Saturday

February 28, 2015

February 28, 2015

Total # Posts: 115

**chemistry**

What is the molality of 67.1g of Nano3 in 2.5l of water i get the molar mass of nano3 and divide it by the 67.1g and multipy it by 2.5l
*December 12, 2014*

**chemistry**

calculate the energy required to raise the temp of 72g of water from 50c tp 150
*December 11, 2014*

**chemistry**

is finding the molality and molarity the same concept
*December 11, 2014*

**chemistry**

IS IT POSSIBLE IF YOU CAN DO THIS ONE FOR ME SO I CAN DO THE REST ON MY OWN SO I HAVE A IDEA OF WHAT TO DO AND WILL BE EASIER TO UNDERSTAND
*December 11, 2014*

**chemistry**

how much heat is required to raise a 54g sample of water from -20 celsius to 90 celsius explain
*December 11, 2014*

**chemistry**

Dr Bob i would really like to thank you for your time this has greatly helped my learning in school
*December 11, 2014*

**chemistry**

How do u tell of a solute is polor or non polar based on what
*December 11, 2014*

**chemistry**

how many moles of solute are contained in 18.5ml 2.5m CaCL2
*December 11, 2014*

**chemistry**

is finding the molality and molarity the same concept
*December 11, 2014*

**chemistry**

it wud help alot if you can plug in and show how
*December 11, 2014*

**chemistry**

What is the ppm of 4.50mg of ddt in 10kg of seal fat?
*December 11, 2014*

**chemistry**

Increasing pressure does what to solubility. Increasing surface area? increasing temp?
*December 11, 2014*

**algebra2**

Tim has a pool slide that makes an angle of 25 with the water the top of the slide stands 4.5feet above the surface of the water A:how far out into the pool will the slide reach B:The slide makes a straight line into the water. How long is the slide
*December 10, 2014*

**algebra2**

At a hot air balloon festival jim watches a hot air balloon rise form a distance of 200 yards. A:From jims position the ballon seen to hover at angle of elevation of 50 What is the height of the ballon B:After a while the ballon seems to hover at an angle of 75 how high is it ...
*December 10, 2014*

**algebra2**

A kite string is 102 feet long. the angle between the kite string and the ground is 54.9. how high is the kite
*December 10, 2014*

**please check my english**

all of those answers are wrong you will get a F
*December 4, 2014*

**Chemistry**

I cant understand anything
*December 3, 2014*

**algebra2**

MS TAn bought a bmw for 62,000. The price of a bmw depreciates at the rate of 12% per year. How much will the saving account have after 30 years
*November 19, 2014*

**algebra2**

a saving account with an initial balance of $15000 grows at 1.33percent per year compounded continuously. How much will the saving account have after 30 years?
*November 19, 2014*

**calc**

Each of the regions A, B, and C bounded by f(x) and the x-axis has area 5. Find the value of ∫2 [f(x)+3x^2+2]dx. −4 I know to solve I can find the antiderivative of the equation but im not sure how to do this because of the f(x) in the parentheses.
*November 16, 2014*

**physics**

Two blocks with masses m1 = 13.4 kg and m2 = 74.2 kg, shown in the figure, are free to move. The coefficient of static friction between the blocks is 0.55 but the surface beneath m2 is frictionless. What is the minimum force F required to hold m1 against m2?
*October 21, 2014*

**math**

Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
*June 27, 2014*

**Math **

If 1/3 of. My salary is in one bank, 1/5 in another and 1/6 in another how much I have left
*March 23, 2014*

**health**

its not C.
*March 3, 2014*

**Statistics**

Suppose 5 cards are drawn, without replacement, from a standard bridge deck of 52 cards. Find the probability of drawing 4 clubs and 1 non- club.
*December 1, 2013*

**kjkj**

550.341
*November 6, 2013*

**Physics 101**

49
*October 27, 2013*

**Chemistry**

i don't know
*October 12, 2013*

**Chemistry**

2.56 good answer
*October 12, 2013*

**Chemistry**

The density of methanol is .7918 g/ml/ How many grams of methanol do I have to add to 35.0ml of water to make a solution containing 25% methanol?
*September 7, 2013*

**statistics**

Researchers conducted a survey of parents of 66 kindergarten children. The parents were asked whether they played games with their children. The parents were divided into two groups: working class and middle class. The researchers wanted to know if there was an association ...
*August 23, 2013*

**Math**

Which statement(s) is/are true?Select one of the options below as your answer:A. A 25° angle is congruent to a 25° angle.B. Two intersecting lines form two pairs of congruent angles.C. It is possible for congruent angles to add up to 90°.D. All of the above are true.
*July 24, 2013*

