Questions Asked on
November 12, 2010

chem
A 2.241 g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide. 1)NiO Give the number of moles of each element to support you answer. moles of Ni 2) 1.339 mol moles of O 3)1.34 mol I know #1
asked by hannah 
Math
Find the maximum area of a triangle formed in the first quadrant by the xaxis, yaxis, and a tangent line to the graph of y = (x+1)^2
asked by Javier 
Physics
Can height be negative?
asked by Michael 
Finance
Would you be willing to pay $500 today in exchange for $10,000 in 30 years?
asked by Angela 
Geometry
m∠1 = 6x and m∠3 = 120. Find the value of x for p to be parallel to q. The diagram is not to scale. *114 *126 *120 *20 Find the values of x, y, and z. The diagram is not to scale. (38*, 56*,19*,x*,z*,y*) *x = 86, y = 94, z = 67 *x = 67, y = 86, z = 94
asked by Anonymous 
physics
A block of mass 12.0 kg slides from rest down a frictionless 35.0° incline and is stopped by a strong spring with k = 1.50 104 N/m. The block slides 3.00 m from the point of release to the point where it comes to rest against the spring. When the block
asked by beth 
math
Sam and markus are standing on level ground 100m apart. A large tree is due north of markus and on a bearing of 65degrees from sam. The top of the tree appears at an angle of elevation of 25degrees to sam and 15degrees to markus. Find the height of the
asked by putri 
english
rewrite this. Do you know what history is Here is one answer it is everything humans have done and thought here is a more specific answer History is the first story of events it is the story of nations and persons how people began writing is a part of
asked by Tom.H 
physics
A 120 kg crate on a flatbed truck is moving at 1.5 m/s2 for 65 m. What is the total work done on the crate if it's sitting horizontally at an angle of 0 degrees?
asked by rtretr 
science
1. Which combining form means “ear”? A. ONC/O C. OT/O B. OPT/O D. ORTH/O 2. Which group of words describes a condition that results from aging? A. Presbyopia C. Muscle tone B. Articulation D. Astigmatism 3. The most complicated part of the brain is the
asked by muse 
history
what was the cause of the sand creek massacre?
asked by cierra 
Calculus
fter a foreign substance is introduced into the blood, the rate at which antibodies are made is modeled by f(t) = 27 t/8 t^2 + 3 where f(t) is in thousands of antibodies per minute, and t is measured in minutes with 0 ≤ t ≤ 60. Assuming that there are
asked by Erika 
math gr.6
How to find the arm strides of 5 people? What is the median arm span? What is the median stride? I know that arm span is almost equal to the height. Please, help. Thank you.
asked by Anonymous 
Geography
Multiple select These cultural characteristics indicate the influence of the early colonists in Latin American. 1) Spanish is the official language of most countries. 2) Roman Catholicism is the most widely practiced religion. 3) Native Americans speak
asked by Jon 
AP Physics
A husband and wife take turns pulling their child in a wagon along a horizontal sidewalk. Each exerts a constant force and pulls the wagon through the same displacement. They do the same amount of work, but the husband's pulling force is directed 50°
asked by Abagail 
physical chemistry
For the process CH4(g) = C(s) + 2H2(g) A reaction is started in a rigid vessel at 1000 K with 1 mole of methane and 1 mole of hydrogen gas at 10 bar. Use table C.3 from your text to determine how many grams of carbon should be formed after the reaction has
asked by patrick 
US History
5. When a government lifted price controls after the war, prices a. remained about the same b. rose faster than wages c. fell to prewar levels d. required government support Can't decide between A and B... 6. Which of the following contributed to the
asked by mysterychicken 
science
18. Which of the following best describes the overall function of hormones? A. To control physiological processes in the body B. To provide a pathway for nerve messages C. To stimulate the growth and maturation of body organs D. To determine masculine or
asked by Reds 
Algerbra
f(x)=4x^2+7x5 and g(x)=9x^2+3x14
asked by Phil 
Linear EQUATIONS
Need help! Graph the equation and identify the y intercept. Y = 1/5 x THANK YOU!
