# Posts by Lisa

Total # Posts: 3,427

algebra
The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 58cm when the weight is 3kg, what is the distance when the weight is 8kg

algebra
The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 58cm when the weight is 3kg, what is the distance when the weight is 8kg

algebra
1. The speed of a passenger trin is 18mph faster than the speed of a freight train. The passenger train travels 260 miles in the same time it takes the feight train to travel 170 miles. Find the speed of each train.

Chemistry
Thank you so much, Dr. Bob! :)

Chemistry
Purple light in the visible region of the electromagnetic spectrum has a shorter wavelength than does the green region of the spectrum. Which of the following can you conclude? Is it: a)a photon of purple light has a higher frequency than does a photon of green light or b) ...

math
1. The stopping distance d of a car after the brakes arecapplied varies directly as the square of the speed r. If a car traveling 80 mph can stop in 360ft, how many feet will it take the same car to stop when it is traveling 90 mph. 2.The distance d when a pring is stretched ...

Calculus
A man is in a boat 4 miles off a straight coast. He wants to reach a point 10 miles down the coast in the least possible time. If he can row 4 miles per hour and run 5 miles per hour, where should he land the boat?

physics
At 15 minutes past the hour, a 50 g mouse runs up a grandfather clock and sits himself down at the end of the minute-hand. If the minute-hand for the clock is 16 cm long, what is the magnitude of the torque exerted by the mouse on the minute-hand? Give your answer in the ...

Chemistry
Yes

chemistry
For the reaction: A + 3B = 4C Which of the following provides the direct link between the amount of reactant A and the amount of product C? -coefficients in the equation -molar mass of C -the reactant B or -molar mass of A?

Chemistry
What is the electron geometry if you have 4 electron groups around the center atom?

Chemistry
A sodium cation is what?

chemistry
When gas is burned: CH4 + 2O2 = CO2 + 2H2O, how many moles of water are produced when 6.2 mol of methane are burned?

chemistry
Dr. Bob, Thank you so much for taking the time to help me. God bless all your work with us. However, I'm still confused b/c these were my choices: 0 mol NH3, 0.038 mol N2, 0.333 mol N2H4, O.150 mol NH3,~0 mol N2, 0.300 mol N2H4, ~0 mol NH3, 0.38 mol N2, 0.188 mol N2H4 and...

chemistry
In a reaction vessel, the following reaction was carried out using 0.250 mol of NH3 and 0.100 mol of N2, 4NH3(l) + N2 (g) = 3N2H4 (l) what is the compositon in moles in the vessel when the reaction is completed? Is the answer: 0 mol NH3, 0.063 mol N2, and 0.188 mol N2H4?

Math
Find the number c that satisfies the conclusion of the Mean Value Theorem: x^3+x-9 [0,2]

Math
Ming dropped a package of 8 light bulbs and 2 of the bulbs broke. Write two equivalent fractions to represent the fraction of the bulbs that broke. Please help

Physics
can someone check? Which has greater volume: 1 kg of gold or 1 kg of water? a. The gold has greater volume. b. The water has greater volume. c. Gold and water have the same volume. Is it a? I know it's not b. The stones in an arch are . . . a. rarefied b. torqued c. under ...

statistics

Dear Kashi, Will you please answer the following questions about your company products advertised in October 2011 Dwell magazine? We are interested ordering some of your products such as snacks. 1.If we finally make a deal, is it possible to start importing your products at ...

Dear Kashi, Will you please answer the following questions about your company products advertised on October 2011 Dwell magazine? We are interested in ordering some of your products such as snacks. 1. If we finally make a deal, is it possible to start importing your products ...

Dear Kashi, Will you please answer the following questions about your company products advertised on October 2011 Dwell magazine? We are interested ordering some of your products such as snacks. 1. If we finally make a deal, is it possible to start importing your products at ...

These wrongs you are referring is about the second email right? Because there I need to focused. I will try

is my corrections not enough? I have to make more? We have to turn the first e-mail into Routine inquiry I made the second e-mail is not right? corrections needed?

This email must me turned into a Routine Inquiry. Hello, I'm currently having a retail company that I import biological products, called 'Healthy life'. I saw your company advertisement on October 2011 in Dwell magazine and I decided to communicate with you. I'...

This email must me turned into a Routine Inquiry. Hello, I'm currently having a retail company that I import biological products, called 'Healthy life'. I saw your company advertisment on october 2011 in Dwell magazine and decided to communicate with you. I'm ...

the amount of \$60 is my wrong. Because of this circumstances, I am requesting a refund of \$100. I believe this is a fair amount due to the fact that municipal tax dollars were spent on maintenance of the parks.

Dear Mr James Nagol I held a family reunion at Whitewater Park on Saturday at the OAK Pavilion. I pay for reservation \$100. i am sorry to say we did not have a good experience. when my guests arrived the picnic site was littered with trash. My family had to spend the first ...

