Eleanor

Most popular questions and responses by Eleanor
1. chemistry !

a 135-g sample of sea water is evaporated to dryness, leaving 4.73 g of solid residue (the salts formerly dissolved in the seawater). calculate the mass percent of solute present in the original sea water. please help I need to pass this test. thank you

2. Physics

A helicopter is rising vertically at a uniform velocity of 14.7 m/s. When it is 196m from the ground, a ball is projected from it with a horizontal velocity of 8.5 m/s with respect to the helicopter. Calculate: a.) when the ball will reach the ground b.)

3. science-biology help

knowing that as the steepness of a concentration graident increases, the rate of diffusion increases, explain how a single celled organisms would respond in an oxygen rich pond compared to an oxygen poor pond. I'm not really sure but in an oxygen poor pond

4. Physics

A constant friction force of 10 N acts on a 85 kg skier for 20 s. What is the skier's change in velocity?

5. Math

The diagram shows a solid metal cylinder. The cylinder has base radius 2x and height 9x. E cylinder is melted down and made into a sphere of radius r. Find the expression for r in terms of x.

6. Chemistry 2

what is the pH in a 0.13M solution of aniline (Kb=4.3*10^-10). What is the concentration of C6HNH2 in the same solution?

7. Maths

There are 9 counters in a bag. There is a number on each counter. 1, 1, 2, 2, 2, 3, 3, 3, 3. Joanne adds together the numbers on the 3 counters to get her total. What is the probability that he total is 6? Thank you.

8. Combinations

Assume that the set S has 10 elements. How many subsets of S have at most 4 elements? This question is from the section in my book called "Counting Partitions: Combinations." I would greatly appreciate any help! Thanks!

9. Math

Alyssa started hiking at an elevation of 1500 feet. After 2 hours, she was at 1200 feet. Which integer describes her change in elevation?

10. Math

Assume that the set S has 10 elements. How many subsets of S have at most 4 elements? This question is from the section in my book called "Counting Partitions: Combinations." I would greatly appreciate any help! Thanks!

11. Math

counting on the number line what is the missing number for 10 22 34 46 58

12. French

I am writing a narrative with that involves multiple verbs in the PC/l’imparfait within the same sentence. I suspect there are special procedures you follow when conjugating in this situation, but I don’t remember what. I remember something about using

13. algebra

What value represents the horizontal translation from the graph of the parent function f(x) = x^2 to the graph of the function g(x) = (x – 4)^2 + 2?

14. science

I don't understand why as the steepness of a concentration gradient increases, the rate of diffusion increases as well. I would think it would decrease. I looked it up in google and read some articles but I still don't understand. can someone explain this

15. History

What is Marxism?

16. Maths

The hcf of 140 and x is 20. The lowest common multiple of 140 and x is 20. What is the value of x? Thank you.

17. algebra

what is the common ration of 2,12,18, and 27. What are the next three numbers in the sequence.

18. math

how do i do this. find the equation for the lines that are tangent and normal to the curve y= (square root of 2)(cosx)at the point (pi/4, 1)

19. math

how do i find the equaiton of the line tangent to the curve at the point defined by the given value of t. 1. x=t, y= the square root of t, t=1/4 2. x=sec^2t-1, y= tan t, t= -pi/4

20. math

how do i solve this? do i have to use both chain and product rule- how do i do that? find the deriviative of y= sin^2(3x-2)

21. Languages

I have an oral quiz tomorrow for Latin I in VLACS, but I don't know the questions that I will be asked. I'm on module 3. Did anyone take Latin I at VLACS? Please help. I need to know before tomorrow!

22. algebra

What value represents the vertical translation from the graph of the parent function f(x) = x^2 to the graph of the function g(x) = (x + 5)^2 + 3?

23. Math

For what real values of 2x^2+ax+25 the square of a binomial? If you find more than one, then list the values separated by commas.