asked by Jessica 
chemistry
CoCl3(aq) + K2S(aq) yield Co2S3(s) + KCl(aq) How many moles of KCl would be produced when 0.470 moles of Co2S3 are produced in the above unbalanced reaction? How many moles of K2S would be required to react with 0.940 moles of CoCl3? How many moles of K2S
asked by sarah 
AP chemistry
For the following electronic transitions in the hydrogen atom, calculate the energy, frequency, and wavelength of the associated radiation. From n = 3 to n = 6. From n = 9 to n = 3. From n = 7 to n = 4.
asked by Alex 
US History
18. For what consumer item did Robert de Graff create a vast new market? a. zippers b. movies c. paperback books d. trucks C? 21. Why did a number of nations join to form NATO in 1949? a. to solve postwar problems as an agency of the United Nations b. to
asked by mysterychicken 
Math: Calculus
Estimate the area under the graph of f(x)=x^2+2x from x = 4 to x = 10 using 3 approximating rectangles and left endpoints. I got 290.25 as my answer but it's wrong. Would someone explain to me how to answer this question.
asked by REALLY NEED HELP!!!! 
LIMIT(CALCULUS)
lim(x1)(2x+3) x>3
asked by gen 
physics
Maria throws an apple vertically upward from a height of 1.2 m with an initial velocity of +2.7 m/s. Will the apple reach a friend in a tree house 4.8 m above the ground? the tree house 2. No, the apple will reach 1.40733 m below the tree house 3. No, the
asked by helpless 
Algebra I
Hi, I would like someone to explain to me the process to get to the answer of these questions. (The answers are in the back of the book, but I don't understand how to get them myself): QUESTION ONE Warren has 40 coins (all nickels, dimes, and quarters)
asked by A 
Physics
A cylinder with a piston is filled with ideal gas. The gas temperature is held at 450 K. The cylinder is heated by an oven through a square metal rod connected between the oven and the cylinder. The rod has sides d = 2 cm and length L = 2.3 m. (a) If the
asked by Need Help 
science
I need to write an essay on the topic[prompt] Do you think all children should have to be vaccinated against serious disease before they are allowed to enter school? I can't seem to find many helpful sites.. I tend to not believe in all vaccines, just a
asked by Jarrad 
college
A dog bites a large chunk of flesh from a man's leg. The large, open wound will likely heal by the process of?
asked by Lisa 
Physics
Beatrice throws the 1st calculator straight up from the edge of the roof of a building. She drops a 2nd calculator off the side of the building 2 seconds after she has thrown the first one. If the height of the building is 40m, what must the initial
asked by Heidi 
chemistry
If 3.50 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 30.°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 31°C to 54°C?
asked by Delaney kidd 
Physics
With the energy needed to warm up some amount of water from 40C to 64C, how high could you lift it?
asked by lisa 
Biology
The polymerase chain reaction (PCR) is useful for: A) making many copies of a small amount of DNA B) creating recombinant plasmids C) analyzing a person’s fingerprints D) cutting DNA into many small pieces E) allowing restriction enzymes to cut DNA at
asked by stelle 
Health
Can a couple get Chlamydia within their selfs?
asked by sara h. 
9th grade
What is a parent function?
asked by Sami 
physics
An RC circuit contains a 3.9 kΩ resistor and a 5 µF capacitor. When the switch is first closed in the circuit, a maximum current of 1.5 mA flows in the circuit. Using Equation (1), find the time at which the current flow will have fallen to 1.0 mA.
asked by san juan 
science
what was the acceleration of an object between 8 and 10 seconds if velocity at 8 seconds is 10 mi/hr and 0 mi/hr at 10 seconds?
asked by chris 
Computers
How would the pieces and components of a peertopeer network relate to each other?
asked by Tiara 
College algebra
What is the fundamental theorem of algebra for x^664?
asked by amy 
criticial thinking
Examples of Rhetorical Definition
asked by Anonymous 
US History
I need to write an essay on this, so can I please get some links to help me? My textbook only describes the domestic decisions, not foreign. Thanks! 25. Describe some of the major foreign policy decisions of the Kennedy Years. How were they consistent with
asked by mysterychicken 
Math
A point is sliding along a curve y^2 = 1 + cos^3(2x) at whatever speed (even depending on time). Compute the ratio of the rates of change of the vertical and horizontal coordinate with respect to time when the point is at (x, y).
asked by Bruce 
reading
in chronicles of narnia whats the word ROW's sentence
asked by haley 
math
thankyou so much in advance.I need to write an equation in the variable x having sqrt5,6sqrt5 as solutions. This needs to be in standard form ax^2 + bx +c =0. Thank you again and can you show me how you worked It?
