Critical Thinking/Math

141,134 results, page 44

Statistics

1. In thinking about doing statistical analysis, the sample mean should be interpreted as: A.)a constant value that is equal to the population mean. B.) a constant value that is approximately equal to the population mean. C.) a random variable that is approximately equal to ...

Communication Question

Which is NOT an example of augmentative communication? story books, picture cards, sign language, or a tape recorder? Thanks for helping Please explain your definition of augmentative communication. I briefly researched this term and think that all four choices could be ...

maths

Data were collected on the differences in weight gains of 12 people one month after they stopped smoking, compared with their weight at the time when they stopped smoking. The data are given in Table 2. A positive quantity corresponds to a gain in weight, a negative quantity ...

Chemistry Logic

How can I tell a conjugate base from a regular base and a conjugate acid from a regular acid? For example, in: H2O + HONH3 (reversible arrows) HONH2 + H3O+ What is the acid, base, conjugate base, conjugate acid? Is there no base and conjugate base since HONH3 is an acid? The ...

chem

An automobile burns 65 grams of gasoline over 20 minutes. The gasoline combines with 100 grams of oxygen in this reaction, to form carbon dioxide and 47 grams of water. How much carbon dioxide is formed? do I use the heat capacity equation? How much oxyen is used to produce 47...

memo or letter

informative message that tells one of your colleagues at work or one of your friends how to enroll at school. which woul dbe the best way to send it I am thinking a memo am I wrong yep I think that is correct! yep I think that is correct! What is wrong with an oldfashioned ...

Math

A manufacturing company is thinking of launching a new product. The company expects to sell $950,000 of the new product in the first year and $1,500,000 each year thereafter. Direct costs including labor and materials will be 45% of sales. Indirect incremental costs are ...

Environmental Science

29. A common feature of thermal pollution and artificial eutrophication is that they both a. have sources that are difficult to identify and control b. cause large mats of algae to bloom in fresh water c. are a result of power plants and other industrial activity d. decrease ...

Science/Health

I didn't really know which category to place this into- but I have a question hopefully someone can inform me a little. I have been visiting my mother in the nursing facility this week. The resident beside my mother has a pan full of charcoal that was placed under her bed ...

Physics

Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of -8q. Sphere B carries a charge of +7q. Sphere C carries no net charge. Spheres A and B are touched together and then separated. Sphere C is then touched to sphere A and separated from it. Lastly...

science(chem)

I synthesized Nylon in my lab for organic chem. I need help figuring out the theoretical yield so I can compare it to my product that I synthesized. I looked up the reaction online on Google by typing in "Synthesis of adipoyl chloride and nylon 6.6." I clicked on the first ...

Nutrition (Blood Tests)

If there was an eight year old boy who wasn't get enough to eat and was not eating nutritious foods, what kinds of things would be wrong with him? What things would be wrong in his blood tests? This is what I'm thinking: - prolonged hunger - depression: reduced levels of ...

U.S History

Which group believed that failure to approve the Constitution would lead to chaos and mob rule? Federalists**** Anti-federalists 2. Which group believed a strong national government was critical to the country? Federalists*** Anti-federalists 3. Which group believed that only ...

English

From which statement in The Governess could you conclude that mistress is self important? A. I didn't bother making a note of it because I always do it*** B. Maybe you heard forty when I said thirty C. I excelled in mathematics. He gets that from his mother. D. The saucer wan ...

Physical Science Question 3

Compare the visible part of the ear to a satellite dish in terms of form and function. I will be happy to critique your thinking on this. WTF bobpursley? You are of no help to me on any of this! If I want you to "critique my thinking" I was ask you to, but no where in my ...

Math puzzeler

this one is so good (and not solved) I pulled it foreward in time Posted by quizzical on Thursday, November 16, 2006 at 6:24am. Hello, This is just a question that has stumped me for some time: We have a normal watch. The big hand is 4cm long and the little hand is 3cm long. ...

business

I have the first part done with either Marriott Intl or southwest airlines it is the second and third parts i am stuck on here is the entire assignment Assignment Type: Individual Project Deliverable Length: 4-5 body pages, 1 PERT chart, 1 Gantt chart Points Possible: 185 Due ...

