First Aid

Physics
While swinging on the wrecking ball, a student notices that, at first, the wrecking ball is in line with her birdbath when it is at a peak in its trajectory, and in line with her front door at the lowest point in the trajectory. However, since drag is acting against the ...

Organic Chemistry
The compounds below are contained in a mixed sample. Rank the compounds in order of elitism if separated using a silica gel column rank them from what elutes first to what elutes last. Benzoic acid, 1,3-dichlorobenzene, tert-butylcyclohexane, and 2-pentanol So far from first ...

Physics
While swinging on the wrecking ball, a student notices that, at first, the wrecking ball is in line with her birdbath when it is at a peak in its trajectory, and in line with her front door at the lowest point in the trajectory. However, since drag is acting against the ...

Algebra
In an infinite geometric progression with positive terms and with a common ratio |r|<1, the sum of the first three terms is (26/3) and the sum of the entire progression is 9. Determine the progression. Find the first term and common ratio

Algebra
Find the sum of the first five terms of an infinite geometric progression with a common ratio |r|<1 if the second term is (4/3) and the ratio of the sum of the squares of the terms of the progression to the sum of the terms of the progression is 3:1.

Math
You need to buy some chicken for dinner tonight. You found an ad showing that the store across town has it on sale for $2.89 a pound, which is cheaper than your usual neighborhood store, which sells it for $2.99 a pound. Is it worth the extra drive? First, determine what ...

PE
You need eye drops for your dry eyes. You brought only a few dollars with you to the store. Which is the best method of choosing the right eye drops to buy for your soft contact lenses? 1. Compare brands first, but purchase the one that has lots of commercial advertisements. 2...

Calculus prince@18
let the function h(x)= (integrand symbol from 2 to x^2)arctan (t) dt. Find h'(x). This question confused me because i know the derivative of an integral is the original function. I just need help with finding the derivative of that integral. I don't know how to post integral ...

no subject
Ok first of all Ms.sue if cheaters are banned from posting then why do people constantly post answers on here to give others answer???? Yall on this website make it seem like yall have no home training at all. And on behalf of them krystina im sorry about them,and so sorry i ...

History - please check my answers
Which of the following of protections under the establishment clause of the first amendment? Select 2. -A father objects to his sons school including a daily prayer <<< -an Amish family objects to a law requiring schooling until age 16 -restrictions are placed on the ...

History - please check my answers
1. Which of the following statements best support the importance of a free and responsible press to the healthy functioning of a democracy? Select all that apply. (2 points) A free press protects the individual rights of all people.<< A free press encourages an informed...

Further Mathematics
The first term of a g.p is 7 while the common ratio is 3.find the 11th term.

Physics
A locomotive pulls 12 identical freight cars. The force between the locomotive and the first car is 150.0 kN, and the acceleration of the train is 2 m/s2. There is no friction to consider. Find the force between the eleventh and twelfth cars. (Express your answer to two ...

Calculus
My question is with a multi-part homework assignment that we got in class. The information given is : A factory manufactures widgets. The rate of production of widgets after t weeks is widgets/ week. The equation for this is dx/dt=30(1-(20/((t+20)^2))). The actual questions ...

Physics
I have this very confusing two part question that i am having trouble understanding. For the first question i first created a free body diagram to show the forces acting on both the boxes. However i am unsure of what to do after this since i don't understand how to use newtons...

Algebra
The value of a new car decreases by 35% in the first year. If a car costs $9,800 when new, how much less would it be worth at the end of the first year?

math
In the card game “Match,” the loser has to double the money of the other players. Juan, Jamal and Joey are playing. First Juan loses and doubles the money of Jamal and Joey. Joey loses the next hand and doubles the money of Jamal and Juan. Jamal loses the next hand and ...

Math
2. Write a ratio for the situation in three ways comparing the first quantity to the second quantity. In union City, about one in every three homes has two cars A. 5 to 2, 5:2, 5/2 B. 1 to 3, 1:3, 1/3 C. 5 to 3, 5:3, 5/5 D. 3 to 2, 3:2, 3/2

Algebra
Find the sum of 35 terms of an arithmetic series of which the first term is "a" and the fifteenth term is "9a."

