Thursday

September 18, 2014

September 18, 2014

Total # Posts: 344

**physics**

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.03 m/s2. The magnitude of the car's velocity at the end of ...
*October 3, 2011*

**physics**

In an historical movie, two knights on horseback start from rest 72.6 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.280 m/s2, while Sir Alfred's has a magnitude of 0.250 m/s2. Relative to Sir George's ...
*October 3, 2011*

**prealgebra**

IM stuck on a question. PLease help. A teacher is giving candy to his periods. First period gets 1/3 and 2nd period gets 1/4 and 3rd period gets 1/3 and finally 4th period gets 22 pieces. How many pieces did each period get? Im stuck!!
*August 31, 2011*

**prealgebra**

if 9% = 22 what is 100%?
*August 31, 2011*

**geometry**

In the equation y = 3x − 4, the __________.
*June 25, 2011*

**Trig**

The graph of y = 7cosx + 24sinx would be a sinusoid if it were plotted. What would be the first positive value of x at which there is a high point?
*June 17, 2011*

**life orientation**

critically discuss 5 ways in which the human or enrimental problem impacts on the community within south africa
*June 12, 2011*

**English**

What examples does Holden give about how mean the guys at Pency were treating him in chapter 22 of The Catcher in the Rye?
*May 26, 2011*

**algebra**

what is the slope of line that passes through (-3,-8) and (0,6)
*May 25, 2011*

**geometry**

Which of the following are measurements of the sides of a right triangle? Select one of the options below as your answer: A. 3, 4, 5 B. 28, 26, 12 C. 17, 14, 6 D. all of the above
*May 6, 2011*

**algebra please help!**

I need help understanding how to do these problems. Thanks! 1) Find the value(s) that would be left out of the range of f. If there is more than one value separate them by commas. Leave fractional answers in fraction form. If there are no values left out of the range respond ...
*May 3, 2011*

**physics**

Find the minimum kinetic energy needed for a 3.7×104-kg rocket to escape the Moon.
*April 28, 2011*

**physics**

Meteorites from Mars Several meteorites found in Antarctica are believed to have come from Mars, including the famous ALH84001 meteorite that some believe contains fossils of ancient life on Mars. Meteorites from Mars are thought to get to Earth by being blasted off the ...
*April 28, 2011*

**Math (Reflection across y=x line)**

Here's a question that I am having trouble with: What is the resulting equation when y=x^3+2x^2 is reflected across the y=x line? I know that I need to switch the y with the x's in the equation, so is the answer they're looking for simply x=y^3+2y^2 or do I need to...
*April 5, 2011*

**Rational Inequality with Absolute Value**

Thanks for you help. I would have expressed my answer in the way you suggested, but I wasn't sure how to type the infinity symbol. I will watch out for the glitch you mentioned. Thanks again, Randy
*March 26, 2011*

**Rational Inequality with Absolute Value**

Here's a question I'm having trouble with: |x|/|x+2|<2 Solve for x. I'm trying to use the case method to solve this problem. Basically I just need confirmation that I did this correctly. I'm doing this through distance learning so I can't ask a teacher ...
*March 26, 2011*

**Physics**

At an amusement park, a swimmer uses a water slide to enter the main pool. If the swimmer starts at rest, slides without friction, and descends through a vertical height of 2.41 m, what is her speed at the bottom of the slide?
*March 22, 2011*

**financial management**

You have been hired by first citizens bank as a financial analyst. One of your first assignments is to analyze the present financial condition of Bradley Stores, Incorporated. You are provided with the following 2009 balance sheet and income statement information for Bradley ...
*March 21, 2011*

**Physics**

When you push a 1.82-kg book resting on a tabletop, it takes 2.30 N to start the book sliding. Once it is sliding, however, it takes only 1.46 N to keep the book moving with constant speed. Q1. What is the coefficient of static friction between the book and the tabletop? Q2. ...
*March 7, 2011*

**physics**

Driving in your car with a constant speed of 12 m/s, you encounter a bump in the road that has a circular cross-section. If the radius of curvature of the bump is 35 m, find the apparent weight of a 63-kg person in your car as you pass over the top of the bump.
*March 6, 2011*

**physics**

When you take your 1000-kg car out for a spin, you go around a corner of radius 57 m with a speed of 11 m/s. The coefficient of static friction between the car and the road is 0.88. Assuming your car doesn't skid, what is the force exerted on it by static friction?
*March 6, 2011*

