Wednesday

May 4, 2016
Total # Posts: 2,476

**chemistry**

What is the delta Hvap of a liquid that has a vapor pressure of 612 torr at 77.6 degrees C and a boiling point of 94.9 degrees C at 1 atm
*March 29, 2015*

**chemistry**

What is the delta Hvap of a liquid that has a vapor pressure of 612 torr at 77.6 degrees C and a boiling point of 94.9 degrees C
*March 29, 2015*

**fluid mechanics**

A dam has been constructed of a large cylindrical pipe 10ft in diameter an 3ft long. Calcualte the net vertical and horizontal components of the fluid(water) force on this dam.
*March 22, 2015*

**fluid mechanics**

A dam has been constructed of a large cylindrical pipe 10ft in diameter and 3ft long. Calculate the net vertical and horizontal components of the fluid(water) force on this dam.
*March 22, 2015*

**chemistry**

A proton in a linear accelerator has a de Broglie wavelength of 138pm . What is the speed of the proton?
*March 20, 2015*

**economic**

1) Explain the meaning of the notation [a, b, r, w] used in Bayes Theorem 2) Explain how the (r, w) probabilities determine the quality of information: for perfect, worthless, and imperfect better than pure chance information
*March 19, 2015*

**Finance**

As an investor, you are considering an investment in the bonds of the Conifer Coal Company. The bonds, which pay interest semiannually, will mature in 8 years, have a coupon rate of 9.5% on a face value of $1,000. Currently, the bonds are selling for $872. a. If you required ...
*March 10, 2015*

**chemistry**

how many liters of SO2 measured at STP are produced in the reaction of 6.27 kilogrrams with 234 Liters of O2 at 220 degrees celsius and 2 atm?
*March 8, 2015*

**Math**

Help plzzzz😖😖😖😖😖
*March 2, 2015*

**Math**

Sam rolls a strike in 6 of the 10 frames of bowling What is the experimental probability that Sam will roll a strike in the first frame of the next game ? Explain why a number cube would not be a good way to simulate this situation Please help !!!!😖
*March 2, 2015*

**math**

The coach uses a scale drawing of the soccer field. the diagram uses a scale of 1/4 inches : 30 feet.What are the actual dimensions? What is the length and width of the field? What us the area of the field?
*February 26, 2015*

**precalculas**

-x+4x-2 list all levels of concavity
*February 24, 2015*

**Phsyics**

How much heat is required to raise the temperature of a 4.1-kg block of steel by 64 K? (The specific heat of this steel is 450 J/kg · K.)
*February 18, 2015*

**science**

What effects or potential effects do technologically based communication modalities between patients and health carer providers and between health care providers only have on health care cost
*February 16, 2015*

**Physics**

Two objects of same material are travelling near you. Object A is a 1.5 kg mass traveling 13.5 m/s; object B is a 2 kg mass traveling 5 m/s. Which object would make you feel worse if you are hit by it? 1. B 2. A 3. Unable to determine 4. the same
*February 14, 2015*

**government**

what court hears specific cases?
*February 14, 2015*

**criminal investigations**

why advances are paramount to the historical evolution of criminal investigations
*February 11, 2015*

**Physics**

Please someone help me. This is due in 30mins
*February 9, 2015*

**Physics**

Using the conservation of momentum law.
*February 9, 2015*

**Physics**

How do I find the recoil velocity of the earth immediately after the popper popped?
*February 9, 2015*

**Physics**

A constant force is exerted for a short time interval on a cart that is initially at rest on an air track. This force gives the cart a certain final speed. Suppose we repeat the experiment but, instead of starting from rest, the cart is already moving with constant speed in ...
*February 6, 2015*

**ela**

Is there such a word as poetries?
*February 5, 2015*

**Algebra**

Sarah mixes cashews that cost $9.00 per pound with 50 lb of peanuts that cost $5.00 per pound. How many pounds of cashews should she mix to make a nut mixture that cost $6.50 per pound?
*February 4, 2015*

**Algebra 1B**

Explain and provide an illustrative example of factoring a trinomial.
*February 4, 2015*

**Algebra 1B**

Factor the following equation: 3y^3-9y^2+4y-12 Thanks for the help!
*February 4, 2015*

**Algebra 1B**

Find the Greatest Common Factor of: 6x^4-12x^3 Thanks for your help!
*February 4, 2015*

