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July 31, 2014

Homework Help: Health: First Aid

Recent Homework Questions About First Aid

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English (essay help)
I have to write a essay about the confederation of Canada in 1867 and why it was a good choice. I have all of my body paragraphs done but I'm having trouble thinking of a proper introduction. My first sentence for my intro is: confederation was the best choice for the ...
Sunday, April 6, 2014 at 1:40pm

math
An alloy of copper is 10% copper and weighs 25 pounds. A second alloy is 18% copper. How much (to the nearest tenth lb.) of the second alloy must be added to the first alloy to get a 13% mixture.
Sunday, April 6, 2014 at 1:31am

Math
During a flu epidemic, the number of children in the Woodbridge Community School System who contracted influenza after t days was given by the following. Q(t) = 7000 1+249 e−0.6 t (a) How many children were stricken by the flu after the first day? (b) How many children ...
Saturday, April 5, 2014 at 10:04pm

Chem
1) Which solution will have the lowest OH- A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 2) Which solution will be the strongest base? A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 3) Which aqueous solutions are acidic? A) Na2CO3 and NaHCO3 B) NaCl and NH4Cl C) NaHSO4 and ...
Saturday, April 5, 2014 at 9:33pm

math
a rope was 9.45 meters. the length of the first piece of rope was 1/5 of the original length. the second piece of rope was 0.12 meter longer than the third piece.how long was the second piece of rope
Saturday, April 5, 2014 at 3:35pm

Biographical Essay Evaluation (Writeacher)
Write a 3-paragraph Biographical Essay. Discuss your experiences with summmer: the things you enjoyed and the things you missed about school. I am beginning to simplfy my writting, as Bob suggested. However, I am going to sumbit the only the first paragraph first, so that I ...
Saturday, April 5, 2014 at 12:54pm

english writing
what is the best way to start a memoir about my first job experience? thank you
Saturday, April 5, 2014 at 9:53am

Science
1.) Use Newton’s first law of motion to explain how wearing a seat belt in a moving car could help prevent injury. 2.) A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before and after he or she ...
Friday, April 4, 2014 at 8:02pm

SCIENCE HELP ASAP! :)
1.) Use Newton’s first law of motion to explain how wearing a seat belt in a moving car could help prevent injury. 2.) A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before and after he or she ...
Friday, April 4, 2014 at 7:56pm

physics
Two manned satellites approaching one another at a relative speed of 0.500 m/s intend to dock. The first has a mass of 3.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. Assume that the positive direction is directed from the second satellite towards the ...
Friday, April 4, 2014 at 6:52pm

Science/Biology
Please check my answers: 1. Which of the following correctly states the relationship between monkeys and humans? A. Humans and monkeys evolved from apes. B. Humans evolved from monkeys. C. Humans and monkeys evolved from the same ancestor, which is now extinct. D. Humans ...
Friday, April 4, 2014 at 4:40pm

English
Determine the Narrator's perspective The previous night, make your plans for the next day and write them down...If you attend an exclusive Samurai's party and feel timid, you cannot do your part in making it a successful party. You had first better prepare by ...
Friday, April 4, 2014 at 1:59pm

English
Determine the Narrator's perspective The previous night, make your plans for the next day and write them down...If you attend an exclusive Samurai's party and feel timid, you cannot do your part in making it a successful party. You had first better prepare by ...
Friday, April 4, 2014 at 1:59pm

Social Studies
Read the speech below. It is a fictitious political speech by Peter, a candidate for the upcoming national election. Then answer the following questions: List all of the arguments in the speech List all of the non-arguments in the speech List all of the factual contents in the...
Friday, April 4, 2014 at 10:18am

Maths
If the 7th term of an AP is twice the third term and the sum of the first four terms is 42
Friday, April 4, 2014 at 2:26am

Biographical Essay Evaluation (Writeacher)
Write a 3-paragraph Biographicl Essay. Discuss your experiences with summer: the things you enjoyed and the things you missed about school. What I have written: "A strong sense of freedom is one of my favorite things about summer. Setting in only once the school year has ...
Friday, April 4, 2014 at 12:02am

science
How does Newton's first law of motion explain the movement of your body when in a car in which you are riding stops suddenly?
Thursday, April 3, 2014 at 11:43pm

science
How does Newton's first law of motion explain the movement of your body when in a car in which you are riding stops suddenly?
Thursday, April 3, 2014 at 10:34pm

social studies 9
explain why the mohawks and the other first nations would choose to become allies with europeans, even though they knew that all the europeans were a threat to their territory and way of life
Thursday, April 3, 2014 at 7:57pm

