe
*January 5, 2009*

**math word problem**

$705 dollars for the walk in tickets $528.75
*January 5, 2009*

**ALGBERA**

[SQRT(2x + 2)] - [SQRT(x - 3)] = 2
*January 5, 2009*

**MRS SUE I NEED YOUR HELP**

Okay I get x+3=4x ?
*January 5, 2009*

**MRS SUE I NEED YOUR HELP**

Cna you help me set it up please?
*January 5, 2009*

**MRS SUE I NEED YOUR HELP**

[SQRT(x + 3)] = 2[SQRT(x)]
*January 5, 2009*

**math**

Well 57/7 is??? 8.1 If you round it. IM just doing the math as far as what you wer doing up there
*January 5, 2009*

**math**

Hey I will most likely by able to help you with this but first 64-7 is not 63
*January 5, 2009*

**EQUATIONS**

CAn you solve for y?
*January 5, 2009*

**EQUATIONS**

9y2 + 16=0
*January 5, 2009*

**3rd grade**

No I probbally wouldnt. at most your probably have 25-30 students in your classrooms. SO the most is about 60 shows, 2 on each foot.. So maybe 100 would be a more reasonable number. Hope this helps.
*January 5, 2009*

**Math**

x+5>1 You subtract 1 from both sides
*January 5, 2009*

**ALEgBRA 2**

Give the domain (that is, possible values of x): 1. y= 2[SQRT(x - 1)] 2. y=-[SQRT(4 - 3x)] + 6
*January 5, 2009*

**quote**

Well it's inevitable that we will feel moments of sadness throughout our lives. However, those thoughts can in a sense fly through one ear and then out the other. However, those thoughts nesting in our hair can represent those thoughts staying permanetly, and over this we ...
*January 5, 2009*

**ALGEBRA**

Ok thank you for your help. Can you help me solve this equation? 9y2 + 16=0
*January 5, 2009*

**ALGEBRA**

Thank you What would be the answer C?
*January 5, 2009*

**5th Grade-Fractions**

a pizza is divided into 5 pieces...4 of the pieces are equal--the other piece is one/half the size of the other. what fraction of the pizza is the smallest piece?
*January 5, 2009*