Thursday
July 2, 2015

Posts by John


Total # Posts: 6,733

PHYSICS
'show that a 2.5m length of wire with cross section area 0f 1.0mm and resistance of 0.75ohms has a resistivity o f 3.0 ×10-7'
June 30, 2015

Chemistry
If 100.0 mL of 0.150 M sodium nitrate is added to 50.0 mL of 0.150 M sodium carbonate, what is the resulting molar concentration of the sodium ion?
June 26, 2015

Math
My hundreds digit means nothing. Six more than my hundreds digit is my thousand’s and ones less than my thousands’ is my ten thousands. My tens digit is four more than my hundreds and my ones digit is five more than my tens digit. Question: What number am I?
June 25, 2015

Math
How do you solve the equation for finding the principal when the interest, rate, and time are given? I know the formula P=Interest over rate x time. how do you find the solution or amswer?
June 19, 2015

algebra
Since you cannot divide 4x^2 into 2x+1, the quotient would be zero with a remainder of 2x+1. Which can also be written as 0 (2x+1)/(4X^2 +8X+5)
June 16, 2015

university
A uniform electric field of magnitude 260 V/m is directed in the positive x direction. A +14.0 µC charge moves from the origin to the point (x, y) = (20.0 cm, 50.0 cm). (a) What is the change in the potential energy of the charge field system?
June 15, 2015

physic
if you have a intial object going 1m/s to the right then after 1.2seconds its going 0.5m/s to the left. whats is the constant acceleration?
June 15, 2015

Science living environment Regents
When you change the dna code to mRNA, will A become U or T?
June 13, 2015

Alg 2 HELP!
x = -b/2a which gives you a turning point which will help you come up with the max or the min. Once you fine x, then you can find y by substituting back into the original equation. Range can also be found by using this turning point.
June 12, 2015

Statistics
The total area under the control distribution curve is equal to a probability of what?
June 11, 2015

Math/Physics
No way to solve?
June 6, 2015

Math/Physics
Given the following vectors, where Vector A is 6.3 meters and Vector B is 3.5 meters, determine the magnitude of the following vector sums: A+B, A-B, B-A I tried to do magnitude such as A+B = square root (6.3)^2+(3.5)^2 = 7.2 then A-B = square root (6.3)^2-(3.5)^2 = 5.2 then ...
June 6, 2015

Chem.
Thanks
June 4, 2015

Chem.
A gas bottle contains 0.250 mol of gas at 0.973 bar pressure. If the final pressure is 1.165 bar, how many moles of gas were added to the bottle?
June 4, 2015

paramedic science
The male person on-scene is complaining of abdominal pain but refuses any treatment or transport going against your advice. He has obvious bruising to his abdomen consistent with a seatbelt injury. Using Queensland Ambulance Service protocols as a guide - discuss what steps ...
June 4, 2015

physics
A person opens a door by applying a 11-N force perpendicular to it at a distance 0.90m from the hinges. The door is pushed wide open (to 120 ∘ ) in 2.2s How much work was done? What was the average power delivered?
June 3, 2015

physics
What is the acceleration (in m/s^2) of a vehicle that changes its velocity from 85 km/h to a dead stop in 13 s?
June 3, 2015

physics
A person opens a door by applying a 11-N force perpendicular to it at a distance 0.90m from the hinges. The door is pushed wide open (to 120 ∘ ) in 2.2s How much work was done? What was the average power delivered?
June 3, 2015

statisic
I will get you started. You want see if .85 is different from .70 The numerator of your fraction will be: .85 - .70 Always subtract the population proportion from the sample proportion. The .15 has to be divided by the standard deviation. Do you have that formula? The value ...
June 2, 2015

Math
Christine's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Christine $5.85 per pound, and type B coffee costs $4.40 per pound. This month, Christine made 174 pounds of the blend, for a total cost of $906.25. How many pounds of type ...
May 31, 2015

Reading
Oh ok is it A then?
May 28, 2015

Reading
Wouldn't it be the opinion of what you would think a wise person would do?
May 28, 2015

Reading
Every profession or field invents its own specialized words, in order to express complicated ideas without excessive wordiness.
 