Works Cited alphabetize
I know that Works Cited pages go in alphabetical order according to the author's last name. How do you decide which work goes first when you have two works by two authors that have the same last name?
Thursday, April 3, 2014 at 6:16pm

Biographical Essay Evaluation (Writeacher)
Write a 3-paragraph Biographicl Essay. Discuss your experiences with summer: the things you enjoyed and the things you missed about school. What I have written: "A strong sense of freedom is one of my favorite things about summer. Setting in only once the school year has ...
Thursday, April 3, 2014 at 4:18pm

geometry maths
a circle of radius 1 is inscribed in a square. A smaller circle is tangent to two sides of the square and the first circle. Determine the radius of smaller circle and larger circle
Thursday, April 3, 2014 at 1:24pm

Science - Check my answers
1. Which of the following statements best defines tides? when waves get bigger because of an approaching storm the rise and fall of ocean water that occurs about every 12.5 hours **** the rise of ocean water that occurs 12 times a day a giant wave that can be extremely ...
Thursday, April 3, 2014 at 1:21pm

math-urgent
1. two cards are drawn from a standard of 52 cards. Find the probability that the second card is a spade given that the first card is a club. 2. Suppose you draw 3 cards from a standard deck of 52 cards . Find the probability that the third card is a club given that the first ...
Thursday, April 3, 2014 at 11:49am

geometry
a circle of radius 1 is inscribed in a square. A smaller circle is tangent to two sides of the square and the first circle. Determine the circumradius and inradius of the smaller circle
Thursday, April 3, 2014 at 7:35am

statistics
à manufacturer of computers designed to aid social scientists in analyzing research data clams that his computers are opérational for at least 80 percent of the time. during the course of the year one computer was operational for 270 days. test, 1 percent ...
Thursday, April 3, 2014 at 6:47am

Probability
We have k coins. The probability of Heads is the same for each coin and is the realized value q of a random variable Q that is uniformly distributed on [0,1]. We assume that conditioned on Q=q, all coin tosses are independent. Let Ti be the number of tosses of the ith coin ...
Thursday, April 3, 2014 at 5:13am

english
i am having troubles on what to right for the conflict and resolution can someone tell me what they are ? Thanks My Stepmother by Thanh Nguyen When my stepmother first came, her eyes were sharp and bright as little knives. Her youth and my childhood ran into each other - she ...
Wednesday, April 2, 2014 at 10:50pm

chemistry
"Write equations for the half-reactions that occur at the anode and cathode for the electrolysis of the following aqueous solution: CuBr2(aq)" Possible oxidation reactions: 1. 2Br- -> Br2 + 2e- = -1.09 2. 2H2O -> O2 + 4H+ + 4e- = -1.23 Possible reduction ...
Wednesday, April 2, 2014 at 8:08pm

PRE CALC
The 20th term of an arithmetic sequence is 27 and the first term is -11. What is the common difference??
Wednesday, April 2, 2014 at 7:01pm

english
Poem title, author Setting Characters Conflict(s) Resolution Rhyme or rhythm, pattern? on turning 10 You tell me it is too early to be looking back, but that is because you have forgotten the perfect simplicity of being one and the beautiful complexity introduced by two. But I...
Wednesday, April 2, 2014 at 4:55pm

Social Studies - Please Check my Answer
Please check my answer, I am not sure for this one. In 1784 the British forced American merchants to pay duties on a. trade goods imported from the British West Indies. - (This is my answer.) b. trade goods imported through Canadian ports. c. British goods sold in America. d. ...
Wednesday, April 2, 2014 at 4:00pm

Math
A and B had an equal numbers of cupcakes at first. After B bought twice as many cupcakes as he had at first and A gave away 26 cupcakes, B had 6 times as many cupcakes as A. How many cupcakes did A have at first?
Wednesday, April 2, 2014 at 9:37am

Probability
Alice has two coins. The probability of Heads for the first coin is 1/3, and the probability of Heads for the second is 2/3. Other than this difference, the coins are indistinguishable. Alice chooses one of the coins at random and sends it to Bob. The random selection used by ...
Wednesday, April 2, 2014 at 6:10am

