Questions Asked on
November 6, 2008

physics
Three identical thin rods, each of length L and mass m, are welded perpendicular to one another as shown below. The assembly is rotated about an axis that passes through the end of one rod and is parallel to another. Determine the moment of inertia of this
asked by sara 
Math
Expressed to the correct number of significant figures, the sum of two masses is 445.2 grams. WHich two masses produce this answer? 1) 210.10 g+235.100g 2)210.100 g + 235.10 g 3) 210.1 g + 235.1 g 4) 210.10 g+ 235.10 g I think the answer is 2 but I don't
asked by Joanne 
Physics
How many times will the incident beam shown in Figure P25.3 (x = 1.90 m, y = 1.30 m) be reflected by each of the parallel mirrors? mirror on the right
asked by Nancy 
PHYSICS PLEASEEE
The distinction between mass and weight was discovered after Jean Richer transported pendulum clocks from Paris to French Guiana in 1671. He found that they ran slower there quite systematically. The effect was reversed when the clocks returned to Paris.
asked by henry 
trig
Verify that each equation is an identity. 16. 1+tanx/sinx+cosx =secx ok i have a clue on how to do it. i multiplyed the denominator by sinxcosx and i also did the top but when i do i get this weird fraction with all these cos and sin and then i get
asked by gaby 
intermediate algebra
A projectile is launched directly upward from the top of a 112  foot building with an initial velocity (speed) of 96 feet per second. This translates to the h(t) = 16t^2 + 96t + 112 where h(t) is the height of the projectile in feet and t is the time in
asked by jennifer 
reading
where do I find goodbye to the moon story ?
asked by landon 
Calculus
find the xcoordinate of the point P on the parabola y=1x^2 for 0
asked by Ivan 
Hs Math
on the moon, the acceleration due to gravity is 1.6m/sec^2 a. if a rock is dropped into a crevasse, how fast will it be going just before it hits bottom 30sec later? b. how far below the point of release is the bottom of the crevasse? c. if instead of
asked by ET 
chemistry
how can i compare the dual nature of light how can i describe the phenomena that can be explained only by the particle model of light. how can i empoly the quantum theory to assess the amount of energy that matter gains and loses how did Einstein utilize
asked by dina 
physics
A warwolf or trebuchet is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling large vegetables and pianos as a sport. A simple trebuchet is shown in the figure. Model it as a stiff rod of negligible mass, 3.05 m
asked by tom 
math
A midwestern music competition awarded 38 ribbons. The number of blue ribbons awarded was 3 less than the number of white ribbons. The number of red ribbons was 2 more than the number of white ribbons. How many of each kind of ribbon was awarded?
asked by Bryan 
phsyics
an 8g bullet is shot into a 4kg block at rest on a frictionless horizontal surface. the bullet remains lodged in the block. the block movies into a spring and compresses it by 3cm. the force constant of the spring is 1500N/m. the initial speed of the
asked by joyce 
Math
it says the knights banquet hall uses the equation 25nc+1250=0 determine the cost for a hall rental the legions banguet hall usues the equation 30n+995c=0 to determine the cost for thier hall rental express each equation in slope yintercept form c=mn+b
asked by Laura 
Math
The average life expectancy for American men born in 1900 was 55 years. Life expectancy has increased by about .2 year for each birth year after 1900. If this trend continues, for which birth year will the average life expectancy be 85 years? how do u
asked by i love polka 
acounting
a) the cash payments journal used in this problem has only 3 special amount columns. Under what circumstances would you recommend that additional special amount columts to be added to a cash payments journal? b) When insurance premiums are paid, should the
asked by jerson 
chemistry
Laws passed in some states define a drunk driver as one who drives with a blood alcohol level of 0.08% by mass or higher. the level of alocohol can be determinded byt titrating blood plasma with pottasium dichromate according to the unbalanced redox
asked by Komal 
12th grade calculus
a marathoner ran the 26.2mi New York City marathon in 2.2h. show that at least twice, the marthoner was running at exactly 11 mph
asked by ee 
1 more phyiscs for today
sorry for asking for help agen. a baseball catcher puts on an exhibition by catching a .150kg ball dropped from a helicopter at a height of 100m above the catcher. if the catcher "gives with the ball for a distance of .75m while catching it, what average
asked by joyce 
English
1. Write down the name of the building with a question mark. 2.Write down the name of the building marked with a question mark. 3. Write down the name of the building having a question mark. 4. Write down the name of the building which has a question mark.
