Monday

October 24, 2016
Total # Posts: 682

**Bussiness**

I have to find an article (magazine, newspaper, online) from a respected source of business / news content that addresses the impact of global trade on the global, U.S., or local economy. For printed articles, please scan and post as a PDF file. For online content, post the ...

*September 5, 2011*

**algebra**

A jogger leaves home and runs at a constant speed of 4 miles per hour. Nine minutes later, a bicyclist follows along the same route at a constant speed of 15 miles per hour. Find the bicyclist's travel time needed to catch the jogger.

*September 1, 2011*

**Elementray Statistics**

Assume that a population is normally distributed with a mean of 100 and a standard deviation of 20. Would a sample mean of 115 or more be considered unusual? Why or why not?

*August 3, 2011*

**PreCalculus **

Write an equation to construct a function whose graph is like that of y=x^2, except for pieces removed for values between 3 and 5, and 8 and 9. I am not sure how to approach this question. Would I make a piece wise function? PLease helpp brains about to explode!

*July 24, 2011*

**Math**

Oh thank you very much!

*July 23, 2011*

**Math**

How many zeroes in 1070 million? Would that go into billion?

*July 23, 2011*

**PHY [non-calc]**

Resistors R1= 10ohms, R2= 40 ohms and R3= 70 ohms are connected in series. The total resistance in ohms of this combination is: A)0 B)120 C)28000 D) not enough info

*May 31, 2011*

**Spanish**

I want to say "I will let you know when I have more information" in Spanish. I want it to be formal. Would this be correct: Le avisaré cuando tenga más información.

*May 29, 2011*

**Chemistry**

You know the ratio for the moles of sodium to hydrogen from the equation is 2:1 so you can work out the moles of hydrogen. The volume will depend on the temperature and pressure. 1 mole of gas at 25 degrees C and 1 atmosphere pressure has a volume of 24.465 L.

*May 29, 2011*

**Chemistry**

XeF2 is a linear molecule with vibrational frequencies of 515 cm–1 (symmetric stretch), 555 cm–1 (antisymmetric stretch) and 213 cm–1 (bend). A vibrational Raman spectrum is acquired using radiation at 488 nm from an argon-ion laser. Predict, with justification...

*May 22, 2011*

**physics**

In the ground state of the H-atom the electron has a total energy of -13.6 eV. What are (a) its kinetic energy, and (b) its potential energy if the electron is one Bohr radius from the central nucleus.

*May 20, 2011*

**physics**

Consider a H-atom in a magnetic field. Sketch the possible transitions between the n = 3, l = 2 and n = 2, l = 1 levels. Which lines will not appear if we require that ml = 1,0 and -1 only? How many different frequencies will be seen in the spectrum? What will be the ...

*May 20, 2011*

**physics**

An unknown magnetic field produces a set of lines for a transition from a state with l = 3 to one with l = 2, between which there is a maximum energy difference of 6.1x10-4 eV. How many lines are there? What is the magnitude of the field?

*May 20, 2011*

**statistics**

It's 0.162

*May 17, 2011*

**Spanish**

Thank you.

*May 9, 2011*

**Spanish**

I am trying to write an email to a professor in Spain. His title is catedrático and I need the email to be formal but am not sure how to be formal in Spanish. Would this be the correct way to start: Estimado Prof (nombre) I'm not sure whether to use "Prof"...

*May 9, 2011*

**Physics**

Solar heating takes advantage of solar collectors such as the type shown in the figure . During daylight hours, the average intensity of solar radiation at the top of the atmosphere is about 1400 W/m^2. About 50% of this radiation reaches the Earth during daylight hours. (The ...

*May 7, 2011*

**Physic**

Assume all temperatures to be exact. An aluminum spoon at 84 degree C is placed in a Styrofoam cup containing 0.180 kg of water at 12 degree C. If the final equilibrium temperature is 21 degree C and no heat is lost to the cup itself or the environment, what is the mass of the...

*May 6, 2011*

**psyhcology**

in comparision to men with learning disorders, women? A.have higher self-esteem b.have better paying jobs c.out grow their difficulties d.have more relationship problems I chose d but i'm not to sure

*May 5, 2011*

**statistics**

Government Data assign a single cause for each death that occurs in the United States. The data shoe that the probability is 0.27 that a randomly chosen death was due to heart disease, and 0.23 that is was due to cancer. What is the probability that the death was due to some ...

