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April 23, 2014

Search: Statics

Number of results: 102

statics
The very least you should learn from the study of a subject is how to spell it. These questions are about statistics. "Statics" is a topic in basic civil engineering (mechanics of non-moving rigid bodies).
Saturday, June 7, 2008 at 2:20am by drwls

Statics for Engineers
Knowing that the coefficient of static friction between the collar and the rod is 0.35, determine the range of values of P for which equilibrium is maintained when theta = 50 degrees and M = 20 Nm. From 9th edition Beer, Johnston Vector Mechanics for Engineers Statics
Wednesday, October 6, 2010 at 8:13am by Laine

statics
I have to come up with a statics problems. i have to make up a problem and take photos that includes a frame or machines. Machines, like those tractor machines or amusement ride. For a frame though, is a step stool that folds considered as a frame. The sides are connected and ...
Sunday, November 16, 2008 at 8:26pm by jen

please help statics
I have to come up with a statics problems. i have to make up a problem and take photos that includes a frame or machines. Machines, like those tractor machines or amusement ride. For a frame though, is a step stool that folds considered as a frame. The sides are connected and ...
Tuesday, November 18, 2008 at 12:10am by jen

statics
4. a 5.b 6.b 7.d
Saturday, June 7, 2008 at 2:20am by anissa

statics
a a b a c
Saturday, June 7, 2008 at 2:20am by Anonymous

statics
fffefewfew
Saturday, June 7, 2008 at 2:20am by Anonymous

Statics
HELP PLEASE
Tuesday, July 19, 2011 at 3:03pm by Faith

physics
can you explain briefly about fluid statics?
Friday, October 14, 2011 at 12:36pm by jagadheeswar

Statics
=2.325(3.25/ square root of 100) =75.5625
Saturday, December 1, 2012 at 11:35am by Heather

Statics
Your numbers require dimensions. Feet? Meters? Pounds? Slug/ft^3?
Sunday, November 25, 2012 at 10:56pm by drwls

statics
Just what IS the question? Or, in other words, how would you lik us to h elp you? Sra
Sunday, March 15, 2009 at 11:09pm by SraJMcGin

Statics
What are Fb and Fv? Is one of them the rupture or yield stress? What factor of safety do you wish to use?
Wednesday, December 7, 2011 at 8:03am by drwls

AP Physics - Static Equilibrium
W is the center of mass. The moment of inertia does not play a role in statics problems.
Friday, November 27, 2009 at 11:07pm by drwls

statics
Dullco Manufacturing claims that its alkaline batteries last forty hours on average in a certain type of portable CD player.
Saturday, June 7, 2008 at 2:20am by pamela

Statics
Two identical spheres of radius 80mm and mass 2 kg on the surface of the earth are placed in contact. Find the gravitational attraction between them.
Friday, April 19, 2013 at 6:03am by Woz

English
Where can I search poverty in my community and its poverty statics for their respective areas? For instance, MN. Thank you.
Monday, February 24, 2014 at 3:22pm by Jessica

statics equilibrium
put ur finger in ur ass then samal it u feel beter and smart
Thursday, October 19, 2006 at 12:31pm by dsd

statics
σ = sqrt [ σ2 ] = sqrt [ Σ ( Xi - μ )2 / N ]
Saturday, September 17, 2011 at 8:43pm by Anonymous

Mechanics:Statics
weight=900*(6378/6378+9)^2
Friday, April 19, 2013 at 5:59am by bobpursley

business statics
a random sample of the grade of 78 students is taken. what is the probability that the average grade will be between 80.3% and 82.3%?
Sunday, October 21, 2012 at 8:21pm by kenneth

Statics
A candy machine distributor collects the coins from 100 machines. The standard deviation is $3.25. With probability 98%, what is the maximum error about the true mean that will result?
Saturday, December 1, 2012 at 11:35am by Heather

Mechanics:Statics
A man weighs 900N on the surface of the earth. Compare his weight in an airplane flying at an elevation of 9000m. Note that the radius of Earth is 6378km.
Friday, April 19, 2013 at 5:59am by Marc

educational statics
It would help if you proofread your questions before you post them. The scores are so far below 700, none would be admitted (mean = 11 or 9, SD = 12.
Sunday, July 10, 2011 at 9:55pm by PsyDAG

