Tuesday

July 29, 2014

July 29, 2014

Total # Posts: 1,166

**Chemistry**

To an initially evacuated 50.0L container maintained at 155C were added 3.20g of gaseous xenon and 4.00g of gaseous fluorine. A spark was used to initiate reaction between xenon and fluorine, and gaseous xenon hexafluoride was the sole reaction product. What was the pressure i...

**7th grade **

i need help on probability in math

**physics**

A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/min. When switched off, it rotates through 54.0 revolutions before coming to rest. Find the constant angular acceleration of the centrifuge in rad/s^2.

**healthcare mgt-college**

You are a new administrator at a hospital, the icu & er are suffering a shortage of respiratory therapists, you need to gather information for a meeting with them, what information do you need before the meeting? develop a tactical plan, what are the major issues? how does it ...

**Chemistry**

How much vinegar at 5% acetic acid concentration would be required to neutralize 100mL of 0.01 M NaOH? (Assume a density of vinegar to be 1.01g/mL)

**college**

· Identify two different points of view for the topic from the list in Appendix B that you have chosen. Choose the point of view you will use in your paper and explain why you have chosen it.

**Math**

i am greater than 30 and less than 40. the sum of my digits is less than 5.

**physic**

if a tape is wound around a cylinder at a rate of 1 rad/s for a half hour, if each rotation deposits one layer of tape and if the final difference between inner ad outer radii of the winding in one cm, what is the thickness of the tape?

**math**

Jamal is fencing a rectangular field that measures 37 ft by 27 ft. How much fencing should he buy?

**chemistry**

A 2.50X102 g sample of an unknown hydrocarbon contains 3.28X101 g of hydrogen. How many moles of carbon does it contain?

**chemistry**

what is the empirical formula for a compound whose molecular formula is C2Cl6

**math**

total profit made by McDonald’s in 2002.

**physics**

If i have 3 different uncertainties how do i get the average uncertainty of the three? For example ±.3 , ±.2 , ±.3 how do i find the average uncertainty of the three?

**9th grade**

This is Geometry homework 7x+2y=10

**allied health**

following hipaa regulations

**Physics**

I really need help... You are on a treasure hunt and your map says "Walk due west for 52 paces, then walk 29.0° north of west for 39 paces, and finally walk due north for 25 paces." What is the magnitude of the component of your displacement in the following dire...

**physics**

hey mimi what was your final answer? i have a similar problem and im trying to see if my answer is wrong or not.

**AP English Lit.**

So I'm doing an essay about the Mosque and being built near Ground Zero, but I have no idea on how to start my thesis. My opinion, to me, I don't really care because people are entitled to their opinion, which it should be built or not. Any ideas?

**chemistry**

How many mole of carbon are needed to react with 60 mol of sulferdioxide?

**health**

how do you distinguish between a management, non-training and training issue? What are some examples of each type of issue?

**NewGeometry**

Line segment XY has a midpoint of L. 1/3XY = 3. What is the midpoint of XY?

**Chemistry**

what molarity does a solution with 17.1 grams of sugar and 500 mL of distilled water have?

**Geometry**

midpoint of L. 1/3XY = 3. What is the midpiont of XY?

**spanish**

Hello, I am in spanish 2, and we are studing indirect/direct object pronouns and preterite tense. We were supposed to write a paragraph on what we did this weekend. I was wondering if someone could look over my paragraph and see if there are any errors. Thank you! Últim...

**algebra**

Solve: 2 - |1-x| < 1 thanks!

**statistics**

Given a data set with the mean = 44 and the standard deviation = 15, what is the value of the Third Quartile?

**physics**

Speedy Sue, driving at 30.0 m/s enters a one-lane tunnel. She then observes a slow-moving van 155m ahead traveling at 5.00 m/s. Sue applies her brakes but can accelerate only at -2.00m/s/s because the road is wet. Will there be a collision? If yes, determine how far into the t...