*May 4, 2011*

**math**

equation of the given line in standard form. The line with m = -3/4 and b = -2

*May 1, 2011*

**math**

equation of the given line in standard form. The line with m = -3/4 and b = -2

*May 1, 2011*

**math**

equation of the given line in standard form. The line with m = -3/4 and b = -2

*May 1, 2011*

**art appreciation**

What were the chief problems of construction involved in raising the dome of the Florence Cathedral in an age that did not have today's building technologies?

*April 11, 2011*

**Art Appreciation**

Explain how Florence reflects the ideals of the dominant city-state and how some of the geographical, economical, social, and artistic forces shape this ideal. Use one example from Gardener’s Art through the Ages and one example from the Internet.

*April 6, 2011*

**Physics**

Given that q = +17 mu C and d = 14 cm, find the magnitude of the net electrostatic force exerted on the point charge q2.

*April 3, 2011*

**Calculus**

t 0 3 6 9 12 v(t) 32 35 37 38 41 Using the chart above, find an upper estimate for the distance traveled using n=2 and n=4

*April 2, 2011*

**Few Facts about Vancouver/Paris**

Could I receive more facts that Im not aware of?

*March 30, 2011*

**Few Facts about Vancouver/Paris**

These are facts I have collected about them. They both have a unique atmosphere, lovely streets, and great monuments. They are both livable, and are known to be Metropolitan areas. They are popular tourist destinations. Paris is ranked among the three most important and ...

*March 30, 2011*

**Vancouver**

Are there monuments in Vancouver? Would these be considered as monuments? The Stanley Park Granville Island Robson Street

*March 30, 2011*

**About Paris**

I think Vancouver is only well known for its Stanley park. They both have tall buildings. They both have nightlife. The streets attract large crowds.

*March 29, 2011*

**About Paris**

how are vancover and paris alike? They are both well know, good tourist attraction sites, have many things to explore. Filled with amusement. Umm... would like more ideas..

*March 29, 2011*

**About Paris**

Thanks! I really feel like going there now.

*March 29, 2011*

**About Paris**

Im not sure if Im being specific enough. I want to know the name of the artist district--neighbourhood/quarter. Shouldn't there only be one, because the question asks for only one.

*March 29, 2011*

**About Paris**

What is the quarter of the artists called in Paris? Is it the Pantheon?

*March 29, 2011*

**About Paris**

thank you! Do you know how vancouver and paris are similar?

*March 29, 2011*

**About Paris**

Monuments in Paris... -Grand Palais -Saint Chapelle -Le Louvre -Mur de la Paix -Notre Dame Any others that are well known?

*March 29, 2011*

**About Paris**

How are Vancouver and Paris different from one another? Ive got to name atleast 8 differences between them. 1. Paris has a population over 2 million, unlike Vancouver which only has a couple thousand. 2.The night life is different. The way the French Party. 3.The dressing ...

*March 29, 2011*

**English**

how about replacing never with do not.

*March 14, 2011*

**English**

Which one is the correct sentence? If they both need grammar work do tell. a)This gives evidence that people will work hard, but will never receive a fair deal for their effort. OR b)This gives evidence that people will be working hard, but will never receive a fair deal of ...

*March 14, 2011*

**Geometry **

You are designing dinnerware. What is the length of a side of the smallest square plate on which a 20-cm chopstick can fit along a diagonal without any overhang?

*March 9, 2011*

**College Math ll**

Area of a painting A rectangular painting with a width of x centimeters has an area of x^2 + 50x square centimeters. Find the binomial that represent the length

*February 23, 2011*

**physics**

The meter stick in the drawing can rotate about an axis located at the 20.0-cm mark. The axis is perpendicular to the screen. A force F acts at the left end; the force is perpendicular to the meter stick and has a magnitude of 175 N. A second force, either F1 or F2, acts at ...

*February 11, 2011*

**LA**

what are the 3 most important figures of speech in the poem "Kite is a Victim" by Leonard Cohen? Please explain why tose three are important

*February 7, 2011*

**math**

if the product of two numbers is 180 and the LCM of the two numbers is 60 then how do I determine what the GCF is?

*January 8, 2011*

**8th grade American History**

an artificial waterway constructed to allow the passage of boat or ships

*January 8, 2011*

**math**

How do you multiply -3/5 by -3 and write it as an improper fraction?

*December 7, 2010*

**College Chemistry**

The value of ΔG°f at 25°C for gaseous mercury is 31.85 KJ/mol. What is the vapor pressure of mercury at 25°C? [Hint: calculate the Kp for the reaction Hg(l)=Hg(g)]

*December 6, 2010*

**algebra**

The length of a rectangular field is 50 meters more than twice its width. If the perimeter is 700 meters, find the dimensions of the field.