Finance

Campus Print Shop is thinking of purchasing a new, modern copier that automatically collates pages. The machine would cost $22,000 cash. A service contract on the machine, considered a must because of its complexity, would be an additional $200 per month. The machine is ...

Math

The Bookholder Company manufactures two types of bookcases out of oal and walnut. Model 01 requires 5 board feet of oak and 2 board feet of walnut. Model 02 requires 4 board feet of oak and 3 board feet of walnut. A profit of $75 is made on each Model 01 bookcase and a profit ...

Critical Thinking

Identify any examples of fallacies in the following passages. Tell why you think these are fallacies, and identify which category they belong in, if they fit any category we’ve described. 1.Letter to the editor: “Andrea Keene’s selective morality is once againshowing ...

statistics

There are four children of di erent ages in a family. Their mom purchases six di erent gifts and decides to divide the gifts randomly between the children. Assuming that a child can receive no gift or multiple gifts, Thinking only about the number of gifts received by each ...

Statistics

Before i state my question I would like to note that I have to do a one tailed test but i don't know how to with the information given. I need a standard deviation, i need a mean, but do i use the mean for yrs drivin or number accidents. Please explain 2.) Car insurance ...

Physics - Projectile Motion

"A person fires a bullet horizontally from a gun at the same instant that another bullet is dropped from the same height as the rifle barrel. Discuss which bullet will hit the ground first." I'm thinking that the bullet that is dropped will hit first, because it does not have ...

Social studies needs your help!!

I am in a very tight situation. I am a grade 4 social studies teacher. In my classroom, I have students of mixed ability. Some students are above grade level, some on grade level and some below grade level. The bulk of students is below grade level. What activities or ...

Intro to Communication- Please proofread my paper

Here is my assignment task: My assignment was to watch the movie Gangs of New York with Leonardo DiCapro, and find 5 different cultures that faced discrimination within in the movie and use specific examples. Here is my paper. I am missing 2 more cultures. I also, think that ...

PHYSICAL CHEMISTRY

A.CALCULATE THE CRYOSCOPIC CONSTANT OF H2O. USE IT TO ANSWER THE FOLLOWING: a WEAK ACID HX is dissolved in water. A 0.250 molal solution has a freezing point of 0.5 C. calculate the value of ka for the acid, where Ka is the equilibrium constant for HX<--=-->H+ + X- Ka...

reversible reaction

A+B <-> C+D You mix some of A and B in a closed container and the reaction begins. As time passes, what happens to the amounts of A & B? As time goes on, what will happen to the rate at which A & B turn into C + D? Was there any C & D present when the reaction first ...

Physics

Measuring coefficients of friction. A coin is placed near one edge of a book lying on a table, and that edge of the book is lifted until the coin just slips down the incline. The angle of the incline Theta C, called the critical angle, is measured. (a) Draw a free body diagram...

Writing

Please point out mistakes,give feedback, and grade. ACT prompt: In recent years, many schools have adopted a "Great Books"- based curriculum. These schools require students to study certain designated classic books of Western civilizations, arguing that familiarity with these...

accounting

On January 1, 2004, Carnival Shipping bought a machine for $1,500,000. At that time, this machine had an estimated useful life of six years, with no salvage value. As a result of additional information, Carnival determined on January 1, 2007, that the machine had an estimated ...

English

I'm not too sure about the answer to these questions, just want to double check. 3. What mood is conveyed by the words, “I am all longing,” in line 29 of “The Wife’s Lament”? angry frantic (my answer) hopeless 5. Which sentence BEST combines the ideas shown below? ...

physics

a person jumps from a window 15m above a safety net. The survivor stretches the net 1.0 m before coming to rest. What was the average deceleration experienced by the person when they were slowed to rest by the net? I do know the answer is -150m/s2,but I don't know how the ...

Business Mgmt.

