Thursday
October 23, 2014

Posts by Sandy


Total # Posts: 660

Physics
What is the potential energy of a 3kg ball that is on the ground. -do i do mgh? (9.8)(3kg) ?
November 22, 2009

Science
1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors? 2) Vector is 3.00 units in length and points along the positive x-axis. Vector is 4.00 units in length and points along the negative y-axis.Use graphical methods to find the...
November 19, 2009

stats
An automobile repair shop has determined that the average service time on an automobile is 2 hours with a standard deviation of 32 minutes. A random sample of 64 out of 400 services is selected. What is the probability that this sample will have a mean service time greater ...
November 11, 2009

statistics
In a local university,40% of the students live in the dormitories. A random sample of 80 students is selected for a particular study. What is the probability that the sample proportion (the proportion living in the dormitories) is between 0.30 and 0.50?
November 11, 2009

math
A hammer thrower releases the hammer after reaching an angular velocity of 14.9 rad/s. If the hammer is 1.6m from the shoulder joint, what is the linear velocity at release?
November 4, 2009

english
Hi....I'm having trouble finding a song that shares a connection or a relationship to Hamlets "to be or not to be" sililoquy. Do you have any suggestions? Thankyou
November 4, 2009

math
Mrs leuenberger ran the same maraton but since her husband was hunting and she couldnt find a babysitter she had to carry her two daughter in her arms They weigh 40 pounds and 55 pounds Mrs Leuenberger weighs 145 pounds How much work pound did Mrs Leuenberger expend if she ran...
October 25, 2009

Science
Matings between hairless & normal dogs always produce hairless & normal offspring in a 1:1 ratio. In matings of two hairless dogs, hairless & normal dogs are always produced in a 2:1 ratio. How can these results be explained?
October 12, 2009

physics
A magnetic field is perpendicular to the plane of a single turn circular coil. The magnitude of the field is changing so that the emf of 0.80 V and a current of 3.2 A are induced in the coil. The wire is then re-formed into a single turn square coil, which is used in the same ...
October 8, 2009

Chemistry
Determine the mass of each reactant needed to give 1.5 mol of HNO3 NO2(g)+H2O(l)---> HNO2(aq)+HNO3(aq)
October 7, 2009

economics case analysis
thank you so much for you've got the point. maybe i am noy familiar with the economic terms my teacher told me, so i have no idear how to finish it. you are so kind to enlight me! thabk you a million!
October 4, 2009

Science
How long would a day be in seconds if the Earth were rotating so fast that objects at the equator were apparently weightless?
October 2, 2009

5th grade
estimate 5,602 - 2,344
September 29, 2009

biology
what is heterotrophic Hypothesis? please explain well that i can understand because i am doing a research paper on it and i have no clue what it means
September 28, 2009

Accounting
Please prepare and post your response to the following question no later than Wednesday of this week: A major network is launching a reality program called The Accountant. A group of recent accounting graduates will be competing for a spot in a national accounting firm. What ...
September 2, 2009

religion
Gnostic claim Jesus could not have been human because all humans are evil what would the christian response be
August 30, 2009

Ethics
Which is true: most tribes operate gambling ventures or most tribes do not?
August 16, 2009

business
In what ways are expository essays similar to business communications?
July 23, 2009

math
At what rate would a 120-pound person burn calories while bicycling at 12 mi/h?
July 3, 2009

math
Sonia harvested 34 bushels of beans per acre from 44 acres in May and 38 bushels of beans per acre from 41 acres in June How many bushels of beans did Sonia harvest?
June 28, 2009

math
Eduando owned 6/7 of a family business. he sold 1/5 of the business to his son. What portion of the business does he still own?
June 21, 2009

math
Write the following as a common fraction or mixed number. 5.679
June 21, 2009

math
Write the following as a common fraction or mixed number. Write your answer in lowest terms. 0.44
June 21, 2009

math
Rochelle purchased an appliance that cost $815.56 with interest included. She paid $250 as a down payment and agreed to pay the remainder in 18 monthly payments. What amount will she be paying per month?
June 21, 2009

math
Shella practiced 1-1/2 hours Monday, 3-3/4 hours Tuesday, and 2-1/2 hours Wednesday. What is the total number of hours that she practiced?
June 21, 2009

organic chemistry
I can't figure out the answer please help. 1. Which of the following would you expect to have the weakest C-X bond? A)CH3Cl B)CH3CH2Br C)CH3F D)CH3CH2I E)(CH3)2CHBr 2. Which of the following haloalkanes would not undergo the reaction below? R-X + CH3S^ ----> CH3SR + X...
June 18, 2009

french help please!
woah u guys seem like best friends
June 9, 2009

Chemistry
WHat is the bond identified as if two covantley bonded atoms are identical?
May 30, 2009

algebra
1. y=3x^2+x-2 2. find an equation that has -5/2 and 6 as solutions
May 15, 2009