asked by John 
ap biology
10 . Which one of the following statements is NOT true about the resting potential? (28.3) [Hint] A. The neuron's plasma membrane is much more permeable to potassium than to sodium. B. The concentration of sodium is much higher inside the cell than
asked by carol 
Calculas HS
a trucker handed in a ticket at the toll booth showing that in 2hours she had covered 159 mi on a toll road with speed limit 65mph. the trucker was cited for speeding. why?
asked by dt 
physics
Two metal disks are taped to a meterstick. The mass of the meterstick is 460 grams. Disk 1 has a mass of 300 grams and is located at the 28 cm mark. Disk 2 has a mass of 500 grams and is located at the 64 cm mark. At what posi tion along the meterstick
asked by Sandhya 
social studies
Hi i need help with the following 4 questions please 1. Jacksonian democrats favored the following except one a. rotation in office b. manhood suffrage c. the caucus system of nomination d. rewarding the politically faithful 2. The foreign policy of John Q
asked by bill 
geometry
A farmer plants pine trees. If he plants 5 rows of 4 trees How is it possible for him to have only planted 10 trees ? Draw a diagram
asked by Jessica 
statistics
The scores of students on the ACT college entrance examination in a recent year had a normal distribution with a mean of 18.6 and a standard deviation of 5.9. A simple random sample of 50 students who took the exam is selected for study: A) What is the
asked by Marshall 
bhs
what is the formula of the ion formed when potassium achieves noble gas electron configuration?
asked by angie 
Math
Name a fraction between 0 and 1/10 whose numerator is NOT 1.
asked by Kathy HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
English (CA)
my teacher says we should replace the verb to be (is, are,was,were, has been) and there are a couple places in my essay where i cant figure out hiw to change them...any suggestions would be greatly appreciated  Another instance of symbolism in “The Most
asked by Kate 
7th grade pre algebra
We need assistance solving 3 + 2(k+1) = 6 + 3k I know the 2(k+1) has to become 2k + 2 then we have 3 + 2k + 2 = 6 + 3k then we can subtract 3k from both sides to get 3 +2k + 2  3K = 6 But can I combine the 3+2 on the left and the 2k  3k to get 1k?
asked by William 
math
Ms. Davis asked her students to draw a picture describing their hobby, She asked them to use only 3 colors. Patrick has a box of crayons containing the colors red, blue, yellow, green, orange and purple. How many different ways can Patrick use his crayons
asked by chase 
dt
what is a mass structure?
asked by amy 
geometry
a lader is leaning against a jouse and is forming a 60 degree angle with the ground. if the top of the ladder is 24 feet off of the gound, how long is the ladder? leave your answer in exact form.
asked by hannah 
ap bio
16 .Action potentials are generated along a neuron because __________. A.of cytoplasmic streaming within the neuron B.depolarization of the membrane at one point causes an increase of permeability to sodium at the next point C.they are pulled along by
asked by carol 
physics
a box whose mass is 0.3 kg is pushed against a spring(k=40n/m) on a horizontal surface and the spring is compressed 0.12m. The box is released and travels for 1.4 meters before coming to a stop. What is the coefficient of friction between the floor and the
asked by jeff 
math
estimate quotient and divide (how do you estimate the quotient? 552 divided by 71,520 I don't understand the steps.
asked by Jake 
exam questions
hi I'm looking for the past exam questions. Could you help me? Where I can find? thanks.
