Sunday
April 20, 2014

Posts by Lisa


Total # Posts: 2,926

science
If waste products of an aquatic single celled organism were released by the organism into the pond, how would that affect the organism’s ability to obtain oxygen from the pond water? i guess what i am really asking is does the presence of other moleculs (the waste product...

chemistry
The element rhenium (Re) has two naturally occurring isotopes, 185Re and 187Re, with an average atomic mass of 186.207 amu. Rhenium is 62.60% 187Re, and the atomic mass of 187Re is 186.956 amu. Calculate the mass of 185Re. (Give your answer to 3 decimal places.)

French
I want to learn a few french words. I need help= Thank you= you are the best= Call me= maybe later= Sound them out as well.

Physics
In a pulley system, can the force of friction equal the tension in the rope? Let's say there is a mass on a table connected to a pulley system (placed at the corner of the table), while the other mass hangs from the table ... can the force of friction equal the tension? Be...

2nd grade
how can I make the number 40 in two parts.

PHYSICS
the answer is v1 = 2*45*cos(30) = 77.9 m/s

3rd grade-Science
How can decay caused by microorganisms be both helpful and harmful? I wrote it is helpful because if get rid of dead plants and animals. How would it be harmful?

Business
That employee could do planning. It could define goals,establish strategy, and develop subplans to coordinate activities. I am not sure but maybe that employee could also be organizing things. That employee could determine what needs to be done, how it will be done, and who is...

7th grade- Social Studies
Can you tell me if this is correct. Q. What positionn did Abraham Lincoln appoint Andrew Johnson in 1861 after the Civil War began? A. He was appointed to State Military Governor.

7th grade- Social Studies
I need help on these questions! Q.ow many brothers did Andrew Johnson have and what were their name(s)? A. I wrote Hugh and Robert but I am not sure if that is right. Q. What happened to the Johnson's home during the Civil War? A. I could not find the answer on this one. Q...

Computer Science Java
I have to write program for a dice game and use a boolean variable in the application class of the dice game that equals true when snake eyes, doubles, and box cars have been meet. I am having a little trouble doing that in my application class so I was wondering if somebody c...

chemistry
Based on position in the periodic table and electron configuration, arrange these elements in order of decreasing E_ i1

english
beneath is the 1st one and I think douma is the 2nd one

psy210
well the psychological theory would be humanistic.

Physics
The reaction force is the rock pulling up on earth, I am not sure though.

Creative Writing
just want to congratulate you, for the new arrival of your sister.

Ashford
7.25

Physics
The force is parallel to the horizontal(ground) and is drawn as going into the plane of the inclined surface.

Physics
An object of mass M = 649 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50o with the horizontal. What is the magnitude of the force that is exerted by the inclined surface on the object?

Physics
I guess the drawings didn't turn out the way i wanted them... The angle is between the net force of pulling the leg horizontally and the tension of the string.

Physics
_______________ | | | / / leg /_<--angle=60`______ \ \ \ \ | | | ----- m

Physics
_______________ | | | / / / \

Physics
Leg traction is applied to a patient's leg. If the physician requested a 32N force to be applied to the leg, and the angle is 60 degrees, what mass m must be used for the object hanging from the massless cable?

Physics
Thank you

Physics
An object of mass M = 1,114 g is free to move along a horizontal, frictionless surface. This object is further connected to a second object with a mass of m = 811 g by means of a massless string that extends around a massless, frictionless pulley. Find the tension of the massl...

math
post that same question in the little jiskha box search, and you'll find what you need.

math
7/8

Help
I love this website, hip hip horray for jiskha:-)

Help
is tutorvista a free website

Math
not neccessarily

French
thanks, but I am unable to find a good french/english dictionary online.

French
oh can someone please translate this into french for me, thank you, Just give me some french words.

French
I am working on a paragraph and I need help on my introduction. Hi, I'm Lisa, and I love to play sports such as volleyball, and soccer. One sport I don't like is hockey, because I it doesn't really interest me.

grammer
“As I was rounding the bend,” Peter explained, “I failed to see the sign”.

math
you can also punch this on a calculator and you'll get the same result, which is 58.

math
this is a pretty good riddle post, you should post this on net riddle.

math
aflyerquacker, atleast thats what I think

geography
What is the world's largest map? Title and size? 6th grade question

MATH
HOW TO I DETERMINE THE GALLONS THAT WOULD BE IN A BOX?

math
14+12-6=20, where to put parenthesis to make the number sentence true? How?

math
20-5+3=12, where to put parenthesis to make the number sentence true?

MATH PATTERNS
THANK YOU MS.SUE

MATH PATTERNS
IS IT 122

MATH PATTERNS
USE THE RULE 1 LESS THAN 3 TIMES THE NUMBER TO MAKE A PATTERN START WITH 5 WHAT IS THE 4TH NUMBER IN THIS PATTERN?

Physics
A 21.6-kg box rests on a table. A 19.3-kg box is placed on top of the first box, as shown. Determine the total force in N that the boxes exert on the table. Calculate both F=m a for both masses and add them together? Assuming A=9.8

physics
A 21.6-kg box rests on a table. A 19.3-kg box is placed on top of the first box, as shown. Determine the total force in N that the boxes exert on the table. FIND f=ma for both and add them up? a=9.8 gravity rite?

physics
A cart travels a constant speed of 2.80 ± 0.01 m/s for a time of 8.80 ± 0.04 s What is uncertainty, &deltax, in the distance, ?

Algebra help/ look over please
Can you please look over these and let me know if they are right? 1/4(5x-1/2)-5/3<1/3 5/4x-1/8-5/3<1/3 24(5/4x-1/8-5/3)<24(1/3) 30x-3-40<8 30x-43+43<8+43 30x<51 x<51/30 {x|x<51/30} 31-(2x+2)< or equal to 4(x+1)+x 31-2x-2< equal to 4x+4+x 29-2x<...