CHEM
For the reaction of HNO3 is this the reaction? Is the water liquid? 2HNO3(s)> 2NO2(g)+H2O(l)+ 1/2O2(g)
April 30, 2009

Math
math
April 27, 2009

Math
i want help
April 27, 2009

Physics
Three solid cylinder rods roll down a hill with the same linear speed. Rod R1 has a 1inch diamter, Rod R2 has a 2inch diameter, and Rod R3 has a 3inch diameter. They all have the same masses. Rank in order the rotational energies of R!, R2, and R3. a. E1 > E2 > E3 b. E3...
April 22, 2009

Physics
Three solid cylinder rods roll down a hill with the same linear speed. Rod R1 has a 1inch diamter, Rod R2 has a 2inch diameter, and Rod R3 has a 3inch diameter. They all have the same masses. Rank in order the rotational energies of R!, R2, and R3. a. E1 > E2 > E3 b. E3...
April 22, 2009

PHYSICS
A hollow tube (I = MR2) rolls without slipping along the surface. The ratio of its translational kinetic energy to its rotational kinetic energy is a. 1 b. 2 c. 3 d. 1/2 e. 1/3 I say A becasue both add up to get the total kinetic energy.
April 22, 2009

Physics
Three solid cylinder rods roll down a hill with the same linear speed. Rod R1 has a 1inch diamter, Rod R2 has a 2inch diameter, and Rod R3 has a 3inch diameter. They all have the same masses. Rank in order the rotational energies of R!, R2, and R3. a. E1 > E2 > E3 b. E3...
April 22, 2009

Math
-8
April 21, 2009

Physics
A cylinder and a solid disc are released from rest from the top of a ramp.They roll down the hill without slipping. Which statement iscorrect? a. The cylinder reaches the bottom first b. The disc reaches the bottom first c. They both reach the bottom at the same time d. Could ...
April 21, 2009

law
Suppose the statute of limitations for a particular state is 3 years and the age of majority in that state is 21. If you have medical records for a 13-year-old girl, how long should you maintain them? A. 3 years C. Until she’s 21 B. 8 years D. Until she’s 24 B
April 20, 2009

law
Suppose the statute of limitations for a particular state is 3 years and the age of majority in that state is 21. If you have medical records for a 13-year-old girl, how long should you maintain them? A. 3 years C. Until she’s 21 B. 8 years D. Until she’s 24 B
April 20, 2009

health
Thanks Andrew & Ms. Sue
April 20, 2009

health
A woman is brought into an emergency room after a severe automobile accident. She’s unconscious and badly injured. Her husband arrives at the emergency room at the same time as she arrives in the ambulance. The doctor explains the wife’s condition to her husband and ...
April 20, 2009

health
According to the AMA, what is a key reason behind a physician’s duty of confidentiality to a patient? A. The U.S. Constitution requires a physician’s confidentiality. B. The patient will feel more confident in disclosing information to the physician. C. If a ...
April 18, 2009

Health
Thanks
April 18, 2009

Health
Who is the only person who can authenticate the information in a patient’s medical record? A. The attending physician B. The attending nurse C. The medical facility that’s caring for the patient D. The person who creates the data in the record C
April 18, 2009

math
Y varies directly as X. When Y is 10, X is 15. Find Y, when X is 32. a. Can not be determined b. When X is 32 then Y = 165 c. When X = 32 then Y is; 21 1/3 d. When X is 32 then Y = 5
April 16, 2009

Physcis
In the process of starting up the car plant, a turbine accelerates from rest at 0.49 rad/s^2 .How long does it take to reach its 4400 rpm operating speed? How many revolutions does it make during this time? I got 940 s for the first part, but for the second part Do i use the ...
April 16, 2009

math
Y2 = 289 the 2 is to the second power a. Y = 289 b. Y = 144.5 c. Y = 18 d. Y= -17 and +17
April 16, 2009

Physics
Two pieces of paper are on a DVD movie disk. Paper A is farther from the center of the disk than Paper "B". The DVD disk starts to play and then starts to spin. Which statement is true? a. Paper "A" experiences a greater tangential acceleration than Paper &...
April 15, 2009