Business-speak contains some useful phrases, but also suffers from three major problems: unnecessary words, euphemistic words, and ...
May 28, 2015

Reading
For example, "vis-a-vis" is often used instead of the simpler "in relation to" or "compared to." In this case, the business-speak phrase isn't much shorter than existing phrases, but it is definitely more obscure. This is a step in the wrong ...
May 28, 2015

Reading
Business-Speak In recent years the business world has coined its own unique, jargon-filled sub- language. This sub-language is often called "business-speak" (or "manager-speak," since some of its most enthusiastic users are managers and executives).
May 28, 2015

English
United Nations, 310, 314, 362 charter of, 311

 Declaration of, 309

United States, 225, 238, 275, 289

 in Big Four, 322, 325-7

 in League of Nations, 299

 Lend-Lease policy of, 307

 Neutrality of, 305...
May 28, 2015

English
Pandas

Eating Habits......................................... 1-15

Reproduction......................................... 16-20

Geographic Areas ................................. 21-22

Endangered Species...
May 28, 2015

English
Thank you!
May 28, 2015

English
Count' -verb 1. to list numbers sequentially 2. to add up; enumerate 3. to include in a reckoning 4. to deserve consideration, to have merit -noun 5. the act of counting, a calculation 6. the total number resulting from a count 7. Baseball, the number of balls and strikes ...
May 28, 2015

Language Arts
I think number one is After you sign the agreement, it is too late, of course, to change your mind.
May 28, 2015

Language Arts
I think number two is Importantly, some of the best-preserved early human remains have been discovered in peat bogs.
May 28, 2015

Language Arts
1)The sentence says: After you sign the agreement, it is too late, of course, to change your mind. After you sign the agreement it is too late of course, to change your mind. After you sign the agreement, it is too late of course to change your mind. After you sign the ...
May 28, 2015

English
That is how I see it. Except for where it says counters, it should say counts.
May 27, 2015

English
Count' -verb 1. to list numbers sequentially 2. to add up; enumerate 3. to include in a reckoning 4. to deserve consideration, to have merit -noun 5. the act of counting, a calculation 6. the total number resulting from a count 7. Baseball, the number of balls and strikes ...
May 27, 2015

English
While dragonflies have several traits that inspire wonder, many people believe these flying insects are pests. Dragonflies spend much of their lives around water. They not only lay their eggs in or near the water, but their ??? young also develop in the water. In fact, ...
May 27, 2015

English
Thank you!
May 27, 2015

English
Which of the following sentence from the passage contain an opinion A) Snow blowers (also called snow throwers) can make the sometimes-difficult often unpleasant task of clearing snow from sidewalks and driveways much easier. B) Most snow blowers are gasoline-powered, though C...
May 27, 2015

English
Which of the following would be considered primary sources for this passage? manufacturer product manuals product reviews on the internet manufacturer warranty statements critical reviews in a trade journal Based on the passage, which of the following purchases makes the most ...
May 27, 2015

English
Snow blowers (also called snow throwers) can make the sometimes difficult, often-unpleasant task of clearing snow from sidewalks and driveways much easier. Before making a purchase, however, it’s best to learn a few snow blower basics. Most snow blowers are gasoline ...
May 27, 2015

Reading
But I think it could also be persuasive.
May 26, 2015

Reading
Which of the following writing styles best describes this passage? Descriptive Creative Technical Persuasive is it descriptive
May 26, 2015

Reading
News reporting Time magazine made waves in 2006 when, instead of selecting a politician, entertainer, or activist as its Person of the Year, it selected "you." The magazine's intention was to illustrate how millions of user-post blogs, videos, pictures, and other...
May 26, 2015

reading
help
May 26, 2015

English
Extending her arms over the left-field wall,the baseball plummeted toward the fan,and she caught it cleanly on the fly before displaying the home run ball for all to see. a. Extending her arms over the left-field wall b Toward the fan c On the fly d Before displaying the home ...
May 26, 2015