This is the exercise below i'm gonna write my answer: You need to write the Parks Board in your country a request for a refund. You held a family reunion at whitewater park on Saturday at the OAK pavilion which you had reserved for your group at a cost of \$100. when the ...

psy
i don't understand how to do a good outline

psy
yes i would I also have two others also this is everything. · Anna, an adolescent girl, is very much in love with her boyfriend who is three years older than she. He is putting a lot of pressure on her to have sex. At the same time, she is anxious about her parents’...

psy
Anna, an adolescent girl, is very much in love with her boyfriend who is three years older than she. He is putting a lot of pressure on her to have sex. At the same time, she is anxious about her parents’ attitude towards her boyfriend. Her mother constantly warns her ...

algebra
Find all numbers for which the rational expression is underfined 1.-14/25v 2.s^3-9s/s^2 -64

algebra
1.FIND THE LCM OF 10X^7 AND 50X^4 2.FIND THE LCM OF x^2 -36 AND x^2 + 11x +30 3.FIND THE LCM y^3+8y^2+16y, y^2 -8y 4.FIND The LCM Of 15z^2 +60z and 3z^2 + 15z +12

Grammar
In the following sentence, is the word empty an adjective? It seems like it would be a noun/direct object The same with this sentence: The good bike was expensive. Is expensive a noun/direct object, or an adjective?

english
need a poem that is similar in nature to katy perry's firework. can't find anything anywhere. Can anyone help me?

trig
find all the values of x that satisfy the equation: 2sin^2(x) + 1 = 3sin(x).

physics
Two blocks with masses m1 = 10.9 kg and m2 = 79.3 kg, shown in the figure, are free to move. The coefficent of static friction between the blocks is 0.66 but the surface beneath m2 is frictionless. What is the minimum force F required to hold m1 against m2?

algebra

Math
36

Genectics
What are the possible genotypes of a woman who has normal color vision?

light
An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located? answer 15 millimeters.

Calculus
A truck gets 377/x mpg when driven at a constant speed of x mph (between 25 and 75 mph). If the price of fuel is \$1 per gallon and the driver is paid \$8 per hour, at what speed between 25 and 75 mph is it most economical to drive? (Give your answer correct to the nearest full ...

Calculus
A truck gets 377/x mpg when driven at a constant speed of x mph (between 25 and 75 mph). If the price of fuel is \$1 per gallon and the driver is paid \$8 per hour, at what speed between 25 and 75 mph is it most economical to drive? (Give your answer correct to the nearest full ...

Calculus
A truck gets 377/x mpg when driven at a constant speed of x mph (between 25 and 75 mph). If the price of fuel is \$1 per gallon and the driver is paid \$8 per hour, at what speed between 25 and 75 mph is it most economical to drive? (Give your answer correct to the nearest full ...

Science
Examine the obvious environmental impacts as well as significant social and physical ramifications of urban sprawl. What is the relationship between landscape and psychological well being? After defining this relationship, discuss how the presence or absence of natural beauty ...

economics
I need a quote for a positive and normative statement

science
In the United States, we are fortunate to have an abundant supply of food, and much of this is due to our agricultural technology. However, there are many concerns about our food source, including genetically modified crops, the use of more chemicals, and climate change just ...

Math
Is this a rational, irrational, or not a real number the square root of 49 and the square root of -81

American History
Which is most accurate regarding the American political climate between 1876 and 1896? A. The influence of the president over Congress diminished? [B.] The party that won the presidential election also controlled Congress? C. Southern states tended to vote Republican? D. ...

science
Humans are constantly innovating ways to produce and consume material resources.Give specific examples of at least two (2) production and two (2) consumption habits humans have related to material resources.

physics
A 1.2 kg ball is rolling down a friction free ramp at 21 m/s just before it hits level ground. How high was the ball when it started rolling?

physics
A 1.2 kg ball is rolling down a friction free ramp at 21 m/s just before it hits level ground. How high was the ball when it started rolling?

Math

math
in a recent poll of 1,800 adults only 25% of the population approves of the president's performance. how many total people approve and how many total people disapprove of the president's performance? please help!

Psychology
If a negative correlation between two sets of scores is displayed as a scatterplot, the points are clustered in a pattern that Question 5 options: resembles a bell-shaped curve. extends from the lower left to the upper right of the plot. resembles a U-shaped curve. extends ...

Physics
For do I multiply 1/2 x10=5x10=50? SOrry for asking a easy question. I'm not smart.

Physics
1 C 2.D 3.B

Physics
Multiple choice please help. How much kinetic energy does a 1 kg ball have if it has a velocity of 10 m/s? a. 100 J. b. 50 J. c. 10 J. d. 5 J. The airbag in a car works in a collision by . . . a. increasing the time of the impact to the person. b. reducing the impulse to the ...

Physics
How much kinetic energy does a 1 kg ball have if it has a velocity of 10 m/s? a. 100 J. b. 50 J. c. 10 J. d. 5 J.

Physics
Multiple choice. The airbag in a car works in a collision by . . . a. increasing the time of the impact to the person. b. reducing the impulse to the person. c. reducing the momentum of the person. d. increasing the force on the person. A cannonball shot from a cannon with a ...