Physics
Two pieces of paper are on a DVD movie disk. Paper A is farther from the center of the disk than Paper "B". The DVD disk starts to play and then starts to spin. Which statement is true? a. Paper "A" experiences a greater tangential acceleration than Paper &...
April 15, 2009

Calculus
A ball is dropped from a height of 10 feet and bounces. Each bounce is ¨ú of the height of the bounce before. Thus, after the ball hits the floor for the first time, the ball rises to a height of 10(¨ú ) = 7.5 feet, and after it hits the second floor for ...
April 15, 2009

Chem
Which chloride should exhibit the most covalent type of bond? WHY? A) NaCl B) KCl C) BaCl2 D) BeCl2 E) CaCl2
April 12, 2009

7th grade
what is the answer for 3 times a number plus 15 divided by 2
April 7, 2009

health
The function of the sinoatrial node is to A. keep the heart beating. B. filter lymph. C. prevent blood from backing up into the atrium. D. divide the right and left sides of the heart. The sinoatrial node is also known as the pacemaker of the heart because it sets the pace of ...
March 25, 2009

health
The function of the sinoatrial node is to A. keep the heart beating. B. filter lymph. C. prevent blood from backing up into the atrium. D. divide the right and left sides of the heart. The sinoatrial node is also known as the pacemaker of the heart because it sets the pace of ...
March 25, 2009

health
A 60-year-old patient who comes to the emergency room with shortness of breath is experiencing A. dysphagia. C. pleural effusion. B. inspiration. D. dyspnea i think d
March 25, 2009

health
thanks
March 25, 2009

health
Is cholelithiasis inflammation of the bile duct?
March 25, 2009

health
which term means "blood on the chest"? hemothorax aerothorax pneumothorax gastrothorax i think (hemothorax) not sure, it means blood in the pleural cavity
March 25, 2009

science
A ball is traveling at a constant velocity of 50 m/s and has been traveling for over 2 minutes. What is the ball’s acceleration
March 8, 2009

SAT Essay
Good website for developing your vocabulary is wikiwordy Provides SAT words and lots of example sentences to help understand how they are used in context. Hope that helps!
March 1, 2009

Math/Standard and scientific notation
Express each measure in standard form. (One more thing by the way you need this few prefixes) Tera= 10 to the 12th power Giga= 10 to the 9th power Mega= 10 to the 6th power Kilo= 10 to the 3rd power Pico= 10 to the -12th power Nano= 10 to the -9th power Micro= 10 to the -6th ...
February 25, 2009

Accounting
When reviewing a financial report, why should information be reliable, relevant, consistent, and comparable? In other words, why are these accounting characteristics important? What kinds of problems could be created if a financial report is not reliable, relevant, consistent...
February 18, 2009

density of Magnesium!
sorry yes they were in pm I corrected my units: m= 2* 24.30g/6.022*10^23 = 8.07*10^-23 v= l^2*h v=(3.2*10^-8cm)^2* 5.2*10^-8cm v=5.32*10^-23cm d=m/v d= 8.07*10^-23/5.32*10^-23 d= 1.52cm > it's still 1.52 where as the correct answer is suppose to be 1.75g/cm^3. Is my ...
February 6, 2009

density of Magnesium!
Magnesium crstallizes in the hcp arrangment. The dimensions of the unit cell are height 520om, length on an edge, 320. Calculate the density of Mg (s) and compare it with the measured value of 1.738 g/cm^3 this is what i did : m= 2* 24.30g/6.022*10^23 = 8.07*10^-23 v= l^2*h v...
February 6, 2009

Calculus
1.Evaluate: (1/(x*sqrt(x^2-4)) I know the answer is -1/2*arctan(2/sqrt(x^2-4)), but I am having trouble getting to this answer on my own. I know the formula to solve it is 1/a*arctan(x/a) and that a=2, but that's all I know. 2.Find the limit of x^((ln 2)/(1+ln(x))) as x ...
February 6, 2009

Enzyme Kinetics-Km values
Hi guys, I don't quite understand why a lower Km value means more effective binding? Sincerely, Sandy
January 31, 2009

math
what is 14% of 23,032.00?
January 21, 2009

3rd grade
would you use 1000 as a benchmark to estimate the number of shoes in your classroom?
January 5, 2009

AP Stats
the answer is 93% but i have no idea how to get there
January 2, 2009

Math
Circumference of a circle. If the circumference of a circle is 1.3 X 10-12. (The -12 is the exponnet of 10.) Then what is the radius?
December 10, 2008