**Math**

.85km/s=m/min
*February 1, 2015*

**fin**

what are the reason behind m&a waves of the 1980 and 1990
*January 30, 2015*

**Math**

What is -a^-2 if a equals -5
*January 28, 2015*

**law**

how they can determine whether or not the jury's decision was right or wrong. Does it come down to matter of opinion by the judge? Is it biased? How does that work with posttrial motions.
*January 24, 2015*

**Law**

I need help understanding diversity of citizenship
*January 23, 2015*

**law/history**

when the supreme court makes a law is there a way to appeal their decision?
*January 23, 2015*

**physics**

A boy on a 1.9 kg skateboard initially at rest tosses a(n) 8.0 kg jug of water in the forward direction. If the jug has a speed of 2.7 m/s relative to the ground and the boy and skateboard move in the opposite direction at 0.65 m/s, find the boy’s mass. Answer in units of kg
*January 23, 2015*

**physics**

A(n) 0.364 kg soccer ball approaches a player horizontally with a speed of 19.7 m/s. The player illegally strikes the ball with her hand and causes it to move in the opposite direction with a speed of 22.4 m/s. What is the magnitude of the impulse delivered to the ball by the ...
*January 23, 2015*

**Law**

Is there a limit to the different types of arbitration one can go through before taking a case to trial? My answer is no. why? because if you don't agree the first time when seeking a arbitration than you'r chances of coming to a conclusion are again aren't high. ...
*January 22, 2015*

**LAW**

what's the easiest way to explain the sliding scale.
*January 22, 2015*

**LAW**

Once a supreme court makes their decision and it becomes law is there anyway of appealing their decision since they are the "top dog" in the courts?
*January 22, 2015*

**Math**

Sarah was trying to figure out her grades for her math course. she only knew the grade of 4 of the tests she had taken, However the class had taken 5 tests total. She scored a 94, 67, 83, and 93. If Sarah ended up with a grade of 90, what did she get on the 5th and final test...
*January 21, 2015*

**Math**

Thomas was making iced tea with his mother. the recipe called for 1/2 a cup of sugar. However, Thomas and his mother wanted to cut the recipe in half. How much sugar should they add into the recipe? Would the answer be 1/4.
*January 21, 2015*

**Math**

Kara Maria poured herself a glass of 16 ounces of water. She drank 1/2 of her water in the morning. At lunch time she took the remaining water and drank 1/2 of that. How much water did she have left/ Would my answer be 1/4.
*January 21, 2015*

**polynomial**

Find the polynomial in X where zeros are -2, -1 and 3. Please someone help me with this. Thanks
*January 19, 2015*

**Algebra 1a**

Will someone please help me with the answer to the following: Simplify x^2*x^3*x^4 Thanks!
*January 18, 2015*

**Algebra 1a**

Will someone please help me with the answer to the following: Simplify: (xy)^-3/(x^-5y)^3
*January 18, 2015*

**Algebra 1a**

Simplify (xy)^-3/(x^-5y)^3
*January 18, 2015*

**Mat 116 - Algebra**

I need to simplify this equation
*January 18, 2015*

**Mat 116 - Algebra**

Simplify (2x)^3 Thanks for the help!
*January 18, 2015*

**math**

how to slove 35cents:$2.25 in ratio
*January 14, 2015*

**algebra**

a ten foot board has been cut in to 2 pieces, one of the board is x feet long express the other board in terms of x
*January 11, 2015*

**Physics **

The linear impulse delivered by the hit of a boxer is 97.7 N·s during the 0.368 s of contact. What is the magnitude of the average force exerted on the glove by the other boxer? Answer in units of N.
*January 11, 2015*

**Algebra 1a**

I am working with Systems of Linear Inequalities and need to find the point where the lines meet to label my graph. -9x-3y<27 and 8y+9y>=72 Thanks!
*January 10, 2015*

**Algebra 1a**

-3x-7y<21 and -7x-9y<63 I need to label the intersection on the graph where these two points meet
*January 8, 2015*

**physics**

A bungee jumper of mass 75 kg uses a bungee cord with a relaxedlength of 50 m and jumps from a bridge that is 170 m above the ground. What elastic force constant is necessary for the bungee cord in order for him to jump safely. I have no idea what to do or even start this ...
*January 4, 2015*

**math**

9 more than 5 times a number is that number increased by 45
*December 9, 2014*

**math**

Nine more than five times a number is that number increased by 45
*December 9, 2014*

**Goverment**

The governor of Texas has A. strong formal powers granted by the Texas Constitution. B.few formal powers, so the office is one of the weakest of the chief executives in the United States. C.the power to appoint all of the other officials in the executive branch. D.the power to...
*December 8, 2014*