**Chemistry**

Thank you Dr. Bob. You were correct in your assumption. I had been staring at that problem for too long...It's very simple now that I see your solution. Thanks again for your help!

**Chemistry**

I need help with a concentration question. I need to know how to calculate the product with the higher concentration. $6.50 for 185 mL and the concentration of the active ingredient is 0.005% OR $7.00 for 165mL and the concentration of the active ingredient is 0.700%. I need t...

**accounting**

Write a 350- to 700-word summary indicating the ways that this memo should be changed based on its audience. In the summary, identify how and why the audience affects the style of communication. Include the following:

**US101**

Have you ever use mnemonics to remember something complicated? What way you might you use mnemonics to be a more effective college student and adult learner..

**Communication and Gender Studies**

Thanks for the suggestion! :)

**Communication and Gender Studies**

Find one or two distinctly male or female characteristics, gender related either masculine or feminine and then explain how this idea is perpetuated in society.

**Drama**

One difference between tragedy and comedy is that tragedy A. uses supernatuarl elements B. usually features an extraodinary hero. C.makes us laugh at ourselves,not others. D. uses metaphors and analogy to make its point.

**sociology**

You are a sociologist who uses the conflict perspective to study various aspects of our society. How do you think you would interpret the practice of prostitution? Contrast this view with the functionalist perspective. Do you think your comments would differ if you took the fe...

**sociology**

Of the different forms of social structure described by Durkheim, Tonnies, and Lenski, which comes closest to matching your social setting? Use the following terms in your explanation: status, role, primary group, and secondary group.

**CJS/210**

• Write a 700- to 1,050-word paper in which you analyze the ethical and deviant behaviors in policing. Complete the following in your paper: o Define ethics. o Describe the nature of ethics and their role in policing. o Identify the ethical standards in policing. o Identi...

**Cost Accounting**

What are the differences between job-cost and process-cost systems? When would it be appropriate to use each type of system? How does each system affect the cost of a product?

**Cost Accounting**

What are the differences between a direct cost and an indirect cost? Which is the more difficult cost to track? Why? How do indirect costs affect the cost of a product? Should indirect costs be included in product cost? Why or why not?

**Global History**

How did geography both help and hinder the peoples of Africa?

**Global History**

How did geography both help and hinder the peoples of Africa?

**psychology**

As we age, our physical functioning deteriorates. This is most likely due to reduced efficiency in basic cellular processes. One cause of this is thought to be

**science**

howwould u define these words cell, organelle, cell theory, cell wall , cel membrain, nucleus, organ/system tissue.

**algebra**

3 wk trip with a budget of $600 for rental car. Rental rates are $135/week plus $0.17/km. write a formula to show the number of kilometers the family can travel and how many kilometers can they travel based of formula

**Math**

Staley Watch Company reported the following income statement data for a 2-year period. 2008 2009 Sales $210,000 $250,000 Cost of goods sold Beginning inventory 32,000 44,000 Cost of goods purchased 173,000 202,000 Cost of goods available for sale 205,000 246,000 Ending invento...

**Accounting**

Jones Company had 100 units in beginning inventory at a total cost of $10,000.The company purchased 200 units at a total cost of $26,000. At the end of the year, Jones had 80 units in ending inventory. Instructions (a) Compute the cost of the ending inventory and the cost of g...

**marketing**

Demarketing.

**5th grade**

DrBob222 is correct

**math**

there is a circle with abcd and point at the d, there is a dice and the only side you see on the dice is two three five here is the equations P(d, 4) =

**math**

Two dice are rolled. What is the probability that the sum of the dots on the upward faces is NOT 12

**College Physics**

so i figured it out....its simply the y* t' = answer

**College Physics**

Use the relativistic coordinate transformation (x, y, z, t) − (x′, y′, z′, t′) shown and given below where the latter frame S′, (x′, y′, z′, t′), has a velocity 2.69813 × 108 m/s in the positive direction relati...

