Thursday
May 26, 2016

Posts by sam

Total # Posts: 4,841

World History
Which of the following tools would NOT help a geographer to understand the ways that a country’s boundaries changed over time? A.map B.timeline C.graph D.aerial photography
January 14, 2016

Physics II
Assuming equal point charges, calculate the magnitude of the charge in C if the electrostatic force is great enough to support the weight of a 1.95 mg piece of tape held 1.05 cm above another?
January 13, 2016

Physics II
A test charge of +2 μC is placed halfway between a charge of +6 μC and another of +4 μC separated by 10 cm. What is the magnitude of the force on the test charge?
January 13, 2016

math
A 4ft piece of pipe needs to be divided into pieces that are 2/3ft long. How many pieces are made? How many remaining?
January 12, 2016

Health HELP ME!!
Thx
January 6, 2016

engineering maths. need answer asap
But don't you convert it into the base units?
January 4, 2016

geometry
we have angle ABC = angle ACB = angle DEC=angle CDE, BC = 8, and DB = 2. Find AB.
January 2, 2016

MATHS
108
January 2, 2016

Physics
During volcanic eruptions, chunks of solid rock can be blasted out of the volcano; these projectiles are called volcanic bombs. The Figure shows a cross section of Mt. Fuji, in Japan. (a) At what initial speed would a bomb have to be ejected, at angle q0 = 35° to the ...
January 2, 2016

Physics
9886, where does it come from? How did you get it?
December 28, 2015

statistics
If the mean value of the weight of a particular brand of dog food is 20.6 lb and the standard deviation is 1.3, assume a normal distribution and calculate the amount of product that falls below the lower specification value of 19.7 lb
December 21, 2015

LA
HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
December 16, 2015

LA
i don't get the other comments that you posted
December 16, 2015

LA
In all together now Jordan uses appeals to reason to try to persuade her readers that her views are important. In a paragraph cite one example of each kind of appeal in her work. thank explain whether you find jordans appeals convincing supporting your ideas with logical ...
December 16, 2015

Art
Why is art fun
December 14, 2015

Physics
Fred and George who are identical twins, same body mass, are competing in aerial skiing. Fred hits the take off with a speed of 15.8, whereas George has a speed of 8.3. How much higher will Fred go?
December 9, 2015

Problem Solving: Make a Table
Water for irrigation is measured in acre-feet. One acre-foot is the volume of water that would cover one acre of land to a depth of one foot. How many acre-feet of water would it take to cover 600 acres to a depth of one inch?
December 9, 2015

Language Arts 6A
Which of theses is a category used in the passage to contrast falcons and hawks?
December 5, 2015

english
The film image thus became almost square during the early years of the talkies until the space occupied by the sound track on the film was successfully reduced. Can someone explain to me what this mean? I don't understand.
December 5, 2015

Spelling
I am working on synonyms and diagraphs. I need a 7 letter word, that means finished. The third letter is r. Fifth letter is probably u.
December 2, 2015

Chemistry
A 38.5 mL sample of HBr is titrated with 112 mL of 1.05 mol/L KOH. The density of the HBr solution is 1.75 g/mL. Calculate the percentage by mass of the HBr in the sample. How come we don't use density*volume to find the moles of HBr?
December 2, 2015

Chemistry
30.0 mL of 0.0200 mol/L NaOH are added to 70.0 mL of 0.0100 mol/L HCI. Calculate the [H3O+] and [OH─] of the resulting solution My answer: [OH-] = 1.00x10^-10 M; [H3O+] = 1.00x10^-4 M Teacher's answer: [OH-] = 1.00x10^-11 M; [H3O+] = 1.00x10^-3 M Am I missing ...
December 1, 2015

Chemistry
50 Ltr. Of a certain liquid is confined in a piston system at the extenal pressure 100 atm this pressure suddenly released and liquid is expanded against a contant atm pressure , vol. Of liquid increases by 1 Ltr and the final pressure of the liquid is 10 atm. Find the work done.
December 1, 2015

physics
Conserve momentum
November 30, 2015

Chemistry
A piece of copper alloy with a mass of 73.0 g is heated from 23.0◦C to 44.0◦C. In the process, it absorbs 558 J of energy as heat. What is the specific heat of this copper alloy?
November 30, 2015