asked by barb 
statistics
Assuming the resting heart rates for a sample of individuals are normal distibuted with a mean of 70 and a standard deviation of 15. Waht percentage of rates less than 70
asked by Darlene Watson 
college
A lot of people don't have wills. Everyone needs a will, but not all people have one. Wills are important because they explain who gets your stuff after you. You don't want your things going to someone you don't want them to go to. My Aunt Martha went to a
asked by renea 
calculus
if f(x)=Inx, find: f(2)+f(3) solution pls
asked by gen 
French
Could you please check these thanks. Directions: Récrivez les phrases d'après le modèle. modèle: Il est parti? Oui, il vient de partir. 1. Ils sont partis? Answer: Oui, il viennent de partir. 2. Vous avez tous fini? Answer: Oui, vous venez de finir. 3.
asked by miami 
calculus
if f(x)=4^(2x)1, find :f(1)+f(2) solution pls
asked by gen 
Finance
Demand of Bonds Point Price of bond Interest rate (i) Demand A $925 (1000  925)/ 925 = 8.1% $100 billion B $800 (1000  800)/ 800 = 25% $400 billion Table 2: Supply of Bonds Point Price of bond Interest rate (i) Demand A $925 8.1% $400 billion B $800 25 %
asked by carey 
calculus
if f(x)=3^(x)3^(x), find : f(2), f(1) solution pls..
asked by gen 
Logic and Design
What logic is used when pseudocoding compound conditions?
asked by Yvonne 
calculus
if y1=x^(2)+3x1 and y2= x5 find: a. y1+y2 b. y1y2 c. y1*y2 solution pls..
asked by gen 
math
If x and y are any positive real numbers, then (8a 2y)(6b 18y)
asked by Anonymous 
Math
What are the horizonatal asymptotes of y=(1000)/(1+9e^(.1656x))?
asked by Ashley 
english
intermittently:continuously:: ??
asked by Anonymous 
calculus
The side of a square are increasing at 2 inches per second. How fast is the diagonal increasing when the side is 3 inches?
asked by jessica 
english
I am doing Shakespeare studying Much ado about nothing and do not understand what the following quotation means: "Being reconciled to the prince your brother: I owe you all duty" "Let us to the great supper, their cheer is greater that I am subdued. Would
asked by anonymous 
Health
is this sentence correct?: Gambling is a form of game that is played for fun or in order to win by chance in faith of luck
asked by Beauty 
Physics Lab
We have a metal ball and a ramp that we can clamp to the edge of a table. We are supposed to find the coefficient of friction between the ball and the ramp. We think we should use projectile motion and the law of conservation of energy. We don't know what
asked by Heather 
math 050
1/2 + 2/3
asked by Anonymous 
math 050
2/3 ÷ 2
asked by Anonymous 
math 050
3/5 ÷ 4/5
asked by Anonymous 
US History
1. How did the pattern of European immigration shift in 1890? a. from Jewish to Catholic Europeans b. from northern to southern and eastern Europeans c. from eastern to southern Europeans d. from eastern to western Europeans B? 2. The massive government
asked by mysterychicken 
english
are these tenses correct please Educating myself about financial planning makes me an efficient student. (Present tense) I had financial problems when I failed to save. (Past tense) Financially I have to know how to plan ahead. (Future Tense) I know how to
asked by dieseldes 
English
1.We have planted several new varieties of day lilies along the fence. 2.Soon, my shoes were full of sand. 3.For a beginner, he plays well. 4.She jogs around the reservoir every morning. 5.With great courage, Rosa Parks disobeyed the bus driver. Identify
asked by Janice 
Math
What are the horizonatal asymptotes of y=(1000)/(1+9e^(.1656x))?
asked by Ashley 
trig
what is the classified given angle of 177 degrees?
