Friday
May 24, 2013

# Homework Help: Health: First Aid

Recent Homework Questions About First Aid

Physics
The caber toss is a traditional Scottish sport that involves hurling a caber, which is essentially a large piece of a tree: a caber is a 6 m long, 80 kg tree trunk. Large strong people hurl these and the goal is to get the caber to land as far away as possible and rotate in ...
Saturday, March 30, 2013 at 9:56am

mathematics
In how many ways can the letters of MAHABHARAT be arranged so that i) B n T are never together ii) M,A,T n H occurs at first four places
Saturday, March 30, 2013 at 12:47am

Algebra
Matt ate a total of 100 raisins over a five day period. Each day he ate six more raisins than the previous day. How many did he eat the first day?
Saturday, March 30, 2013 at 12:27am

Math Movers
Movers A mover charges $500 for the first 100 miles plus$10 for each additional mile. If C represents the charge and M represents miles. What would the equation look like for this question?
Friday, March 29, 2013 at 8:51pm

Algebra
Three ships leave New York for France on the same day. The round trip takes the first ship 12 days, the second ship 16 days and the third ship 20 days. How many days will elapse before all three ships again leave New York on the same day? Assume continuous trip activities for ...
Friday, March 29, 2013 at 7:21pm

5. Which of the following sentences is punctuated correctly? (1 point) I'd like to go outside but I need to finish my homework first. Since Bobby's birthday is in July he isn't able to celebrate with his classmates. Even if I have to do it myself I will fix the gym...
Friday, March 29, 2013 at 7:06pm

math
a number line below -5 -4 -3 -2 -1 0 1 2 3 4 5 Which of the expressions below represent the distance between -4 and 5 on the number line? [ ]= absolute value symbol A. [-4+5] B.[4-5] C.[-4-5] d.[-5-(-4)] I believe it is D, since the absolute value of a neg. number is positive...
Friday, March 29, 2013 at 5:34pm

Math
Radio stations use three or four letters for their call letters(name). The first letter must be a W or K. How many different call letters are possible if repeated letters are allowed? And not allowed?
Friday, March 29, 2013 at 5:10pm

Math 0098
The sum of three numbers is 113 . The second number is 3 times the third. The first number is 7 less than the third . What are the numbers?
Friday, March 29, 2013 at 1:33pm

Math
Seattle Chocolates for the year ended December 31, 2002: The following are selected items from the accounting records of Seattle Chocolates for the year ended December 31, 2002: Note payable to northwest Bank $500,000 Income taxes payable 40,000 Accrued expenses and payroll ... Friday, March 29, 2013 at 12:42pm physics The caber toss is a traditional Scottish sport that involves hurling a caber, which is essentially a large piece of a tree: a caber is a 6 m long, 80 kg tree trunk. Large strong people hurl these and the goal is to get the caber to land as far away as possible and rotate in ... Friday, March 29, 2013 at 1:32am physics What are the first, second, and third frequencies audible from a 20 cm long organ pipe when (A) only one end is open and when (B) both ends are open. The speed of sound through the air inside the organ pipe is 343m/s. (Hint: if a harmonic does not exist, it would not be heard.) Thursday, March 28, 2013 at 9:57pm Public Speaking For communication to take place, there has to be: A. transmission of the message. B. medium. C. sharing of meaning. D. absence of noise. is it A 2. Which is NOT a benefit of studying public speaking? A. Creates good first impression on others B. Communicates competence C. ... Thursday, March 28, 2013 at 4:37pm Chemistry 1. Which of the following metals is oxidized by calcium ions? *potassium zinc iron lead 2. The first electrochemical cell was invented by ____. Michael Faraday *Alessandro Volta James Maxwell Benjamin Franklin 3. Why can't a lead storage battery be recharged indefinitely... Thursday, March 28, 2013 at 12:28pm PHYSICS!!!! An 80 kg man is riding in an elevator from the first floor to the 34th floor. The elevator and man are moving at a constant speed. What is the net force on the man in Newtons. Thursday, March 28, 2013 at 12:14pm algebra The perimeter of a triangle is 47 miles. The first side is 5 miles less than twice the second and the third is 2 miles more than the first. Find the lengths of each side. Thursday, March 28, 2013 at 12:11pm Algebra Multiple choice revised!! HELP I have a few questions I need help with! Please explain if my answer was not right how you got to it. I got 1.) B 2.) A 3.) C 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in ... Thursday, March 28, 2013 at 11:29am Algebra multiple choice! I have a few questions I need help with! Please explain if my answer was not right how you got to it. I got 1.) B 2.) A 3.) C 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in ... Thursday, March 28, 2013 at 10:31am Algebra help needed please!! I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. -3x+y-z=-4 6x-2y+2z=8 -12x+4y-4z=-16 2. Solve the system by ... Thursday, March 28, 2013 at 7:38am Algebra I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. -3x+y-z=-4 6x-2y+2z=8 -12x+4y-4z=-16 2. Solve the system by ... Wednesday, March 27, 2013 at 9:39pm Social Studies Ms. Sue please Sorry there are so many questions!!!! 1. The economic centers of the Northeast are the region's __________. (1 point) farms fisheries forests cities 2. Two major ports in the South are ______________________. (1 point) Atlanta and Dalton Raleigh and Austin Miami and New ... Wednesday, March 27, 2013 at 9:35pm History 1. What did the baby boom generation value? (1 point) traditional, mainstream values trust in adults and the government youth, spontaneity, individuality, and spirituality restriction of minority civil rights and less environmental regulation 2. How did the counterculture ... Wednesday, March 27, 2013 at 9:09pm Math Hi i'm having trouble with a question. it states During the Summer you take 2 part time jobs. The first job pays$5 per hour. The 2nd Job pays $8 per hour. You want to earn at least$150 a week and work 25 hours or less a week. Write a system of inequalities that model the...
Wednesday, March 27, 2013 at 8:03pm