I need to write a paragraph on Identifying the demographics and characteristics of my customer( or consumer). What the customer needs will my product attempt to meet? My product or business is a shoe company that sells for all ages and all shoes sizes. Please help me. If you ...

chem 2

what is the mass of F in grams in 24.6 grams of SnF2? Convert 24.6 g SnF2 to mols SnF2. Convert mols SnF2 to mols F atoms. Convert mols F atoms to grams F atoms. 24.6 g SnF2*(1 mol SnF2/molar mass SnF2)*(2 mols F/1 mol SnF2)*(atomic mass F/1 mol F Atoms) = ?? Check my thinking...

statistics

A researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 490 college students showed that 33% of them had, or intended to, cheat on examinations. Find the margin of error for the 95% confidence interval. solution I have but what do I ...

Calculus

Solve the differential equation. Let C represent an arbitrary constant. (Note: In this case, your answer willto have a negative sign in front of the arbitrary C.) (dz)/(dt) + e^(t+z) = 0 --------------- (dz/dt) + (e^t)(e^z) = 0 (dz/dt) = -(e^t)(e^z) dz = -(e^t)(e^z)dt (dz/e^z...

college algebra

Isn't this a plug and chug? I will be happy to critique your thinking. Your equal signs in the function are not correct, I assume that is a typo. suppose a baseball is shot up from thr ground straight up with an initial velosity of 32 feet per second . A function can be ...

History

The quote below comes from Malcolm X: "I want Dr. King to know that I didn't come to Selma to make his job difficult. I really did come thinking I could make it easier. If the white people realize what the alternative is, perhaps they will be more willing to hear Dr. King." ...

Please check my Calculus

1. Given f(x)=-6/x, choose the correct statement A. The graph of f is concave upward on the interval (negative infinity, 0) B. The graph of f is concave downward on the interval (negative infinity, 0) C. The graph of f is concave upward on the interval (negative infinity, ...

ALGEBRA WORD PROBLEM! HELP!

And if a length of a rectangle is 3 more than twice the width and the are is 90 cm squared than what are the dimensions of the rectangle? The width of the rectangle is 43.5 and the length of the rectangle is 87. All together when you add it up it will make 90 cm squared. If ...

chemistry (heat of fusion/vaporization)

i need help setting this problem up. You have an insulated container of water that has a temperature of 83.2 C, you continue to add ice until the temperature reaches .6 C and you remove the excess ice, your volume increased by 79.8 mL. What amount of hot water did you have in ...

Science

How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could occur in individual ...

Science

How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could occur in individual ...

Science

How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could occur in individual ...

English

I urgently need to check this summary of a newspaper article. As I don’t know much of economy, I’d like you to check the use of words. Thank you very much. 1) Chinese economical and political influence is rising in Europe. Examples of its growth are the ownership of many ...

chemistry

Predict the effect of each of the following on the indicated equilibrium system in terms of which reaction will be favored (forward, reverse, or neither) H2(g)+Cl2(g)<=>2HCl(g) +184 kJ A)addition of Cl2 B)removal of HCl C)increased pressure D)decreased temperature E)...

military,math

can someone please help me with these problems. The posted speed limit for trucks along national route 3 is 35mph. how many kilometers will a convoy cover after 3.7 hours on the road traveling at the posted. a) 804.85 b)129.5 c)208.37 d)80.4 The village of Umatata does not ...

Science

How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could occur in individual ...

Science-Ms.Sue

How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could occur in individual ...

Chemistry

I want to know the enthalpy change for this reaction which occurs in a blast furnace: Fe2O3(s) + 3C(s) --> 2Fe(l) + 3CO(g) You will need the heat of formation for CO, and ironIIIoxide, and the heatofmelting for iron. I suspect you have some temperature in mind also which ...