Computer Science-Java
Hi, I have to prompt a user to input a password and have to verify whether or not it is a single word. How would I do something like?

chemistry
The solubility of cholesterol in 95% ethanol is 32.5 mg/mL at 37°C and 11.5 mg/mL at 7°C. How much 95% ethanol is required to dissolve 1 g of cholesterol at 37°C? If that volume of warm, saturated solution is cooled in a refrigerator to 7°C, how much cholestero...

social studies
i donot no

social studies
why is it important to identify alternatives for reaching a goal

social studies
why is it important to set a goal when making a decisions

social studies
how is making a decisin similar to making a choice

accounting
75,000 The exchange is taxable because Bob did not hold 80% control in Dove after the transfer.

History
What is the Psychological Perspective of the womens movement?

Physical Science
What do we harvest carbon from?

physical science
What is the typical life time of a cloud?

Physical Science
What is the typical life time of a cloud?

Social Problems
How does the conflict perspective and education relate?

Computer Science-Java
Hi, I have to write a method that returns my first name, middle initial, and last name as a single String and call the method in java. So far, I have: public class ReturnName { static String fullname(String firstname, String middleinitial, String lastname) { return firstname +...

algebra
need help with 2 questions first It has been a long time since I did algebra and dont rememeber how to work the problems 1/5(x+1) + 2/5(x-1) = 3/10 2nd problem 0.1(2x-1) + 0.02(4x + 4) = 0.05x

Math algebra
1/5(x +1) + 2/5(x-1) = 3/10 2nd 0.1(2x-1) + 0.02(4x+4)= 0.05x

Math
Thank you! I always get confused but now I understand and can work the rest of my problems.

Math algebra
1/5(x +1) + 2/5(x-1) = 3/10 2nd 0.1(2x-1) + 0.02(4x+4)= 0.05x

Math
If I round 123.456 to the nearest hundreth is the correct answer: 123.500?

Computers-Java
Yes, I'm okay with the coding.

Computers-Java
I am writing a computer program to calculate the number of gallons of water used per day in my household but I want to make sure I am doing the program right. Ex. (toilet usage) # of people in household:5 # of times a person flushes per day:5 # of gallons per flush:5 The total...

biology
4. Both photosynthesis and aerobic cellular respiration are examples of complex metabolic pathways, consisting of many linked chemical reactions that require enzymes to function. Briefly, explain two attributes of enzymes in catalyzing chemical reactions and in metabolic pathways

college
A customer wants to mail a package. The postal clerk determines the cost of the package to be $18.95, but only 6¢ and 9¢ stamps are available. Can the available stamps be used for the exact amount of postage for the package? Why or why not?

Math
Thanks so much Bob, really helps

Math
Lisa cleans a house in 1 hour, it takes Mia three times as long; how long will it take working together?

3rd grade
A few puzzleing clues to follow Maybe a scary but good guy or two and a hint of funny stuff to keep you amused

Algebra
Can you please explain to me why it's C I just guessed it

Algebra
Determine if the relationship represented in the table is linear. If it is linear, write an equation. x 2 5 7 10 12 20 y -3 0 2 5 7 15 A) Linear; y = x - -5 B) Linear; y = -5x C) Linear; y = x + -5 D) Not linear I'm thinking it's C am I correct

Algebra 1
ok, thank you!

Algebra 1
no, that is how it is written. Thw slash is being used as a division sign.

Algebra 1
(6+8)8-9/3(9+3-2)^2

history
name a time in world history that explusion has occured? where does explusion fall on the inter group relations continuum?

history
how has immigration impacted the creation of united states?

Geometry
I really need help on this question can someone plz help me. If P(A)=2/11,P(B)=3/11,and P(C)=4/11, what can you say about P(A or B or C) when P(A and B and C) = 0?

Geometry
Help please I'm stuck in this 3 problems. 1.Find the center and radius of the circle (x - 1)2 + y2 = 36 2.Find the distance between the two points. Round an approximate result to the nearest hundredth(8, 0) and (0, 6) 3.Give the equation of the line that is perpendicular t...

Algebra
Determine whether the lines are parallel, perpendicular, or neither. y = 9x + 9 and y = -9x + 9 Is this perpendicular since they go across from each other

home economics
a food containin low biological value protein..? (7)

home economics
foods most commonly eaten in a country? (6)

home economics
a good soure of vitamin c? (6,6)

home economics
A CHEMICAL WHICH NOURISHES THE BODY? (8)

home economics
cereals in which tje fibre is removed? (7)

home economics
process by which energy is produced when oxygen burns up food through the body? (9)

home economics
minerals required in very small amounts are known as _ _ _ _ _ minerals!

home economics
when energy input is equal to energy output?

home ec!
when energy input is equal to energy output?

home ec
when energy input is equal to energy output!

home economics
i have 2 fill in the blanks to this question...found in foods that produce energy but do not produce any othe nutrient..._m_ _ y_a_o_ _ _ _ with 13 letters!

culture diversity
I have to write first person account in the form of journal entry could you please give me an example of this?

psychology
would being happy helps to having a more fulfilling life?

psychology
The central themes of positive psychology is happiness, hope, creativity and wisdom. One of the keys to being successful is to be happy to a certain degree

psychology
What are the central themes and strategies of positive psychology.

French
Thanks for all the help :)

French
Could you please check these thanks. Directions: Donnez des réponses personnelles. 1. Tu pars pour l'école à quelle heure le matin? Answer: Je pars pour l'école à sept heure. 2. Tu sors de la maison à quelle heure le matin? Ans...

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