Bus Math
i need to earn 61000 over 5 years. at 6% interest semiannually what is my first deposit?
Wednesday, March 27, 2013 at 3:45pm

physics
We are given an input current Iin=100μA and a linear resistive load represented by the resistor RL . Our resistive load is not regulated for the high current provided by our current source, so we add a resistor RS in parallel to divide the current such that IL≈40&#...
Wednesday, March 27, 2013 at 8:07am

Physics
The caber toss is a traditional Scottish sport that involves hurling a caber, which is essentially a large piece of a tree: a caber is a 6 m long, 80 kg tree trunk. Large strong people hurl these and the goal is to get the caber to land as far away as possible and rotate in ...
Wednesday, March 27, 2013 at 8:00am

Physics
An 80 kg man is riding in an elevator from the first floor to the 34th floor. The elevator and man are moving at a constant speed. What is the net force on the man in Newtons (g=9.8)
Wednesday, March 27, 2013 at 1:38am

Genetics
β-thalassemia is a human genetic disease that is inherited in an autosomal recessive manner. Individuals with β-thalassemia produce abnormal hemoglobin which results in a reduced ability to carry oxygen in their blood. The severity of symptoms depends on several ...
Wednesday, March 27, 2013 at 1:00am

you need to make 20ml of a 20% glucose solution. I need to calculate the amount of glucose and water needed. I know that the M.W is 180.16 for glucose. Would I multiply 20ml times 20 percent first? Thank you!
Tuesday, March 26, 2013 at 10:29pm

PHYSICS......
Q1.a building has three alternative routes from the ground to the first floor. i)a flight of stairs at an angle of 45 degree. ii)a near flight ladder angle 85 degree. iii)a long zig-zag slope at an angle of 15 degree. what are the disadvantages and advantages of each case ...
Tuesday, March 26, 2013 at 8:40pm

Language Arts (unfortunately, once again)
I hate to ask a similar question twice, but I am unable to describe the relationship between slain : snail :: flair : frail. I know the first three of five letters are switched, so would my relationship phrase be "switched" or "is switched to?"
Tuesday, March 26, 2013 at 7:06pm

Physics, so confused
A cart of mass M1 = 5.00 kg and initial speed = 3.00 m/s collides head on with a second cart of mass M2 = 3.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision. I am not sure how to find this answer without having a V2 for the first ...
Tuesday, March 26, 2013 at 6:31pm

Soc. Studies-Ms. Sue
What was the first territory to shed blood in a civil war over slavery? A.Texas B.Kansas C.Missouri D.South Carolina I know there was blood shed in Kansas-but there is info that South Carolina was the first territory that had blood shed??? Can you help me?
Tuesday, March 26, 2013 at 5:10pm

edu
Emergent literacy skills are enhanced by a.quantity and quality of print and audio-visual resources b. the family socio-economic status and aspirations c.engaging in literacy event with other persons especially adults d. the educational or professional level of one or both ...
Tuesday, March 26, 2013 at 2:18pm

Chemistry
If your solution’s final volume of 32.55 mL yields 3.6 grams of AgCl, determine the Molarity of the final solution. Also, how many milliliters of a 1.85 M solution of AgNO3 did you add to an excess of aqueous NaCl to provide the 3.6 grams of AgCl? Actually this question ...
Tuesday, March 26, 2013 at 12:25am

evan drove into the country for a long weekend. he planned to drive 118 miles on each of 4 days, however his car broke down and he was only able to drive 43 miles on the first day. how many miles per day must he drive to reach his destination.
Monday, March 25, 2013 at 6:54pm

first derivative
What is the first derivative of ln (x^2 + 2)?
Monday, March 25, 2013 at 6:44pm