**physic**

5900
*March 6, 2011*

**physic**

A 120-kg box is loaded into the trunk of a car. If the height of the car's bumper decreases by 20 cm , what is the force constant of its rear suspension? looking for N/m
*March 6, 2011*

**Physics**

To move a large crate across a rough floor, you push on it with a force at an angle of 21 below the horizontal, as shown in the figure. Find the acceleration of the crate if the applied force is 400 , the mass of the crate is 32 and the coefficient of kinetic friction is 0.31.
*March 6, 2011*

**Math/Algabra**

The perimeter of a triangle is 102. side b is twice as long as side A. and side C is three less than side B.. how long is each side.
*February 13, 2011*

**math-logs**

1. logaB = 2 and logbC = 4, evaluate logcA *the lowercase letters are bases ie. log(base a)B 2. solve for x: (log(base 2)x))^3 = log(base 2)x
*February 13, 2011*

**Kinematics**

A car has an acceleration of 2 m/s2. What is its speed 3 seconds after it starts moving?
*February 1, 2011*

**Math**

What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?
*January 18, 2011*

**Prove trig identity**

Thank you.
*January 9, 2011*

**Prove trig identity**

Sorry forgot the =1 on the end, ((sec^2)x-1)((csc^2)x-1)=1
*January 9, 2011*

**Prove trig identity**

secant squared... ((sec^2)x-1)((csc^2)x-1)
*January 9, 2011*

**Prove trig identity**

Prove the following trigonometric identity: (sec^2x-1)(csc^2x-1)=1
*January 9, 2011*

**PSY 202**

why is it important to considereach domain in the study of adult development?
*December 15, 2010*

**statistics**

A USU today survey found that of the gun owners surveyed 275 favor stricter gun laws. Test the claim that the majority (more than 50%) of gun owners favor stricter gun laws. Use a .05 significance level.
*December 7, 2010*

**chemistry HMWK help....... REPOST**

This is a stoiciometry question! You have the correct chemical equation already so: First calculate the number of moles of Pentane, than use stoiciometry to figure out the number of moles of CO2 produced and finally convert it to mass using the molar mass. Do you know how to ...
*November 11, 2010*

**PHYSICS !**

If i understand correctly, you mead that a the ball is in free fall after running off of the end of a ramp. That would mean that in the vertical direction the ball will accelerate (speed up) because of the force of gravity. In the horizontal direction it will have a constant ...
*November 11, 2010*

**math**

Are the beginign and end points of the race both at the intersection? or is the shop in the middle of the street?
*November 11, 2010*

**chemistry**

When I am writing a half-reaction with a corroding metal that is in Deaerated water, what can i assume there to be in the water that can show up in a half-reaction?
*November 11, 2010*

**chemistry**

When I am writing a half-reaction with a corroding metal that is in deionized water, what can i assume there to be in the water that can show up in a half-reaction?
*November 11, 2010*

**algebra**

the graph of the axis of symmettry of the parabola y=2x^2-11x+3 is best describe by which of the following equations?
*November 2, 2010*

**English**

I need a 450 word thesis about why buying a house is better than renting an apartment?
*October 30, 2010*

**chemistry**

How many moles of Cu are needed to react with 3.50 moles of AgNO3?
*October 30, 2010*

**physics**

A satellite orbits at an average altitude of h = 409 km. What is its orbital speed? Use REarth = 6370 km and mEarth = 5.98 x 10^24 kg
*October 25, 2010*

**chemistry**

thank you
*October 25, 2010*

**chemistry**

thank you :D
*October 25, 2010*

**chemistry**

Suppose that the microwave radiation has a wavelength of 10.8 cm. How many photons are required to heat 225 mL of coffee from 25.0*C to 62.0*C ? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J/(gK), as water over this temperature ...
*October 25, 2010*

**C programming**

A few questions, all involving "for" loops that I am unsure how to do (Thank you in advance for the help): Q1.) Write a table of conversions from Celsius to Rankin. Allow the user to enter the starting temperature and increment between lines. Print 25 lines in the ...
*October 18, 2010*

**Algebra**

What is the solution of -4x +1 > or equal to 7 I get these really confused on how to solve these. Thank you
*October 5, 2010*

**statistics**

Find z such that 20.3% of the standard normal curve lies to the right of z. 0.831 0.533 -0.533 -0.257 0.257
*September 26, 2010*

**Statistics**

How do frequency tables, relative frequencies, and histograms showing relative frequencies help us understand sampling distributions? A. They help us to measure or estimate of the likelihood of a certain statistic falling within the class bounds. B. They help us visualize the ...
*September 26, 2010*