**math**

x-y+z=3 2x-y+z=4 x+2y-z=-1 solve in Gaus-Jordan method
*July 13, 2013*

**Physics**

the C is wrong for me using the b in di/dt
*June 15, 2013*

**Physics**

E⃗ = 8.6 xˆsin(2πλz + 5.91e16 t) V/m B⃗ = Bo⃗ sin(2πλz + 5.91e16 t) Tesla o can you explain the formula what is n, c and omega?
*June 14, 2013*

**Algebra**

6964.4
*June 1, 2013*

**Physics**

how is you process?
*April 27, 2013*

**Physics**

contact me ulisesvzv @ gmail . com i have the half of answers
*April 13, 2013*

**physics**

A coil consists of N=105 turns of wire wrapped uniformly around a plastic torus. The inside radius of the torus is r0=0.12 m and the outer radius is r1=0.14 m. Thus, each winding has a diameter d=0.02 m. What is the self-inductance (in H) of this coil? Work in the ...
*April 12, 2013*

**physics**

thanks, do you have the c?
*April 12, 2013*

**physics**

Consider a circuit with an RL series with L=0.09 H and R=0.05 Ohm. At t=0 the circuit is connected to a battery which provides V0=12 V. (a)How long does it take to the current to equal a fraction 0.95 of the steady state current? (b) What is the energy stored (in Joules) in ...
*April 12, 2013*

**physics**

Consider the process of charging a parallel plate capacitor with circular plates of radius R=5 cm separated by a distance d=0.2 cm. At some time t1, the capacitor is being charged with a current I=0.075 A. Consider a point P on the plane which is equally distant from the two ...
*April 12, 2013*

**physics**

i have the answer, thanks :)
*April 12, 2013*

**physics**

Compare the total magnetic energy in two solenoids, each with N turns, area A, and current I, but length x and 2x. Denote Ux the total magnetic energy in the solenoid with length x, and U2x the one in the solenoid with length 2x. What is U2x/Ux?
*April 12, 2013*

**Physics**

a and d please
*April 9, 2013*

**Physics**

i got it, is the negative :)
*April 9, 2013*

**Physics**

C) i3 please, i3 isnt same to i2
*April 9, 2013*

**physics**

i need only the c1
*April 9, 2013*

**statistics**

xc
*November 14, 2012*

**math**

5,128,000
*June 20, 2012*

**chemistry**

2. Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3), water vapor, and carbon dioxide. The enthalpy of this reaction is 129 kJ. Write a correct thermochemical equation for this reaction, explain how you ...
*May 14, 2012*

**science**

A. 1.36 m/s B. 0.06 m/s C. 8 m/s D. 4.5 m/s
*May 8, 2012*

**physics**

if a steel flagpole get 5.1 mm taller when temperature increase by 5.0 degree celsius approximately how tall is the flagpole?
*April 12, 2012*

**Chemistry**

How do I figure out how to balance 1 mole of carbonic acid with 1 mole potassium hydroxide? And balance a chemical reaction of sodium bicarbionate with hydrochloride acid?
*March 18, 2012*

**physics**

a cyclist must travel 1500 km . how many days will the trip take if the cyclist travels 8 h/day at an average speed of 25 of 25 km/h ?
*September 14, 2011*

**economics**

For example the productive needs of the firm would be to set (Marginal Revenue = Marginal Costs (MR = MC) and create excess profits for the firm. However, as far as what is in the best interests of society it might be Price or (Average Revenue) = MC. Give the answers of both ...
*September 3, 2011*

**economics**

How do minimum wages affect equilibrium price?
*September 3, 2011*

**maths methods**

Find the angle of depression from top of a 500 m long chairlift with a vertical height of100 m
*August 1, 2011*

**physics**

1. The best leaper in the animal kingdom is the puma, which can jump to a height of 12 ft when leaving the ground at an angle of 45°. With what speed, in SI units, must the animal leave the ground to reach that height?
*June 19, 2011*

**math**

Ddtfyyfy
*May 30, 2011*

**math**

is the realtion a function? explain (1,1), (2,1), (3,1), (4,1)
*March 25, 2011*

**Math**

An open box with a square base is to bemade to organize items in the trunk of a car. It is planned to use an area of 16m square of flexible plastic forthis box. What are the dimensions of the box for max volume?
*February 24, 2011*

**Literary Analysis and Composition**

Taking the same test!!! right now there are no answers to be found but hey it was worth a shot
*February 16, 2011*

**spanish NEED HELP!!!!**

number 7 is Hablaran NOT supieran
*November 29, 2010*

**Java Programming**

// Create a Scanner object to read input. Scanner keyboard = new Scanner(System.in); // Get the Purchase Amount System.out.print(" What is the Purchase Amount?"); purchaseAmount=keyboard.nextDouble( ); stateSalesTax=0.04*purchaseAmount; countySalesTax=0.02*...
*October 31, 2010*