Math
An object suspended from a spring is oscillating up and down. The distance from the high point to the low point is 30cm, and the object takes 4s to complete 5cycles. For the first few cycles, the distance feom the mean position, d(t) centimetres, with respect to the time, t ...
Monday, March 25, 2013 at 5:46pm

physics
A car drives along a road section free of curves with speed v0 first through the hollow of a valley (radius of curvature r1) and then over a mountain top (radius of curvature r2). Let the driver have mass m. • What changes in his weight does the driver observe when ...
Monday, March 25, 2013 at 5:25pm

physics....need help!
An 80 kg man is riding in an elevator from the first floor to the 34th floor. The elevator and man are moving at a constant speed. What is the net force on the man in Newtons.
Monday, March 25, 2013 at 12:26pm

1. Which sector of the Midwest economy is the biggest? (1 point) agriculture industry services transportation 2. Where was the world's first skyscraper located? (1 point) Detroit St. Louis Minneapolis Chicago 3. Many Midwestern cities began as centers of _________ and ...
Monday, March 25, 2013 at 12:22am

phi 208 ethics and moral
The First Cause argument for the existence of God assumes that
Sunday, March 24, 2013 at 10:58pm

Chemistry
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 5.48 × 1014 s–1. With what kinetic energy will electrons be...
Sunday, March 24, 2013 at 10:57pm

trig
Find the first two terms a_1 =5 and an=3a _n-1+2
Sunday, March 24, 2013 at 9:50pm

Physics- so confused!!
A bullet with a mass of 5.40 g is fired horizontally at two blocks resting on a smooth and frictionless table top as shown in the Figure. The bullet passes through the first 1.20 kg block, and embeds itself in a second 1.20 kg block. Speeds v1 = 3.90 m/s and v2 = 1.70 m/s, are...
Saturday, March 23, 2013 at 10:09pm

Stats
Is noise present in the differenced series (taking non-stationary data and making it stationary thru first difference of a time series)?
Saturday, March 23, 2013 at 8:42pm

Math(arithmetic & Geometric Series)
1)The sum of 6 terms of an arithmetic series is 45, the sum of 12 terms is -8. Find the first term and the common difference? 2)If in a geometric sequence the sum of the second and the third is 20 and the sum of the fourth and fifth is 320, find the common ratio and the first ...
Saturday, March 23, 2013 at 7:38pm

algebra 2\arithmetic series
on the moon ,afalling object falls jest 2.65feet in the first second afther
Saturday, March 23, 2013 at 2:24pm

maths
if the LCM of first 20 natural numbers is X, then what will be the LCM of first 25 natral numbers
Saturday, March 23, 2013 at 4:05am

health
Mark is a 30yo businessman who was diagnosed with Crohn’s dz over ten years ago; otherwise, he’s a healthy guy. He’s been free of flare-ups for the past couple of years, but a recent business trip to Thailand (stress, new foods) may have been the trigger for his...
Friday, March 22, 2013 at 11:58pm

Discrete Math
(2) Suppose A is the set of students currently registered at the University of Calgary, B is the set of professors at the University of Calgary, and C is the set of courses currently being offered at the University of Calgary. Under what conditions is each of the following a ...
Friday, March 22, 2013 at 7:38pm

opposition to the constitution came from substantial majorities in which of the following three states populous states? A) North Carolina, Virginia and Pennsylvania b) Virginia, Massachusetts, New York c) Massachusetts, pennsylvania, georgia d) North Carolina, Virginia, New ...
Friday, March 22, 2013 at 4:57pm

stat
200 tickets are sold to a raffle. It costs $5 to buy a ticket. There is one first prize winner and one second prize winner. First prize is$500. Second prize is $250. What is the value of playing this game? Friday, March 22, 2013 at 3:58pm Statistic 200 tickets are sold to a raffle. It costs$5 to buy a ticket. There is one first prize winner and one second prize winner. First prize is $500. Second prize is$250. What is the value of playing this game?
Friday, March 22, 2013 at 3:44pm