Mechanics:Statics
Two 10 kg spheres are placed 500mm apart. Express the gravitational attraction acting on one of the spheres as a percentage to its weight on earth.
Friday, April 19, 2013 at 6:06am by Marc

Statics
The right angle uniform slender bar AOB has mass m. Assuming a frely hinged pivot O, determine the magnitude of the normal force at A and the magnitude of the pin reaction at O.
Tuesday, October 16, 2012 at 1:34pm by Margaret

Statics
An ace,king,Jack of Clubs or Queen of Diomonds Occure While Drawing aCard frrom a Deck of Well-Shuffeled ordinary Deck of Playing cards Find the Probability?
Thursday, December 31, 2009 at 10:43am by Hafiz

Statics
An aluminum wire has a diameter of d in. Determine the minimum diameter D of the coil in which the wire can be wound without exceeding a bending stress of 30,000psi
Monday, April 23, 2012 at 1:45pm by Mary

statics
It can't be right because 1 % of 5,000 = 50. 3700/5000 = 0.74 = 74% Ahh -- that looks right because more than half of the households returned the census forms.
Wednesday, September 16, 2009 at 2:29pm by Ms. Sue

statics
test 55%answer correct 44 correct answers how many questions on test
Monday, August 8, 2011 at 11:40pm by jo

Statics
Fb=allowable bending stress and Fv=unit shearing stress , I just need to find the minimum diameter allowable to meet those conditions
Wednesday, December 7, 2011 at 8:03am by Jon

Biology (Science)
Are you just guessing? 1. What peers are mentioned? Not frogs. Data 2. Observation 3. "statics" or statistics? Although "Analysis" is not listed in your word bank, it applies here. 4. What are other scientists considered to be? 5. This is the only one you got right.
Wednesday, August 21, 2013 at 1:15pm by PsyDAG

CT
1. I believe that the author has a bias because of the following quote. "Compared with a wide range of other programs and efforts to reduce drinking among teenagers, increasing the legal age for purchase and consumption of alcohol to 21 appears to have been the most successful...
Wednesday, May 28, 2008 at 6:55pm by Curtis

statics
One force down at each end, and a force up at the pivot equal to the sum of the two end forces should be all you need in the free body diagram.
Saturday, September 20, 2008 at 1:47pm by drwls

statics
A bag contains 4 balls, each of which have a positive integer written on it. LetXbe the random variable of the value written on a single ball drawn from the bucket. IfE[X]=8,what is the maximum possible value ofE[X^2]?
Monday, June 24, 2013 at 1:07pm by stranger

Statics
A solid, round simply supported steel shaft has a diameter of 25mm and span length of 500mm. The shaft supports a concentrated load of 3kN at midspan. Calculate the maximum deflection of the shaft.
Monday, April 23, 2012 at 1:49pm by Mary

COM/220
Stated this wrong. Topic is on Cancer. Doing assignment on Breast Cancer. Should I not tell what it is. What are some of the causes, the statics, treatments, etc. Trying to figure out a thesis topic
Tuesday, September 16, 2008 at 8:20pm by Doris

Physics
A 5.0 kg object is at rest with to forces applied to it, and a frictional force holding it in place. The two applied forces are: 15.0 N [x 60degrees y] and 12.0 N [x 215degrees y]. what is the coefficient of statics friction
Monday, March 21, 2011 at 7:28pm by priyank

Statics
A log of diameter D is available to be used as a beam carrying a uniformly distributed load of 400#/ft over a length of 32 feet. Determine the required diameter D necessary if Fb=1,200psi and Fv=100psi.
Wednesday, December 7, 2011 at 8:03am by Jon

Statics (P.S.)
ref: Eshbach: Handbook of Engineering Fundamentals. College Edition, 1952. What a great book! Mine cost me $6.40 in about 1957. It was a pleasure to consult it again. I am sure you will find the same formulas in many strength of materials texts and handbooks.
Wednesday, December 7, 2011 at 8:03am by drwls

