Saturday

February 13, 2016
Total # Posts: 985

**physics**

This is what I found.... When the car is at the top of the track the centripetal force consists of the full weight of the car. mv2/r = mg Applying the conservation of energy between the bottom and the top of the track gives (1/2)mv^2 + mg(2r) = (1/2)mv0^2 Using both of the ...
*October 8, 2010*

**Math**

Sheila's age is two years more than twice Nicole's age. The sum of their ages is the same as Steven's age. If Steven's age is ten years less than five times Nicole's age, ,find the age of each. Write a verbal model!
*October 6, 2010*

**english**

Examples of personal interaction with a friend or family member about personal finance or credit cards. This is an emergency!!! Help please
*September 24, 2010*

**6th grade science**

Science - kk, Friday, January 2, 2015 at 2:38pm 1. a 2. d 3. a 4. a those are the correct answers i got 4/4 with them
*September 17, 2010*

**geometry**

raise pq and qr are perpendicular point s lies in the interior of angle pqr if measure of the angle pqs equals 4=7a and the measure of angle sqr = 9+4a find the measure of angle pqs and sqr
*September 8, 2010*

**Anatomy and Physiology**

Each nerve impulse begins in the dendrites of a neuron's. the impulse move rapidly toward the neuron's cell body and then down the axon until it reaches the axon tip. a nerve impulse travels along the neuron in the form of electrical and chemical signals. Acetylcholine...
*July 31, 2010*

**Calculus**

Application of Derivatives and Integrals: A sign 3 feet high is placed on a wall with its base 2 feet above the eye level of a woman attempting to read it. How far from the wall should she stand to get the best view of the sign, that is, so that the angle subtended at the ...
*July 11, 2010*

**Calculus**

A sign 3 feet high is placed on a wall with its base 2 feet above the eye level of a woman attempting to read it. How far from the wall should she stand to get the best view of the sign, that is, so that the angle subtended at the woman’s eye by the sign is a maximum?
*July 11, 2010*

**math**

Thanks for the help!
*June 2, 2010*

**math**

Solve for x= x^2 + 45= 6x
*June 2, 2010*

**Information Science**

how do I begin the project
*June 1, 2010*

**Math**

Simple interest investment made for a period of 4years to R7800 with an initial investment of R4000 for this investment
*May 29, 2010*

**Compters and software in a bussiness**

How are computers and software aplications utilized in a bussiness setting to solve bussiness problems?
*May 21, 2010*

**Geo**

For questions 33 and 34, write the equations for the lines parallel and perpendicular to the given line through the given point (one point for each equation). x - 3y = 9 through (2, -1)
*May 21, 2010*

**intermidate alegebra**

ac Method 15t^ -17t-4 ac=15*4=60 This the ac Method can you help me finished this problem
*May 12, 2010*

**math**

y X 8 = 72
*May 10, 2010*

**english**

Did you know that Paul Revere rode through the countryside calling men to arms class? where does the comma belong? how can i rewrite this sentence with a comma?
*May 10, 2010*

**Chemistry**

How do you find pKa?
*May 5, 2010*

**algebra**

-21+3z/2 divide 121z-847/4
*May 4, 2010*

**algebra**

Thank you so much!
*May 3, 2010*

**algebra**

Bob mosw his lawn in 3 hours, Jane can mow the same lawn in 5 hours. How much time would it take for them to mow the lawn together?
*May 3, 2010*

**Pre-algebra**

Factor the expression 14+21c
*April 21, 2010*

**commas and run on sentences**

You got it
*April 21, 2010*

**Physics**

a basketball player is trying to make a half-court ump shot and releases the ball at the height of the basket. assuming that the ball is launched at 51 degrees, 14 m from the basket, what speed must the player give the ball?
*April 18, 2010*

**college**

Answer the problems below and show or explain how you arrived at your final answer. 1. You sell premium toasters and are making a pricing decision. At a price of $100 (or “p = $100”) you predict that you can sell 30 of these premium toasters at your Scottsdale, ...
*April 13, 2010*

**Algebra1**

a company sells brass and steel machine parts. One shipment contain 3 brass and 10 steel parts and cost 48.00. A second shipment contain 7 brass and 4 steel parts and cost 54.00. Find the cost of each type of machine part. How much would a shipment containing 10 brass and 13 ...
*April 10, 2010*

**math 156**

Indicate whether the sequence is arithmetic, geometric or neither 10,12,22,32,42.....
*April 7, 2010*

**calculus-limits??**

i keep on doing something wrong on this problem,i guess im forgetting to add or subtract some number. use f'(x)=lim h-->0 f(x+h)-f(x)/h to find the limit: lim h-->0 sin^(3)4(x+h)-sin^(3)4x/h
*March 24, 2010*

**math**

What are the number in the magic square of 4 by 4 if the magic number is 38?
*March 16, 2010*

**Chemistry**

Christ lover, you're a life saver!!!
*February 15, 2010*

**Art history**

Can you tell me if these sculptures have open or closed contour? I can't post the link but if you search the name and the numbers it should show up. Sculpture 1: Mother and Child [1979.206.121] Sculpture 2: Virgin and Child [33.23]
*February 3, 2010*