Probability
A defective coin minting machine produces coins whose probability of Heads is a random variable Q with PDF fQ(q)={3q2,0,if q∈[0,1],otherwise. A coin produced by this machine is tossed repeatedly, with successive tosses assumed to be independent. Let A be the event that ...
Wednesday, April 2, 2014 at 6:10am

central texas college
Can somebody help please!!!This is the first time that that I take a literature class, on English II in English and I can really use some help. I am taking English 1302, which is pretty much literature and the teacher told us to define some literacy terms, for example: ...
Tuesday, April 1, 2014 at 10:41pm

Science
how does interdependence of organisms within an ecosystem aid survival in a temperate forest
Tuesday, April 1, 2014 at 9:11pm

trigonometry
Sue invested $1000 at 6% per year compounded yearly.Find the values of joe's investment at the end of each of the first five years
Tuesday, April 1, 2014 at 8:48pm

Math- urgent
The second of two numbers is five more than the twice first. The sum of the numbers is 44. Find the numbers. Show all work.
Tuesday, April 1, 2014 at 8:22pm

Physics
A stone is dropped at t = 0. A second stone, with 4 times the mass of the first, is dropped from the same point at t = 110 ms. (a) How far below the release point is the center of mass of the two stones at t = 410 ms? (Neither stone has yet reached the ground.) (b) How fast is...
Tuesday, April 1, 2014 at 4:44pm

statistic
Roll two 6-sided dice and examine their sum. a) How long will it take to roll "snake-eyes" (a pair of ones)? b) What is the probability of rolling a sum of 7 on the first roll? c) What is the probability of rolling a sum of 7 on the fourth roll? d) What is the ...
Tuesday, April 1, 2014 at 2:55pm

Math
5. There was a drawing for a prize at the Columbus Day celebration downtown. The prize was a scale model of the Santa Maria carved from a single piece of wood by a local artist. It was a beautiful ship and Jose really wanted it. Each $2.25 ticket bought one chance in the ...
Tuesday, April 1, 2014 at 11:34am

arithmetic
Select the first five terms in the arithmetic sequence an = 4n, starting with n = 1.
Tuesday, April 1, 2014 at 1:04am

Math
5. There was a drawing for a prize at the Columbus Day celebration downtown. The prize was a scale model of the Santa Maria carved from a single piece of wood by a local artist. It was a beautiful ship and Jose really wanted it. Each $2.25 ticket bought one chance in the ...
Monday, March 31, 2014 at 5:35pm

Math
Each ticket bought is $2.25. Each ticket bought Gives one chance in the drawing. Jose Purchased 10 tickets. If there were 510 tickets Purchased in all, what is the probability that One of Jose's ticket's will be drawn first? 10/510 or1: 52 chance
Monday, March 31, 2014 at 4:19pm

Math
Each ticket bought is $2.25. Each ticket bought Gives one chance in the drawing. Jose Purchased 10 tickets. If there were 510 tickets Purchased in all, what is the probability that One of Jose's ticket's will be drawn first? 10/510 or1: 52 chance
Monday, March 31, 2014 at 4:19pm

physics
Light shines through a single slit whose width is 5.7 × 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m away. The distance between the middle of the central bright fringe and the first dark fringe is 3.9 mm. What is the wavelength of the light?
Monday, March 31, 2014 at 2:44pm

science
1.   Use the diagram to answer question 1. description: particles have enough energy to break free from each other and can move around freely; particles spread out in different directions  sketch: What kind of substance is described?  (1 point) solid ...
Monday, March 31, 2014 at 2:24pm

Math
Find the probability of drawing the face card that is a spade on the first-draw replacing it and drawing a king card on the second draw
Monday, March 31, 2014 at 11:56am

physic
Physicists claim that charge never flows through an ideal capacitor. Yet when an uncharged capacitor is first placed in series with a resistor and a battery, then current flows through the battery and the resistor. Explain how this is possible.
Sunday, March 30, 2014 at 8:47pm

more proofreading.
this is another body paragraph to my research paper. can I get this one proofread as well thanks! Both Japan and the United States protect freedoms of speech and press by similar provisions in each nation’s constitution. For example, the First Amendment of the U.S. ...
Sunday, March 30, 2014 at 6:39pm

math
A salmon has to swim 25 miles upstream. It seems 7 miles each day and drifts 5 miles at night. How many days does it take for the salmon to first reach the 25 mile mark?)
Sunday, March 30, 2014 at 5:15pm

physics
a race car traveling northward on a straight, level track at a constant speed travels 0.750 km in 20.0 s. the return trip over the same track is made in 25.0 s. a) what is the average velocity if the car in m/s for the first leg of the run? b) what is the average velocity for ...
Sunday, March 30, 2014 at 3:13pm