Statics
An automotive engineer wants to use 64 test runs to estimate the true mean tire stopping distance. The standard deviation is assumed to be 32 feet. What is the probability that the error of the estimate will be more than 4 feet?
Sunday, December 2, 2012 at 10:43am by Heather

Statics
95% = mean 1.96 SEm SEm = SD/√n 10 ≥ 1.96 (40/√n) Solve for n.
Saturday, December 1, 2012 at 11:36am by PsyDAG

Statics
Assume that the population is normal. A sample of size 100 is taken. The resultant sample data has a mean of 48 and a standard deviation of 15. Construct the 99% confidence interval for the population mean.
Sunday, December 2, 2012 at 10:43am by Heather

AQA Mechanics (M1), Statics and forces,please help
Perform vertical and horizontal force balances (static equilibrium) and solve for the two unknown forces. Assume that both forces are normal to the smooth plane surfaces, and pass through the cylinder radii.
Monday, March 19, 2012 at 5:44am by drwls

Statics
diameter, d = 25mm = 0.025m I=%pi;d^4/64 Modulus of elasticity of steel, E = 200 GPa Span, L = 500 mm = 0.5m Point load, P = 3kN Maximum deflection occurs at the centre of the span (by symmetry) and is equal to δ = PL³/(48EI)
Monday, April 23, 2012 at 1:49pm by MathMate

statics
In a left-tailed test at = .05 we would A) comfortably reject the claim. B) comfortably accept the claim. C) feel uncomfortable with either decision (too close). D) switch to alpha of 0.01 for a more powerful test.
Saturday, June 7, 2008 at 2:20am by anonymous

Statics
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Class Frequency 61-63 19 64-66 17 67-69 5 70-72 10 73-75 12
Thursday, June 21, 2012 at 6:02pm by kesha

statics
The times for completing one circuit of a bicycle course are normally distributed with a mean of 81.7 minutes and a standard deviation of 8.6 minutes. An association wants to sponsor a race and provide prizes for the top (that is, fastest) 15% of riders. Where should they ...
Tuesday, July 10, 2012 at 4:53pm by john

Statics
85 lb force is applied to the 200lb crate, which is stationary before the force is applied. Determine the force exerted by the horizontal surface on the crate
Thursday, April 11, 2013 at 3:23am by Tasha

educational statics
how often does the university admit an exception student with a SAT score of x =700 or above Asample of 36 students (N)- 36 were randomly selected with mean (=11,and standard deviation (x=12. the sample mean score X=9.
Sunday, July 10, 2011 at 9:55pm by sandra

Statics
In designing an experiment, a psychologist is willing to assume that the underlying distribution for the time to learn a list of words is approximately normal with a standard deviation of 40 seconds. He wants to be 95% sure that the maximum error of his estimate of the mean ...
Saturday, December 1, 2012 at 11:36am by Heather

Statics
a solid hemisphere of weight W rests in limiting equilibrium with its curved surface on a rough inclined plane and its plane face is kept horizontal by a weight W1 attached to a point in its rim. prove that the coefficient of friction is W1/√(W(W+2W1))
Thursday, September 29, 2011 at 10:38am by Vasuki

educational statics
the average SAT score at a local university is (=60, and standard is (x=50. Assume that the university SAT score has a normal distribution convert a student score x=700 into z score
Sunday, July 10, 2011 at 9:45pm by sandra

Statics
A power company takes a random sample of its delinquent account files. For 400 accounts, the average delinquent amount was $239.30 with a standard deviation of $14.52. With 99% probability, determine the maximum error of the estimate for the mean of all the delinquent accounts.
Saturday, December 1, 2012 at 11:36am by Heather

statics
A 10kg block rest on top of a 50kg block. A force of 120n is being pushed on the 10kg block at an angle of 45 deg. What is the magnitude of frictional force between the blocks? The cofficient is force is .4
Sunday, December 9, 2012 at 10:35am by james

statics and strengths
A cantilever beam member made from steel with hollow circular cross section experiences an axial load of 300 KN (F1), and a vertical load of 200 kN (F2) as shown in the following figure. The beam is 300mm long and fixed on one end.
Saturday, August 4, 2012 at 12:47pm by shane

business statics (incomplete)
Need a measure of central tendency (mean) and a measure of variability (standard deviation). Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z scores.
Sunday, October 21, 2012 at 8:21pm by PsyDAG

