Wednesday
December 7, 2016

Posts by Anna

Total # Posts: 2,599

Physics
A converging lens has a virtual object located a finite distance away. Which of the following must be true? (Select all that apply.) a) f > q b) The image is virtual. c) p < 0 d) The image is real. e) p > 0 Hi, can someone explain which is correct or incorrect? Thank ...
June 10, 2015

English
I am just about the processes of writing a short story and I am looking for a word/phrase that can properly describe a departure, without a destination(I am not going to specify anything to reflect the tone and theme of my story) that is just taken based on whim and for self ...
June 9, 2015

Physics
A pair of speakers separated by distance d = 0.900 m are driven by the same oscillator at a frequency of 670 Hz. An observer originally positioned at one of the speakers begins to walk along a line perpendicular to the line joining the speakers as in the figure below. (a) How ...
June 8, 2015

Physics
A pair of speakers separated by distance d = 0.900 m are driven by the same oscillator at a frequency of 670 Hz. An observer originally positioned at one of the speakers begins to walk along a line perpendicular to the line joining the speakers as in the figure below. (a) How ...
June 8, 2015

Physics
I did a lab about Standing waves on a string and it asked me the following qeuestions: Discuss any errors arising from the method used to establish the standing wave pattern. - I think air resistance, linear density of string is non uniform, tension of the string is not ...
June 5, 2015

Physics
Suppose you have a string that is being made to vibrate at a specific frequency, f. The speed of waves on the string is v. The length of the string that is vibrating, L, is adjustable. When the length of the string has been adjusted so that the fundamental standing wave ...
June 4, 2015

Physics
thank you!
June 4, 2015

Physics
A stretched string is attached to an oscillator. On which of the following quantities does the wavelength of the waves on the string depend? Select all that apply. The choices are: A) The frequency of the oscillator. B) The tension applied to the string. C) The amplitude of ...
June 4, 2015

Math
Wait! Nevermind, figured it out! Use linear equation right?
June 3, 2015

Math
Which of the following equations gives the relationship between S and T in the table below? S 1 2 3 4 5 6 T 1 4 7 10 13 16 How do you find equations again?
June 3, 2015

Math
1. Cate went on a trip of 120 miles at x miles per hour. Returned over same route at 5miles/hour faster than previous rate.If time for return trip was one-third of an hour less than time for the outgoing trip,how do you find x? (Set up the chart right, and used the time column...
June 3, 2015

Math
PLease explain how to do this Add or Subtract (m^2-m+3)+(m-1)
June 2, 2015

Math
I brought a book and paid $1.80 in sales tax. If the tax was 8%, what was the cost of the book. How do I solve this problem?
May 25, 2015

Language Arts
Each day, Wyatt created both humorous and touching poetry in his attic room. his attic room both humorous and touching poetry Each day in his attic room
May 23, 2015

ss
That link didn't help at all. If you could, every once in awhile, JUST GIVE A BALLPARK FIGURE, and stop sending stupid links.
May 13, 2015

LA the giver chapters 1-2
just to make it easier, all of the answers are: 1. b, d 2. c 3. b 4. d
May 13, 2015

english
Please place all of the chairs in the middle of the room.
May 11, 2015

math
Me is 100% correct. Thanks a bunch.
May 6, 2015

Spanish
Thank you so much Sra. You are always so kind to help.
May 2, 2015

Spanish
Sra. does this essay look ok? It is comparing the Hispanic views on death and the US view. Cultura hispana celebra la muerte de muchas maneras, mientras que la cultura americana creo que es demasiado triste para la vida diaria. La vida para los hispanos es difícil. La ...
May 2, 2015

math
yEAH, Student stop being a HATER
April 28, 2015

Computer Architecture!!
How can we find the value in decimal stored in the AC register, after executing the MARIE program
April 24, 2015

Math
Amy is 100% correct for Connections Academy students. =)
April 24, 2015

Chemistry
for anyone else needing this info it is b
April 20, 2015

Chemistry
so is it a b or c
April 20, 2015

Chemistry
then you must times it by two so it would be .0144
April 20, 2015

Chemistry
but that is wrong when entered into assignment, what else could it be
April 20, 2015

