Questions Asked on
March 9, 2007

Physics
A thin rod, of length L and negligible mass, that can pivot about one end to rotate in a vertical circle. A heavy ball of mass m is attached to the other end. The rod is pulled aside through an angle and released. What is the speed of the ball at the
asked by Technoboi11 
prealgebra
write an inequality for the sentence. The total t is greater than five. Well your answer is going to be T and the sign for greater than is simply >. So the answer would be T > 5 ok again my name is above. i was just wondering what prealgebra was? i mean i
asked by Joe 
Math help??
Find the missing length of the right triangle if a = 7 and b = 24. Read the followng and see if it hepls to solve this. If you still don't get it repost your answer. http://en.wikipedia.org/wiki/Pythagorean_theorem a sqaured+b squared=c squared 7
asked by carol 
calculus
find dy/dx y=ln (secx + tanx) Let u= secx + tan x dy/dx= 1/u * du/dx now, put the derivative of d secx/dx + dtanx/dx in. You may have some challenging algebra to simplify it. Use the chain rule. Let y(u) = ln u u(x) = sec x + tan x dy/dx = dy/du*du/dx
asked by amy 
English
I'm writing a term paper for history, and I wondering which is correct: The 1920s was a period of... The 1920s were a period of... The first one sounds correct to me, but I want to be sure that the subject and verb agreed. According to all the information
asked by Chris 
algebra,math,help
Use Property 2 to simplify each of the following radical expressions. sqrt (10)/ sqrt(49) My answer: sqrt (10) / (7) THis next one i need help: Use the properties for radicals to simplify each of the following expressions. Assume that all variables
asked by jas20 
Physics
ELECTRIC FIELDS AND EQUIPOTENTIAL SURFACES 1.what condition must exist to have a region of nearly uniform electric fields 2.where are regions of strongest and weakest electric fields located Nearly always, there are flat equipotential surfaces. There are
asked by Nicole 
Econ MC
Externalities cause markets to a. fail to allocate resources efficiently. b. cause price to be different than the equilibrium price. c. benefit producers at the expense of consumers. d. cause markets to operate more equitably. I think the answer is a)?? I
asked by Anonymous 
chemistry
NaCN + H2O = HCN + NaOH Is this equation balanced ok? Yes, it is balanced. thanks very much
asked by Hol 
Identifying Fallacies
Give example of fallacy from newspaper editorial and another one from an opinion magazine. We do not do your homework for you, but here is a great site for explaining fallacies. http://www.nizkor.org/features/fallacies/
asked by Sharon 
Sequence
Find the common difference and a formula formula for the nth term of the arithmetic sequence; 6, 2, 2, 6, 10,...a sub n = a)64n b)62n c)102n d)104n I think it is c but want to check. Ao is 10, then each term subtracts 4n from it....n=1, ... well if
asked by raven31792 
Physics
Zero, a hypothetical planet, has a mass of 1.0 1023 kg, a radius of 3.0 106 m, and no atmosphere. A 10 kg space probe is to be launched vertically from its surface. (a) If the probe is launched with an initial kinetic energy of 5.0 107 J, what will be its
asked by Technoboi11 
English
Hello ^^ I need your help. I hope you can help me. Can someone please explain me these quotes and tell me what you think about them: A life without adventure is likely to be unsatisfying, but a life in which adventure is allowed to take whatever form it
asked by Hope 
donating to charity
What are the pros and cons of donating to charity? my opinion i could be wrong but the pros is helping others in need. By doing so you provide a good deed. Also put yourself in their shoes. As for the cons that sometimes individuals who aren't the needy
asked by Anonymous 
Algebra 2
I am trying to factor a 4th degree polynomial that does not have any rational roots. I need to somehow get it factored into two quadratics. Anyone know of a method to use. 3x^4  8x^3  5x^2 + 16x  5 Two of the irrational roots are 1.135.. and 0.382.. but
asked by Brenda 
Physics
Zero, a hypothetical planet, has a mass of 1.0x10^23 kg, a radius of 3.0x10^6 m, and no atmosphere. A 10 kg space probe is to be launched vertically from its surface. (a) If the probe is launched with an initial kinetic energy of 5.0x10^7 J, what will be
asked by Technoboi11 
social studies Hinduism
Looking for information on hinduism: 1) Considering that Hiduism lacks a united belief system, what makes up the hindu religion? 2)What are the cultural and societal influences that have made hinduism vital to the region in which it originated? 3) Explain
asked by sue 
Social Studies
HELP!! I am writing an essay about comparing and contrasting slaves and indentured servants, and I need help coming up with a conclusion paragraph!! Anyone have ANY IDEAS?!?!?!?!? Your concluding paragraph should not introduce any new information. It
asked by no name please 
Chemistry please check!