asked by asia 
ap bio
15. The threshold potential is of great significance in the physiology of neurons because if the threshold potential is not reached, __________. A.the neuron cannot regain its resting potential B.the action potential will be "inversed," with a flux of
asked by carol 
social studies
what were two effects of commodore perry's visits to japan?
asked by Ranell 
Calculas HS
show that the solution has exactly one solution in the interval x+ln(x+1)=0, 0
asked by elley 
Physics
I'm having troubles with a few questions. A tennis ball is thrown vertically upwards. At the top of it's flight, it has: A. a zero speed and acceleration B. a zero speed and constant acceleration C. maximum speed and acceleration D. maximum speed but zero
asked by JC 
social studies
How did the slave trade affect the eastern shore? Also where can I find information about the Slave Trade on Maryland's Eastern shore on its economics and culture? Help is Appreciated! Thankyou
asked by Johnny 
5th Grade student teacher: Needs ur help....
What fun activity could I use to to teach 5th grade students about the Constitution?
asked by Samantha 
intermediate algebra
You can travel 40 miles on a motorcycle in the same time that it takes to travel 15 miles on a bicycle. If your motorcycle's rate is 20 miles per hour faster than your bicycle's rate, find the speed of the motorcycle and bicycle. motorcycle = 32mph bicycle
asked by jennifer 
Albegra Word Problem
In 1993, the life expectancy of males in a certain country was 62.1 years. In 1997, it was 65.8 years. Let E represent the life expectancy in year t and let t represent the number of years since 1993. The linear function E(t) that fits the data is E(t)=
asked by PJ 
social studies
identify matthew perry
asked by Ranell 
social studies
how did the u.s acquire the territory of alaska?
asked by Ranell 
eng
meritorious used in a sentence. please help me make one up.
asked by melissa 
science
second grader. Please help me with examples of things I can investigate using the scientific method for my homework project. thank you.
asked by katrina 
Science riddle
You may enter, but you may not come in. You may look through my windows and see nothing outside. I have space, but no room. I have keys, but open no lock.What am I?
asked by Anonymous 
high school calculas
Find the (a) the local extrema, (b) the intervals on which the function is increasing, (c) the interval on which the function is decreasing h(x)=2/x
asked by pipi 
6th grade
what are the 6 major ecosystem?
asked by riah 
calculus
find the derivative using quotient rule F(x) = (x  7 x sqrt(x)) / sqrt(x)
asked by ken 
intermediate algebra
Pat can design a website in 20 hours. His friend can design the same site in 30 hours. How long will it take to design the website working together? I got 12 hrs. Is this correct?
asked by jennifer 
social studies
what is swedens nickname and why?
asked by kayla 
biology
Which end of a phospholipid is attracted to water?
asked by alexia 
math
Antonio said, "To solve 506288, I can think of 5 hundreds as 50 tens." How might this help him subtract?
asked by Anonymous 
intermediate algebra
Write the equation of the line containing (3,4) and perpendicular to y = 2/3x + 2. Write your answer in slopeintercept form. Not sure how to do this one. please help.
asked by jennifer 
MATH
How do you write an equation in standard form? Ex.How would you write this in standard form? y+1=x+2
asked by Samantha 
physics
a block is held 1.3m above a spring and is dropped.The spring compresses 6cm before sending the ball into the air. How fast is the ball going when it hits the spring? What is the spring constant? How high in the air does the ball go after hitting the
asked by jeff 
math
Find the first and third quartiles, Q1 and Q3, of the following set of numbers. 14, 4, 13, 18, 8, 15, 8, 3, 11, 8
asked by david 
social studies
identify teaty of kanagawa
asked by Ranell 
social studies
identify william seward
asked by Ranell 
Math
Solve the following 2w^3 4c^3t^2 _____  ________ 9c^3d^3 3b^2d^2
asked by Nadine 
mathfactoring
how do you factor this 8x^3+27
asked by hailey 
Math
Name 5 fractions between 0 and 1/4.
asked by KathyHELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
Math help, please
A corner lot that originally was square lost 185 m of area when one of the adjacent streets was widened by 3 m and the other was widened by 5 m. Find the new dimensions of the lot.
asked by Tina M. 