English
Then perhaps D. It seems to be the only one left that could start off the paragraph.
May 26, 2015

English
I meant to say A, is that the one you disagree with?
May 26, 2015

English
i meant A
May 26, 2015

English
Which of the following sentence orders best forms an organized, logical paragraph? 1. Planning for a test involves determining the time needed for studying, reviewing notes and previous assignments, and prioritizing the content matter to be studied. 2. Students should ...
May 26, 2015

english
yes. Thank you
May 26, 2015

english
In a days work,the employees met their goals for the week. a days" b employees' c day's d employee's i think it is C
May 26, 2015

English
I did, thank you.
May 26, 2015

English
nothing else seems to make sense
May 26, 2015

English
it should still be C right
May 26, 2015

English
That's how it is
May 26, 2015

English
Which of the following sentences is punctuated correctly? A carpenter must use certain tools, hammers, saws, chisels, to finish a job. A carpenter must use certain tools hammers, saws, chisels -to finish a job. A carpenter must use certain tools – hammers, saws, chisels ...
May 26, 2015

english
i meant B, sorry
May 26, 2015

english
there's a period after the first one also
May 26, 2015

english
yes please, I guess
May 26, 2015

english
Which of the following sentences is written correctly? Mother gets a bit of family news, whenever my aunt visits her Mother gets a bit of family news whenever she visits my aunt. Whenever Mother and my aunt visit, she gets a bit of family news. Whenever Mother visits my aunt ...
May 26, 2015

English
yes, therefore it should be subject-verb agreement. right?
May 26, 2015

English
I did not see a nonessential clause, so I didn't think it could be A
May 26, 2015

English
i think D because there's no comma after stating.
May 26, 2015

English
Their professor, who was known for his imposing demeanor, looked around the classroom before stating. "Each of you students are responsible for arriving to class on time" Which of the following language conventions is violated in the sentence above? a.Punctuation for...
May 26, 2015

english
Thank you, and yes there's supposed to be a period at the end.
May 26, 2015

english
Which of the following sentence correctly follows the rules of punctuation and capitalization? There are two main sources of water pollution: Sewers and factories There are two main sources of water pollution: sewers and factories There are two main sources of water pollution...
May 26, 2015

Chemistry
You are given 75mL of 1mol/L NaOH and 75 mL of 1mol/L HNO3 at atmospheric pressure. After mixing the two compounds, he measured a rise in temperature from 25°C to 32°C. Find the change in energy of the system in kJ/mol. (Known: Density of aqueous solution is 1.00g/mL ...
May 26, 2015

Biology
How a radioactive element will decay over time?
May 25, 2015

Chem
I still am lost on how to find OH- Kw being 1 x10^-14 could leave any possibility for H
May 20, 2015

Chem
Mostly the H+ is what is confusing me
May 20, 2015

Chem
Compute values for [H] [OH] and pH of the following aqueous solutions. Tabulate the answers for comparison. Spell out the reasoning in each calculation a) 0.010M HCL b)0.0010M NaOH c) 0.010 N Ba(OH)2 (strong electrolytes assumed to be 100% dissociated.
May 20, 2015

pre-algebra
55=8-6t+3+2t
May 19, 2015

Math
A spherical water balloon has a diameter of 10 cm. How much water is needed to fill the balloon, in cubic centimeters? Round your answer to the nearest centimeter. (Use 3.14 for π.)
May 19, 2015

L A
2 is right
May 18, 2015

education
Have you changed in regards to how you work with children?
May 18, 2015

Calculus
Please check my answers. Solve the following equations and/or system of equations for the unknown variables. 1. x^2-3x-12=0 x= 3 + sqrt(57) / 2, x= 3 - sqrt(57) / 2 2. x+y=8 , 3x+2y=2 x=-14, y=22 3. 3x + 2y =10 , x+y=5 , y+z =9 x=0,y=5, z=4 4. 1/x-p1z=0, 1-p2z=0, I-p1x-p2y=0 ...
May 18, 2015

education
Has your understanding of young children changed as a result of your practicum experience? Explain. can anyone explain what this question is asking for?
May 18, 2015