Math
your class is conducting an experiment to study geometric sequences. The class forms a line. the first person takes a whole pizza,divides it in half, keeps half, and hands it to the next person. The next people in line do the same with there peices. Which portion does the ...
Sunday, March 30, 2014 at 2:42pm

physics
The drawing shows three identical springs hanging from the ceiling. Nothing is attached to the first spring, whereas a W = 4.20-N block hangs from the second spring. A block of unknown weight hangs from the third spring. From the drawing, determine the spring constant (in N/m...
Saturday, March 29, 2014 at 3:41pm

Physics
The ship in the figure below travels along a straight line parallel to the shore and a distance d = 580 m from it. The ship's radio receives simultaneous signals of the same frequency from antennas A and B, separated by a distance L = 700 m apart. The signals interfere ...
Saturday, March 29, 2014 at 1:28am

Finance
10. A new factory at Arcata requires an initial outlay of $3.5 million to be paid immediately. The factory will last for eight additional years, after which it can be sold for a salvage value of $2,000,000. Sales will be $800,000 during the first year of operation and will ...
Friday, March 28, 2014 at 10:38pm

Finance
9. H Corporation is considering a training program that cost $600,000. Anticipated benefits are $60,000 in the first year, $75,000 in the second year, $85,000 in the third year, and $95,000 in the fourth year. Benefits will decline 8 percent a year after the fourth year, and ...
Friday, March 28, 2014 at 10:37pm

probability
A fair coin is flipped independently until the first Heads is observed. Let K be the number of Tails observed before the first Heads (note that K is a random variable). For k=0,1,2,…,K, let Xk be a continuous random variable that is uniform over the interval [0,3]. The Xk...
Friday, March 28, 2014 at 12:36pm

Criminal law
1. The primary purpose of psychological profiling is to provide: A.the identity of an offender involved in a violent crime such as murder or sex crime. B. absolute information about an offender’s emotional and personality character traits and to immediately direct ...
Friday, March 28, 2014 at 9:55am

Mathematics
Give the first three terms of the sequence of 1.Tn+1=Tn+n
Thursday, March 27, 2014 at 11:20pm

Math
I was wondering if you can help me with math real quickly. I just cant figure this out. For the first question I have to find the surface area for the given cylinder. I have to use 3.14 and round to the nearest whole number. The radius is 6ft and the height is 20 ft. A. 180 ...
Thursday, March 27, 2014 at 10:37pm

math
Mrs. Jones and Mr. Graham had the same amount of money at first. After Mrs. Jones bought a computer that cost $2,055, she had 1/4 as much money as Mr. Graham. How much money did Mr. Graham have?
Thursday, March 27, 2014 at 9:54pm

Persuasive Writing help
I'm writing a persuasive request but English is not my native language. I've done many drafting and revising, but still not sure. so I would be grateful if you could show me what I did wrong and the correct way to revise it. Thanks "Dear xxx, I would like to ...
Thursday, March 27, 2014 at 9:29pm

Calculus
A weight oscillates in a vertical motion according to the position function y(t)=-5 cos(t). Assuming t≥0, when will the acceleration if the weight be zero for the first time?
Thursday, March 27, 2014 at 2:51pm

science
an you please solve the questions for me 1. 3 moles of pesticide of molecular mass 200 g/mole is applied to a closed system consisting of 20 m3 of water, 10 m3 of air, 1 m3 of sediment, and 0.001 m3 of fish. Determine the concentration and amount in both grams and mole units ...
Thursday, March 27, 2014 at 2:24pm

physics
A 6.26-g bullet is moving horizontally with a velocity of +344 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
Thursday, March 27, 2014 at 1:35pm

physics
A weight oscillates in a vertical motion according to the position function y(t)=-5cos t. Assuming t>=0 (greater than or equal to), when will the acceleration of the weight be zero for the first time?
Thursday, March 27, 2014 at 12:13pm

finance
Polycorp has a current dividend of $5.00 due tomorrow and is expected to pay a dividend $5.50 at the end of the first year. Its dividend is expected to grow at 8% pa for the following year. Dividends are then expected to grow at 4% pa for another two years. Then they are ...
Thursday, March 27, 2014 at 10:32am