Math
200 tickets are sold to a raffle. It costs $5 to buy a ticket. There is one first prize winner and one second prize winner. First prize is$500. Second prize is $250. What is the value of playing this game? Friday, March 22, 2013 at 3:18pm maths- find first three terms in the expansion of ( 1 –x )^-1/4 Friday, March 22, 2013 at 2:13pm Crocket A 143m wire is cut into three pieces. The second is 3m longer than the first. The third is 4/5 as long as the first. How long is each piece? Friday, March 22, 2013 at 12:51pm science Who made the first light bulb? Thursday, March 21, 2013 at 9:30pm AlgebraB-2 Thanks everybody, I got a solution for figuring out the answer (which is 36) to my first question. But I still need help with the other ones below. Any help would be appreciated: 2. What are the solutions of the equation x2 + 4x = 96? (1 point) 2, –48 –12, 8 –2... Thursday, March 21, 2013 at 7:57pm accouting - Hanna Manufacturing – Due Hanna Manufacturing manufactures components for the farming industry and is considering replacing its existing equipment with new and more high technology machinery, despite the fact that its existing eq uipment is only a few years old and ... Thursday, March 21, 2013 at 6:37pm physics In Example 5.8, we investigated the apparent weight of a fish in an elevator. Now consider a 72.0 kg man standing on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.20 m/s in 0.80 s. It travels with this constant speed ... Thursday, March 21, 2013 at 6:14pm Math Find the sample space. a Bag contains 4 marbles: one each of red, blue, green and violet. Two marbles are drawn from the bag. assume that the first marble is not put in the bag before drawing the second marblle Thursday, March 21, 2013 at 3:51pm Algebra Find the first four terms of the sequence represented by the expression. 3n + 5 A.5, 8, 11, 14 B.8, 11, 14, 17 C.3, 6, 9, 12 D.0, 8, 11, 14 I think it is C...? Thursday, March 21, 2013 at 12:00pm Algebra Multiple Choice Hello, This is the last of questions I have for my practice assignment. Again I will put what I got. Thanks for your help. 1.) Solve the system using substitution. Write answer as an ordered pair. 4x+2y=8 -5x-2=y A.) First equation (-2,8) B.) Second equation (-2,8) I put A 2... Thursday, March 21, 2013 at 9:22am college algebra x^3+4x^2-2x-3 ; x+1 factor theorum to decide whether or not second polynomial is a factor of the first. Thursday, March 21, 2013 at 8:01am Chem 132 The rate constant for this first-order reaction is 0.650 s–1 at 400 °C. A------> Products How long (in seconds) would it take for the concentration of A to decrease from 0.660 M to 0.350 M? Thursday, March 21, 2013 at 12:28am Math Find the first five terms of the sequence using the recursive rule: a1 = 2/3, and An = 5a N-1 Wednesday, March 20, 2013 at 7:40pm English Word box abduct ambiguous balk compact confer earmark frigid implement incalculable indisputable intensive maneuver sabotage scant stealthy strapping strident thrive titanic valiant 2.At first the zebras did not notice the ____ movements of the lions inching their way closer ... Wednesday, March 20, 2013 at 6:15pm PHYSICS - PLEASE HELP A 1.00 kg pendulum bob is released from a height of 0.200 m. Its speed at the bottom of its swing is 1.95 m/s on the first pass. How much energy is lost due to friction during one complete swing of the pendulum? I get Ep=mgh 0.2*9.8*1 =1.96 then i get Ek=1/2mv^2 1/2*1*1.95^2... Wednesday, March 20, 2013 at 5:19pm trig Sandra wants to find the height of a moutain. From her first location on the ground, she finds the angle of elevation to the top of the mountain to be 35 degrees 15 minutes. After moving 1000 meters closer to the moutain on level ground, she finds the elevation to be 50 ... Wednesday, March 20, 2013 at 1:28pm statistics The program plans to acquire a total of 600 end items costing$570 million over a five-year period. The first production contract is to be awarded in FY04. The number of items to be procured (not delivered) each year and their estimated cost (in then-year dollars) is shown ...
Wednesday, March 20, 2013 at 12:02pm

math
Consider the region in Quadrant 1 totally bounded by the 4 lines: x = 3, x = 9, y = 0, and y = mx (where m is positive). Determine the value of c such that the vertical line x = c bisects the area of that totally bounded region. Needless to say, your first task should be to ...
Tuesday, March 19, 2013 at 6:51pm

Statistics
A market research company employs a large number of typists to enter data into a computer database. The time taken for new typists to learn the computer system is known to have a Normal distribution with a mean of 2.167 hours and a standard deviation 20 minutes. A candidate is...
Tuesday, March 19, 2013 at 5:58pm

math
The strongest recorded earthquake in the world took place in Chile on May 22 1960. It had a magnitude of 9.5 on the Richter scale. The strongest quake actually recorded in Canada was magnitude 8.1 on August 22 1949 and occurred off the Queen Charlotte Islands. (The strongest ...
Tuesday, March 19, 2013 at 4:33pm

Trig
What is the exact value of tan(s+t) if sin(s+t)=56/65. And cos(s)=5/13 and sin(t)=4/5. Everything is in the first quadrant
Tuesday, March 19, 2013 at 3:22pm

Algebra
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 14, 19, 24, 29, . . . A.geometric, 34, 39, 44 B.arithmetic, 32, 36, 41 C.arithmetic, 34, 39, 44 D.The sequence is neither geometric nor arithmetic. I think this is C...? What are the first ...
Tuesday, March 19, 2013 at 10:48am

Algebra
What are the first four terms of a geometric sequence if the common ratio is 10 and the first term is 4.5? A.4.5, .45, .045, .0045 B.4.5, 9.0, 13.5, 18.0 C.4.5, 14.5, 24.5, 34.5 D.none of the above I think this is D...?
Tuesday, March 19, 2013 at 10:42am

calculus
assume that during the first 3 minutes after a foreign substance is introduced into the blood,the rate R'(t) at which new antibodies are produced(in thousands of antibodies per minute) is given by R'(t)=t/(t^2+1) where t is in minutes.find the total quantity of new ...
Tuesday, March 19, 2013 at 3:06am