English
is it okay if you can tell me which part?

English
I need help if the sentence are good and i'm not sure with the underlining. Make up a sentece that contains an adjective cluase, and underline the adjective clause. Sentence #1: Celery, which people often leave uneaten, is very nutritous. Make up a sentece that contains an...

trig
if x=4 tan theta, express cos(2 theta) as a function of x

organic chem
IDK THAT QUESTION BUT I THINK THE ANSWER IS 165.8

statistics
a.a statistics practitioner randomly sampled 100 observations from a population with a standard deviation of 5 and found that x is 10. Estimate the population mean with 90% confidence. Repeat (a) with a sample sixe of 25

printed book

i am only seeing you attitude in my text so i am confuse

the "me attitude" in writing: a. shows the reader you are serving his/her ineterest b. focuses on you and your organization c. places the emphasis on the receiver d. displays a service attitude Im not sure this answer would D be correct?

Which of the followings is NOT characteristic of a good letter to the editor? a. Being rational b. being lenghty c. using good taste d. being fair Is B correct im not sure of this one any other opinions please

Attention, Interest, Desire and Action (AIDA) is used for structuring: a. effective, persuasive communication b. incomplete communication c. the "you attitude". d. avoidance of a "call for action" Is A correct any other opinion please

english
dallas texas

algebra
solve for x and y in the following system of equations. y=3x^2+8x-10 & y=x^2+7x+5 how do you do this ?

algebra
9n=81

what is the range of 4min 30 sec, 5min 12 sec, 4min 24sec, 4min 51sec, 5min and 3sec?

Physics
a 3329lb car traveling initially a speeed of 40 mph CRV(estimated speed at time of impac, brakes had been applied) in an easterly direction crashes into the rear end of a 3430lbs CRV moving in the same direction at 0 mph. How far does the car hit move?

what is molarity of a solution by dissolving 10.0g of acetone, c3h6o, in enough water to make 125 ml of solution?

datebase
What five or six fields will you include in the database?

psychology
. Which of the following is not an early school of psychology? (Points : 1) behaviorism voluntarism nativism functionalism

AP English
What kind of effects do extended metaphors, or conceits have on readers? I know it can help to keep a readers attention, and develop the idea.

PHI103 Informal Logic
three examples of argument in fallacies.

geometry
If the height of a triangle is one inch more than twice its base, and if the area of the same triangle is 20 square inches, find the base and height of the triangle.

fractions
9/16x15/45x71/3=

Organic Chemistry
What are the advantages of using a solvent pair for recrystallization? Select all that apply. A) You can control the solubility of the substance in the mixed solvent. B) You don't have to know the exact amounts of the solvents needed. C) You can quickly make the solution ...

physics
Two forces are applied to ring of a force table, one at an angle 20.0 degrees and the other at an angle of 80.0 degree. Regardless of magnitudes of the forces choose the corect response below. The equilibrant will be in the (a) first qudrant (b) second quadrant (c) thrid ...

physics
To determine the force acting on each mass its was assumed that g=9.80 m/sec2. The value of g at the place where the experiment is performed may be slightly different from value . State what effect it would have on the percentage error calculated for the comparisons. To test ...

Chemistry
for the equilibrium, SbCl3 (s)+H2O <==> SbOCl(s)+ 2HCl (aq)... A.) what reagent would you add to the system to dissolve SbOCl? B.) what reagent would you add to precitiate SbOCl? Help! would i use H2O to dissovle and add more HCL to precipitate??

bryant stratton
provide a detail descripition and definition of medical language and terminology and its components. the narrative should also explore the importance of medical terminology to the medical assisting and medical administrive assisting field while describing the various methods ...

Chemistry
how to find reagents need to dissolve a chemical in a system? If I have a equilibrium equation would I use the chemical on the product side or reactant side to dissolve a compound.

Chemistry
In the haber process for the preparation of NH3 which is given by the equilibruim? N_2_(g)+3H_2_(g) <---> 2NH_3_(g)...... delta H= -92.38kJ State the conditions of concentrations and temperture that will favor production of NH_3_? Please help! would it be high ...

psych
what are some of the limitations in using the Jungian theory while counseling depressed clients?

finance
What are the similarities and differences between net present value and interest rate of return? Which method do you prefer to use in making capital budgeting decisions? Why?

Physics
A car moves in a circular path at 15 mph. Which of the following statements about the cars motion would be correct? a. The cars acceleration is constant. b. The cars velocity is constant. c. The cars speed is constant. d. The cars velocity and speed are constant.

SAT algebra
(x-8)(x-k) = x^2-5kx+m In the equation above, k and m are constants. If the equation is true for all values of x, what is the value of m?

algebra
The answer is C because it is 399 values found and it's close to 400 values

geometry
is it possible that the points a, b,c are collinear but AB + BC not equal AC

geometry
the solution set of x+1=x is

st. edwards
use rounding to estimate 8,267-2,761=

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