SS
Just because someone needs help with a question doesn't mean that they're cheating. If you have nothing nice to say, don't say shizznit at all!
April 20, 2015

college algebra
a chemist needs to prepare 28 ounces of a 8% hydrochloric acid solution. find the amount of 14% solution and the amount of 7% solution he should mix to get this solution.
April 20, 2015

math word problem
You are in a car. The car begins your journey by traveling 3 miles south in a straight path. The car then travels 9 miles east in a straight path and then turns and travels another 9 miles south in a straight path to end the journey. What is the straight-line distance between ...
April 16, 2015

SOUTH CAROLINA STATE HISTORY
9. Which event did NOT change the culture of the United States during the early 1920s? (1 point) a. bank failures that closed factories and decreased job opportunities b. installment plans used to purchase expensive consumer goods c. boll weevil infestations which changed ...
April 15, 2015

Economic
Suppose that Betsy’s utility function is given by the equation U=Y0.3 where Y is measured in thousands of dollars. Betsy’s current job pays her $20,000 per year and she can earn this amount next year with certainty. Betsy is offered a different job but in this new ...
April 15, 2015

Pre Algebra Probability
adolf hitler and you know he is gay, how? plus, whats wrong with that? compare being gay with murdering tons of innocent Jews? don't try taking a straw out of someone elses eye when you have a rafter in your own
April 13, 2015

Physics
You have 250 g of water in an aluminium calorimeter with a mass of 125 g. How long will it take to increase the temperature of the water and calorimeter from 20C to 37C if the system is heated by a resistive heating element with 8 V across the resistor and 0.75 A flowing ...
April 12, 2015

English
What are each of these are like: 1. Control 2. Conformity 3. Equality 4. Individualism
April 12, 2015

Trigonometry (identities) (last help needed)
I apologize; it is simplifying. The homework is for my identities unit, though. And number 1 does not have a typo. Sorry!
April 9, 2015

Trigonometry (identities) (last help needed)
1. (2cosx-2secx)(3cosx^2+3secx^2+β) 2. (16tanxsecx-4secx)/(8tanxsecx+4secx) 3.sinxcosx^3+cosx^4 (hint: GCF) 4. (cosβ+sinβ)^2
April 9, 2015

Trigonometry (identities)
I tried these but for 4 I seemed to get a reasonable answer: cos^2(β)-cot^2(β) How does that look? Please correct me if I'm wrong - it felt too simple.
April 9, 2015

Trigonometry (identities)
1. (-8cosxsinx+4cos2x)^2 +(4cosx^2+8sinxcosx)^2 2. cos(α-β)cosβ-sin(α-β)sinβ 3. 1+(sinx-cosx)(sinx+cosx) 4. (cosβ-cotβ)(cosβ+cotβ)
April 9, 2015

Geometry
Pyramid?
April 8, 2015

Physics
A parachutist drops out of a plane at an altitude of 150m and accidentally drops his camera. If the parachute opens the instant he drops out of the plane and he descents at a constant speed of 6 m/s, how much time separates the arrival of the camera on the ground from the ...
April 5, 2015

Trigonometry (identities)
Simplify: 1. sin(α+β)+sin(α-β) 2. (-8cosxsinx+4cos2x)^2 + (4cos^2x+8sinxcosx)^2 3. sqrt(sin^4xcosx) * sqrt(cos^3x)
March 31, 2015

chemistry
Answer is 40.1L. After conversions, plug it all into V=nRT/P
March 31, 2015

chemistry
Try PV=nRT, where R=0.08206, P=pressure, V=volume, n=moles, and T=temperature. Convert temperature to Kelvin, Torr to atm (pressure), and g to moles (divide by molar mass).
March 31, 2015

Chemistry
This sounds right to me! Next step to find kJ per gram, would be to convert your J to kJ, and divide by the amount of grams given. This is odd, however, since normally these problems want kJ per mole, not gram. I hope this helps!
March 31, 2015

art
Thanks "Sid.V" I couldn't figure out number 2
March 31, 2015

chemistry
Keep in mind: n=moles, so divide your grams by molar mass to get moles. Then, as said above, plug everything in. V=nRT/P
March 30, 2015

Chemistry
Set up: convert units --> PV=nRT --> PV/RT=n --> moles to molecules. (0.993atm*2.00L)/(0.08206*296.15K)=0.08176 mol N2 0.08176 mol*(6.022x10^23 molecules/1 mol)=4.92x10^22 molecules N2 Let me know if this helps!
March 30, 2015

English
B. It's for sure.
March 27, 2015

math
The area of a circle is given by the formula A = ðr2, where r is the radius. If increasing the radius of a circle by 1 inch gives the resulting circle an area of 100ð square inches, what is the radius of the original circle?
March 26, 2015