A 0.21g sample of sulfuric acid is dissolved completely in sufficient water to make 0.25 litre of final solution. Calculate the hydrogen ion concentration in mol11 in this solution and show successive steps in the calculation: If 0.21g in 0.25l then 0.84g
asked by Hol 
Animals
Please unscramble ubrocai caribou
asked by Anonymous 
psychologgy
I am having trouble with this assignment. I don't want answers to all of these but if you could help me with one so i get an idea of the assignment. no chart needed just an example. pleeze. thanks Using a simple chart for display, create mnemonics for the
asked by key 
criminal justice
How would advances in criminal justice technology would improve resource deployment. More specifically, in addition to giving an overview and several examples of advancing technologies in the criminal justice field, with the main focus on information and
asked by Jo 
chemistry
I have to draw Lewis structures for hydrogen cyanide and cyanogen with nitrogen valency of three. Would I still need 2 dots after the N in hydrogen cyanide or would this represent nitrogen with a valency of 5? Yes. THose two "dots" are unshared electrons.
asked by Hol 
calculus
relative extrema x^3 + 1/2x^2  2x + 5 Ok I have 3x^2 + x  2 = 0 Am I on the right track? I think i know why I kept on asking for help with these pribelms. I forgot the step of factoring. Please check... 3x^2 + x  2 = 0 (3x2)(x+1)=0 x=2/3, x=1 Correct.
asked by dee 
Biology 101
What are the factors that cause cells to reproduce in mitosis and meiosis depends on the cells. there's a huge difference between a livwr cell, nerve cell, and a bacterial cell. probably your instructor is looking for answers like: growth, food supply
asked by Amy 
Change Analysis
Situation The regular night shift personnel at the warehouse were loading a truck backed up to the loading dock. A large convex mirror was placed high in the warehouse doorway to allow handcart personnel to see traffic approaching outside on the dock while
asked by Mary 
structural formulae
REACTION 1 IS A CARBON COMPOUND CONTAINING AN ALCOHOL FUNCTION GROUP + REACTION 2 IS A CARBON COMPOUND CONTAINING A CARBOXYLIC GROUP. IM TRYING TO UNDERSTAND THE PRODUCT FORMULAE. CAN YOU TELL ME HOW THESE TWO FUNCTION GROUPS REACT, AND THE RELEVANCY OF CH
asked by honey 
physical science
i have 25 examination quesions i need answered. can you help me? We can help you with some of them if you post them individually and show your own work or thoughts. We don't do exams for you here.
asked by cynthia 
Calculus
relative extrema x^42x^2+5 so far I know how to find the derivative which is 4x^32x now I am stuck... Please help Huh? 4x^32x=0 2x(2x^21)=0 and what are the roots? I will give you a hint: one is x=0 The other two are in the second parenthesis. Is it
asked by dee 
chemistry
I am trying to work out the abbreviated structure formula of the products of the complete hydrolysis of tocainde together with any new functional groups formed. I am somewhat stuck and have got only as far as identifying the functional groups in tocaine.