24. Chemistry

For my lab, I have been asked to calculate the pKa of an unknown amino acid. We titrated the unknown amino acid with NaOH. The pKa needs to be calculated using the Henderson Hasselbach Equation. Obviously you can just get the pH from any point on the graph

25. Psychology

Apply two psychological principles to real life situations

26. chemistry

what quantity is measured by a spring weight

27. math

How many milligrams of a drug are in 500 g of a 25% Ointment?

28. Us history

What does this mean, "Franklin was to the United States as bacon was to England" please help thanks.

29. French

I think that you are hiding something in your stomachs. Je pense que vous cachiez quelque chose dans tes estomacs. ^did I use the subjunctive correctly?

30. French

Après ça, j’ai enseigné à mes amies tout l’information au sujet... I got points marked off for the agreement of tout (I wasn't sure if my teacher meant between je and tout, mes amies and tout or tout and l'information...which is it? And how can I

31. French

According to my teacher, I ommited a word between the vous and the attacherez, but I am not sure what. "Après ça, vous attachrez á l’épingle á ligne." I'm thinking maybe allez so it will read "after that, you are going to..." What do you think?

32. French

Is this how you make tout seul agree? Donc, j’ai créé les mammoths laineux touts seuls?

33. French

They linked their tusks romantically--ils était relier leurs défenses romantiquement. My teacher says this is wrong...what corrections would you suggest? Merci!

34. French

For nous, do you pluralize the adjective? For example "nous sommes bizarres?"

35. geology

what are the distinguishing characteristics between the two catergories of rocks? (igneous)

36. english

I have to write a 3 page essay on "Is Tradition a Neurosis?" Any ideas please?

1. art

Audrey, thank you so much! I was very confused, and with your answers I got 100%!!!

posted on June 15, 2017
2. Chemistry

Our professor said we have to use the equation to get the value though, that we shouldn't just pull it from the graph.

posted on September 10, 2016
3. Psychology

i need on how to organize the essay

posted on April 23, 2016
4. Psychology

i need help on how to organize the essay

posted on April 23, 2016
5. Psychology

i need on how to organize the essay

posted on April 23, 2016
6. Psychology

ok thanks

posted on April 23, 2016
7. Psychology

Three lengthy pages

posted on April 23, 2016
8. Psychology

would you like to add anything else?

posted on April 23, 2016
9. Psychology

i want to emphasize on social norms..For example self-deprecation,it becomes a social norm in their group and it breeds even more insecurity within the individual yet makes other members of the plastics feel slightly better about themselves."At least i

posted on April 23, 2016
10. Psychology

the whole movie.

posted on April 23, 2016
11. Psychology

The Mean Girls

posted on April 23, 2016
12. Psychology

so can you help?

posted on April 23, 2016
13. Psychology

yes

posted on April 23, 2016
14. Psychology

The teacher also said you can also write about a movie you have watched and apply those principles

posted on April 23, 2016
15. Psychology

i want to apply the principles to a movie

posted on April 23, 2016
16. Psychology

social norms and emotion

posted on April 23, 2016
17. Psychology

these are the psychological principles i am studying

posted on April 23, 2016
18. Psychology

sensation,emotion,personality,social norms,culture,perception,neuroscience

posted on April 23, 2016
19. Psychology

psychological,social

posted on April 23, 2016
20. Math Help!

F(x)=1 if x > 1 -1 if x < 1

posted on November 25, 2014
21. Us history

What do u mean by that?

posted on May 8, 2013
22. French

After that, you attach the clothespin.

posted on March 1, 2011
23. Math

Ok, the answer is 386! Yay! However, I am not sure why the answer is not 385.... maybe because we had to add c(10,0) into the mix. Thanks so much for the help... I wouldn't have gotten the answer had it not been for your help!

posted on February 19, 2009
24. Math

Hey, thanks! However, that answer was not right. Any other ideas? You seem to be on the right track... This problem really confuses me.

posted on February 19, 2009