Algebra
If the first and the last terms of an arithmetic series are 10 and 62, show that the sum of the series varies directly as the number of terms

Combining Sentences Using Adjectives
Change the second sentence in each of the following pairs into an adjective clause. Then, make the adjective clause part of the first sentence. You may have to add commas before and after some of the adjective clauses. 3. The West Bank is in the Judeo-Galilean Highlands. ...

Math
A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds. Connections answers please?

Further maths
The 8th term of a linear sequence is 18th and the 12th term is 26th .find the first term,common difference and the 20th term

Further maths
The first term of a linear sequence is 3 and the 8 term is 31. Find the common difference

Algebra 2 help
I don't have a calculator to solve these iterations... I really need help. The non-linear equation is f(x)= 4x - x^2 the intial value for the first one is 2.4 and 2.41 for the second one. Thank you so much!! f(2.4) = 4x - x^2 = f2(2.4) = 4x - x^2 = f3(2.4) = 4x - x^2 = f4(2.4...

Chemistry
A first order reaction ABC → AB + C has a rate constant of 0.0125 /s. If the initial concentration of ABC is 0.500 M, what is the concentration of ABC after 5 minutes? Note: do not include units in your answer, do not use scientific notation.

Maths
Sum of 3 numbers in GP is 39 and second number exceeds the first number by 6 . Find the numbers

Math
write a ratio for both ecuations in three ways comparing the first quantity to the second quantity 1.a zoo has 17 monkeys and 12 chimpanzees 2.in greenvile about 1 in every 8 homes has three computers

value
A machine has a velocity ratio of 6 and efficiency of 80%.What would be needed to lift a load of 80kg with the aid of the machine.

maths
Calculate S20 if the sum of the squares of the first integers is given by Sn=n(n-1)(2n+1)/6

Math
Suppose you want to install carpet in a hexagon room whose sides are all 15 ft long. Carpet costs $48 per sq yd and comes in rectangular rolls that are 12 ft by 90 ft. (Sold by the whole sq yd) How will you lay the carpet? Where will the seams be? How many pieces will you need...

verbal reasoning
write a word which rhymes with the first word and has the meaning given in brackets TOY (a warning for sailors)

physics ap
we'l find the time, t, for the ball to fall from the tabletop to the floor. use the equation Δy=viΔt+at^2/2. Take the vi to be zero and a to be 9.81 ±.02 m/s^2. you must first solve this equation for t. Δy=.922m what am i suppose to do with the acceleration because it has ...

ELA - English
1. Choose the correct part of speech for "my" from the sentence below: my friend cooper needs to go to the orthodontists office on wednesday because one of his brackets is loose * common noun objective pronoun possessive pronoun nominative pronoun 2. Choose the correct part of...

CHEM 114
I just want to know if it's possible for two reactants to be first order? I checked my work over and over and redid it and both of my reactants keep coming out to be first order

Algebra 2
In an infinite geometric progression with positive terms and with a common ratio |r|<1, the sum of the first three terms is 26/3 and the sum of the entire progression is 9. Determine the progression.

English
* Mattie’s first wish came true in 2001. -------------------- 1. in two thousand one 2. in two thousand and one (Can we read 'in 2001' in both ways?)

Algebra 2
The sum of four numbers in arithmetic progression is 16. The square of the last number is the square of the first number plus 48. What are the four numbers?

math
Ali is planning to keep fit through practicing push-ups for 21 days. on the first day, he can only do 14 push-ups in a minute. He plans to do x more push-ups in a minute on the next day. How many push-ups can he do in a minute on 11th days? (in term of x)

MS. SUE! World History (Absolutism and Revolution)
How did the monarchs of Austria and Russia use their power as absolute rulers? Select all that apply. (2 answers) -Maria Theresa of Austria expanded her territory along the northern Atlantic coast by defeating Norway. She strengthened Austria by refusing the help of the ...

World History (Absolutism and Revolution)
12. How did the monarchs of Austria and Russia use their power as absolute rulers? Select all that apply. (2 answers) -Maria Theresa of Austria expanded her territory along the northern Atlantic coast by defeating Norway. She strengthened Austria by refusing the help of the ...