**statistics**

Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. What is the probability that fewer than 45 ...
*September 26, 2010*

**physics**

A log is floating on swiftly moving water. A stone is dropped from rest from a 84-m-high bridge and lands on the log as it passes under the bridge. If the log moves with a constant speed of 3.6 m/s, what is the horizontal distance between the log and the bridge when the stone ...
*September 8, 2010*

**economics**

Explain how absolute advantage and comparative advantage differ?
*July 30, 2010*

**Economics**

Has the distribution of income in Canada become equal or more unequal?
*July 26, 2010*

**economics**

What is one of the major welfare challenges in Canada and how is it being tackled
*July 26, 2010*

**economics**

Why might it be appropriate for the government to allow a pharmaceutical company to have a monopoly in the production of a drug?
*July 20, 2010*

**geometry**

If an object is rotated clockwise 130° around a center and then counterclockwise 75° around the same center, what is the angle between the original image and second image?
*July 12, 2010*

**Confedertaion college**

Suppose that a scientific breakthrough leads to the discovery of a new cheap source of energy. What would be the effect of this invention in the short-run and in the long-run?
*June 22, 2010*

**IT**

identify at least two data structures that are used to organize a typical file cabinet. why do you feel it is necessary to emulate these types of data structures in a computer program. For what kind of work project would you want to use this type of program?
*June 1, 2010*

**Pre-cal**

Please determine the following limit if they exist. If the limit doe not exist put DNE. lim 2x^3 / x^2 + 10x - 12 x->infinity. Thanks.
*May 10, 2010*

**Pre-cal**

Please determine the following limits if they exist. If the limit does not exist put DNE. lim 2+6x-3x^2 / (2x+1)^2 x-> - infinity lim 4n-3 / 3n^2+2 n-> infinity I did lim 2+6x-3x^2 / (2x+1)^2 x-> - infinity (2+6x-3x²)/(4x²+4x+1) (2/x² + 6/x -3)/(4 + 4/x...
*May 9, 2010*

**pre-cal**

Given that lim x->c f(x)=6 and that lim x->c g(x)= -4, evaluate the following limit. Assume that c is a constant. The x in front of the f is confusing me. lim [xf(x) + 3 g(x)]^2 x->c
*May 8, 2010*

**Pre-cal**

Sketech the graph of the equation y^2+4y+2x+10=0. Identify the vertex, the focus and the equation for the directrix. Use the completing the square to put the equation into standard form as your first step. This is what I did. y^2 + 4y = -2x-10 y^2 + 4y + 4 = -2x-6 (y+2)^2= -2(...
*May 8, 2010*

**Pre-cal**

Find the vertex of y^2 + 4y + 2x +10 = 0. Use completing the square to put the equation into standard form as your first step. Could you show me how to get the vertex? Thanks
*May 6, 2010*

**Pre-Cal**

Given that lim x-> f(x)=6 and that lim x-> g(x)= -4, evaluate the following limit. Assume that c is a constant. lim -2f(x) - 12 / g(x). x->. I did -2(6) - (12/-4) -12 - (-3) -12 + 3 -9
*May 5, 2010*

**Precalculus**

Find the limit by direct substitution. A. lim x-> 5 square root cubed of x^2 -2x - 23. I replaced all of the x's with 5 and got -2. B. lim x-> -2 (4x^2 - 7x) / (6x + 10). I replaced all of the x's with -2 and got -15. Go to picturetrail and type in rowdy33. It&#...
*May 4, 2010*

**math**

this problem was written by someone who cooks their thanksgiving dinner in the microwave.
*April 6, 2010*

**algebra**

you don't have enough information. What is the cost of rent and utilities?
*April 5, 2010*

**Math**

Okay, forget it, looked at it again now that I'm awake and get it.
*April 5, 2010*

**Math**

I know that, I mean the 1 in the original 1/2L + 1.
*April 5, 2010*

**Math**

Okay, so... L(1/2L + 1) =420 L^2/2L+1=420 L^2 + 2L = 840 L^2 + 2L -840=0 factor (L-30)(L+28)=0 what happens to the +1?
*April 5, 2010*

**Math**

cool, thanks. I know that's the right answer, didn't know how to get there.
*April 5, 2010*

**Math**

why is the length x+1? shouldn't it be width=1/2L+1?
*April 5, 2010*

**Math**

The area of a rectangle is 420 sq. meters. The width is 1 meter longer than half the length, find the dimensions of the court. Not sure how to do this, although I know the answer.
*April 5, 2010*