asked by eddie 
calculus
A man starts walking north at 2ft/s from a point P. Twentyfive seconds later a woman starts walking south at 3ft/s from a point 400ft due east of P. At what rate are the people moving apart 50 seconds after the woman starts walking? Do not include units
asked by Jasmine 
Fin 200
Healthy Foods, Inc., sells 50pound bags of grapes to the military for $10 a bag. The fixed costs of this operation are $80,000, while the variable costs of the grapes are $.10 per pound. a. What is the breakeven point in bags? b. Calculate the profit or
asked by Wayne 
PreCalc
Determine whether the sequence is arithmetic. If so, find the common difference. 4, 16, 64, 256, 1024
asked by gh 
AVID/Honors{Rap}
I need help completing my rap about bullying. If you have any suggestion to add please don't hesitate to add also if you have any suggestions that need to be change or don't make sense please do report.{make sense...please} Bullying. Bullying, with a
asked by Rodney yoyo kidd 
physics
A 102.0 N grocery cart is pushed 13.0 m by a shopper who exerts a constant horizontal force of 54.0 N. If all frictional forces are neglected and the cart starts from rest, what is its final speed?
asked by derek 
function
if y1=x^(2)+3x1 and y2= x5 find: a. y1+y2 b. y1y2 c. y1*y2
asked by merx 
PHYSICS/ GRAVITATIONAL CONSTANT
Three masses are arranged in the (x,y) plane. The X and Y units are meters 4kg at (1,5 3kg at (1,1) 5kg at (0,0) What is the magnitude of theresulting force on the 5kg mass at the origin? The universal gravitational constant is 6.673e11 N*m^2/kg^2.
asked by CJ 
math50
24/50 × 5/8
asked by Anonymous 
math50
2  1/8
asked by mya 
math50
Can 15/20 be simplified?
asked by mya 
social studies
How do terrorist groups use the media to portray their message
asked by jess 
English
Can you please tell me if my last sentences are possible? What does "to be a snake" mean? Does it mean Jason is unfriendly to Storm? 1) Mickey is late because he’s got the wrong room number on his timetable. 2)He apologises to Mrs Winter for being late.
asked by Franco 
science
need to identify the elements, compounds and mixtures of the iron and sulpher reaction.
asked by jack 
math
Find out the equator on this 68, 195, 34, 56
asked by Anonymous 
statistics
Why might the following not be normally distributed? (a) The time it takes you to drive to the airport, (b) The annual income for a randomly chosen major league baseball player, (c) The annual hurricane losses suffered by homeowners in Florida.
asked by Anonymous 
statistics
Why might the following not be normally distributed? (a) The time it takes you to drive to the airport, (b) The annual income for a randomly chosen major league baseball player, (c) The annual hurricane losses suffered by homeowners in Florida.
asked by Anonymous 
math
how do i figue out how to do arrays and an expanded algorithm
asked by lane 
science
20. Which combining form means “ear”? A. ONC/O C. OT/O B. OPT/O D. ORTH/O 21. Which group of words describes a condition that results from aging? A. Presbyopia C. Muscle tone B. Articulation D. Astigmatism 22. The most complicated part of the brain is
asked by betty 
science
1. All of the following are parts of the retina except A. rods. C. fovea. B. cones. D. lens. 2. Which of the following are tests of the eye? A. Cephalgia, chondrodynia, sternotomy B. Myelography, photon absorptiometry, thermography C. Rheumatoid arthritis,
asked by ADAM 
science
3. The membranous coverings that protect the b B. meninges. D. gyri. 4. A common result of hyperthyroidism is A. acromegaly. C. Graves’ disease. B. osteoporosis. D. myxedema. 5. A 63yearold man has become progressively hard of hearing. He’s a retired
asked by blake 
Linear Equation question
Hello! quick question. why the line y = 3 is a horizontal line. describe how this line sits on the Cartesian (coordinate) plane. I have tried a few thoughts on this. Firstly the horizontal sits on the y intercept. The graph y = b is a horizontal line. 3
asked by AMY 
science
2. A man is shot in the head, and the bullet stops just outside the dura mater. What is the innermost layer that the bullet has penetrated? A. Skin C. Fat B. Bone D. Periosteum 3. Which part of the brain is responsible for the maintenance of muscle tone
asked by JT WALLS 
6 grade algebra
cindy earns 6% simple interest each year on her savings account. if she has $850 in her account and leaves the money in there for 5 years. how much interest will the money earn? what is the new balance in cind's account?
asked by sierra 
science
5. The Papanicolaou test is used to detect A. conization in situ. C. minimal cervical dysplasia. B. protein in the urine. D. colonic polyposis. 6. The function of the antidiuretic hormone is to A. retain water for the body’s use. B. begin digestion of
asked by JALL SHAW 
AVID/Honors{Rap}
HELP PLEASE.............