Algebra
I have just one math problem that I need a little help with. Please give me the answer, and walk me through it, too, to help me understand it. Thanks! The price of a ring is decreased by 40% and the resulting price is increased by 50%. The final price is
asked by Celina 
Const convention
Why did Rhode Island not participate in the Constitutional Convention?
asked by Andrea 
math
The scientists Verhulst (1828) where is the natural growth rate of the population when resources are limited and is a positive constant called carrying capacity of the environment. (a) Using sign analysis, find all constant solution and discuss the general
asked by josh 
calculus
I'm studying for a quiz on infinite series and convergence/divergence tests. I keep getting confused between the variables "k" and "n". What is the difference between the two?
asked by Corianne 
Business
You are assigned the duty of ensuring the availability of 100,000 yen for the payment that is scheduled for next month. Considering that, your company possesses only U.S. dollars, identify the spot and forward exchange rates. What are the factors that
asked by E 
history
How were the various countries of the world affected economically by WWII? Who came out ahead? Which countries suffered monetarily? Who lost their empires? Who lost the most in human capital?
asked by Candy 
12th Calculus
f(x)= x, 0
asked by elley 
math
The scientists Verhulst (1828) and Peal (1930) proposed the following growth model for a population living in an environment with limited resources (e.g. space, food, sunlight, etc): = , where is the natural growth rate of the population when resources are
asked by josh 
intermediate algebra
A right triangle has two legs and a hypotenuse. One leg of the triangle is 3 feet longer than the other leg. The hypotenuse is 15 feet. Find the length of each leg. I got 12 feet and the other leg is 9 feet Is this correct?
asked by jennifer 
busniess
Do tariffs encourage Americans to buy US products?
asked by shanita 
Astronomy
so i know that theres something Astronomically wrong with this quote but cannot figure out exactly what, would appreciate some help!!! "There's a full moon rising just about midnight, theres a high tide comin' 'round just about dawn" PLEASE, PLEASE,
asked by Mike 
English
What is preintervention and postintervention month?
asked by English 
general
Some states have high school starting at 9th grade while some start only in 10th. so when are the kids ready for AP classes? is this school dependent?
asked by andy 
chemistry
What is the electron configuration for Be 2+ ions? 1) 1 3) 21 2)2 4) 22 I also need an explanation for the correct and incorrect answers because I am confused by this problem.
asked by Roger 
Psy class
The text states that the most significant contribution positive psychology makes to the scientific study of wellbeing is the assessment of specific strengths. The text summarizes positive psychology as being aware that humans are both creatures and
asked by LaTonia 
sociol studies
plse help me 1. How African Americans were used by the U.s army, and french army (world war 1) 2. (ww1) countries in the allied powers and centeral powers? 3.goals of the panama canal? plse help me and thx you so very much
asked by Amy 
social studies
i need help on a current event
asked by jeannette 
vocab/english
i need a sentence using bombastic with context clues please.
asked by melissa 
math
Describe an application for the use of ratios or proportions that is not mentioned in your text, or describe how an application problem in the text could be useful in your daily life.
asked by scooby91320002 
6th grade
I need help on making a rough draft for a essay on cinderella. Comparing and contrasting two stories.
asked by Emily 
6th grade grammar
please see if these are correct THANKS Balloon races have become popular. Several airport's are supporting this race. An area is reserved for spectators. One spectator's son is in the race. The occasion is a photographer's delight. Will all the passengers
asked by pam 
math
[(2+h)^24]/h find the limit how do i do this?
asked by lauren 
Math
How would you get a alone on one side in this equation? r = ab over a+b
asked by Juline 
english language
what are articles and how are they used in the english language. 2)form 3 simple,compound and complex sentences
asked by jamis 
science
why are pencils yellow i have to come up with a tall tell
asked by lucinda 
English
A: Where are you from? B: I'm from a school. A: Where do you come from? C: I come from a company. (Are the expressions in the short dialogue all correct? What about B? Can B be an answer to the question?)