**AP chemistry**

fg
*October 23, 2010*

**college Chemistry**

what is the amount of heat lost in KJ for 50 ml of water going from 70.0 degrees C to 1.0 degrees?
*July 1, 2010*

**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 3.5 m/s2. The magnitude of the car's velocity at the end of stage...
*May 26, 2010*

**algebra**

How do you find any x-intercepts and y-intercepts. If no x-intercepts exist, state this. g(x)=2x^2+3x-1
*April 24, 2010*

**Chemistry II**

What is the vapor pressure of benzene at 23◦C (about room tempera- ture)? The normal boiling point of benzene is 80◦C and its molar heat of vaporization is 30.8 kJ/mol.
*February 4, 2010*

**french**

what does this mean in english ecris la partie correcte d,aller apres chaque nom ou pronom
*November 24, 2009*

**6th grade**

WHAT IS A PUZZLE
*September 24, 2009*

**Math Help Please**

So the funtion is: x^2(x - 7)(x + 3 - 5i)(x - 3 + 5i) For it to have rational coefficients, you must get rid of the -3 + 5i term. Therefore the remaining zero is: 3 - 5i so your answer would be (C)
*July 22, 2009*

**math**

solve the system of equation by graphing then classify the system as consistent or inconsistent and as dependent or independent 8x-4y=-20 4y-8x=-20
*July 22, 2009*

**math**

you know you are right i did forget to change the symbol sorry so the answer is x>40 or x >-40 because negative and negative is negative i'm i right.
*July 21, 2009*

**math**

Solve -0.6x < -24 x=-40 the solution is {x|<-40} do it have it right!!!
*July 21, 2009*

**math**

can you check if i have this one right 0.6x+2=1.4x-1 my answer is ¡Ý 3.75 im i correct
*July 21, 2009*

**math**

solve using the multiplication principle. -1/2x=-3/4
*July 21, 2009*

**math**

0.6x+2 ¡Ü 1.4x-1
*July 21, 2009*

**alegbra**

translate to an algebraic expression the product of 37% and some number
*July 21, 2009*

**Algebra**

evaluate z+y/9 for z=62 and y=10 z+y/9=
*July 20, 2009*

**math**

8x=-72 i divided on each side and my answer is x=-9 i'm i right by the way thanks
*July 20, 2009*

**math**

Determine whether (-2,-1) is solution of 7x+6y=-3
*July 20, 2009*

**science**

how many tornados dose ohio average
*March 17, 2009*

**science**

Thank you.
*March 7, 2009*

**science**

what site would i go to to summerize the climate changes that have accured from the past to the present and predict what you think the Earth will look like into the 21st. century????
*March 7, 2009*

**human services**

Thank you!
*March 4, 2009*

**human services**

I am to identify the needs and expectations of P.E.A.C.E domestic violence agency in human service plan, can anyone suggest a web site that I might read and learn these identities and name the different types of stakeholders.I want to check out other sites other than my class ...
*March 4, 2009*

**human services**

I had planned to write a program plan for my human service project. One of the things I need to know is what is elements and how would I use these elements to make an effective program plan. If I could find a web site that would give me enough information then I can go from ...
*February 25, 2009*

**human services**

I need help with identifying the elements of an effective program plan through out an evaluation
*February 25, 2009*

**MATH**

I REALLY NEED HELP CAN YOU HELP ME PLEASE
*February 21, 2009*

**spanish sra jmcguin**

see gfhdthis hgddis hfjdjcdeasy fdsjfl;saspainish
*February 21, 2009*

**To: dd -- human services**

yes thank you!
*February 18, 2009*

**To: dd -- human services**

What I have learned about the multimedia is the ways that the human service can use information to deliver to their clients. Pamplets, vedeos, and the interactions between the communities and the people in them. I may not be saying this right, so this is why I need some help. ...
*February 18, 2009*

**math 6th grade**

wont me to show u
*February 9, 2009*

**Math**

i need to check my answers for my THA #27
*January 7, 2009*

**5th grade Geomentry**

I LOVE MATH
*December 2, 2008*

**government**

Why is the president more successful in foreign policy? This difference narrowed from 1965 to 1975 (55% foreign policy to 46% domestic policy). What explains the president’s poorer recent performance in foreign policy?
*November 22, 2008*

**government and politic (please help...i'm stuck)**

One of the problems of liberty is that one person’s liberty sometimes conflicts with another’s liberty and one must take precedence. How would you resolve the following conflicts between rights of the individuals and why? [h] Fountain Valley High School has 80% ...
*November 10, 2008*

**chemistry**

r3r3r44
*August 30, 2008*