asked by Rodney yoyo kidd 
science
. What is cystitis? A. A congenital condition of the kidneys B. Inflammation of cysts in any organ C. A type of urinary tract infection D. Irritation of the urethra and/or meatus 9. Uremia is the result of A. electrolye imbalance in the intracellular body
asked by TONY 
science
13. A procedure used to remove kidney stones by breaking them up in the urinary tract and allowing them to wash out with urine is A. ureterolithotomy. C. lithotripsy. B. lithopaxy. D. nephrolithotomy. 14. The convulsive stage of toxemia of pregnancy is A.
asked by mac 
Economics
At range of outputs showing economies of scale or size is called what?
asked by Laura 
US History
11. Although settlers valued democracy, they often a. rejected controls over government b. elected weak legislatures c. disregarded the rights of minorities d. failed to vote Not sure... 12. Jack Kerouac, the author of On The Road, was the a. pediatrician
asked by mysterychicken 
algebra
3k=1/7
asked by john 
chemistry
Calculate the molarity of a solution made by diluting 0.200 L of 1.00M HCl solution to a volume of 1.00 L
asked by Liza 
social studies
Which event occurred between the Scientific Revolution and the French Revotution
asked by tony 
Chemistry
Reacting Potassium carbonate with Barium chloride
asked by Chris 
physics
A car's maximum acceleration on a dry road is 10 m/s2. What speed should it have to be able to make a turn with a radius of 47 meters?
asked by john 
physics
A car's maximum acceleration on a dry road is 10 m/s2. What speed should it have to be able to make a turn with a radius of 47 meters?
asked by john 
social studies
The question deals with a time line. I know the Scientific Revolution , French Revolution and the Industrial Revolution from the 1500's to 1945.
asked by tony 
English
1.We have planted several new varieties of day lilies along the fence. 2.Soon, my shoes were full of sand. 3.For a beginner, he plays well. 4.She jogs around the reservoir every morning. 5.With great courage, Rosa Parks disobeyed the bus driver. Identify
asked by Janice 
math
A car travels along a straight road, heading east for one hour then traveling for thirty minutes on another road that leads northeast. If the car has maintained a constant speed of forty miles an hour, how far is it from its starting position
asked by tonda 
Physics
From the edge of a 25 m building, a student threw s rock up 35 m/s and it landed on the ground. How long was the rock in the air?
asked by Marie 
Math: Calculus
Estimate the area under the graph of f(x)=3x^3+5 from x=1 to x=4, first using 5 approximating rectangles and right endpoints, and then improving your estimate using 10 approximating rectangles and right endpoints. I'm having problem with using the
asked by REALLY NEED HELP!!!! 
PHYSICS HELP!
A patient is to be given a blood transfusion. The blood is to flow through a tube from a raised bottle to a needle inserted in the vein . The inside diameter of the 4.8 cm long needle is 0.48 mm, and the required flow rate is 4.9 cm/3 of blood per minute.
asked by tiffany 
Calculus
I'm having a little trouble with this problem...it would be great if you could point out where I'm going wrong. Hours of Daylight as a Function of Latitude. Let S(x) be the number of sunlight hours on a cloudless June 21st, as a function of latitude, x,
asked by Sara 
math 050
24/50 × 5/8
asked by mya 
english
Can someone please give me ideas of 3 pros of eating meat and 3 cons of eating meat? Please and thank you
asked by daniel 
math 050
2  1/8
asked by mya 
math 050
1/4 × 3/5
asked by mya 
ELA
What website can I find information on Vampire Survival and Examples From The Movie of Vampire being killled.?????
asked by Anonoyms 
Physics
A person pulls a toboggan for a distance of 30.0 m along the snow with a rope directed 15.0° above the snow. The tension in the rope is 99.0 N. (a) How much work is done on the toboggan by the tension force? (b) How much work is done in the same tension
asked by Veronica 
someone help me PLEASE
Help me please!
asked by mya 
US History
33. Because of its reliance on aircraft to carry nuclear weapons, the United States lagged behind the Soviet Union in a. hydrogen bombing testing b. spy plane technology c. missile development d. destroyer and cruiser connection C? 36. What development
asked by mysterychicken 
math!HELP!!