English
1. The other student should make a counteragrument for the speaker's points after the argument. When the debate between the apeaker and some students finishes, the next speaker should come to the podium to deliver a speech. 2. The pros team is composed of three persons and the...

Englih
1. The guests talked about a lot of topics on the talk show. 2. The guests talked about a lot of topics in the talk show. --------------------------- Which one is correct? Do we have to use 'on' here? 3. First speaker, come to the podium, please. And deliver a speach about the...

maths
The party of kejriwal walks from gwalior to Bhuvneshwar. They first walk straight for 150km and then turn 45 ddegree towards Varansi and again go straight for 120km how for have they travelled from the initial place

math
in an arithmetic sequence 17th term is 9 times the first three terms and the 9th term is 6 less than 3 times the 1st term. Find the first three terms

math
in an arithmetics sequence the 17th term is 6 less than 3 times the 1st term. Find the first three terms

science
The work of which scientist(s) helped to explain light's ability to propagate through a vacuum? A. Maxwell ==B. Davisson and Germer C. Fresnel, Fraunhofer, and Arago D. Newton An object that has a height of 0.4 meter is placed at a distance of 0.7 meter from a concave ...

Spanish
I have some reading responses questions and answers to the play “La dama del alba”, I was hoping someone could edit my answers. The first answer is a paragraph summary of the first ten pages. The other questions are just short answer. I mostly want to make sure that my ...

Social studies
What is the best answer.site of the first battle of the revolutionary war. That is my question

Geologic Time and Earth's History Unit Te
1. An example of a geologic event that could be recorded in rocks is ____. a civil war the occurrence of sun spots a volcanic eruption a lunar eclipse 2. "The present is the key to the past." This statement rephrases the ____. principle of cross­cutting relationships law of ...

Check answers please: Health
1. When reading a recipe's ingredients, which substance makes the recipe an unhealthy choice if it is present in a high amount? A. Fiber B. Protein C. Trans fat*** D. Unsaturated fat 2. Of the five food groups, which one should be consumed in the smallest amount? A. Dairy*** B...

social studies 6th grade!!s
Which statement is correct? (1 point) Aborigines were the first people to settle Australia and New Zealand. Aborigines were the first people in Australia, and the Maori were the first people in New Zealand. The Maori were the first people in Australia, and Aborigines were the ...

Math
A woman drove her car on a road running due north at a given rate for 6 hours. She continued her trip on an unsaved road due east for 5 hours at a rate of 4mph slower. Had she been able to go to her destination in a straight line from her starting point and at her original ...

Math 1100
A pipe 24ft long is cut into four pieces, the first 4ft long, the second 5ft long, and the third 7ft long. What is the length of the remaining piece ?

Microbes and Society
The Forer Test of Personality that you took while reading this week's lecture notes appeared, at first glance, to offer insightful results. Later, you discovered that it actually displayed poor Answers: a. Divergent Validity b. Convergent Validity c. Split-half reliability d. ...

Math
Emily drives 1000km in the first week of her journey. Every week Emily increases the distance by 50%. So, in the second week she drives 1500km, and in the third week she drives 2250km. How far will she have travelled altogether after 5 weeks? A. 5062.5km C. 9650.5km B. 8125....

science
Bacterium called pathogen. The example of a beaker with a single bacterium in it. That divides and doubles itself. If you place the first bacterium into the beaker, how much time it takes to half full? And how much time it takes to full? if we put a bacteria in 720 milliliter ...

math
Ryan's team won 2 games and scored 27 points in the first game and 24 in the second game. They lost a game 40 to 18. What was the total number of points the team scored in the winning game?

math
108 is 36% of what number? Write and solve a proportion to solve the problem. First write the proportion to find the missing value, which I will replace it with n. 108/n = 36/100 Next write the cross products. So, 36n = 108 x 100 = 10,800 divide each side by 36. 36n/36 = 10,...

Math
System Of Elimination: Greg invested $11,000 in two accounts. The first account pays 5% interest per year. The second account pays 8% interest per year. Greg earned a total of $752.50 in interest at the end of the first year. How much did Greg invest in the 5% account? ~I don'...

math
A baseball diamond is a square with each side 90 feet long. What is the straight-line distance from third base to first base? (Round your answer to the nearest tenth.)