Statics
Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of 0.2 inches and a standard deviation of 0.05 inches. What proportion of woodlice have antenna lengths that are more than 0.23 inches? Round your answer to at least four decimal ...
Sunday, December 1, 2013 at 11:34am by C. Fenwick

statics
If you sent out 5000 census to households and 3700 answered would my percenatge be 1.35%. please tell me if i answered this corrrectly I took the 5000 and divided it with the 3700 and I recieved the answer of 1.35% Please help thanks Shelley.
Wednesday, September 16, 2009 at 2:29pm by shelley

Statics
A random sample of 100 cans of peaches has an observed mean weight of 48.5 ounces and a standard deviation of 2.4 ounces. Determine the lower limit of the 95% interval for the true mean weight. The can label says that the can weights 48 ounces. Comment on this claim.
Saturday, December 1, 2012 at 11:36am by Heather

Psych
I have a test that accurately predicts who will learn statics quickly. My test has a. predictive validity but not reliability b. content validity but not predicitive validity c. predictive valisity and reliability d. neither validity nor reliability
Wednesday, March 21, 2012 at 2:36pm by Ashley

statics
Suppose we want to estimate the average number of purchases in a given hour in a local convenience store. Using this example, describe in your own words how you would go about determining this average through: a. Drawing a random sample b. Drawing a systematic sample c. ...
Friday, March 23, 2012 at 2:36pm by Anonymous

AQA Mechanics (M1), Statics and forces,please help
The diagram shows a cylinder of mass 20 kg lying at rest on two smooth planes inclined at angles of 40 degree and 50 degree to the horizontal. Calculate the reaction force exerted by the planes on the cylinder. For digram, please click the following link
Monday, March 19, 2012 at 5:44am by Bob

AQA Mechanics (M1), Statics and forces,please help
thanks drwls, please explain little, tnx The diagram shows a cylinder of mass 20 kg lying at rest on two smooth planes inclined at angles of 40 degree and 50 degree to the horizontal. Calculate the reaction force exerted by the planes on the cylinder.
Monday, March 19, 2012 at 5:44am by Bob @ drwls

statics
A manufacturer of golf equipment wishes to estimate the number of left-handed golfers. How large a sample is needed in order to be 90% confident that the sample proportion will not differ from the true proportion by more than 2%? A previous study indicates that the proportion ...
Saturday, April 2, 2011 at 2:13pm by gg

economics
2. Suppose that the quantity of corn supplied depends on the price of corn, p; and the amount of rainfall, R: The demand for corn depends on the price of corn, p; and the level of income, Y: The equations that describe the supply and demand relationships are Qs = 20R+100p Qd...
Friday, February 4, 2011 at 10:39pm by yas

science
In a statics problem (in which an object is stationary or has constant velocity), the net force vector is zero. That means the sum of the force components in any direction is zero. In a dynamics problem, the net force equals mass times acceleration. That is how all such ...
Tuesday, January 6, 2009 at 7:13pm by drwls

Statics
A gate rotates at point A and releases water when the water's depth, , exceeds a certain value. (Figure 1) The gate's width (perpendicular to the image) is = 3.00 , the water's depth is = 4.04 , and point A is located at = 2.02 . What is , the magnitude of the horizontal force...
Sunday, November 25, 2012 at 10:56pm by John Wayne

statics
One force of 10k going NEtowards a point(A) at an angle of 40 degrees another force (F2) going SE from pt(a) at slope of 3,4,5 triangle and F1 horizontal going W towards pt (a) find F1 and F2 i was using force triangle but got off track wasn't able to get two forces can anyone...
Saturday, March 27, 2010 at 9:32am by stacey graham