History
ohhhhh its C xD
March 24, 2015

History
so A :)
March 24, 2015

History
South Carolina .
March 24, 2015

History
Why did the popularity of the Grange decline? a.)Its leaders were weak and ineffective. b.) It became corrupt and lost the farmers' trust.**** c.) It did not address the farmers economic needs. d.) it was not able to obtain political power in the state
March 24, 2015

History
thank you mrs.sue and reed :) if i have anymore questions do you mind helping ? if not its ok i understand :)
March 24, 2015

History
so for the last one would it be A ?
March 24, 2015

History
wait would number 2 be b ? i was confused on that one . and be for the last question also ?
March 24, 2015

History
im confused about that last one would it be a or b ? and yes for number 1 and im not sure for number 2 because that's the whole question
March 24, 2015

History
please help i have my answers just not sure if im correct :( what criticism did tillman direct at conservations? a.)they controlled the office of the govnr b.)they didn't think blacks should vote ****** c.)they believed in white supremacy d.)they didn't care about the ...
March 24, 2015

Spanish
Hola Sra. Do these look ok? Part I Complete el párrafo por llenar los espacios en blanco con la forma correcta de los verbos entre paréntesis. ¡OJO ! No todos requieren el subjuntivo. Hoy martes estoy en el aeropuerto y tengo que pasar la aduana. El aduana ...
March 20, 2015

Pre-Algebra
Equation M: y = 3x + 4 Equation P: y = 3x + 7 Which of the following options is true about the solution to the given set of equations? No solution One solution Two solutions Ininite solutions I thought it was infinite solutions but i got the answer wrong.
March 20, 2015

CHECK ANSWERS PLEASE!!!
Thanks "Alexis" I got a 100% I had gotten them almost completely wrong smh.
March 18, 2015

chemistry
How much energy is needed to completely remove an electron from n = 2 in a hydrogen atom?
March 18, 2015

Art
Got 100% thanks
March 16, 2015

Spanish
Thank you so much for your tips. Hopefully these are better. 1. La fiesta se considera excesa pero todo el mundo participa. 2. Se abrazan, celebran y bromean acerca de la muerte. 3. Ella era una buena madre y estaba triste que su hijo era un ladrón. 4. Él pens&...
March 12, 2015

Spanish
Hola Sra.! Do these look ok? Escriba un párrafo (por lo menos 5 oraciones) para contestar cada una de las preguntas siguientes. 1. Identifique dos temas principales de “The Day of the Dead” por Octavio Paz. El ensayo es sobre la cultura de la fiesta y de la ...
March 12, 2015

Math
6.25
March 8, 2015

math
Sinx/Cscx -1+sinx/Cscx +1= 2tan^2x
March 8, 2015

L.A
An analogy explains, clarifies, or illustrates something by drawing comparisons. Frost compares the woods to life. The two paths represent decisions made to take one road, and not the other road. Whitman uses analogy by saying that the Civil War was a sea voyage and Mr. ...
March 6, 2015

social studies. NEED HELP ASAP
It's restricting their appearance. Thy wear hijabs, and long silk clothing. This is the only one that makes sense. If you read your book, it tells you about women who have jobs. They even gave an example of a woman who is nurse. Also, what Ms. Sue said. They have the right...
March 6, 2015

Chemistry
i converted from pKa to Ka for all three values. i don't know where to go from there.
March 5, 2015

Chemistry
Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.250 M phosphoric acid solution. [H3PO4] = ? [H2PO4^-] =? [HPO4^2-]=? [PO4^3-]=? [H^+]=? [OH^-]=? pH=?
March 5, 2015

Math
Three is not A. Three was C for me, and I got a one hundred. Thank you I_Was_Here.
March 5, 2015

chemistry
A container of gas at 24 psi is compressed to one eighth its original volume. What is the new pressure of the gas? Answer in units of psi.
March 5, 2015

chemistry
A chemist prepares a sample of hydrogen bromide and finds that it occupies 249 mL at 60◦C and 552 Torr. What volume would it occupy at 0◦C at the same pressure? Answer in units of mL
March 5, 2015

Precalc+trig
Solve tan(40/90) for the double angle cos(2theta). I know I use the x^2 + y^2 = r^2 formula and cos(2theta) = cos^2theta - sin^2theta. But I don't understand my answer
March 4, 2015