Genetics
Thanks bob! That really helped! Could you be so kind as to help me out with how to approach this one as well. In a mating of Hfr pro+ trp+ ala+ tet-s x F- pro- trp- ala- gly+ tet-r, cells are interrupted after several minutes and plated on the media containing various amino ...
December 7, 2008

Genetics
Hi, Is it possible to have a recombination frequency greater than 50%? the answer would be yes as they would assort indepnedyt? correct? thanks
December 7, 2008

psy
we must be all talking about the same school, class and yeah the teacher still there too. I have a 3.8 GPA, but so far in this class I barely maintain a C. This is ihe worst text book I ever read, dry, words so "big" I got to look yo every third word or so to make ...
October 30, 2008

Math age problem
Max has a brother who is four years more than twice his age. If their combined ages equal 37, how old is Max?
October 29, 2008

Math age problem
Max has a brother who is four years more than twice his age. If their combined ages equal 37, how old is Max?
October 29, 2008

12th grade
I need help with factoring....Please!! How would you answer y(y-9)+4(y-9)
October 13, 2008

Math
Determine the volume of a triangular prism with sides of the triangular base measuring 10cm, 14 cm, and 21 cm and having height 30 cm.
October 13, 2008

vocab, again! sorry!
Great website is wikiwordy They provide example sentences for a bunch of words, I use the site for vocab hw and essays, and find it pretty helpful. I did a quick search for "decorum" and there are several sentences to look at. Hope it helps.
October 6, 2008

biology
Which one of the following types of molecules serves to interact with the world around us?
September 25, 2008

science
Discuss an environmental problem that you feel is significant in your town or city. What are some causes? Are any of these causes related to human values and environmental ethics? Explain
August 26, 2008

secince
Reflect on your own worldview and compare it with the worldviews presented in the text.
August 26, 2008

sicence
Discuss an environmental problem that you feel is significant in your town or city. What are some causes? Are any of these causes related to human values and environmental ethics? Explain
August 24, 2008

crminal justice
The courtroom and trial: Identify a courtroom in your area or state. Identify those who work in a courtroom and describe their roles
August 23, 2008

RESEARCH WRITING
need a thesis statement on the NBA
August 17, 2008

criminal justice
describing the purpose of jails in society. Is the current system effective?
August 7, 2008

criminal justoce system
analyzing the integral role sentencing plays in the criminal justice process and its effects on society.
August 3, 2008

research writing
In what ways are full-sentence outlines more beneficial than topic outlines? If someone asked, “Wouldn’t it be simpler just to write your paper than to create a full-sentence outline?” how would you answer? Explain your response. What steps will you take to turn...
July 29, 2008

Research writing
Can i get a Report about sports include introduction conclusion and summary?
July 27, 2008

criminal justice
Responsibilities of State and Federal Courts:response describing each court level and its responsibilities. Then, describe the two main differences you found between the state and federal court systems.
July 24, 2008

research writing
Identify examples of bias fallacies and specific rhetorical devices in the speech How did the speaker address arguments and counterarguments Were the speakers arguments effective Explain?
July 23, 2008

criminal justice
Many judges in the criminal court system are not only overwoked, but also must contend with the worst of society. How does the role and responsibility of a juge differ in a real life courtroom as opposed to the mystique portrayed in the movies and on television
July 21, 2008

CRIMINAL JUSTICE SYSTEM
Many judges in the criminal court system are not only overworked, but also must contend with the worst of society. How does the role and responsibility of a judge differ in a real-life courtroom as opposed to the mystique portrayed in the movies or on television?
July 20, 2008

criminal justice
Terrorism and Cyber Crime explaining the impact terrorism and cyber crimes have on interpreting the Fourth Amendment. Use a current event as a reference to help support your explanation. Do you feel the response or act was justified? Why or why not?
July 15, 2008

research writing
The only reason it's noteworthy is because it's Jamaal Tinsley
July 12, 2008

inside criminal law
Identify one justification and excuse defense.
July 5, 2008

writing
two theories on the causation of crime
June 29, 2008

criminal justice
Identify examples of bias fallacies and specific rhetorical devices in the speech of citizen charles foster kane
June 29, 2008

foundation of ht ecriminal justice system
the crime control model and the due process model. Which aspect of the system do you believe is more effective
June 26, 2008

environ. probl-please revise
houton, tx
June 13, 2008

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