AQA Mechanics (M1), Statics and forces, please hel
A particle of weight W is attached by a light inextensible string of length a to a point A on a verticle wall. The particle is supported in equilbrium by a light rigid strut of length b attached to a point B on the wall at a distance a vertically below A. Show that the tension...
Sunday, April 1, 2012 at 10:38am by Tony

statics
You have a seesaw with 2 people on each end. the seesaw is on a pivot. label the forces in a free body diagram acting on the seesaw. Its online and I tried a force down on each end but then the pivot it keeps saying is wrong. I tried a force up from the pivot, a moment, force ...
Saturday, September 20, 2008 at 1:47pm by spencer

Statics
Use the midpoint of the intervals to determine values. Find the mean first = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard ...
Thursday, June 21, 2012 at 6:02pm by PsyDAG

statics equilibrium
hey every1, any1 know how to do statics questions? i have a few virtual work questions i have to get right by 2moro or i'll fail my course! please help... There are several engineers here who can assist. At What point from the left end should a uniform meter stick (cg.=50 cm ...
Thursday, October 19, 2006 at 12:31pm by laura

Statics
17. The Student Health Service assumes, based on historical data, that the height of female students is normally distributed with a standard deviation of 3 inches. The school nurse wants to estimate the average height of this years entering female students by examining the ...
Sunday, December 2, 2012 at 10:42am by Heather

statics
Jo, If you already have 55% and 44 as half the answer all you need is to divide the two to get the whole answer. 44/.55 =? This will give you the number of questions on the test. Practice percentage concepts. Once you get them down this type of question won't seem like a ...
Monday, August 8, 2011 at 11:40pm by CreativeTeacher

statics and strengths
We don't see the loading diagram. See more detailed response at: http://www.jiskha.com/display.cgi?id=1344099068
Saturday, August 4, 2012 at 12:47pm by MathMate

Statics
You wish to test whether or not a coin is fair, so you toss it 400 times and obtain 220 heads. Test the null hypothesis that the coin is fair and balanced against the alternative that it is not fair and balanced. Use the 1% significance level. Be sure to identify the null and ...
Sunday, December 2, 2012 at 10:44am by Heather

Statics
Assuming the crate is on a horizontal surface, so gravity is dedicated to the normal reaction N = 200 lb. force, and the 85 lb.force applied is used to overcome the static friction offered by the horizontal surface. Therefore the (resistive) force exerted by the horizontal ...
Thursday, April 11, 2013 at 3:23am by MathMate

Physics
Josh, if you dont know how to add two ninety degree vectors, and you are now in statics, something is greatly wrong. http://www.glenbrook.k12.il.us/GBSSCI/PHYS/Class/vectors/u3l1b.html
Thursday, August 6, 2009 at 7:28pm by bobpursley

English
1. some synonyms of reduce: decrease, diminish, lessen, minify, cut down 2. there is = singular but there are = plural (there are parts) (there is a part) 3. ok 4. either 5. yes 6. yes 7. hang onto the rope 8. a bit long. You could omit the first "and" 9. are to do / or are ...
Thursday, January 7, 2010 at 12:48pm by SraJMcGin

statistics
according to the energy information administration (officially energy statics from the US Government) the mean price for one gallon of unleaded regular gas in the US cities for the year 2007 was 2.80 A random sample of 30 pumps in georgia yielded and average price of 284 per ...
Tuesday, December 6, 2011 at 3:02pm by jen

Statics
An apple grower is trying to produce larger fruit by using a new fertilizer. The usual fertilizer produces fruit with a mean diameter of 8.7 cm. Two new fertilizer brands are under consideration, with the following experimental results: BRAND A: n = 10, mean = 9.5 cm, s = 4 cm...
Sunday, December 2, 2012 at 10:43am by Heather

statics
16. The Roper Organization conducted identical surveys in 1990 and 2000. One question asked women was, Are most men basically kind, gentle, and thoughtful? The 1990 survey revealed that, of the 3,000 women surveyed, 2,010 said that they were. In 2000, 1,530 of the 3,000 ...
Sunday, March 15, 2009 at 11:09pm by Kim

statics
Using the 68-95-99.7 rule: Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label firstDrawings need not be included in response...
Monday, May 3, 2010 at 10:45pm by Anonymous