Finding the Molecular Formula

A certain compound containing only carbon and hydrogen was found to have a vapor density of 2.550 g/L at 100 degrees C and 760 mm Hg. If the empirical formula of this compound is CH, what is the molecular formula of this compound? I had some ideas as to how to solve this ...

science (CHECK plz)

How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could occur in individual ...

physical geography

1- A traveler leaves lima, Peru( approximately 12 degrees S Lat. And 90 degrees W. long.) at 8:00 am on Tues. Oct. 3rd and travels for 14hrs before arriving in Sydney, Australia( approx.34 degree S and 150 degrees E). what time and what day would the traveler arrive according ...

English

I'm posting you a paragraph I wrote containing phrasal verbs. This is more urgent than the previous one. Thank you. 1) My friend looked very upset so I thought she needed to brighten up. I invited her to the cinema and she accepted. I thought popcorns would cheer her up. 2) I ...

physics

Two thin rectangular sheets (0.06 m 0.52 m) are identical. In the first sheet the axis of rotation lies along the 0.06 m side, and in the second it lies along the 0.52 m side. The same torque is applied to each sheet. The first sheet, starting from rest, reaches its final ...

literature

what is a literature web? Greta, I imagine that is a reference to using a search tool. If you put "literature web" into a search engine such as Google, you will get a number of sites on various types of literature. I hope this helps. Thank you for using the Jiskha Homework ...

nuclear chem

i need help solving this. Can you guys show me how it's done. Radium-226 decays by alpha emission to radon-222, a noble gas.What volume of pure Radon- 222 at 23oC and 785mmHg could be obtained from 543.0 mg of radium bromide,RaBr2 in a period of 20.2 years.The half-life of ...

chem -repost for bobpursley

i don't know how to solve this. looked through all my notes but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand the theory behind this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g...

Logic

This exercise relate to the inhabitants of the island of knights and knaves created by Smullyan, where knights always tell the truth and knaves always lie. You encounter two people, A and B. Determine, if possible, what A and B are if they address you in the way described. If ...

English

Hi, I recently posted a question about postmodern and modern theories of criticism, and I still don't really understand it. Could someone please explain these two to me? I found some info.. but I still kinda don't understand. "Postmodernism represents the rejection of the ...

math

how to define arc cosine(cosine x) for -360 deg<x< 360 deg?? a proper conceptual approach to the solution will be appretiated.. The function Cos(x) is equal to 1 at x = 0 and it decreases as a function of x until x = pi (=180 degrees). There the cosine is minus one. So, ...

Physics

1) The speed of light in a certain liquid is 3/5 the speed in a vacuum. What is the index of refraction of the liquid? 2) A ray of light strikes a piece of glass (n=1.52) and makes an angle of 50 degrees with the surface. What angle does the refracted ray make with the surface...

Physics

1) The speed of light in a certain liquid is 3/5 the speed in a vacuum. What is the index of refraction of the liquid? 2) A ray of light strikes a piece of glass (n=1.52) and makes an angle of 50 degrees with the surface. What angle does the refracted ray make with the surface...

Managerial Economics

As a VP of sales for a rapidly growing company, you are grappling with the question of expanding the size of your direct sales force (from its current level of 60 national salespeople). You are considering hiring from 5 to 10 additional personnel. How would you estimate the ...

Environmental Science

are these correct? 29. A common feature of thermal pollution and artificial eutrophication is that they both a. ave sources that are idfficult to identify and control b. cause large mats of algae to bloom in fresh water c. are a result of power plants and other industrial ...

chemistry URGENT

I need someone to check my answers to make sure that I have the correct answers. (3 Part Question) Two students each measure the density of a quartz sample three times: Student A Student B 3.20 g/mL 2.82 g/mL 2.58 g/mL 2.48 g/mL 2.10 g/mL 2.59 g/mL mean 2.63 g/mL 2.63 g/mL 1. ...

Science

How did Darwin and Lamarck differ in their thinking about change in species? Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism’s environment. Darwin thought that change could occur in ...