Chemistry
How would you exactly start the first problem? My thermodynamic skills is a bit rusty. I am assuming I have to use ΔH°f under the given reaction..? But then..we barely covered ΔG° in class. Am I to use this equation, ΔG° = ΔH° - T ΔS&...
Thursday, March 27, 2014 at 1:31am

English
After watching a documentary about the environment on TV, I decided to start my own project,"Project Green Kid." Today was my first day as a Green Kid...... ---------------------------------- Do we have to use "a Green Kid"? What about "a green kid&...
Thursday, March 27, 2014 at 1:05am

FINANCE
A perpetuity with the first annual cash flow paid at the beginning of year 4 is equivalent to receiving $103,000 in 15 years’ time. Assume that the perpetuity and the lump sum are of equivalent risk and that j12 = 14.32% pa is the appropriate interest rate. How much is ...
Thursday, March 27, 2014 at 12:49am

FINANCE
Polycorp has a current dividend of $5.00 due tomorrow and is expected to pay a dividend $5.50 at the end of the first year. Its dividend is expected to grow at 8% pa for the following year. Dividends are then expected to grow at 4% pa for another two years. Then they are ...
Thursday, March 27, 2014 at 12:47am

pre calculus
A taxi company charges $2.00 for the first mile (or part of a mile) and 20 cents for each succeeding tenth of a mile (or part). Express the cost C (in dollars) of a ride as a piecewise-defined function of the distance x traveled (in miles) for 0 < x < 2
Thursday, March 27, 2014 at 12:07am

physics
Some say that the hot air balloons with which the Montgolfier brothers performed their first flight had a volume of 1700 cubic metres and could lift 780 kilograms (that includes the balloon, basket and payload). Assume that the balloon took off on a day when the sea level ...
Thursday, March 27, 2014 at 12:00am

algebra
Mary has a total of $5000 invested in two accounts. One account pays 5% and the other 8%. Her interest in the first year was $331. Write and solve a system of equations to find out how much she has invested in both accounts
Wednesday, March 26, 2014 at 10:39pm

Socials
What year was Canada's first railway : the Champlain and Saint Lawrence railroad built in?
Wednesday, March 26, 2014 at 10:09pm

physics
A car moving with an initial speed v collides with a second stationary car that is 50.7 percent as massive. After the collision the first car moves in the same direction as before with a speed that is 33.2 percent of the original speed. Calculate the final speed of the second ...
Wednesday, March 26, 2014 at 7:48pm

Math
If Mike has 8 dimes and 6 pennies in his pocket. If he randomly selected one coin and then a second coin without replacing the first, what is the probability that both coins were dimes?
Wednesday, March 26, 2014 at 7:41pm

LA PLS HELP!!!!! (check my work)
1. What causes Brer Lion to be tied to a tree? (1 point) >>>his fear<<< his strength his obedience to Brer Rabbit 2. Which of the following is a reasonable prediction about what will happen after this story is over? (1 point) Brer Lion and Brer Rabbit will ...
Wednesday, March 26, 2014 at 7:04pm

*****Help Statistic
Imagine taking a 10-question true or false exam. You randomly guess at each question. Don't do any calculations, just tell me your first impressions a). Is this a binomial setting? b) How many question do you think you would get correct? c). How surprised would you be if ...
Wednesday, March 26, 2014 at 4:11pm

Maths
4x+1,2x+4 and x+3 are first three terms of arithmetic sequence determine the value of x
Wednesday, March 26, 2014 at 10:47am

Math
Homing pigeons avoid flying over large bodies of water, preferring to fly around them instead. Assume that a pigeon released from a boat 1 mile from the shore of a lake flies first to point P on the shore and then along the straight edge of the lake to reach its home at L. If ...
Wednesday, March 26, 2014 at 12:07am

chemistry
The rate constant of a first-order reaction is 4.25 x 10^-4 s^-1 at 350 Celsius. If the activation energy is 103 kJ/mol, calculate the temperature at which its rate constant is 8.75 x 10^-4 s^-1.
Tuesday, March 25, 2014 at 11:21pm