write a quadratic equation in the variable x having the given numbers as solutions. Use ax^2 + bx + c=0 Thanks so much for the help
asked by barb 
geometry
What is the slope of the line perpendicular to the line represented by this equation y = ½ x + 24 ?
asked by Anonymous 
LIMIT(CALCULUS)
lim(y^2+5y1) y>2
asked by gen 
Math Models
What type of graph is best suited for displaying the range and frequency distribution of the number of hours the students in a class spend on homework while still showing each individual amount of time spent on homework?
asked by Anonymous 
LIMIT(CALCULUS)
lim y^3y^2y2/2y^35y^2+5y6 y>2
asked by gen 
LIMIT(CALCULUS)
lim sin teta(sin2 teta)/1cos teta teta>0
asked by gen 
LIMIT(CALCULUS)
lim xcsc(3x) x>0
asked by gen 
chemistry
a 30. L sample of gas exerts 200. mm Hg pressure at 10 degrees C. What volume does the gas have at 300. mm Hg and 25 degrees C?
asked by kaitlin 
social studies
What Does AlQaeda actually want to achieve
asked by jess 
algebra
two nombers have a sum of 15. one of the numbers is x. Find an expression for the other number
asked by alex 
social studies
why does al qaeda exist?
asked by jess 
Physics: Angular Width. Why is my answer wrong?
A beam of yellow laser light (590 nm) passes through a circular aperture of diameter 5.0 mm. What is the angular width of the central diffraction maximum formed on a screen? I can't seem to get this answer right. I don't think I am finding the first part
asked by Sar 
physics
A robot probe drops a camera off the rim of a 245 m high cliff on Mars, where the freefall acceleration is 3.7 m/s2. Find the velocity with which it hits the ground. Answer in units of m/s. 2)Find the time required for the camera to reach the ground.
asked by clue 
history
what was the role of sioux nad cheyenne in the battle of little bighorn?
asked by ashely 
4th grade algebra
what is 77777 eguals?
asked by Judy 
english
A novel of manners deals with the customs of a specific social class. true?
asked by danny 
US History
43. President Truman issued the Truman Doctrine in response to a. Soviet aggression in Poland b. pressure by Communists on Turkey and Greece c. Churchill's "Iron Curtain" speech d. Stalin's demands at the Postdam Conference A? 45. The Weathermen alarmed
asked by mysterychicken 
physics
Stephanie serves a volleyball from a height of 0.76 m and gives it an initial velocity of +7.2m/s straight up.How high will the volleyball go? The acceleration of gravity is 9.81 m/s2. Answer in units of m. 2) How long will it take the ball to reach its
asked by wow 
Physics
A tennis ball of mass= 0.058 kg and speed= 19 m/s strikes a wall at a 45 degree angle and rebounds with the same speed at 45 degrees. 1. What is the magnitude of the impulse given to the ball? 2. What is the direction of the impulse given to the ball?
asked by Nick 
math gr.6
I already found the arm span of 5 people. How do I find the median stride?
asked by Anonymous 
physics
A small firstaid kit is dropped by a rock climber who is descending steadily at 1.6 m/s. After 1.6 s, what is the velocity of the firstaid kit? The acceleration of gravity is 9.81 m/s2. 2)How far is the kit below the climber after the 1.6 s?
asked by john 
chem
I am having a hard time with the following : 50 g HCl + 50g Ca(OH)2=H2O+? amt of CaCl2? I don't know how to set this prob. up.Please HELP!Thank you in advance....
asked by joann 
physics
What is the instantaneous velocity of a freely falling object 28 s after it is released from a position of rest? The acceleration of gravity is 9.8 m/s2 . 2)What is its average velocity during this 28 s interval? 3) How far will it fall during this time?
asked by helpme 
Physics
A 0.028 kg rifle bullet traveling 210 m/s buries itself in a 3.1 kg pendulum hanging on a 2.5 m long string, which makes the pendulum swing upward in an arc. 1. Determine the vertical and horizontal components of the pendulum's displacement.
asked by Nick 
math
What are the real roots of the quadratic function 4x^2x+5?
asked by anon 
physics
A ball is thrown straight up with an initial speed of 60 m/s. How high does it go? Assume the accelera tion of gravity is 10 m/s22 2)How long is it in the air?