Chemistry
At a given Temperature, the elementary reaction A<--->B in the forward direction is first order in A with a rate constant of 3.90*10^-2s^-1. The reverse reaction is first order in B and the rate constant is 8.20*10^-2s^-1. What is the value at equillibrium for the ...
Monday, March 18, 2013 at 11:06pm

The strongest recorded earthquake in the world took place in Chile on May 22 1960. It had a magnitude of 9.5 on the Richter scale. The strongest quake actually recorded in Canada was magnitude 8.1 on August 22 1949 and occurred off the Queen Charlotte Islands. (The strongest ...
Monday, March 18, 2013 at 10:29pm

math
Hi, This is the third time I posted this because it wasn't answered by anyone. PLEASE help. I think the first part is correct but I am not sure if the V=lw10 is correct. I got 10 for the number of cubes. Here is the question There is a picture with stacked cubes that are ...
Monday, March 18, 2013 at 9:11pm

Geometry
A two-player game is played with two piles of stones, with sizes m,n. On a player's turn, that player can remove any number of stones from one pile, or the same number of stones from each pile. A player loses when they are unable to take a stone. If 1 \leq m,n \leq 30, for...
Monday, March 18, 2013 at 7:29pm

geometry
Consider the region in Quadrant 1 totally bounded by the 4 lines: x = 3, x = 9, y = 0, and y = mx (where m is positive). Determine the value of c such that the vertical line x = c bisects the area of that totally bounded region. Needless to say, your first task should be to ...
Monday, March 18, 2013 at 7:25pm

4. "Brer" is dialect for briar. brother. Mister. brawny. 5. What is the main reason to ask questions as you read a story? to describe the characters to summarize the plot to identify the author’s purpose to aid in your comprehension My answers: 4. Mister. 5. to ...
Monday, March 18, 2013 at 7:23pm

geometry
Consider the region in Quadrant 1 totally bounded by the 4 lines: x = 3, x = 9, y = 0, and y = mx (where m is positive). Determine the value of c such that the vertical line x = c bisects the area of that totally bounded region. Needless to say, your first task should be to ...
Monday, March 18, 2013 at 7:18pm

stats.
The GMAT test is required for admission to most graduate programs in business. In a recent year, the GMAT test scores were normally distributed with a mean of 550 and standard deviation of 100. A. Find the first quartile for the distribution of GMAT scores. B. Find the median ...
Monday, March 18, 2013 at 3:27pm

math 140
A football team gained 12 yards on one play, lost 40 yards on another, and gained 34 yards on the last play of the first half. They had already gained 345 already during the half. What was the total yardage gain for the first half?
Monday, March 18, 2013 at 2:33pm

College Mathematics
U.S. Presidents. The ages of the 44 presidents at their first inauguration (as of 2011) are: 57 57 49 52 50 42 54 55 64 61 61 64 56 47 51 51 56 46 57 54 50 46 55 56 60 61 54 57 68 48 54 55 55 62 52 47 58 51 65 49 54 51 43 69 a. Construct a frequency distribution with a first ...
Monday, March 18, 2013 at 2:04pm

Englsih II
Choose one of your problems (or any one from the two lists) and develop it into an organized theme in the text box provided below. There is only one assignment in this submission, but it has four steps. I. Create a broad outline, i.e., Title, Introduction, Main Headings under ...
Monday, March 18, 2013 at 2:00pm

Physics
Some rental cars have a GPS unit installed, which allows the rental car company to check where you are at all times and thus also know your speed at any time. One of these rental cars is driven by an employee in the company’s lot and, during the time interval from 0 to 10...
Monday, March 18, 2013 at 12:09pm

statistics
Suppose we take a random sample of size n from a normal population with variance, σ2 . It can be shown that (n−1)s2/σ2 has a chi-square distribution with n−1 degrees of freedom, where s is the sample variance. Below is a random sample of size 8 drawn from...
Monday, March 18, 2013 at 12:32am

Lang. Arts
Which elements of a story can help you predict early on what a story will be about? (Choose all that apply.) A.the author’s name B.the title C.the tone of the first paragraph D.illustrations and captions I definitely think it is B and D...A is questionable even though the...
Sunday, March 17, 2013 at 10:18pm

SOC 313
1. Motor and perceptual consequences of brain damage affect: (Points : 1) visual-spatial relations; vision and hearing; and bowel and bladder function memory; attention and concentration; and judgment speech and language personality change and affective response 2. Stephanie ...
Sunday, March 17, 2013 at 9:01pm

Chemistry
For the reaction: 2HCl + Na2CO3→ 2NaCl + H2O + CO2 how much CO2 is produced at STP if 18.5 L of 1.15 M Na2CO3is used? The molar mass of Na2CO3is 106.01 g/mol. I know I have to use stoichiometry and possibly PV=nRT but I don't know what to use first. Do I start with ...
Sunday, March 17, 2013 at 7:38pm

Science ASAP
2. Ferns have roots, stems, and leaves just like seed plants. Why are they classified separately? (1 point) Their leaves are compound and feathery. They produce cones to reproduce. Their roots are only shallow rhizomes. They produce spores instead of seeds. 3. The first plants...
Sunday, March 17, 2013 at 7:20pm