Physics
See I having trouble with this question because I could just used - GM1M2/R but this is respect to Earth. So I have no idea how to set this up.
May 14, 2015

Physics
A satellite of the Earth has a mass of 1550 kg. It orbits Earth with a mean radius of orbit of 7.00 x 10^6 m. a) What is the gravitational potential energy of the satellite with respect to Earth?
May 14, 2015

science please help
after the dna strands are separated, which of the following is the next step of DNA replication in the S phase of the cell cycle? Action of helicase formantion of RNa primer breaking go hydrogen bonds joining of nucleotides i think either B or D
May 13, 2015

science please help
in evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following observations provides the most convincing support for hypothesis? a) there are more types of RNA than there are DNA b) RNA contains combined catalytic, structural, and genetic ...
May 13, 2015

science please help
after the DNA strands are separated, which of the following is the next step of DNA replication in the S phase of the cell cycle? A) Action of helicase B) formation of RNA primer C) Breaking of hydrogen bonds D) joining of nucleotides i think it is either B or D
May 13, 2015

science please help
therefore it would be B since mitochondria deals with atp right??
May 13, 2015

science please help
i was debating between B and A. but I am a little more on B
May 13, 2015

science please help
Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced exhaustion? a. inefficient protein production b. insufficient mitochondrial function c. impaired urea elimination d. absence of oxygen transporters on the cell ...
May 13, 2015

science @elena please help
it has been hypothesized that chloroplasts originated from photosynthetic cyanobacteria that became symbiotic inside a host cell. Which of the following observations provides the strongest evidence for this suggestion? A) microscopically, chloroplast appear similar to ...
May 13, 2015

math
30 - 24 = 6 students were absent, therefore 6 (who were absent) divided by 30 (the total number of students) which becomes 0.2 but you should multiply by 100 in order to get percentage. Therefore, 0.2 x 100 = 20%
May 13, 2015

grade 5 math
In order to figure out percentage you should know which numbers are dividing by each number. Based on the question, 240/3000 = 0.08 However, when you want to get a "percentage" you should multiply by 100 which becomes 8%. Therefore 8% of teeth was lost.
May 13, 2015

Math
The questions doesn't provide sufficient information. I recommend you look over your question again.
May 13, 2015

Math
In order to figure out consecutive odd numbers you should know what numbers should be included. Odd numbers basically means the number that isn't multiples of 2 such as 1,3,5, and etc. Therefore 203,205,207 are the three numbers.
May 13, 2015

Physics
How much work is needed to move a -8.00 uC charge from the ground to a point whose potential is +75.0V ? I know -8.00 uc = -0.8 x 10^-6 then I used W = Fd but I can't seems to get right answer any hint is appreciated.
May 13, 2015

Physics
If a small planet were discovered whose orbital period was twice that of Earth, how many times farther from the Sun would this planet be? The answer for this one is 1.6 earth radii, but I can't seems to get solution to find the answer. I would appreciate for any hint or help.
May 12, 2015

Chemistry
It's half life - try looking in your book.
May 11, 2015

maths
simplify the square root of 20 minus the square root of 5 plus the square root of 45
May 10, 2015

Physics
Calculate the tension in the string if a single pulley of velocity ratio 5 is used to raise a body of mass 200g through a distance of 4cm.
May 9, 2015

LA
Anybody find out where we can get some additional resources on this topic?
May 7, 2015

Math
tan theta = 842/72.6
May 6, 2015

education
The children’s performance in relation your main objective listed on the activity plan what is this question asking. example please
May 3, 2015

Calculus max/min
d=0.767. There are two parallel sidewalks that are separated by the park that is 600 feet wide. You are standing on the south sidewalk facing east. On the north sidewalk, 2000 feet ahead of you, is a bus stop. You can walk on the sidewalk at 5.5+d feet per sec. You can walk ...
May 3, 2015

Education
What view do you have of the children's skills and competencies? In what ways do you need to transform your view of children to see them in a more positive light? what is this question asking for? example please.
May 3, 2015

math
thank you guys. I really appreciate the help.
May 2, 2015

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