Statics
You suspect that, on the average, professional baseball players are older than professional football players. A random sample of 30 professional baseball players has a mean age of 28.8 years (assume = 4). A random sample of 40 professional football players has a mean age of ...
Sunday, December 2, 2012 at 10:44am by Heather

Statics
That allowable shearing stress of 100 psi seems suspiciously low. There is usually a certain plane where the shearing stress is about half the tensile stress, so everything would fail in shear if the strength were that low. Look up or calculate the location and value of the ...
Wednesday, December 7, 2011 at 8:03am by drwls

Maths
Hello how do we get the resultant force of a vector id the the forces were in different directions ? and how do we use the parellogram thingi do we just add the forces? please can some1 explain me this in their own words thanks alot Since this is not my area of expertise, I ...
Thursday, June 7, 2007 at 2:26pm by Acer

Statics
For each of the following, state (using symbols) the null and alternative hypotheses. a. Is the mean IQ of a sample of 60 children significantly below the national average of 100? b. Is the proportion of men in the class more than that expected by chance? c. Does the mean ...
Sunday, December 2, 2012 at 10:45am by Heather

Physics HELP!
In teaching physics and engineering in the United States, the use of the term "centrifugal force" is usually discouraged, since it is a pseudo-force (or virtual force) that one must add when using a frame of reference that is rotating. If you use that approach, which is ...
Saturday, December 25, 2010 at 12:33am by drwls

Statics
Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 44 male ...
Tuesday, July 19, 2011 at 3:03pm by Faith

Statics
Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 41 male ...
Tuesday, July 19, 2011 at 3:03pm by Marie

English
Could you review this outline for a persuasive essay? Was it done correctly? Outline for negative impact of credit card companies marketing to students on campus Com 156 My introduction to the topic and my thesis statement. Introductory Paragraph: Even though students having ...
Monday, June 27, 2011 at 12:38pm by Student 155

Statics
In a chocolate chip cookie investigation, you decide to compare two cookie sources. Source 1: Mom mails to you a package containing a dozen of her homemade chocolate chip cookies. Source 2: You purchase a dozen of a store brand of chocolate chip cookies at the convenience ...
Sunday, December 2, 2012 at 10:45am by Heather

Biology (Science)
John uses mechanical "predators" to approach frogs at a pond shore, and he records the distance between predator and frog as the frogs jump. (PEER REVIEW) On a walk around pond John sees that small frogs on the shore only allow him to get within 5 feet before jumping into the ...
Wednesday, August 21, 2013 at 1:15pm by Sarah

statics
A cantilever beam member made from steel with hollow circular cross section experiences an axial load of 300 KN (F1), and a vertical load of 200 kN (F2) as shown in the following figure. The outside diameter of the beam is 50mm and the uniform wall thickness of the cross ...
Saturday, August 4, 2012 at 12:51pm by shane

statics
First, we do not see the loading diagram, but that does not stop me from giving a response. Also, for "f", you will need the properties of AISI 1040 cold drawn steel (yield stress). A cantilever is a statically determinate structure, so finding bending moments is a matter of ...
Saturday, August 4, 2012 at 12:51pm by MathMate

Statics
Lilly collects data on a sample of 40 high school students to evaluate whether the proportion of female high school students who take advanced math courses in high school varies depending upon whether they have been raised primarily by their father or by both their mother and...
Saturday, October 19, 2013 at 6:59pm by Terri

English
Hi I have to write an essay that is due on Monday. However, English not being my second language I am having a hard time starting this essay. I don't know where to begin, what information to included ect. Please help me with essay and give me an ideas. Your help is appreciated...
Friday, September 24, 2010 at 5:55pm by Amy

statics
This problem will introduce the learner into a technique called Analysis of Variance. For this course we will only conduct a simple One-Way ANOVA and touch briefly on the important elements of this technique. The One-Way ANOVA is an extension of the independent t test that ...
Saturday, October 19, 2013 at 7:00pm by Terri

statics
my professor has requested us to find out where the word "moment" evoled from. the moment of a force. the edimology of it. i have tried to locate this, and have since not found it. any suggestions? moment - 1340, "very brief portion of time, instant," in moment of time, from O...
Thursday, February 15, 2007 at 12:43pm by chris

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