**College Physics**

delta wavelength=.00243(1-cos theta)

**College Physics**

An x-ray photon collides head-on with an electron and is scattered directly back at 160◦ to its original direction. What is the shift in the wavelength of the incident x-ray? do i need to figure out the "compton shift" in order to solve..can someone please show...

**College Physics**

thank you very, i did the calculations and it was simple math after your explanation.. i got answer as 17.36 MeV =]

**College Physics**

A gamma ray (a high-energy photon of light) can produce a particle- antiparticle pair, each particle with mass 8.68 MeV/c2 when it enters the electric field of a heavy nucleus: γ ! λ+ + λ− . What minimum γ-ray energy is required to accomplish this tas...

**Science-Biochemistry**

What was the alcohol percent by weight in your sample with the most gas production (glucose; which gave 30 mL of CO2)? Remember that the temperature was 40 degrees C and assume the atmospheric pressure was 101.3 kPa.

**Physics**

Thank you so much! I wasn't understanding the format.

**Physics**

The displacement of an object in SHM is given by y(t) = (7.1 cm)sin[(1.64 rad/s)t]. What is the frequency of the oscillations in Hz? I'm completely stuck here. I was thinking that frequency = 1/t. I'm stuck with the information given. Please help!

**Physics**

A 0.56-kg mass is suspended from a string, forming a pendulum. The period of this pendulum is 3.6 s when the amplitude is 2.2 cm. The mass of the pendulum is now reduced to 0.27 kg. What is the period of oscillation now, when the amplitude is 2.5 cm? Give answer in seconds. I ...

**keyboarding and word processing**

1.Secretary A will use “Sincerely” as the complimentary closing of a letter to a colleague. Secretary B will use “Cordially” as the complimentary closing of a letter to a friend. Which secretary is using the correct closing A. Only secretary A C. Both secre...

**math **

I have a question about sets. If you have uppercase letters and lower case letters and they question is asking are these equal or equivalent or neither. I believe it would be equivalent because they are the same but different. Please help thanks

**physics**

Thank you. I don't know why I was over looking that.

**physics**

If a particle of mass 5.7 kg is moving east at 10 m/s and a particle of mass 19 kg is moving west at 10 m/s, what is the velocity of the center of mass of the pair? Give answer is m/s to the west. I tired to use: Vcm = mv/M. I plugged in (5.7)(10) + (19)(10) / 5.7+19. = 57+190...

**physics**

A toy car with a mass of 120 g moves to the right with a speed of 0.56 m/s. A small child drops a 25.0-g piece of clay onto the car. The clay sticks to the car and the car continues to the right. What is the change in speed of the car? Consider the frictional force between the...

**Math**

Line L has equation of 4x + 3y = 7. Find equation of the line that is perpendicular to L which passes through the point of intersection of L and the y-axis. Give answer in the form ax + by +c = 0.

**Physics**

A block of mass m1 = 4.1 kg rests on a frictionless horizontal surface. A second block of mass m2 = 1.7 kg hangs from an ideal cord of negligible mass that runs over an ideal pulley and then is connected to the first block. The blocks are released from rest. (a) Find the accel...

**Physics**

A skydiver, who weighs 682 N, is falling at a constant speed with his parachute open. Consider the apparatus that connects the parachute to the skydiver to be part of the parachute. The parachute pulls upward with a force of 669 N. (a) What is the force of the air resistance a...

**5th grade**

How to figure out if a fraction is in its simplest form.

**geometry**

A 6-foot ladder touches the side of a building at a point 5 feet above the ground. At what height would a 15-foot ladder touch the building if it makes the same angle with the ground as the shorter ladder?

**social studies**

in the south, by 1863, what were the ages for conscription ?

**social studies**

the telephone company helped to employ women with the invention of what ?