asked by layla 
history
Why were hobos called what they were? After the stock market crashed what did people do with their stock? hobo 1889, Western Amer.Eng., of unknown origin, perhaps related to early 19c. Eng. dial. hawbuck "lout, clumsy fellow, country bumpkin." Or from ho,
asked by ben 
Math
Here's a chalenging one that i can't do at all. A deck of cards has 6 yellow, 6 green, and 5 black cards. You pick four cards from the deck. Cards are not returned after they are picked. What's the probability of picking first not green, second not green,
asked by Jason 
calculus
Find the lenght of the sides of an isosceles triangle with a given perimeter if its area is to be as great as possible. let k be the the length of the two iso sides, so the other side is P2k. Call that the base. Using Heron's formula:
asked by amy07 
factoring completly
can anyone help me with these: 3x2 + 17x + 10 5y8  125 a2  2ab  15b2 4c2  12c + 9 5 y^8  125 = 5(y^8  25) y^8  25 can be written (y^4  5)(y^4 + 5) For the others, you need to try a few factors until you find a pair that works. For example, a^2 
asked by mike 
Math (limits)
Find the limit or state that the limit does not exist for 3sub n +2 / n Choices a)=0 b)does not exist c)=3 d)=2 I believe the answer is either 3 or 2 but I can't decide which. what is 3 sub n? sub n means subscript
asked by Kellie 
Science Check
1)Two balls having the same mass of 1 kg roll toward each other, each moving at the same speed of 1 m/s. What is the combinded momentum? Would it be 0 kg m/s 2)A 30 kg girl and a 25kg boy face each other on friction free roller blades. The girl pushes the
asked by Abby 
genetics (again)
i asked this question...when subcloning a gene and inserting it into a vector you normally would use xgal to locate transformants if xgal is not available what are the alternatives...and thankyou for the alternatives but i was wondering if there was any
asked by steph 
Math (triangles)
Given b=48, A=36 degrees find the remaining parts of the right triangle. B= a)144 degrees b)154 degrees c)54 degrees d)64 degrees We know that one angle equals 36 and since it is a right triangle another must equal 90. The sum of the angles of a triangle
asked by melinda 
Math
Why is this problem 37,1% correct. Sam scored 45 points againd Memphis in an NBA game. He made 13 of 37 shots what was his shooting percentage? Multiple choice test. 37% 37.4% 37.1% 37.3%
asked by Amber 
chemistry
A drop of oil (volume 0.05cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to cover an area of "40m2". Assume that the oil film has a uniform thickness equal to the diameter of a oil molecule. Calculate the
asked by angel 
math,help
What is missing of the binominal in the following: (radical 3 minus 2) ( ?) = 1
asked by jas20 
Research Paper
can someone tell me what the MLA style is? my textbook is requiring it for my paper but is not explaining it? Here are some MLA websites; the first one is the most thorough and the best: (Broken Link Removed)
asked by Jonathan 
Re: Physics/Math
Posted by Technoboi11 on Wednesday, March 7, 2007 at 1:09am. Zero, a hypothetical planet, has a mass of 1.0x10^23 kg, a radius of 3.0x10^6 m, and no atmosphere. A 10 kg space probe is to be launched vertically from its surface. (a) If the probe is launched
asked by TechnoBoi11 
Math (triangles)
Given b=48, A=36 degrees find the remaining parts of the right triangle. a= a)51 b)35 c)66 d)29 and c= a)35 b)26 c)82 d)59 This one I'm lost on! a = b tan A = 34.8 (round it off to 35) c = b/cos A = 59.3 (round it off to 59)
asked by melinda 
Trigonometry Paper Urgent!!!
I am writing a paper on the 8 trigonometric identites but can't find any information on them. Please does anyone know of any websites that would have things like their history, development, applications in ancient times, origins, etc. Please help.
asked by kate 316 
math,help
What are two consecutive integers whose square roots are also consecutives integers? 0 and 1 Thank you for helping me Rom how do you know that its 0 and 1....
asked by jas20 
math
the length of a rectangle is 7/8 yards and its width is 32/49 yards what is its area in square yards? 7/8 times 32/49 = 224/392 now simplify (the lowest common denominator is 56) so 224/392 = 4/7 So there is 4/7 of a square yard in the rectangle Thank you
asked by carmen 
SS Statistics
Hello. Does anyone have any statistic graphs of the Chinese and or Mexican Immigrants? Thx, Dallas Check the graphs at the bottom of the article. http://www.uagrad.org/Alumnus/im/
asked by Dallas 
Williamsburg
Kobe Bryant scored 62 points against the Dallas Mavericks in an NBA game. He made 17 of 29 shots. What is his shooting percentage? The answer should be 17%. How do you get that? I have calculated the answer to be 58.6%. the score was 17 out of 29, so 17 is
asked by Amber 
uhoif[wefj ejkhe
what is frustration? http://www.answers.com/frustration
asked by harsha 
Com 215
Inclusive Language Quoting from Biased Material. Help with this sentence. Back in the 1400s, the laws govening the people were quite specific. "All men shall tithe 10% to the church and pay taxes every six months. All men can attend school until they ae 16
asked by Nesie 
maths
x^2+x=12 Since you do not ask a specific question, I assume that you want to find the factors. x^2 + x  12 = 0 From the above, for the center term, you are looking for two values whose product is 12 and whose sum is +1. (x + 4)(x  3) = 0 I hope this
asked by Helen