asked by stan 
Chemistry 214
Help! A soultion contains 0.100 Pb(NO3) and 1.00x10^5 M AgNO_3. It is intended to separate out the silver by selective precipitaion of AgI. What is the maximum percentage of total silver that can be recovered free of contamination by PbI_2? (ksp for
asked by Jade 
Science
What is the difference between granite and gabbro?
asked by Jan 
Physics
You decide to build a cyclotron (because you are bored) that will accelerate protons to 10% of the speed of light. The largest vacuum chamber you can find is 50cm in diameter. What magnetic field strength will you need?
asked by Ri 
criminal justice 240
CheckPoint: Drug Use and Delinquency Response Write a 200 to 350word response answering the following questions according to the journal articles: o What are the main reasons of youth drug use? o How does drug use relate to delinquency?
asked by Cristina 
english
What does this mean? "If you have no intention of loving or being loved, then the whole journey is pointless."
asked by heather 
PHI103
Cathy owes the local video store six overdue movies.Each of Cathy's overdue movie is a comedy, only comdies are overdue at the local video store. What premise added to this statement would make this conclusion valid? Answer: Cathy is the only person that
asked by Renee 
physics
show that in the limit that the radius of the sphere goes to zero to kept the magnetic moment constant
asked by bbb 
physics
A ball is thrown vertically upward with a speed of 23.7 m/s from a height of 2.0 m. How long does it take to reach its high est point? The acceleration of gravity is 9.81 m/s2 2) How long does the ball take to hit the ground after it reaches its highest
asked by stan 
English
1. It is easy for us to weed the garden. 2. It is easy for us to work in the garden. 3. For us to weed the garden is easy. 4. For us to work in the garden is easy. (Are they all grammatical and the same?)
asked by rfvv 
human resources
Prepare a 700 to 1,050word report on a career management plan for your new employees. Assuming your budget is zero; provide a justification of why your report will work.
asked by Anonymous 
English
1. I lied and told him that you were a fine gardener. 2. I lied and I told him that you were a fine gardener. 3. I lied him that you were a fine gardener and I told him that you were a fine gardener. 4. I lied him and I told him that you were a fine
asked by rfvv 
math 050
What is 120/400 after u simplify it?
asked by mya 
geometry
The points L(4, 0),M(10, 0), and N(7, 5) form #LMN.What is the sum of the slopes of the three sides of the triangle?
asked by jamie 
writing
I am writing an oppossing views essay on the effectiveness of the death penalty. Any thoughts on how I should begin? I understand that I am not supposed to give my opinion. Thanks!
asked by Lynne 
Biology
Which of the following is NOT a current goal of biotechnology? A) more effectively treating disease B) improving agriculturally important food plants C) efficiently producing biologically important molecules D) creating humans with higher intelligent
asked by stelle 
College Chemistry
1.14g of sodium bicarbonate (NaHCO3)is dissolved in 500 mL H2O. What is the Ph of the solution? Assume constant volume.
asked by Elizabeth 
Math
12;8t=96
asked by Angel 
Multivariable Calculus
Determine the range of a snowball thrown with an initial speed of 6 meters/sec at an angel of elevation of 45 degrees. (Assume g = 9.8 meters/sec) I'm not really sure what I'm supposed to find here, am I supposed to find the horizontal distance or the
asked by Douglas 
Math
7+(v+w)
asked by Angel 
Math
4/5+8/15=
asked by Angel 
Earth CRYience
Assume a parcel of air on the surface with a temperature of 29 degrees Celsius with a relative humidity of 50%. If the parcel rises at what altitude should clouds form?
asked by Anon 
stoichiometry problems
Hey I hve problems with calculate stoichiometry problems and next week I have a test about it can someone help me out and give me a site where everything is written step by step ....thank u guys :) I REALLY NEED HELP NO JOKING
asked by Tarkan 
physics
You should expect concrete to have an elastic constant that is _____ than wood. a. larger than b. smaller than c. equal to
asked by Amber 
physics
Graph #1 is a parabola. Graph #2 is a hyperbola. a. Only graph 1 may possibly represent Hooke's law b. Only graph 2 may possibly represent Hooke's law c. neither
asked by Sonya 
chemistry
Light with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron is 3.39 105 m/s, what energy was expended in removing the electron from the metal?