Government
What does the difference in the number of colonies that sent delegates to the Stamp Act Congress versus the First Continental Congress indicate about what was happening in the colonies? A. The colonies were now ready to break away from Britain B. The colonies were now ready to...

stats
Industry standards suggest that 18% of new vehicles require warranty service within the first year. Jones Nissan, sold 11 Nissans yesterday What is the probability that less than three of these vehicles require warranty service?

physics
A screen is placed 50cm away from a slit lit by a monochromatic light of wavelength 690nm. The distance seperating the first dark fringe and the third dark fringe in the diffraction pattern is 3mm. Calculate the width of the slit.

physics
A monochromatic light of wavelength 587.5nm illuminates a slit of width 0.75mm. At what distance from the slit should a screen be placed so that the first dark fringe is at 0.85mm from the center of the diffraction pattern?

science
Bacterium called pathogen. The example of a beaker with a single bacterium in it. That divides and doubles itself. If you place the first bacterium into the beaker, how much time it takes to half full And how much time it takes to full

ELA
1.which of the following names a type of figurative language a.(Metaphor) b.Rhythm c.Definition d.Dialogue 2.what of the following lines of poetry contains a simile a.the smell of sweet happiness swirls from the bakery door b.the last bird-song of the day greets the nights ...

Math
Carl had a part of a pizza. He gave 1/6 of a pizza to Susan. What part of a pizza did Carl have at first? Use the variable p.

ELA
Which of the following lines of poetry contains a simile? 1.The smell of sweet happiness swirls from the bakery door. 2.The last bird-song of the day greets the night's first star. 3.(Drops floated on the pool like pearls.) 4.Moonlight spilled on the meadow.

Engish
1. I don't agree with the statement that ..... 2. I don't agree with the first point that .... 3. I don't agree with the first step that .... (Can we use all the expressions? Which noun should we use? After the opponent speaker made a speech, s speaker of the other team wants ...

Economics
2. Identify three decisions that you (micro) have made recently. 3. Identify three decisions that our government (macro) has made recently. Use the internet, the newspaper, or television news to research this information. 4. List three resources that you allocate daily. ...

English
When we make a speech, which expressions do we have to use? 1. First, Second, Third, Fourth,(Last,) In short, 2. Firstly, Secondly, Thirdly, Fourthly,(Lastly,) To sum up,

math
Three softball teams ordered equipment from the same catalog. The first team spent $285 on 5 shirts, 4 caps, and 8 bats. The second team spent $210 on 12 shirts and 6 caps. The third team spent $250 for 7 shirts, 10 caps, and 3 bats. What were the catalog prices for shirts, ...

math
barry gave 1/8 of his stamps to Tom, if he gave 15 stamps to Tom , how many did he had at first?

Math
Dad bought an octagonal gazebo package. Does he cut the cedar planks first on the floor at 60 and 120 degree angles for this octagon shape?

Anonyms
Three angles of a hexagon are congruent. The other three angles are also congruent, each with a measure twice that of the first three. What is the measure of each angle?

Algebra
what are the first three terms of the sequence represented by the expression n(n-1)-4? n=1

chemistry
Explain the first ionization energy of lithium is greater than that of sodium

Physics
Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 38 km away, 19deg north of west, and the second team as 28.7 km away, 35deg east of north. When the first team uses its...

Physics
You drive 109 km/h east for 31 min , then 82 km/h north for 42 min . Let the +x-axis point east and the +y-axis north. A)Find your average velocity for the entire trip. B)Find your average speed for the entire trip. You should probably do part b first. Find the vertical ...

English
.) Read the following sentences from "The Pin". "That all changed when my family moved. My new school is three times bigger than my old school. At first, no one here knew me. The kids were polite, but they did not treat me like a good friend. For a few days, I felt sad and ...

English
Please please please check my answers and explain to me why they are right or wrong!!! 24.) Choose the correct voice of the underlined verb. (1 point) The pitcher THREW the ball to the catcher. a.) active** b.) passive 25.) Choose the correct voice of the underlined verb. (1 ...