Math
Can you explain how you got that please?
November 30, 2015

Math
A van travels for 3 hours at an average speed of 40 mph. How much longer must the van travel at an average of 55 mph so that the average speed for the entire trip will be 50 mph?
November 30, 2015

Algebra
Thank you!
November 30, 2015

Algebra
You are choosing between two different internet providers. Company A charges $75 for installation and $42 per month. Company B charges $30 per month for installation and $45 per month. After how many months will the total costs for Internet service through the two companies be...
November 30, 2015

Math
Yes thank you!!!
November 30, 2015

Math
You are offered two different sales jobs. Job A offers an annual salary of $36,000 plus a year end bonus of 1.5% of your total sales. Job B offers an annual salary of $32,000 plus a year end bonus of 2% of your total sales. How much would you have to sell to earn the same ...
November 30, 2015

PreCalculas
Ok thank you i dont know what i was doing wrong
November 30, 2015

PreCalculas
write sqrt36*3sqrt64 using exponential notation i keep getting 24 so am i doing it wrong or is that right im confused
November 30, 2015

Pre-Calculus
f(x) = cos(x) on the interval [−2π, 2π] (a) Find the x-intercepts of the graph of y = f(x). (Enter your answers as a comma-separated list.) (b) Find the y-intercepts of the graph of y = f(x). (Enter your answers as a comma-separated list.) (c) Find the ...
November 29, 2015

Chemistry
How to find the mass of a solid formed when: 45.00ml solution of 0.003 800 mol/L lead (II) nitrate is mine dish a 30.00 mL solution of 0.08800 mol/L strontium iodide
November 29, 2015

Chemistry
what mass of barium carbonate will dissolve in a 2.50L solutions of 0.0500 molar sodium carbonate
November 29, 2015

Social Studies Check My Work
1. People's occupations, their behavior, and their beliefs are a part of their (1 point) government. climate. technology. culture.•• 2. When geographers study human-environment interaction, they learn (1 point) how schools are run. how people and their ...
November 25, 2015

Math
True or false: If a is any positive real number, the graph of y=a^x will go through the point (0,1). True or false: x^3+2x^2 is an exponential equation because it contains exponents. I got true for both of them is that right?
November 25, 2015

Social Studies Urgent
Corrections- Are they right? 3. Which of the following is NOT one of the four major advances in early cultures? (1 point) the invention of tools•• the beginnings of agriculture the discovery that the world is round the development of civilization 4. Which of the ...
November 25, 2015

Social Studies Urgent
1. People's occupations, their behavior, and their beliefs are a part of their (1 point) government. climate. technology. culture.•• 2. When geographers study human-environment interaction, they learn (1 point) how schools are run. how people and their ...
November 25, 2015

Social Studies Reed or Ms. Sue please Proofread
1. People's occupations, their behavior, and their beliefs are a part of their (1 point) government. climate. technology. culture.•• 2. When geographers study human-environment interaction, they learn (1 point) how schools are run. how people and their ...
November 25, 2015

Algebra 2
Find the vertex of each of the following parabolas by averaging the x intercepts. Then write each equation in graphing form. Y=x^2-14x+40
November 24, 2015

Algebra 2
Find the vertex of each of the following parabolas by averaging the x intercept. Then write each equation in graphing form. Y=(x-3)(x-11)
November 24, 2015

Social Studies
Yes.
November 24, 2015

Social Studies, Ms. Sue, Reed, Check My Work
@Ms. Sue, Please review my answers.
November 24, 2015

Social Studies, Ms. Sue, Reed, Check My Work
1. Geographers use the five themes of geography to (2 points) study world history. organize information. study world music. measure locations.• 2. People invented flat maps because globes cannot show (2 points) names of continents. shapes of continents. enough detail.&#...
November 24, 2015