asked by Anonymous 
physics
A dinner plate drops and breaks. This best illustrates the ______ law of THERMODYNAMICS A. 1st b. 2nd c. 3rd d. 4th
asked by Christina 
ALGEBRA2
The graph of equation is expanded vertically by a factor of 3 and reflected over the xaxis. how would you describe the graph?
asked by kay 
physics
A wave that is travelling due west causes particles of the conducting material to ibrate "north/south". This wave is best described as: a. longitudinal b. transverse c. tran!@#$%^&e d. permute
asked by Amber 
math
9t=27(t  1/3)
asked by ken 
physics
A certain wave is incident on an interface at an angle of 40 deg. The wave emerges into the other material at an angle of 30 deg. Crossing the interface, the wave: a. increased speed b. reduced speed c. maintained constant
asked by Sonya 
physics
An observer detects an apparent frequency of 505 hz coming from a 500 hz source. Which is true? a. the observer is moving due east, away from the stationary source b. the source is moving due west, away from the stationary observer c. the souce and the
asked by Christina 
physics
A 2000 lb box is being held at rest submerged in water. The box is displacing 2500 lbs of water. When the box is released from its submerged position, the box will a. sink b. rise to the surface and float c. remain where it is d. result unknown
asked by Amber 
math
solve using the multiplication principle. 3/7x=6/35 I really need help with this problem. Thanks
asked by cindy 
physics
A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
asked by Sonya 
Math!!!!
I am getting desperate. Can someone please help me with this and thank you in ADVANCE!!!! WRITE A QUADRATIC EQUATION IN THE variable x given the solutions: sqrt7, 7sqrt7.This needs to be in the standard form ax^2 + bx+c=0. I really need help as this is
asked by barb 
physics
A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
asked by Christina 
math116
8x27=32 1/5 the solution must be in the form as an integer or simplified fraction. Thank you.
asked by tiffany 
physics
A series of waves traveling at 200 m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a certain wave is ____ meters from a corresponding point 3 crests away.
asked by Amber 
physics
A 400 calorie quantitiy of heat is added to 20 grams of water and as a result, the water reaches a final temp of 70 deg. C. The starting temp of the water was most nearly _____ deg C.
asked by Sonya 
physics
A spring that is .7m in length elongates to 1.06 m when a 20 newton force is exerted to stretch the spring. By how much more does the spring stretch when an additional 8 newtons of force is exerted on it?
asked by Christina 
physics
What approximate change in decibles does an observer experience form a sound source if the oberver moves to a new location that is 67% as far from the source?
asked by Amber 
Physics
Four identical 12µC charges are placed at the corners of a square of sides 44 cm, with one additional 12µC charge placed at the center. Find the electric potential at the midpoint of one of the sides.
asked by Ivan 
Physics Help Please
A sample of an unknown material appears to weigh 270 N in air and 165 N when immersed in alcohol of specific gravity 0.700. (a) What is the volume of the material? (b) What is the density of the material?
asked by A 
physics
A gas is taken though a single process in which its volume decreases by .25 m^3 as the temp of the gas rises 2deg C. Which of the following people are more likely to have reached the correct conclusion? a. Bob ids this process as adiabatic b. Jill ids this
asked by Christina 
Physics
.) Beth launches a rocket out in the courtyard. It stays in the air for 7.25 seconds before coming back down. a.) How high did it get? b.) With what velocity did it hit the ground upon returning to Earth? c.) What is its rate of acceleration as it slows
asked by Heidi 
PLEASE HELP ME MATH
I only have 1 hour to get this question answered. Thank you in advance. I need a quadratic equation in the variable x given the solutions: 7 sqrt 7, and 7 sqrt 7 This needs to be in the standard form of ax^2+bx+c=0. Can someone please help me with
asked by barb 
PHysics
.) Bailey has taken up parkour. She attempts to clear the gap between two buildings. Bailey is on a roof which is 50m high and she is attempting the jump to a building that is 42m high. a.) If the two buildings were built touching (i.e. there is no gap)
asked by Heidi 
international business
True or False: It is possible for a firm to purchase complete insurance against the risks that arise from changes in exchange rates in the foreign exchange market.
asked by anonymous 
PHYSICS HELP!Hooke's Law
You should expect concrete to have an elastic constant that is _____ than wood. a. larger than b. smaller than c. equal to So...based on what I looked up as the definition for elastic constant and linear elasticity, I think conrete is less elastic than
asked by Jael