Math
The third term of an A.P is 20, the fourteenth term is 64. Find the first term, the common difference and the nth term

English
Most of the following sentences lack at least one period, question mark, exclamation point, comma, semicolon, or colon. Add the correct punctuation where it is needed. I have added punctuation in second set of sentences. 1.African American author Maya Angelou read from her ...

English 2
Any links for these questions? I'm completely stuck and these are the last questions I have to answer to hand in my homework. My class expires in a couple weeks so any help is greatly appreciated. 11. As a romance hero, Arthur displays the quality of generosity when he A. ...

Math
Eric bought a package of loose leaf paper that contained 500 sheets. In the first week, he used 1/5 of the paper. During the next two weeks, Eric used 2/5 of the remaining paper. How many sheets of paper did Eric have available at the start of the fourth week? Choices A. 100 ...

Maths Probability
A box contains 4 pears and 7 Oranges. Three fruited are taken out at random and eaten. Find the probability that (1) 2 pears and 1 orange are eaten (2) The third fruit is eaten is an orange (3) The first fruit eaten was a pears. Given that the third fruit eaten is an orange

Microbes and Society
A classmate who missed last week’s first lab on microscopy observes a lab partner in this week’s lab using oil immersion with the 100x objective lens. She asks her partner why he used it.” To increase the magnification of the microscope” was his answer. Do you agree or...

american goverment check answers
2. Which of the following statements support the idea that free speech is essential for democracy? Select all that apply. (2 points) Free speech can be limited in times of war. Free speech advances knowledge. Free speech encourages the expression of opinions. Free speech is an...

psych
Identify each of the following consequences either positive reinforcement (PR), negative reinforcement (NR), negative punishment (NP) or positive punishment (PUN). NP 1. A teacher meeting with a parent makes that parent feel less powerful by having her sit on small, ...

psych
identify if it is Fixed Ratio (FR), Variable Ratio (VR) Fixed Interval (FI) Variable Interval (VI) VR 1. Getting paid for every widget you put on a machine in a factory VI 2. Pop (surprise) quizzes VR 3. Slot machines at Foxwoods casino FI 4. Getting to play computer games ...

test and measures
Suppose I want to use a test to help predict who will quit their jobs before the end of the three-month probation period. 100 new applicants are hired and the test is adminstered to all of them on the first day. Half of them quit before the end of the three month probation ...

math
The mean of Alice's last 5 math test scores is 88. The first 4 of these 5 math test scores were 87, 75, 93, and 85. What score did Alice earn on her fifth math test?

Physics
A uniform rod of mass 2 kg and length 1.41 m is hinged at its top end and allowed to swing in the vertical plane of the paper. It is initially stationary in a vertical position. A clay ball of mass 0.25 kg is propelled towards its lower end at a speed v. The ball sticks to the...

Art
Which statement best describes the difference between preservation and restoration? 1. Preservation is lengthy while restoration is relatively quick. 2. Restoration involves chemicals, while preservation uses special containers. 3. (Preservation is a highly complex science; ...

Math-algebra
Find k so that the line through ​(4, 1) and​ (k, 3) is a. parallel to 8x+9y=18 y= -8/9x + 8/9 ​ b. perpendicular to 3x+4y=8 y= -3/4x +2 I have solved both equation and found the slope, but I am not sure were to go from there. When I tried it the first time I got -17/2 ...

Calculus
Find the vertical translation of y=|x| that "supports" the parabola y = x^2. Hint: You should find 'c' so that y = |x|+c just touches y = x^2. You may as well consider only the right-hand side of the picture first. (Why?)

Algebra
Moshe would like to get tickets for President inauguration. It will take him 20 years. He decides to pay $200 the first year and the increase his payment by $60 each year. a) How much did he pay in the last year? b) How much did he pay altogether for the tickets?

math
Barrie had some stamps. He gave 1/8 of them to Tom. If he gave 15 stamps to Tom, how many stamps did he have at first?

math
Mrs. Jones wants to go shopping so she asks her husband for some money. Being busy, he just tell her to take what she needs out of his wallet. She first stops and buys a coat which costs her half of her money plus $2. She then stops and buys a dress, which costs her half of ...

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Homework Help: Health