English
Choose the sentence that is written in active voice. A. A serious accident was prevented on the highway by Roger's quick thinking. B. Roger's quick thinking prevented a serious accident on the highway. C. A serious accident was prevented on the highway. D. A serious ...
November 22, 2015

physics
filament lamp: cost-80p efficiency-0.2 expected life- 1000 hours compact fluorescent lamp (CFL): cost- £3.00 efficiency-0.8 expected life- 8000 hours A filament lamp with a power rating of 100 w gives 2000 units of light. what power rating would a CFL need to provide ...
November 22, 2015

chemistry
I have two that I can not figure out: #1: calculate the MOLALITY of 10.00 g/L of the salt, if its molar mass is 100.0 g/mol and solution density D=1.100 g/mL work: 10.00 g NaCl x (1mL/1.100g) x (1kg/1000 mL)= 0.00909 kg 100.0 g x (1 mol NaCl/58.4 g Nacl)= 1.7 mol 1.7/0.0090= ...
November 21, 2015

Check My Work Social Studies, Ms. Sue, Reed, Please
Is 1 to study world history, or is it to organize information, @Ms. Sue
November 20, 2015

Check My Work Social Studies, Ms. Sue, Reed, Please
Correction- 2. People invented flat maps because globes cannot show (2 points) names of continents. shapes of continents. enough detail.•• 5. Ocean currents follow regular patterns related to (2 points) latitude.•• volcanoes. hurricanes. longitude. 8. Which...
November 20, 2015

Check My Work Social Studies, Ms. Sue, Reed, Please
1. Geographers use the five themes of geography to (2 points) study world history. organize information. study world music. measure locations.• 2. People invented flat maps because globes cannot show (2 points) names of continents. shapes of continents.• enough ...
November 20, 2015

columbia high
160 divided by 8 is 20. There is your answer.
November 20, 2015

Math
Bird flies 80m east, then 60m south, then straight up In to sky for 30m. A)at this point how far is bird from his nest?
November 19, 2015

math
Waiting for solution
November 18, 2015

math
Hey pls pls solve it for me.
November 18, 2015

math
A fruit seller buys 100 bananas for Rs 40. Twenty bananas are spoiled and thrown away. At what rate should he sell the remaining so as to gain 10% ? Pls give me the solution of it.
November 18, 2015

math
Thnx
November 18, 2015

Geometry
for the second question it is (0,0)
November 18, 2015

math
Sara estimated 23 x 43 using 20 x 40. Sam estimated 23 x 43 using 25 x 40. Will Sara's or Sam's method give an estimate closer to the exact answer?Explain.
November 17, 2015

math
A golf practice range has 245 balls. The owner bought a carton of golf balls.How many golf balls does the owner have after buying the carton? Golf Balls 12 balls to a box 15 boxes to a carate 5 crates to a carton pls help by explaining me Thank you
November 17, 2015

Social Studies (Ms. Sue) Please Proofread
Thank you, they were correct!
November 17, 2015

Social Studies (Ms. Sue) Please Proofread
1. Population density is the number of people that live in a region divided by the number of (1 point) roads. square miles or kilometers in the region.•• waterways. people who used to live there. 2. How do demographers figure out population growth? (1 point) by ...
November 17, 2015

Chemistry
What is the concentration of lead ions in a solution if they are completely precipitated from 36.3 mL of solution by 29.6 mL of 0.35M potassium iodide.
November 16, 2015

math
Find the orthocentre of the vertices QRS. Q(2,6), R (-3,1) and S (6,2).
November 14, 2015

Social Studies
In what ways were diverse people from the Arabian Peninsula through the Middle East, North Africa, and into Spain united? What held them together and unified them, and how was this done? The time zone was between 500 to 700 CE.
November 12, 2015

Math
The blood vascular system consists of blood vessels (arteries, arterioles, capillaries, and veins) that convey blood from the heart to the organs and back to the heart. This system should work so as to minimize the energy expended by the heart in pumping the blood. In ...
November 12, 2015

science
Perfluorotributylamine (PFTBA) is found in extremely low concentrations (0.18 parts per trillion) but it has a great impact on climate. If Pftba concentrations increase, predict what will happen to the climate. Please help?
November 12, 2015

science
pftba is found in extremely low concentrations (0.18 parts per trillion) but it has a great impact on climate. if pftba concentrations increase, predict what will happen to the climate
November 11, 2015

physics
An object of mass 2kg is pulled to the right w/a force of 20N. The force makes an angle of 20o w/ the displacement axis. If the interface is rough w/a coefficient of kinetic friction 0.3, what's the net force along the diaplacement axis?
November 11, 2015