**Intro to art history**

I have to write a paper comparing two art sculptures. I have write if it's an open or closed contour but I don't know what that means.
*February 3, 2010*

**Accounting**

What kind of companies (industries) have negative cash flow from investing activities? And what kind of companies have positive cash flow from investing activities?
*January 26, 2010*

**chemistry**

describe the general characteristics of metals, nonmetals, and metalloids.
*January 24, 2010*

**Algebra**

Thank you for your help.
*January 21, 2010*

**Algebra**

John's insurance company will replace his car if repair costs exceed 80% of the car's value. The car recently sustained $8000 worth of damage, but it was not replaced. What was the value of his car?
*January 21, 2010*

**physics**

A tin can is filled with water to a depth of 30 cm. A hole 11 cm above the bottom of the can produces a stream of water that is directed at an angle of 34° above the horizontal. (a) Find the range of this stream of water. (b) Find the maximum height of this stream of water.
*January 14, 2010*

**physics**

Water flows in a cylindrical, horizontal pipe. As the pipe widens to twice its initial diameter the pressure in the pipe changes. Calculate the change in pressure between the wide and narrow regions of the pipe. Give your answer as an expression in terms of the density of ...
*January 14, 2010*

**ITALIAN**

hello, can anyone translate this? could be a poetic-like translation. i just can't seem to make sense out of this, when i use a dictionary or an online translator. help please! thank you. "Si che morte Si che morte e lontananza Provi incor pena infinita che sol perde ...
*January 8, 2010*

**language arts**

i need help with my novel : watership down by richard adams
*January 7, 2010*

**german**

these are SO helpful. thank you so much. i will definitely check out the website. thank you
*December 31, 2009*

**GERMAN**

Wie war das in der Kindheit? 1. Als ich Kind war, ___ ich immer radfahren. will woll wolle wollte wollen 2. Als du Kind warst, ___ du nicht allein über die Straße gehen. darfte durfte darfst durftest dürftest 3. Als Monika Kind war, ___ sie nicht, daß es ...
*December 30, 2009*

**german**

Reiny, thank you. is there anyway you can tutor me/ help me online with my german? please let me know
*December 30, 2009*

**german**

Mein Mitbewohner hat alles umgestellt! Gestern waren die Musikbozen hinter (1)_____ Sofa. Aber Jurgen hat sie unter (2)____ Tisch gestellt. Das Telefon war auf (3)_____ Tisch. Aber Juergen hat es an (4)____ Wand gehaengt. Die Pflanze war in (5)_______ Ecke, aber jetzt ist sie ...
*December 30, 2009*

**physics**

A chair of weight 150 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 36.0 directed at an angle of 40.0 below the horizontal and the chair slides along the floor.Using Newton's laws, calculate , the magnitude of the ...
*December 14, 2009*

**physics**

A chair of weight 150 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 36.0 directed at an angle of 40.0 below the horizontal and the chair slides along the floor.Using Newton's laws, calculate , the magnitude of the ...
*December 14, 2009*

**algebra**

Thanks for this...I am so confused on it?!?
*December 9, 2009*

**algebra**

Thank you, but how does the x play into it,that is where I was confused at?
*December 9, 2009*

**algebra**

find the slope: x+5y=10
*December 9, 2009*

**algebra**

Thanks, I got it.
*December 7, 2009*

**algebra**

how do I do that?
*December 7, 2009*

**algebra**

a roof rise 2.7 feet vertically and 8.2 feet horizonatally. what is the grade of the roof?
*December 7, 2009*

**algebra**

Thank you!
*December 7, 2009*

**algebra**

find the slope for 8x-y=8
*December 7, 2009*

**math**

don't no
*November 17, 2009*

**Misc.**

What is the penultimate day of the year? Dec. 30th?
*November 13, 2009*

**Math-Probability**

Thank you, that helped out a lot!
*November 12, 2009*

**Math-Probability**

A deli offers its cheese sandwich with various combinations of mayonnaise, lettuce, tomatoes, pickles, and sprouts. 8 types of cheese are available. How many different cheese sandwiches are possible?
*November 12, 2009*

**math**

this fraction as an equivilent fraction in its lowest term 42 over 105
*November 11, 2009*

**History**

How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia,
*November 6, 2009*

**MGMT/216**

What do you consider to be a source of ethics? What environmental factors contribute to ethical behavior? How are business ethics developed? Explain your answer
*November 4, 2009*

**Epidemiology**

To examine the association between high blood sugar and glaucoma, a group of 3154 people was observed for a period of 20 years in the NYC metropolitan area. The study participants were middle age epidemiologists working in the tri-state area. Participants received a free ...
*November 2, 2009*