**accounting**

biily is right, credit owner equity, debit the assets. Unless they're not listed, in which case there's no entry.
*April 4, 2010*

**geometry**

If a rectangle has an area of 64 square units and a length of 16 units, what is its width? If necessary, round your answer to two decimal places.
*February 25, 2010*

**college**

what is ADE/CLR?
*January 20, 2010*

**college**

what is ADE/CLR?
*January 20, 2010*

**biology**

consider two plants wuth the genotypes Rrtt and rrTt where red color (R) is dominant over white (r) and being tall (T) is dominant over being short (t). complete the punnett squares to determine the possible ganetes each parent could produce. using the punnet square (16 ...
*January 19, 2010*

**Chemistry**

If 5.27 mol of ethane (C2H6) undergo combus-tion according to the unbalanced equation C2H6 + O2 −! CO2 + H2O, how much oxygen is required? Answer in units of mol. Thanks!
*January 18, 2010*

**Chemistry**

What is the percent by mass of C in methyl acetate (C3H6O2)? The molecular weight of carbon is 12.0107 g/mol, of hydrogen 1.00794 g/mol, and of oxygen 15.9994 g/mol. Answer in units of %. Please work it out for me so I totally understand it. Thanks!
*December 6, 2009*

**j **

pictures of words
*December 3, 2009*

**math**

C=19
*November 16, 2009*

**Chemistry**

A selenium atom (Se) would form its most stable ion by the 1. loss of 2 electrons. 2. gain of 1 electron. 3. loss of 1 electron. 4. loss of 7 electrons. 5. gain of 2 electrons. Help please and tell me how you got the answer. Thanks!
*October 29, 2009*

**physics**

Object A, which has a mass m and a velocity Vo(i,) ̂ collides with object B, which has a mass 2m and velocity 1/2Vo(j.) ̂ Following the collision ,object B has a velocity of 1/4Vo(i.) ̂(a)Determine the velocity of object A after the collision.(b) Is the ...
*October 29, 2009*

**physics**

Object A, which has mass m and a velocity Voi,collides with the Object B,which has mass 2m and a velocity 1/2Voj.Following the collision ,object B has a velocity of 1/4Voi.(a) Determine the velocity of object A after the collision.(b) Is the collision elastic? If not, express ...
*October 29, 2009*

**physics**

Sorry, tha a is asking for coefficient and b, is asking for maximum distance?
*October 29, 2009*

**physics**

A force is given by Fx=Ax^-3, where A=8.0 N*m^3.(a) For positive values of x,does the potential energy associated with this force increase or decrease with increasing x?(You can determine the answer to this question by imagining what happens to a particle that is placed at ...
*October 28, 2009*

**Physics**

can you please explain the v=...part i don't understand what you mean by 24hrsinseconds?
*October 26, 2009*

**Chemistry**

Hey guys, been a long time since I have done this. Please show your work. Thanks a lot! How many grams do 3.6 × 10^20 atoms of sodium weigh? Answer in units of g
*October 25, 2009*

**Chemistry**

Oh, haha.. Thanks a lot. Very helpful. =]
*October 11, 2009*

**Chemistry**

Sorry, but I don't understand. Haven't done this in a while. I divided 137 J by 27.4 and then 80, but I get 0.05 as my answer. is that correct?
*October 11, 2009*

**Chemistry**

A 27.4 g sample of metal X requires 131 calories of energy to heat it from 10.0◦C to 90.0◦C. Calculate the specific heat of metal X. Answer in units of J/g ·◦ C. Any help would be greatly appreciated
*October 11, 2009*

**U.S past and present**

What is the U. S. past and present?
*September 30, 2009*

**math**

how would would u find f(3) and the lim f(x) x->3 of f(x)=(x^2-x-6) / (x-3)
*July 17, 2009*

**CRT205 Quiz**

Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
*February 27, 2009*

**Word Problem**

C(x) =16x+130 {x| 320 < x <480 525,000/100 5,250=16x+130 16x=5,250-130 16x=5,120 x=5,120/16 x=320 781,000/100 7,810=16x+130 16x=7,810-130 16x=7,680 x=7,680/16 x=480 Then if that is true then this is the solution? I think I got it!
*February 18, 2009*

**Word Problem**

Assume that the mathematical model C(x) = 16x + 130 represents the cost C, in hundreds of dollars, for a certain manufacturer to produce x items. How many items x can be manufactured while keeping costs between $525,000 and $781,000? Thanks in advance!
*February 18, 2009*

**Engineering**

gang rape
*February 12, 2009*

**Engineering**

anal beads
*February 12, 2009*

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