**AP Chemistry**

Write the expression of for the base dissociation constant for hydrazine, N2H4, a weak base. Hydrazine reacts with water to form the N2H5+ ion.

**AP Chemistry**

Rank these compounds in order of increasing hyroxide ion concentration: weak base, weak acid, strong base, strong acid.

**12th grade**

puritans

**chemistry**

. Do you think that determining the volumes of your cylindrical metal samples by measuring their dimensions and calculating would be more or less accurate than determining these volumes by water displacement?

**AP Chemistry**

Iron has a density of 7.86 g/cm3 and crystallines in a body-centered cubic lattice. Show that only 68% of a body-centered lattice is actually occupied by atoms, and determine the atomic radius of iron.

**AP Chemistry**

You are given a small bar of an unknown metal X. You find the density of the metal to be 10.5g/cm3. An x-ray diffraction experiment measures the edge of the face-centered cubic unit cell as 4.09 A. (1A=10^-10m) Identify X.

**AP Chemistry**

Why is HCI added on a drop-by-drop basis to ensure complete precipitation of Group 1 chlorides initially, rather than just added all at once? HCI forms a mixture of AgCI, PbCI2, Hg2CI2

**AP Chemistry **

I dont have one.

**AP Chemistry **

What is the specific solubilities (in g/100 g H2O) in both cold and hot water for AgCI, PbCI2, and Hg2CI2?

**Physics**

Why is it that when water is in a bucket and spinning around in a circular motion and then upside down the water in the bucket does not move or spill? Am not sure on what terms to use to explain why this happens

**Media Law**

Ok, thank you!

**Media Law**

What about sensitive national security meetings? Should the media have access to these too? How about military meetings or Court Martials?

**Media Law**

What are the reasonable limits in which the media should be allowed to cover governmental meetings in the media role of informing the electorate of the activities of government?

**2nd grade**

You have to find out which numbers add up to 8. So start with 43 and work your way up.

**college**

how many molecules of h20 are present in 75.0g of h2o

**Social Studies**

My daughter is in the 5th grade and has to prepare a totem pole based on her family's history...I know how to make a totem pole, but how do you make one based on your family history?

**Physics**

I got the answer! Thank you! Can you help me with the second problem please?

**Physics**

A 61-kg person on skis is going down a hill sloped at 30¡Æ from the horizontal. The coefficient of friction between the skis and the snow is 0.16. What would be the magnitude of the acceleration? An crate weighing 576 N is resting on a plane inclined 29¡&AEli...

**Math**

What does the representational form of a number mean? For example the repersentational form of the number 3758.

**Communication Law Studies**

Can democracy be established and function without assurances of freedom of speech and freedom of press?

**English/Grammer**

Can you tell me what the simple subject of this sentence: Several of the caves are open to the public. I say it is caves. My teacher said it was several. I thought that several would be the complete predicate. Can you help

**math**

during the winter bill blank has been quite concerned about the total number of gallons of home heatiang fuel he used. last winter he used 1505 7/8 gallons of oil. here is a summary of this years usage... dec. 525 1/4 jan.488 5/8 feb. 481 3/8 mar.255 1/3 is it more of less tha...

**statistics**

a set of building blocks includes blocks of various shapes and colors. if 10% of the blocks are cubes, and 40% of the cube blocks are red, then what percentage of the blocks are red cubes

**environmental management**

Will gaseous ammonia at 132 degree C liquefy when 100 atmospheres of pressure is applied to it? Why or why not?

**health**

How might Michael’s or Jennifer’s situation illustrate adjustment? How might this situation become an opportunity for personal growth?

**psy**

3. How might Michael’s or Jennifer’s situation illustrate adjustment? How might this situation become an opportunity for personal growth?

**Algebra**

What is the numerical value of the equations below? Thank you! 24*e^(0.06*384)

**Algebra**

Thanks! So then the final answer is that (x)/(x^2-4) (x)/(x-2) (x+2) Standard form then this = y = 0?

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