History hellp pleasse

Hi please help with my question Even if you didn't mind the consequences , why would you still be very unwilling to speak out against hitler and the Nazi ? Please help That is obviously a personal opinion you need to decide on and then be able to explain. Consider this: If you...

chemistry

Hi! i'm kinda having trouble getting this.. Don't understand it really from Ca(OH)2 + 2HCl-----> CaCl2 + 2H2O How do i calculate Ca+? :You need much more information. 1) do you mean the concentration of Ca+ ion? 2) is there excess HCl? What is given? ok It was from a ...

science (any tutor)

2. How did Darwin and Lamarck differ in their thinking about change in species? A.Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism’s environment. B.Darwin thought that change could occur in ...

Science

According to the continental drift theory, which of the following land regions should show the greatest similarities in fossil types? (1 point) A) east coast of South America and west coast of Africa B) east coast of South and west coast of South America C) northern coast of ...

Poetry

Okay, heres an "I am" poem. But I need help on what to put for the "i am" lines. It has to be two personality characteristics. The theme is about the world being destroyed. I was thinking of using "I am hopeful and amazed", but don't if that would fit into the theme. I am,,, I...

English

17. Some people believe that feelings should be nurtured and cherished, while others argue that feelings should be curbed and kept under control. Indicate one poem that demonstrates the desire to restrain emotion and one poem that demonstrates the desire to cherish emotion. ...

Critical Thinking

Is this an argument? If the recent evidence of deterrence is shown to be correct, then opponents of capital punishment will face an uphill struggle on moral grounds. Premise: If the recent evidence of deterrence is shown to be correct Conclusion: then opponents of capital ...

Physics - repost to MathMate or whoever can help

A 10-kg iron ball is dropped onto a pavement from a height of 100 m. Suppose half of the heat generated goes into warming the ball. Show that the temperature increase of the ball is 1.1oC. (In SI units, the specific heat capacity of iron is 450 kJ/kg*oC.) Why is the answer the...

english

Need help identify logical mistake, in this paragragh. People are overreacting and taking this so seriously, blowing it completely out of proportion. There was no harm done and I don’t see why they are making it a big deal. I seriously doubt any controller would put a kid on...

English

I have a question we were suppose to analyze The River by Bruce Springsteen in which a guy speaks of how the youthful dreams his girlfriend and him have had all disappeared. He remembers those dreams the way he remembers the way they used to go to the river to swim. The river ...

Psychology

Here is the scenario. -------------------------------------- Are Smarties as addictive as drugs? A new research study proves that Smarties, Canada’s favourite chocolate candy, are as addictive as cocaine. Cocaine is a psychedelic drug that is known to be highly addictive. To...

health

Consider the following scenario: Mr. Smith was admitted to the hospital for surgery on his left knee. When Mr. Smith woke up from the anesthesia, he realized that his right knee had been operated on. You have been asked to form a team to analyze this wrong-site surgery. In ...

need help

what are italic words in paragraphs???? In English, we use italics for the titles of books and movies (and anything else that would be underlined, not put in quotation marks). We also use italics for words from another language. For example, if you use a French phrase in your ...

Chemistry

Which would have greater entropy? 1. Br2 or 2Br? 2. CH4 at 25 Celsius or CH4 at 45 Celsius? 3. 1 mol CH4 in 1-L H2O or 1 mol CH4 in 2-L H2O? This is a very good question. I will be happy to critique your thinking. I would say first that Br2 would have more than 2Br because don...

Math

Can somone help me with this word problem....thanks The cut-right company sells sets of kitchen knives. The basic set consists of 2 utility knives, 1 chef's knife. The Regular set consists of 2 utility knives, 1 chef's knife, and 1 slices.The deluxe set consist of 3 utility ...

Statistics

Can someone please help with this problem to advise how to set up and in the book Essential of Statistics for the Behavioral Sciences. A researcher is investigating the effectiveness of a new study-skills training program for elementary school children. A sample of n=25 third-...

English

I have an essay i need to write and the questions i need to answer are "Why do you think Romeo and Juliet remains so popular?"and "What is it about the characters of Romeo and Juliet that makes it so easy for young people to relate to them?" I need two example from the play to...

Physics

Bob and Bob Jr. stand at open doorways at opposite ends of an airplane hangar 25 m long. Anna owns a spaceship, 40 m long as it sits on the runway. Anna takes off in her spaceship, then swoops through the hangar at constant velocity. At precisely time zero on both Bob's clock ...