Physics
Question: Calculate the direction of Earth's magnetic field. 3 components of the magnetic field: Geographic South to North: 0.01670 mT Geographic West to East: 0.002147 mT Up to down (up is the sky, down is the ground): 0.03722 mT Calculating angle East of North: tanθ...
Sunday, March 17, 2013 at 6:45pm

calculus
a right triangle is formed in the first quadrant by the x- and y- axes and a line through the point (1,2). write the length of the hypotenuse as a function of x. find the vertices of the triangle such that its area is a minimum.
Sunday, March 17, 2013 at 10:18am

science
two waves are traveling through the a container ofnitrogen . the amplitude of the first wave is .3 cm and the amplitude of the second wave is .9 cm. what is true about the two waves? a. the energy of the first wave is less than the second wave. b. the energy of the first wave ...
Saturday, March 16, 2013 at 11:47pm

Maths A
Sue was sailing in the area shown on the chart on 3 March 2013. At 9:00 a.m., she sighted the antenna mast on Wellings Island on a bearing of 180°T. Sue also took a sighting to the lighthouse on Abby Island and found it was at an angle of 098°M. (i) Sue sighted the ...
Saturday, March 16, 2013 at 7:25pm

Physics
In a resonance-tube containing air, the source of sound is a small loudspeaker driven by a variable-frequency oscillator. The distance between successive antinodes is 10 cm for a frequency of 1625 Hz. When the frequency is slowly reduced, the standing wave pattern at first ...
Saturday, March 16, 2013 at 2:28pm

IT
Can someone help me with this? Design an application or site that presents and explains your Implementation Plan. The site must include all sections of the plan and related content and consist of multiple web pages. Demonstrate the following characteristics Effective File ...
Saturday, March 16, 2013 at 1:55am

Language Arts
Identify the sentence with the independent clause underlined. A. Because she wanted to win, Lanie practiced hard every day. B. Although Cale is fairly sure about the next move, the team decides to follow Manny’s suggestion and go for the touchdown. C. Although he was ...
Friday, March 15, 2013 at 12:39pm

science
With action-reaction forces, _____. A. the action force is created first B. the reaction force is created first C. the forces are created at the same time D. both forces already existed I think it is D..?
Friday, March 15, 2013 at 12:06pm

I will give the questions and my answers. Someone check it please. Read the passage below and answer the questions that follow. To the Top “Great works are performed, not by strength, but by perseverance.” -Samuel Johnson Have you ever wanted to give up on something ...
Friday, March 15, 2013 at 11:55am

Physics
A 1.0cm wide diffraction grating has 1000slits. It is illuminated by light of wavelength 550nm. What are the angles of the first two diffraction orders?
Friday, March 15, 2013 at 10:42am

Gramar
a 4 hour tour averaged 3 miles per hour. if the average rate was 2.5 miles per hour for the first 3 hours what was the average rate for the last hour
Friday, March 15, 2013 at 12:54am

Chemistry
Solid Na2SO4 is added to a solution which is 0.012 M in Pb(NO3)2 and 0.048 M in AgNO3. Assume the volume remains constant. Ksp = 2.0 10-8 for PbSO4 and Ksp = 1.2 10-5 for Ag2SO4. (a) Which compound precipitates first? (b) What is the concentration of the first ion precipitated...
Friday, March 15, 2013 at 12:02am

Chemistry
Solid Na2SO4 is added to a solution which is 0.020 M in Pb(NO3)2 and 0.045 M in AgNO3. Assume the volume remains constant. Ksp = 2.0 10-8 for PbSO4 and Ksp = 1.2 10-5 for Ag2SO4. What is the concentration of the first ion precipitated when the second ion starts to precipitate?
Thursday, March 14, 2013 at 11:57pm

English
Africa was one of the sites where agriculture began. Archaeological investigations suggest that knowledge of cultivation moved west from the ancient Judaea (southern Palestine) and arrived in the Nile Delta in Egypt about the fifth millennium before Christ. Settled agriculture...
Thursday, March 14, 2013 at 11:32pm

Language Arts
I will give the questions and my answers. Someone check it please. Read the passage below and answer the questions that follow. To the Top “Great works are performed, not by strength, but by perseverance.” -Samuel Johnson Have you ever wanted to give up on something ...
Thursday, March 14, 2013 at 11:22pm

sociology
There is a disparity between theory and direct observation. Because theories are based on observations, how are these theories first developed in the absence of direct observations?
Thursday, March 14, 2013 at 11:10pm

mathematics
the 1st term of arithmetic series is 2 .the 1st ,3rd and 11th terms are the first the terms of a geometric series. find the 6 terms of the arithemetic series
Thursday, March 14, 2013 at 10:54pm