**finacial**

Charlie Company is expected to grow at an annual rate of 6% indefinitely. The return on similar stocks is currently 11%. Charlie board of directors declared a dividend of $1.85 yesterday. What should a share of Charlie Company sell for?
*December 8, 2014*

**general question**

Prospective employers can legally select employees based on the applicant's? a.age b.education c.disabilities d.gender I am thinking B is the correct choice?
*December 6, 2014*

**Pyhsics **

A) On planet X, an object weighs 19.2 N. On planet B where the magnitude of the free-fall acceleration is 1.17 g (where g = 9.8 m/s2 is the gravitational acceleration on Earth), the object weighs 34.9 N. The acceleration of gravity is 9.8 m/s2 . What is the mass of the object ...
*November 28, 2014*

**Statistics**

For the following set of scores, fill in the cells. The mean is 70 and the standard deviation is 8. Raw score Z score 68.0 ? ? –1.6 82.0 ? ? 1.8 69.0 ? ? –0.5 85.0 ? ? 1.7 72.0 ?
*November 26, 2014*

**probation and parole**

Halfway houses: A. can be “halfway in” or “halfway out.” B. can be used for probation/parole violators. C. often encounter community opposition. D. all of the above My answer: I believe it is A The "interstate compact" provides for: A. offender ...
*November 25, 2014*

**probation and parole**

Yes halfway houses is D I finally found it in my text book :) it's all of the above.
*November 25, 2014*

**probation and parole**

For the halfway houses then I think it's D
*November 25, 2014*

**probation and parole**

Oh okay! what about this : The "interstate compact" provides for: A. offender employment. B. travel expenses for interstate travel. C. federal agents to apprehend absconders. D. none of the above My answer: D
*November 25, 2014*

**probation and parole**

Thank you ^^ !
*November 25, 2014*

**probation and parole**

Halfway houses: A. can be “halfway in” or “halfway out.” B. can be used for probation/parole violators. C. often encounter community opposition. D. all of the above My answer: I believe it is A
*November 25, 2014*

**probation and parole**

1. Alcoholics Anonymous (AA): A. recognizes that preaching abstinence is most effective in helping alcoholics. B. was founded by two men who were alcoholics. C. can be quite costly to participants. D. none of the above 2. All of the following statements about the therapeutic ...
*November 25, 2014*

**Math. (Check Answers) STUCK**

Thanks @Ms.Sue So the answer will be positve.. and did I get the first one incorrect?
*November 25, 2014*

**Math. (Check Answers) STUCK**

HI, I'm stuck on two questions(: Round the number to the thousandths place. 97093.113469 Is it 97093.113 < -- ? 97093.112 97093.114 97000 Without multiplying, determine the sign of the product. (19)(-2)(37)(-0.8)(112) Postive Negative <-- ? The product is zero
*November 25, 2014*

**chemistry**

Find the percentage of water in Na2CO3*2H2O?
*November 19, 2014*

**chemistry**

9.03 of Mg combine completely with 3.48g of N to form compound. what is the percent composition of each element in this compound?
*November 19, 2014*

**chemistry**

29.0g Ag combine completely with 4.30g S to form a compound. what is the percent composition of each element in this compound
*November 19, 2014*

**math**

Patricia donated 1 pint of blood to the blood bank. The lab assistant divided Patricia’s blood equally into 3 bags. How much blood was in each bag
*November 18, 2014*

**math**

4 multiple choice questions with 3 possible answers. What is the probability of answering the first, third, and fourth question correctly? 1/3 x 1/3 x 1/3 1/3 = 1/81
*November 16, 2014*

**Business**

Thank you again Ms. Sue!
*November 16, 2014*

**Business**

The best feature of an organizational structure that evolves naturally is its? A.economy. B.clarity. C.practicality. D.use of staff positions My best guess is D
*November 16, 2014*

**Business**

B and A were my best guess. The descriptions seemed a like. Thank you!
*November 16, 2014*

**Business**

A new business has been launched with four employees who work for the entrepreneur-owner. As the owner contemplates growth in sales and personnel, she realizes that the next step of growth will involve the special problem of? A.intermediate supervision B.formal policies C....
*November 16, 2014*

**Physics**

The two masses (m1 = 5.0 kg and m2 = 3.0 kg) in the Atwood's machine shown in the figure are released from rest, with m1 at a height of 0.91 m above the floor. When m1 hits the ground its speed is 1.0 m/s. Assume that the pulley is a uniform disk with a radius of 12 cm. ...
*November 14, 2014*