*December 2, 2010*

**Chem**

Can you please tell me if these are right? A gas has a volume of 2.8 L at a temperature of 27 degrees C. What temperature degrees C is needed to expand the volume to 15 L? (P and n are constant.) I got 1334 degress C Combined gas law problem a balloon is filled with 500.0 mL ...

*November 14, 2010*

**Math**

How do I make a bar graph with this? Mass Distance Mass Distance Empty Full 161 456 420 546 161 273 420 455 161 456 420 456

*November 4, 2010*

**AP US Hist**

What are three reasons the Seven Years' War led to the American Revolution?

*October 30, 2010*

**math**

i am a decimal with my last digit in the hundredths. rounded to the nearest tenth. I am 6.5. Rounded to the nearest whole number. I am 6. if the sum of my digits is 16. what number am i?

*October 30, 2010*

**math**

I have a work sheet that says it has 21 letters

*October 27, 2010*

**Chemistry **

393.7mg

*October 14, 2010*

**8th grade**

Robert Samson-owner of the Samson plantation and father to Timmy and Tee bob and Miss Amma Dean- wife to Robert Samson and mother to Tee bob

*October 8, 2010*

**Space Science**

Which objects in the solar system have been least modified since the formation of the solar system? a)asteroids b)Kuiper Belt objects c)meteoroids d)terrestrial planets e)jovian moons

*September 27, 2010*

**Chemistry**

I need to work out a mechanism for the synthesis of 2-cyclohexylpropanal. I am not sure what the reaction is to make this or what reagents to start from. I thought that maybe it could be an aldol reaction starting from cyclohexanone and propanal but I'm not sure if this ...

*September 5, 2010*

**math**

ok wow your weird

*August 31, 2010*

**Philosophy**

How would Hume criticize a proof of God (St. Anselm or St. Aquinas)? 2-3 pages min 500 word essay with quotes.

*July 21, 2010*

**EARTH SCIENCE**

You are given a 6-month assignment by your employer to work at a remote location in Australia. In order to pack as lightly as possible, you try to research the climate of a small town in Australia. There is little data since no major cities are located within 300 miles of the ...

*July 13, 2010*

**geometry**

Point P lies in plane M. How many circles are there in plane M that have center P and a circumference of 6ㅠ inches? a) none b) one c) two d) four e) more than four

*July 11, 2010*

**math**

5/0=undefined

*July 4, 2010*

**math**

Remember m is the slope and b is the y-intercept So first isolate y, 5x-2y=-1 -2y=-5x-1 y=5/2x+1/2 Therefore, the slope is 5/2

*July 4, 2010*

**math**

yeah, true. For x intercept, sub y=0 into the equation, and you'll get 13/8 For y intercept, sub x=0 into the equation and you'lll get 13/3

*July 4, 2010*

**Lit.**

Thanks again! (-:

*July 4, 2010*

**Lit.**

The rising action in a drama usually happens near the beginning. True or False? Is it True? Thanks in advance.

*July 4, 2010*

**history**

Compare England in the 17th century with other absolutist regimes on the continent of Europe. How did the English situation differ from that of absolutist states? What was the major reason for England’s exceptional situation?

*June 23, 2010*

**history**

How and why did England avoid the path of absolutism?

*June 21, 2010*

**Chemistry**

200 g of a non-electrolye is dissolved in 1000 g of water. The boiling point of the solution is then measured to be 101.5 C. What is the molar mass? (the Kb for water is 0.51 C/m) I know deltaT = 0.51 C/m but where do I go from there?

*June 8, 2010*

**chemistry - helium**

Hello. I was just wondering are there any tests for helium?

*June 2, 2010*

**Chemistry Bonding**

Scandium Sulfide. Would i be correct in thinking that the bonding associated with this compound is Ionic. I think this as the two ions involved are oppositely charged? If im wrong could you please tell me why. Thanks so Much in Advance.

*June 2, 2010*

**algebra 2**

3b^2+15b/2b^3-50b

*May 13, 2010*

**Algebra 2**

how to simplify algebraic fractions?

*May 13, 2010*

**life science**

how have case studies been used to help develop our understanding of how the brain works?

*May 2, 2010*

**microbiology**

whats the 3 major roles the microbiology laboratory (microbiologist) is involved with in the diagnosis of bacterial infections.

*April 29, 2010*

**algebra**

An object is released into the air at an initial height of 6 feet and an initial velocity of 30 feet per second. The object is caught at a height of 7 feet. Use the vertical motion model, h = -16t^2+vt+s, where h in the height, t is the time in motion, s is the initial height...