MATH
thank you for awnsering my question
March 3, 2015

calculus
Find Indefinite Integral of dx/(x(x^4+1)). I think that Im complicating it too much. I moved the dx out making it 1/(x(x^4+1))dx than 1/(x^5+x)dx. I think i have to use formula indef integral of dx/(x^2+a^2) = 1/a(tan^-1(x/a)) but im stuck i don't know what to do next. I ...
March 3, 2015

chemistry
Given the following balanced chemical equation, if 15.4 g AgNO3 are reacted, how many moles of AgCl are produced? 2 AgNO3 + BaCl2 → 2 AgCl + Ba(NO3)2
March 1, 2015

chemistry
A sample of oxygen that occupies 2.5 × 10−6 mL at 508 mm Hg is subjected to a pressure of 1.2 atm. What will the final volume of the sample be if the temperature is held constant? Answer in units of mL
February 25, 2015

Social Studies
Thank you for the map, Ms. Sue.
February 25, 2015

physics
Ohh I see the pulling force is 220.5 The frictional force is 66 For the normal force I actually got 367.85 I just don't understand how you solved for acceleration by saying 1/2-1/5*7.96
February 22, 2015

physics
Sorry I meant 47 kg.
February 22, 2015

physics
For the frictional force I got 61.4 For the magnitude of the Normal force I got -398.5 and for the amount of force pulling you down the slope I got -250.2 I don't think that's right though.
February 22, 2015

physics
Oh sorry. To find the frictional force is it (0.18)*(47.0)(9.80)cos37 degrees and the magnitude of the Normal force is (47.0)(9.80)cos37 degrees
February 22, 2015

physics
Is this right? (45.0)*(9.80)*(sin35 degrees)= a number a number - frictional force = answer
February 22, 2015

physics
You are skiing and have a mass of 47 kg and are on a slope making an angle of 37 degrees above horizontal. The coefficient of kinetic friction between the skis and the snow is 0.18. What is the amount of force pulling you down the slope? What is your acceleration down the slope?
February 22, 2015

statistics
I also need help with this question!!!!
February 22, 2015

Spanish
Thank you Sra. Yes I got the question and answers backwards in part II. SCAMP really helps. I will add that to my notes. Thank you.
February 20, 2015

Spanish
Hola Sra. Are these correct? Part I Indique si las palabras dadas son sinónimos, antónimos o que no son relacionadas. 1. maletas y equipaje sinónimos 2. despegar y aterrizar antónimos 3. abrochar y confirmar no son relacionadas 4. ida y vuelta sin&...
February 20, 2015

Social Studies
Women politicians is the answer to 10. -Hijabs are old things that they wore all the time. -the Five Pillars I have no idea. -prayer outside the home is already one thing they do. They prey in the masque.
February 20, 2015

english
Mr. Bacon is right! 100%
February 20, 2015

Math Help
Hi! Can someone please help me with these? Thanks! :) Directions: Look for the direction angle for vector v. If necessary, round your answer to the nearest tenth of a degree. 1.) v = 8i - 10j 2.) w = -4i - 3j
February 18, 2015

Math
u = <7, -3> and v = <-2, 4>. Find u + 3v.
February 18, 2015

social studies. NEED HELP ASAP
Thanks for the help. I got 100% The answers are: 1. C 2. A 3. D
February 18, 2015

Chemistry
1.How much energy is emitted by 1 mol of sodium ions emitting light at this wavelength? Answer in units of kJ. This is what I did for this problem, but my answer is wrong 45.8 mg = 0.0458 g 0.0458 g / (23.0 g/mol) = 0.001991 mol Na 0.001991 mol x (6.02214 x 10^23) = 1.199 x 10...
February 13, 2015

Art
I got a 100% with those answers!
February 13, 2015

Spanish
Thank you so much Sra. These all make sense.
February 12, 2015

Spanish
Sra. Do these look correct? Part I LOS MANDATOS AFIRMATIVOS. Forme mandatos afirmativos directos según el ejemplo: Ejemplo: BUSCARLO (tú) Búscalo 1. CONDUCIR (Ud.) conduzca 2. PREGUNTARLES (Uds.) pregnútenles 3. COMER (nosotros) comamos 4. OLVIDARSE...
February 12, 2015

math
A bag contains 5 red and 4 green apples. Michael takes one apple at random from the bag. His sister Ashley then takes an apple at random from he bag. What is the probability that the two apples are the same colour? Can you explain to me how to do this please? Do I need a ...
February 8, 2015

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