Organic Chemistry
23.78
November 11, 2015

Genetics/Bio
...don't bother replying if your response is 'idk.' The answer to your first problem is 'splicing.' My book mentions snoRNA's role in rRNA modification, assembly and cleavage. tRNA molecules have more than 4 standard nucleotides, the amino acid is ...
November 8, 2015

Physics
It is C.
November 6, 2015

Physics
Which of the following summarizes Rutherford's model of the atom? a. Electrons are embedded in a positive region of spherical dimension. b. Electrons revolve around the nucleus without emitting radiation. c. Electrons revolve around the nucleus like planets move around the...
November 6, 2015

Science
btw nobody is gonna answer your question bc there are no science tutors on this website
November 6, 2015

Language
Depends on why you're asking?
November 6, 2015

Language
It's just as exasperation when you discover the definition of "evocation" is "the act or fact of evoking" If you rewrote this sentence beginning with "nor are you" the next words are: 1) just as exasperated 2) exasperated any lesser 3) any ...
November 6, 2015

Language
I think it's number one..right?
November 5, 2015

Language
When you're told that there are no jobs. And it is time for some fast thinking. What would be the correct thing to put in? 1) jobs, it 2) jobs, and it
November 5, 2015

English
what is the PA in question 13?
November 5, 2015

Language
Thanks
November 5, 2015

Language
Consider an example in which both cars are insured by the same plan. Is there supposed to be a comma after "example"?
November 5, 2015

history
I did but still couldn't find the answer to the question. could u plz help me out?
November 5, 2015

history
International efforts are being made to safeguard against the misuse of weather modification. An example of the potential to "misuse" the weather is 1)eliminating droughts and deserts in the world 2)preventing floods in flood-prone areas 3)creating droughts or floods...
November 5, 2015

trigo
please po help me. A chimney projects 6 feet above the roof. At a point 10 feet 8 inches down the roof from the base of the chimney,the chimney subtends an angle of 17°40' . find the angle at which the roof is inclined to the horizontal.
November 4, 2015

math
I used a calculator And it said 8
November 3, 2015

math
josh ran for 56 minutes and walked for 16 minutes. What is the ration of the number of minutes ran to the number of minutes walked?
November 1, 2015

Geometry
Find the distance between the lines with the equations y = 3/2x+4 and −3x+2y = −1. Round your answer to the nearest tenth.
October 29, 2015

geometry
(2,-7)
October 29, 2015

Social Studies Please Check My Answers
made a 100 thanks
October 29, 2015

Social Studies Please Check My Answers
Yay! Got a 100!
October 29, 2015

Social Studies Please Check My Answers
Thanks so much! It must be D for 2
October 29, 2015

Social Studies Please Check My Answers
2-A 3-C 5-C 6-B Hope these are right. Can you explain to me why they are right or wrong. I need to get a better understanding on this subject.
October 29, 2015

Social Studies Please Check My Answers
Which pair of basic questions guides geographers in their work? (1 point) Where are things located? and Why are they there?* What is the climate? and Why has it changed? When did Earth form? and What is it made of? Who lived where? and When did they move? 2. To learn more ...
October 29, 2015

Social Studies Proofread Please
Haha, thanks for you answer.
October 29, 2015

Social Studies Proofread Please
Why was northern Italy a natural birthplace for the Renaissance? In your answer, explain what (5 points) the Renaissance was. It was a natural birthplace for the Renaissance because it was sort of like a melting pot for trade. Renaissance means rebirth or reawakening. The ...
October 29, 2015

math
a growing number of colleges are teaming up with banks to issue student id cards that double as debit cards. There were 51 partnerships in 2001. This number grew 10 126 in 2008. What is the percent of increase?
October 29, 2015

Social Studies! Reed?
Yay, Ms. Sue, Mr. Reed, y'all r geniuses. I got a 100%! I love you guys!
October 29, 2015

Social Studies! Reed?
Thanks! I appreciate having you tutors on this website! Do you even get payed?
October 29, 2015

Social Studies! Reed?
I will let you know if I get them right. Thanks, you are awesome. Can you check these answers real quick? Why was northern Italy a natural birthplace for the Renaissance? In your answer, explain what (5 points) the Renaissance was. It was a natural birthplace for the ...
October 29, 2015

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