asked by John 
10th grade honors algebra
I can't figure out how to simplify this: 3x/2 + 3  x
asked by Douglas 
Physics
Sorry for posting so many, but I just need to make sure I'm on the right track. Just need someone to check my working and answers. A rocket has a mass 3000kg. The fuel used in the rocket has an additonal mass of 500kg. At the launch, the rocket accelerates
asked by JC 
math
60% of 25
asked by amari 
Attention : H Masri
re your post from late last night http://www.jiskha.com/display.cgi?id=1225941973
asked by Reiny 
algebra
srry if i am asking to many questions today this is my last thing plse help me how do you do problems like this find the slop and y intercept of the equation 3 y=x5/4 5/4 is a fraction how do you do problems like that plse expalin and show me step by step
asked by Amy 
Eth 125
Identify leaders of the Civil Rights and Black Power movements and their contributions to their respective causes. How did these social pioneers forge the way for this important ratification? What legislation was relevant during these critical times
asked by LILSISTER 
8th grade
when was last electioin for california council officials
asked by mr montanez 
Algebra
Could someone please help me figure out this question. If I paid $76.08 for something that was 40% off, what was the regular price? I got $127.98 but when I check my answer I am off by 2 cents. What am I doing wrong?
asked by I have one question 
Math
Invoice that list the date of the payment and the cash discount is called? terms?
asked by Debbie 
history
who can give me more info about the ancient messopotamian's government housing program for my shool essay?
asked by Yoyo 
Math
round the number 43,678.426785 to the nearest ten thousands? 40,000 is this correct
asked by Debbie 
Astronomy
Explain the nature of the seasons of mars and how they are like earths seasons.
asked by Mike 
ETH 125
According to current (within the past 2 years) research and news reports, what are some of changes the United States has made to policies concerning the treatment of Muslims and Arabic members of society?
asked by Johnny Mac 
teaching
What are organizing procedures and resources in a classroom?
asked by sally 
Fundamentals of programming
Design a program that models the worm’s behavior in the following scenario:
asked by Anonymous 
biology
what the cell theory applie to
asked by brandon 
Math
Can you please help me solve these problemss: 1. _____mL= 1 dL 2. _____dg= 1 dag 3. _____cL= 1 hL 4. _____cg= 1 dag 5.______daL= 1 kL 6. _____hm= 1 km
asked by Mondrea 
Spanish
can't you do actual revision ; instead of just words. it would make it a whole lot easier, because what if we didn't need to revise on those particular words and needed RESEARCH?
asked by Grace 
SOCIALSTUDIES
IF U WERE AN INDIAN IN THE OLD DAYS AND U RAN OUT OF SUPPLIES WHAT WOULD U DO?
asked by ALYSSA NOV.6 
Human Resource
Why would a company's strategic plans/goals and vision affect what kind of incentive plan (financial or nonfinancial incentives) it should be using to motivate employees?
asked by Angie 
math
amusement park purchased equipment from a manufactures for a list price of 42,000 minus trade discounts of 30//20/15. Calulate the amount of the trade discount on the purchase. Help so lost
asked by Debbie 
Linear Algebra
Give example of two nonzero matrices A and B such that A^2=0, B^2=0 but AxB and BxA do not equal zero.
asked by Amanda 
Anatomy and Physiology
What is the structure of muscle that is a connective tissue surrounding a fascicle?
asked by Tara 
college Linear Algebra
Give example of two nonzero matrices A and B such that A^2=0, B^2=0 but AxB and BxA do not equal zero.
asked by Amanda 
science
What are its properties? Write two properties for each object. block,paper clip and book water, milk and orange juice
asked by Eric 
math
Factor the following completely. x^212x+20
asked by kk 
math
what was africans wearing back then.
asked by shatyra owens 
math
If a $235 monitor is to be sold at 30% off, how much do you have to pay?
asked by scooby91320002 
social studies
what did the africans eat back then.