Science asap thankies :)
What would a permanently magnetic substance be called? I cant remember what my teacher called it, it was a short first word then magnet.. sorry and thanks!
Tuesday, March 25, 2014 at 10:39pm

Chemistry
The degradation of CF3CH2F (an HFC) by OH radicals in the troposphere is first order in each reactant and has a rate constant of k=1.6×108M−1s−1 at 4∘C. If the tropospheric concentrations of OH and CF3CH2F are 8.1×105 and 6.3×108 molecules ...
Tuesday, March 25, 2014 at 10:03pm

How-To Essay Evaluation (Writeacher)
What do you think? "In order to shoot a bow accurately, the first step to take is to determine your dominant eye (the eye from which a person prefers to receive visual input). While this action might have been what you least expected, by determining your dominant eye, you...
Tuesday, March 25, 2014 at 4:20pm

Physics
A box of mass 50.0 kg is connected to a second box with a mass of 54.0 kg. Both are sitting on a horizontal surface and the coefficient of kinetic friction between the surface and each box is 0.51. If the second box is pulled away from the first box with a force of 605.8 N, ...
Monday, March 24, 2014 at 8:51pm

Physics
A railroad car with a mass of 12000 kg collides and couples with a second car of mass 18000 kg that is initially at rest. The first car is moving with a speed of 9 m/s before collision. If external forces can be ignored, what is the final speed of the two railroad cars after ...
Monday, March 24, 2014 at 8:06pm

math
Mr. Gonzalez's sixth-grade class is putting on a play. He reserved the first 6 rows of the auditorium for family members and friends of the 24 students in his class. If each row contains 17 seats and each student can invite the same number of guests, how many guests can ...
Monday, March 24, 2014 at 6:48pm

Social Studies :)
2. The only Native Americans who successfully stayed on their land were the (1 point) Seminole. *** Sauk. Cherokee. Fox. 3. What act did the United States government pass in order to be able to move Native Americans off their land into Indian Territory? (1 point) Native ...
Monday, March 24, 2014 at 4:36pm

math
Rosy has been jogging for 3 weeks. In the first week She jogged 3 days each for 4/6 of an hour. During week 2 she jogged for 3/4 of an hour on 2 days. In week 3 she jogged 4 days each for 3/5 of an hour . WRITE one expression that would show the total time she spent jogging in...
Monday, March 24, 2014 at 4:12pm

math
The 6th grade classes have started a contest to collect cans for recycling. The first class to reach 500 cans will win. The chart below shows the two classes in the lead. How many cans does each class have left to meet their goal? show the work . find how much they collected. ...
Monday, March 24, 2014 at 3:17pm

MATH
there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal amount)
Monday, March 24, 2014 at 3:14pm

math
The 6th grade classes have started a contest to collect cans for recycling. The first class to reach 500 cans will win. The chart below shows the two classes in the lead. How many cans does each class have left to meet their goal? show the work .
Monday, March 24, 2014 at 2:21pm

Physics
Find the total change in the internal energy of a gas that is subjected to the following two-step process. In the first step the gas is made to go through isochoric heating until it gains 5363 J and its pressure is 2.92 105 Pa. In the second step it is subjected to isobaric ...
Monday, March 24, 2014 at 12:42pm

physics
A car moving with an initial speed v collides with a second stationary car that is 46.0 percent as massive. After the collision the first car moves in the same direction as before with a speed that is 37.7 percent of the original speed. Calculate the final speed of the second...
Monday, March 24, 2014 at 9:45am

computer science
a) What is the largest positive number that can be represented in 12 bits using one’s complement? Represent the number in bits and decimal as well. Assume the first bit is the sign bit. (2 marks)
Sunday, March 23, 2014 at 11:47pm

physics
A bicyclist wants to make it from one building to the next. The first building he is standing on is 20 m tall. The building he wants to reach is 12 m tall. He is moving at 4 m/s and the gap between both buildings is 5 m. Will he make it? Please just show me how to break down ...
Sunday, March 23, 2014 at 10:35pm

physics
train car are coupled together by being bumped into one another. suppose two loaded train cars are moving toward one another, the first having a mass of 150000 kg and velocity of 0.30 m/sand the second havin a mass of 110000 kg and a velocity of (-0.12 m/s). what is their ...
Sunday, March 23, 2014 at 9:05pm

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