History

Hey I need help finding why "Capitalism has produced great wealth and inequalities in today's world." http://www.google.com/search?q=capitalism&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA There are several good articles here. Be sure to read...

More About Buddha.....

I just can't get enough of Buddha.... please give me more information about Buddha and his accomplishments..... what did Buddha eat while he was sitting under the Bodhi Tree? Why is Buddha portrayed as being overweight, anyway? He would have been pretty slim, considering that ...

General

Please understand that I am not upset with anyone or whatever I just want to know something. I have some work to be checked and the regular tutors here say that "we will be happy to critque your thinking" right? Ok so when someone comes to this site and only post questions ...

Trigonometry - Checking my work

Find the sum of the three smallest positive values of theta such that 4 cos^2(2theta-pi) =3. (Give your answer in radians.) Hi guys, I've been struggling with this problem. Here's my thinking about the problem: we can rewrite the equation as cos^2(2theta-pi) = 3/4 Then we sqrt...

English

1. Describe the program with gestures. 2. You have to gesture the kind of program in mind. 3. Mime the kind of program you like. 4. Gesture the kind of program you like best. 5. You have to describe the kind of program you are thinking of with mime. 6. You have to act out the ...

physiology

Heres the scenario: You stop at McDonald's and buy a Sausage Biscuit. Thinking about the chemical breakdown of foodstuffs, these are the questions... 1) what the main food molecule is in each part of the sandwich 2) where in the digestive tract each part of the sandwich would ...

English

I urgently need you to help me find the proper words. Thank you Writeacher 1) Thank you very much for sending me the list of your students. I was thinking of creating a link to our partnership ( I don't know how to express this) on my school webpage. 2) Five of your students ...

algebra

Find the volume of a right circular cylinder whose base has an area of 6 cm^2 and whose height is 17 cm. am i right that V=(b1+b2)H Check the formula you used. The volume of a right circular cylinder is V=pi*(r^2)*h where r is the radius and h is the height, or V=B*h where B ...

chemistry

A student performed the freezing point depression experiment according to directions but mistakenly recorded the mass of lauric acid as 8.300g instead of8.003g. The calculated molar mass of the unknown acid will be GREATER/LESS than true value b/c mass of lauric acid appears ...

Biology

If plants need oxygen for cellular respiration, then why do plants release oxygen into the atmosphere? More oxygen is produced during photosynthesis than the plant needs for cellular respiration, so the plant needs to release the extra oxygen. Plants need to collect more ...

Chemistry

Write rate law expressions? 2NOCl(g) --> 2NO(g) + Cl2(g) S2O3^2-(aq) + H^+(aq) --> HSO3^-(aq) + S(s) (Sulfur initially forms a colloid solution so it can be treated as aqueous.) (1) Write the rate law expression for the above reactions, assuming these are elementary. (2...

Probability

Please help.. Find the probability of getting 2 hearts if the cards are drawn from a regular deck and the first card is not replaced. A true/false quiz consists of twenty questions. If a student answers the twenty questions by making random guesses, what is the probability of ...

STATS (PLEASE CHECK)

16-To test the hypothesis H0 : ì = 100 against H1 : ì > 100, a statistics practioner randomly sampled T observations and found the mean x = 106 and the standard deviation sx = 35. The value of the test statistic is equal to (1) 1.1743 (2) −1.7143 (3) 0.1714 (4) 17....

Didn't do research paper

I have a research paper due TOMOROW that my English teacher assigned 2 weeks ago. I waited until Friday to start thinking i could rush it, but so far I have nothing. I did tons of non-stop research and got to page 2 when I realized I was "writing in circles" because I had a ...

Science ( No Bad Post)

1. A muscle that does its job without your thinking about it is called a _______ muscle. An example is the _______. (1 point) cardiac; bicep skeletal; blood vessels smooth; bladder none of these 2. The body's muscles, bones, and joints work together like a lever...

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