**Math**

How would you write the following exponential form to logarithmic form: 4^y= (1/64) My answer is: log4(1/64)=y. Am I corret?
*November 13, 2014*

**Multiple regression**

1) Estimate a multiple regression equation to predict the price of houses in a given community. Employ all available explanatory variables. Is there evident of of multi-collinearity in this model? Explain your response and the associated implications. 2) The owner of a ...
*November 10, 2014*

**algebra**

Please Help Me Check My Work :) 1) Find the 5th term of - f(n)= 3(n-3) My answer- -279 2) Find the third term if the first term is 4 - f(n)= 2f(n-1)+2 My answer- 16 3) Find the third term using the explicit rule - f(n) 4-n/n+3 My answer- 1/6 4) Recursive Function- 1, -2, -5...
*November 8, 2014*

**Science **

What is the number of moles of HCl neutralized by .1 M NaOH. When NaOH has 14.24ml
*November 7, 2014*

**Algebra**

When a softball player swings a bat, the amount of energy E(t), in joules, that is transferred to the bat can be approximated by the function E(t) = −279.67t2 + 82.86t where 0 ¡Ü t ¡Ü 0.3 and t is measured in seconds. According to this model, what ...
*November 3, 2014*

**Algebra**

The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t2 + 32t + 240. (a) Find the maximum height of the projectile. ______ ft (b) Find the time t when the ...
*November 3, 2014*

**math**

if the inequality is: (x+5/x-2)>0 . "x-5 over x-2 greater or equal to 0". What would be the solution? a.(-infinity sign, -5] U (2, infinity sign) b.(-5,2) c.(-infinity sign, -5) U [2, infinity sign) d.[-5,2] My answer was C. Am I correct?
*October 31, 2014*

**SCIENCE**

a horticulturist wants a plant that produces flowers with a certain size and fragrance but is not aware of any one plant having all these traits. the quickest way she could achieve her goal would be to apply the process of ?
*October 30, 2014*

**Math/Physics**

The potential at the surface of a sphere (radius R) is given by V_0 = k cos 3theta where k is constant. Find the potential inside and outside the sphere as well as the surface charge density (lower case sigma(theta)) on the sphere. (assume there is no charge inside or outside ...
*October 30, 2014*

**Math/Physics**

My question is this: The potential at the surface of a sphere (radius R) is given by V_0 = k cos 3theta where k is constant. Find the potential inside and outside the sphere as well as the surface charge density (lower case sigma(theta)) on the sphere. (assume there is no ...
*October 30, 2014*

**Chemistry**

how to multiply 2.45 mol x 6.02x10^23
*October 26, 2014*

**Math**

than you again steve! I know I should have said "2" I am sorry. Thank you for correcting me. I appreciate your help.
*October 24, 2014*

**Math**

Using the Descartes Rule of Sign count the number of sign changes of f(-x) and determine the number of negative real zeros. 1. f(x)=x^3+x^2-10x-24 My answer: A few signs due change but not enough to say they changed." 0 sign changes of f(-x), which means f(x) has 0 ...
*October 24, 2014*

**Math**

Thank you Steve for your response. I appreciate it very much.
*October 24, 2014*

**Math**

Using the Descartes Rule of Sign count the number of sign changes of f(x) and determine the number of positive real zeros. 1. f(x)=x^3+x^2-10x-24 My answer: because the signs don't change the answer would be: "0 sign changes of f(x), which means f(x) has 0 positive ...
*October 24, 2014*

**GLOBAL HISTORY 10 REGENTS!!**

Who (what group) was responsible for making moderate reforms during the French Revolution?
*October 23, 2014*

**Alegbra**

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature, °F af 40 760 60 ...
*October 23, 2014*

**Algebra**

Find an equation of the line that satisfies the given conditions. Through (5, 3) and (4, 7)
*October 22, 2014*

**Algebra**

There were 39,000 desktop publishing jobs in the United States in 2000. It has been projected that there will be 64,000 desktop publishing jobs in 2010. (a) Using the BLS data, find the number of desktop publishing jobs as a linear function of the year. N(t)=_____
*October 22, 2014*

**Algebra**

Find the equation of the line, in slope-intercept form, that satisfies the given conditions. The graph is perpendicular to the graph of y = 5x − 9 and passes through the point whose coordinates are (3, −1).
*October 22, 2014*

**Math**

City Cellular purchased $28,900 in cell phones on April 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to $650. a. What is the net amount due if City Cellular sends the manufacturer a partial payment of $5,000 on May...
*October 22, 2014*