*April 28, 2010*

**Voltage difference**

I am trying to understand what the effects of a voltage difference would have in the method of electrostatic charge spray painting.. Any one?

*April 28, 2010*

**Science PHYSICS**

Ok thanks, so the transfer of energy is work done by the body? to clarify ... As the diver walks up the steps chemical energy is transferd through work and converts into GPE and kinetic energy. what is the energy transfer to begin the dive? chemical? once the dive has begun ...

*April 27, 2010*

**Science PHYSICS**

but kinetic is used to get to the top of the steps?

*April 27, 2010*

**Science PHYSICS**

I am trying to gain a understanding of the transfers and conversions of energy whilst the subject (being a diver) goes through its motions. Maybe i should be clearer .... SO as the diver makes his way to the top of the steps chemical energy is transferred from the body to the...

*April 27, 2010*

**Science PHYSICS**

Hi there, would someone be able to tell me if this is right or almost right or really not right?! The scenario being explaining the transfers and conversions of energy of a diver. from walking up the steps to standing at the top of platform to jumping into pool and to start ...

*April 27, 2010*

**science**

how do you find the power when they give you random weird information

*April 23, 2010*

**trig**

hey. show 2sin(pi/14) is a solution to x^3-x^2-2x+1=0 and hint: let x=2sinu and sin(7u)=1 i can't seem to solve when i sub in the x value. how can i relate this to the seventh root of inifinity. i multiplu by sin^4 but they it just doesnt work.

*April 23, 2010*

**Chemistry**

What would be the product of the reaction of 4-methyl pyridine with Ac2O/AcOH and PhCHO? I'm really stuck on this. I'm guessing the pyridine will attack the anhydride and form an acyl pyridinium ion but I'm not sure where to go from there. If that reacts with AcOH ...

*April 21, 2010*

**physics**

If you throw a ball straight out horizontal to the ground and your friend drops a ball from the same height, will the balls hit the ground at the same time?

*April 21, 2010*

**science**

Between 1960 through 1980 which year produced the greatest percentage of fish?

*April 19, 2010*

**Math**

show me the steps to solving this problem? 3k/5+44=12k/25+8

*April 14, 2010*

**social studies**

athensm had the first democracy or monument ?

*April 13, 2010*

**Chemistry**

What would be the product of a reaction between methanal and pyrrolidine in acid? I know that normally a reaction between a carbonyl and a secondary amine would form an enamine. Here I am confused because there are no hydrogens that can be removed to form the enamine as this ...

*April 7, 2010*

**Organic chem**

Why can't anybody help me?

*April 5, 2010*

**Organic chem**

Suggest a reason why the trans form of benzalacetophenone if formed in prefernce of the cis form. What does the cis form of this compound look like?

*April 5, 2010*

**quantum mechanics**

Write the Hamiltonian operator for 2 electrons in a 1D box of length a. I know that the Hamitonian is a sum of the kinetic and potential energies. I was thinking that for 2 electrons in a 1D box it would be: -2((hbar^2)/2m_e)(d^2/dx^2)) + Coulomb interaction for 2 electrons I ...

*April 5, 2010*

**astronomy Confuse**

Time dilation is the theory of time relative to motion. It is the principle that time elapsed is relative to motion, such that time passes more slowly for a system in motion than for one at rest relative to an outside observer. Further, as predicted by Einstein's special ...

*March 28, 2010*

**Geology**

Im after info that will help me answer what the relevance of the age of the oceanic crusts and the continental crusts within the south american plate Are there presence of hotspots on the south american plate? what is the process that is responsible for the change in area of ...

*March 25, 2010*

**Science PHYSICS**

THANK YOU what is the magnitude of acceleration that the force 5.0 x 10³ N causes when applied to a vehicle with a mass of 1.1x10³kg??? How do i present the answer for this ?

*March 24, 2010*

**Science PHYSICS**

SO desperate with help with this. What is the magnitude of the acceleration that this force will cause when applied to a car with a mass of 1.1x10³Kg Then calculate the final speed of the car (above) assuming that it was standing still initially and that the force of 5.0 ...

*March 24, 2010*

**7th grade science**

what is the position of the diaphram when you make it inhale and exhale?

*March 15, 2010*

**Chemistry**

OK thank you so much! I was wondering whether or not there would be 2 OH ions to account for. Thanks again!

*March 14, 2010*

**Chemistry**

If 4.56 grams of NaOH and 56.3 grams of Ca(OH)2 are added to enough water to make 1.50 L of solution, what will the pH be?

*March 14, 2010*