Science
What was the main difference between Dalton's model of the atom and the model that was first developed by the Greeks?
Thursday, March 14, 2013 at 2:04pm

calculus
A new college textbook edition typically generates most of its sales in the year of its publication. Sales drop off in subsequent years as a result of competition from the used book market. Suppose that the annual sales of a particular textbook may be modeled by S(t) = 30,000 ...
Thursday, March 14, 2013 at 12:17pm

Statistics
As reported in Runner's World magazine, the times of the finishers in the new york 10 km run are normally distrubted with a mean of 1.02 hours and a standard deviation of 9 minutes. Let X denote finishing time for the finishers. Then, A. Find the percentage of finishers ...
Thursday, March 14, 2013 at 10:06am

science
If the block has a mass 12.3 kg and slides a distance of 6.9 m down the inlcine, calculate the distance x the spring is compressed if the coefficient of kinetic friction between the block and the incline is 0.3 and the spring constant is 17.4 N/m. Input your answer as a ...
Thursday, March 14, 2013 at 6:29am

Chemistry
48g of ice at its melting point is heated with steam at its condensation point. The final temperature of the system is 50 degree Celsius. How much steam was used to melt the ice? q=(48g)(1mol/18g)(50-0C)(0.97kcal/mol*C)​ = 129kcal Not sure where to go from here (or if ...
Thursday, March 14, 2013 at 12:38am

geometry
A right triangle prism has a volume of 2 cubic inches. A second right triangle prism is similar to the first one and has a volume of 128 cubic inches. A. What is the scale factor to go from the first prism to the second? B. What is the scale factor to go from the second prism ...
Wednesday, March 13, 2013 at 11:53pm

calculus
A new college textbook edition typically generates most of its sales in the year of its publication. Sales drop off in subsequent years as a result of competition from the used book market. Suppose that the annual sales of a particular textbook may be modeled by S(t) = 30,000 ...
Wednesday, March 13, 2013 at 9:32pm

Language Arts
I have the sentence...When I get home from school,I'm going to take a nap. I am supposed to underline the subjects and verbs. I know in the first part the subject is I and the verb is get. On the second part the subject is I. I'm not sure on the verb though. Is it am ...
Wednesday, March 13, 2013 at 6:06pm

can some1 plz recheck my answers
1. Which of the following is a specific goal? A. I will pass as many of my courses as possible. B. I will finish my college degree. C. I will devote Wednesday this week to work on my English research paper. D. To become a doctor is my goal. is it C 2. Which goal is realistic? ...
Wednesday, March 13, 2013 at 4:18pm

English
1. Which of the following is a specific goal? A. I will pass as many of my courses as possible. B. I will finish my college degree. C. I will devote Wednesday this week to work on my English research paper. D. To become a doctor is my goal. is it C 2. Which goal is realistic? ...
Wednesday, March 13, 2013 at 4:04pm

english
6. Anxiety is to test as procrastination is to: A. online learning. B. time management. C. goal setting. D. reading I'm confused between B, C 7. The first step toward making a change in time management is to: A. keep your eye on the clock. B. enlist somebody’s help to...
Wednesday, March 13, 2013 at 4:01pm

English
1. Which of the following is a specific goal? A. I will pass as many of my courses as possible. B. I will finish my college degree. C. I will devote Wednesday this week to work on my English research paper. D. To become a doctor is my goal. is it C 2. Which goal is realistic? ...
Wednesday, March 13, 2013 at 3:40pm

physics
A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700 {\rm kg}, and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to 2100N . The tension in ...
Wednesday, March 13, 2013 at 3:33pm

College physics
A toroidal solenoid has a mean radius of 8.00cm and a cross-sectional area of 4.80cm^2 and is wound uniformly with 90.0 turns. A second coil with 500 turns is wound uniformly on top of the first What is the mutual inductance of these coils?
Wednesday, March 13, 2013 at 3:26pm

English II
Revise the following paragraph until you can answer yes to each of the questions listed below. After you are finished, copy the revised paragraph in the space provided. 1. Does the paragraph have a clear purpose, and does each sentence contribute to that purpose? 2. Is every ...
Wednesday, March 13, 2013 at 1:06pm

calculus
A new college textbook edition typically generates most of its sales in the year of its publication. Sales drop off in subsequent years as a result of competition from the used book market. Suppose that the annual sales of a particular textbook may be modeled by S(t) = 30,000 ...
Wednesday, March 13, 2013 at 12:32pm

Science
Newton's first law of motion states that an object remains at rest unless a ___force acts on it. A.balanced B.frictional C.gravitational D. net I think it's D..?
Wednesday, March 13, 2013 at 12:14pm

math
in a triangle, the measure of the first angle is twice the measure of the second.the measure of a third triangle is 64 degrees more than athe measure of the second angle. Use the facts that the sum of the measures of the three angles of a triangle is 180 degrees to find the ...
Wednesday, March 13, 2013 at 10:41am