asked by shatyra owens 
Math
miltiply (6.4)(8)(5)
asked by Mary 
math
18, 38, 44, 50 QUESTIONS SHOW WORK/EXPLANATION & ANSWER IN THIS COLUMN. 18. Simplify: 38. Evaluate: 44. Number problem. One task took 7 minutes (min), a second task took 12 min, and a third task took 21 min. How long did the three tasks take as a fraction
asked by ernest 
8th grade
why did a policy of isolation suit most americans in the early 1800s?
asked by Ranell 
6ht grammar
I need help on plural possessives Are these answers correct? Balloon races have become popular. Several aiport's are supporting this race. An area is reserved spectators. One spectator's son is in the race. The occasion is a photographer's delight. Will
asked by pam 
math
which of the following are intergers? 2/11 705,0.033,780,86.7
asked by Martha 
math
Place the following set of numbers in ascending order 2/15, 5/9,1/8,1/9,2/7
asked by Martha 
5th grade scince
how many eggs dose a clown fish lay?help????
asked by chelly 
Math
a. Evaluate the following. Remember to use the order of operation 16 ٪ (2) • (4) 23 + 4 b. Explain the steps taken
asked by Terry 
French
What verb do we use for the verbe auxiliaire (helping verb)?
asked by Claire 
math
Find the reciprocal of 1/7 (101)
asked by eddie 
Algebra 2 with trig
Simplify the rational expression. 2x/x^2+4x+3 divided by 1/x+3 plus 2/x+1
asked by Pari 
math
what other words are for dividion?
asked by tren5 
need help math
a. Evaluate the following. Remember to use the order of operation 16 ٪ (2) • (4) 23 + 4 b. Explain the steps taken
asked by terry 
english
what is an endnote? do you put a number after a quotation and then do you have a page at the end listing all of numbers with corresponding sources. I don't get it
asked by kayla 
Math 6th grade
name a fraction between 2/3 and 3/4 whose denominator is 1.
asked by KathyHELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
eng
use hackneyed in a sentence. can someone make one for me
asked by melissa 
Math
If Katrina leaves now and drives 66km/h, she will reach Alton just in time for her appointment. On the other hand, if she has lunch first and leaves in 40 minutes, she will have to drive 90km/h to make her appointment. How far away is Alton? How would you
asked by Logan 
dividing monomials
How would you solve this and could you give more examples? (e)^6f^1/e^6f^4
asked by mb 
geometry
ok,judy lies on the ground 45 feet from her tent. both the top of the tent and the top of the cliffare in her line of sight. her tent is 10 feet tall. about how high is the cliff
asked by Quintasia 
math
The scientists Verhulst (1828) and Peal (1930) proposed the following growth model for a population living in an environment with limited resources (e.g. space, food, sunlight, etc): = , where is the natural growth rate of the population when resources are
asked by josh 
Math
d+b/c when b=5, c=1.32, d=0.8
asked by Larry 
eng
sentence for prerogative
asked by melissa 
english language.
when is 'the' used in the english language.
asked by jamis 
algebra
I can't figure out how this is simplified. 3x/2+3x can you help?
asked by Douglas 
world history
what is early people because i am a 6 grader
asked by cool 
astronomy
why does Venus have such a high Albedo
asked by Mike 
english
sentence for prerogative sentence for provincial please make one up . =)
asked by melissa 
language
plse refresh me on what a thesis statement is plse and thx you i just want to get it right
asked by Amy 
french
is this correct? Ashlee Simpson est la femme de Pete Wentz. Homer et Marge sont les parents de Maggie. Miley est la fille de Billy Ray. Kevin Jonas est le frere de Nick. would i use any forms of de (du, de la, de l', des) for any of these?
asked by amanda 
English
maculine for :nurrse student child student
asked by Emerald 
english
femini dentist,doctor,person andteacher
asked by Emerald 
science
potential energy is energy of _______ or chemistry?
asked by Colin 
HS Math
2x/x^2+4x+3 divided by 1/x+3 plus 2/x+1
asked by Pari 
english
What is a declarative definition in an sentence?
asked by dumitru