**Algebra**

she feels sooo good around the waist can you help me
*October 25, 2009*

**Geometry**

Will any kite tessellate the plane? why or why not?
*October 24, 2009*

**Geometry**

Thanks! That makes a lot of sense!
*October 20, 2009*

**Geometry**

If rectangle ABCD has a larger area than rectangle EFGH, does it follow that ABCD must have a perimeter larger than that of EFGH? Why or why not.
*October 20, 2009*

**math**

Geometry, I will put that in the subject box next time!
*October 14, 2009*

**math**

thanks to both of you for your help!
*October 14, 2009*

**math**

Will a non-regular acute triangle tessellate the plane? How do you know?
*October 14, 2009*

**Geometry**

Will a non-regular acute triangle tessellate the plane?
*October 12, 2009*

**Geometry**

The length of a median of a triangle is 36 units. How many units from the vertex is the median?
*October 7, 2009*

**Math**

If ab U ac is a line, what is true about A, B, and C?
*October 7, 2009*

**Physics**

6.34
*October 6, 2009*

**Math **

Thanks for the site. Is this the right formula: P(-1 < z < 1) = 0.683
*October 1, 2009*

**Math **

Suppose scores on an IQ test are normally distributed. If the test has a mean of 100 and a standard deviation of 10, what is the probability that a person who takes the test will score between 90 and 110?
*October 1, 2009*

**SOCIAL STUDIES**

Thanks the summary was a great help!
*September 26, 2009*

**SOCIAL STUDIES**

Thanks for the link, however, It is very hard to understand. Do you know where I can find it in kids terms?
*September 26, 2009*

**SOCIAL STUDIES**

I am trying to understand what congress cannot do, but its confusing.
*September 26, 2009*

**EARTH SCIENCE**

No it is an oblate spheroid
*September 21, 2009*

**EARTH SCIENCE**

I need four reasons the layers of the egg compare to the earth. so I have three 1. The shell compares to the crust 2. The white compares to the Mantle 3. The yolk is the core Then they also want : describe two other ways the egg compares to the earth. Can't think of any ...
*September 21, 2009*

**science**

its a guess
*September 17, 2009*

**Pre-Algebra**

why is there those stupid spaces??????
*September 15, 2009*

**social studies 11**

what attitudes do you think contributed to support for the evacuation of japanese-canadians during world war II? Give evidence
*September 11, 2009*

**algebra**

yess
*September 11, 2009*

**please edit**

allright thanks so much!
*September 11, 2009*

**please edit**

At the age of 12 I had developed a great interest in the art of Acting. Acting has always been a passion and a part of me. What I like about acting is that you can go on a stage or in front of a camera without worrying about what people will think because chances are you'...
*September 11, 2009*

**us history**

I was working on a US History crossword worksheet titled The English Colonists Arrive. I am trying to find the answer to the sole right to trade in an area. This wksht is due tomorrow.
*September 9, 2009*

**math**

if rs=8y +4, st =4y,and rt=15y-9. find value of y. find rs, find st, find rt
*August 26, 2009*

**math**

if rs=3x+1, st=2x-2, and rt= 64. find value of x. find rs. find st.
*August 26, 2009*

**math**

find counterexample the quotient of two proper fractions is a proper fraction
*August 18, 2009*

**Math**

the number on the right of the other number is greater
*August 18, 2009*

**Algebra**

A PIECE OF TIN IS TWICE AS LONG AS IT IS WIDE. IT IS TO BE MADE INTO A BOX BY CUTTING 2 INCH SQUARES FROM EACH CORNER AND FOLDING UP THE SIDES . FIND THE DIMENSIONS OF THE PIECE OF TIN IF THE VOLUME OF THE BOX IS 320 CUBIC INCHES
*June 22, 2009*

**Alegebra**

Given the function K described by K(x)=x+16. find each following. K(0)=16 K(-13)=3 K(-14)=2 K(8)=24 K(c+17)=C+33 Please check this problem see if is right.
*March 16, 2009*

**Math**

If f(x) = 2 \ln(8 x+4\ln(x)) find f'(2)
*March 15, 2009*

**CHEMISTRY**

A titration of 15.0 cm3 of household ammonia, NH3, required 38.57 cm3 of 0.78M HCl. Calculate the molarity of the ammonia. PLEASE SHOW ME HOW TO SOLVE THIS. Thank you very much!
*March 15, 2009*

**CHEMISTRY**

Calculate the volume of 0.6M HNO3 necessary to neutralize 28.55 cm3 of 0.45M KOH. PLEASE SHOW ME STEPS SO THAT I CAN UNDERSTAND HOW TO SOLVE THIS PROBLEM. THANK YOU.
*March 15, 2009*

**Chemistry (urgent!)**

A titration of 15.0 cm3 of household ammonia, NH3, required 38.57 cm3 of 0.78M HCl. Calculate the molarity of the ammonia. Please show steps so that I may unders tand how solve this. Thank you
*March 15, 2009*

**alegbra**

Find the slope, it it exists x+7y=14 x=7y/14=2 check this problem for me please
*March 6, 2009*

**Alegebta**

Find the slope if its exists Y=-7X+3 7x-4 x=11 Is this right.
*March 4, 2009*