Physics
Review Conceptual Example 2 as an aid in understanding this problem. A velocity selector has an electric field of magnitude 2607 N/C, directed vertically upward, and a horizontal magnetic field that is directed south. Charged particles, traveling east at a speed of 6.81 103 m/...
Wednesday, March 13, 2013 at 10:33am

physics
Alice and Bob share a state a|++>+b|−−>, where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants his qubit to end up in the state a|0>+b|1...
Wednesday, March 13, 2013 at 4:18am

Algebra
Joe picks 2 distinct numbers from the set of the first 14 positive integers S = \{1,2,3,\ldots,14\}. The probability that the sum of the 2 numbers is divisible by 3 can be expressed as \frac{a}{b}, where a and b are coprime positive integers. What is the value of a+b?
Tuesday, March 12, 2013 at 10:11pm

Geometry
Six standard six-sided die are rolled. Let p be the probability that the dice can be arranged in a row such that for 1\leq k \leq 6 the sum of the first k dice is not a multiple of 3. Then p can be expressed as \frac{a}{b} where a and b are coprime positive integers. What is ...
Tuesday, March 12, 2013 at 10:04pm

Finance
An insurance company is offering a new policy to its customers. Typically, the policy is bought by a parent or grandparent for a child at the child's birth. The details of the policy are as follows: The purchaser (say, the parent) makes the following six payments to the ...
Tuesday, March 12, 2013 at 9:39pm

Grammar
Rewrite each of the following run-ons. 1). Originally, humans domesticated animals for transportation the first animals to be used this way were camels, goats and oxen. 2). Another important event was the invention of the wheel, later crude carts and wagons were invented. 3). ...
Tuesday, March 12, 2013 at 9:12pm

math
a new physician saw 841 clients during the first year of her practice and 1,072 the second. which represents the percentage increase in client volume? a. 22% b. 27% c. 78% d. 127%
Tuesday, March 12, 2013 at 4:56pm

Math
having trouble figuring out this problem. During the first 4 wks of school, a cafeteria worker made more than 840 tacos. She made the same number of tacos each week. Which inequality best represents t, the number of tacos she made during 1 week. a. t > 410 b. t < 410 c. ...
Tuesday, March 12, 2013 at 4:44pm

Quantum Physics
Alice and Bob share a state a| + +> + b |- -> , where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants his qubit to end up in the state a |0> + b |1&...
Tuesday, March 12, 2013 at 4:27pm

Quantum Physics
Alice and Bob share a state a| + +> + b |- -> , where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants his qubit to end up in the state a |0> + b |1&...
Tuesday, March 12, 2013 at 4:23pm

Quantum Physics
Alice and Bob share a state a| + +> + b |- -> , where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants his qubit to end up in the state a |0> + b |1&...
Tuesday, March 12, 2013 at 4:23pm

English
p w s a f m l x copy the letter string above on a piece of paper. cross out the second and last letters. replace all vowels with the letter C. Insert an O before the second C. cross out the first and third letters. Double the second letter. which letter sequence remains on ...
Tuesday, March 12, 2013 at 4:01pm

Christina Hercher borrowed $50,000 on a 90 day, 8 percent note. Christina paid$3,000 toward the note on day 40. On day 60 she paid an additional \$4,000 using the U>S. Rule. Christina's adjusted balance after the first payment is?
Tuesday, March 12, 2013 at 4:01pm

English
When I first posted this question. I din't explain it correctly and didn't find the answer I recieved funny. But my question is When a sentence contain a list of three or more phrases, each item should be separated with a comma. The questions is do I capitalize items ...
Tuesday, March 12, 2013 at 3:19pm

Physics
A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700 {kg}, and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to 2100N . The tension in the ...
Tuesday, March 12, 2013 at 2:44pm

life orientation
write a critical explanation on each of the following:the high drop out rate (why learners stop their studies)and failure rate in their first year at colleges or universities
Tuesday, March 12, 2013 at 1:37pm

Statistics
A box contains five numbered balls (1,2,2,3 and 4). We will randomly select two balls from the box (without replacement). (a) The outcome of interest is the number on each of the two balls we select. List the complete sample space of outcomes. (b) What is the probability of ...
Tuesday, March 12, 2013 at 1:06pm

STAT.
The average weight of a group of people is 156 pounds and the SD is 25 pounds. A statistician wants to transform the weights so that the transformed weights have an average of 100 pounds and an SD of 10 pounds. Fill in the blanks; both blanks must be filled in correctly for ...
Tuesday, March 12, 2013 at 12:11pm

STAT.
The average weight of a group of people is 156 pounds and the SD is 25 pounds. A statistician wants to transform the weights so that the transformed weights have an average of 100 pounds and an SD of 10 pounds. Fill in the blanks; both blanks must be filled in correctly for ...
Tuesday, March 12, 2013 at 12:11pm

Math: Probability
1. Which of the following is an example of a dependent event? (1 point) flipping two coins rolling a number cube and spinning a spinner choosing two scoops of ice cream choosing a cookie at random, eating it, and then choosing another at random 2. Which of the following is an ...
Tuesday, March 12, 2013 at 10:48am

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