
Math
**The topic is exponents** A candy maker is making taffy. He starts with one long piece of taffy and cuts it into 3 pieces. He then takes each resulting piece and cuts it into three pieces. He then takes each of these resulting pieces and cuts it into
asked by Nikko on February 21, 2018 
Math
A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay
asked by Vanessa on April 5, 2014 
Math
A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay
asked by Vanessa on April 6, 2014 
Math
Uh...Yea... Sorry about this, but I"m trying to study and I need someone to walk me through, missed a lot of school. fyi, when there's a / its under the entire string before it until you hit the inequality symbol. Tony Bowled 135 and 145 in his first two
asked by Jayme on October 21, 2015 
Physics review
In this example, sound waves are created in a tube. The tube is partially filled with water and the level of water is adjusted in the tube until there is a standing wave. Draw the lowest frequency standing wave for the two water levels in the drawing. The
asked by hayley on July 25, 2012 
Math IN URGENT NEED OF FEEDBACK
If the temperature is constant, then the atmospheric pressure P (in pounds/square inch) varies with the altitude above sea level h in accordance with the law given below where p0 is the atmospheric pressure at sea level and k is a constant. P = p0ekh If
asked by Anonymous on April 13, 2011 
Mathematical measurement
Find the ratio of the longest side to the perimeter of the righttriangularshaped billboard. A scalene triangular billboard that says "Ski Whitetop" is designed to look like a snowpeaked mountain with a road leading up to the peak. The peak of the
asked by Ralph Willis on January 12, 2017 
statistics
An animal trainer obtained the following sample data (Table A) in a study of reaction times of dogs (in seconds) to a specific stimulus. He then selected another group of dogs that were much older than the first group and measure their reaction times to
asked by Anonymous on October 16, 2009 
Chemistry
I did an experiment to determine the freezing point depression and then find the molecular weight of the unknown solute added to the solvent, what would be the effect on calculating the molecular weight if some cyclohexane(my solvent) evaporated while the
asked by Lauren on February 25, 2009 
Beginners Algebra
For each table, find the output value that corresponds to an input value of 0. Chart; Input Output; 5 (negative) 22 (positive) 2 (negative) 10 (positive) 1 (positive) 2 (negative) 4 (positive) 14 (negative) 7 (positive) 26 (negative)
asked by Melina on November 26, 2010 
statistics
I need to find the chi square distribution. Thanks During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes
asked by ANGGY on October 10, 2014 
statistics
I need to find the chi square distribution. Thanks During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes
asked by ANGELA on October 9, 2014 
Physics
A motorist drives for 150 km from City A to City B in 2.5 hr. He makes the return trip in 2.0 hr. Find (a) the average speed for each half of the trip, (b) the average velocity for each half of the trip, (c) the average speed of the entire trip, and (d)
asked by Piper on June 16, 2014 
PhysicsCharges
A wall has a negative charge distribution producing a uniform horizontal electric field. A small plastic ball of mass 0.0261 kg, carrying charge of −102 μC, is suspended by an uncharged, nonconducting thread 0.369 m long. The thread is attached to the
asked by Joila on March 7, 2012 
psychology
Could someone please provide help formulating interview questions relating to learning, intelligence, cognition, problem solving, motivation, effects of gender and culture on emotions and personality. We will very much enjoy reading the questions you
asked by Anonymous on June 6, 2007 
English
I've been trying to find answers to there for a long time but I can't. Any help would be appreciated. Its about to kill a mockingbird 1) Why were Jem and Scout's schedules so different? 2) How dies Scout feel about the Radley place now? 3) What did Scout
asked by Unimportant on June 7, 2013 
maths
A coin box contained some twentycent and fiftycent coins in the ratio 4 : 3. After 20 twentycent coins were taken out to exchange for fiftycents coins of the same value and put back in the box, the ratio of the number of twentycent coins to the number
asked by Tim on January 27, 2014 
SS
What is the difference in the mission system used by the spanish and the empresario system? A. The Spanish sent out missionaries sponsored by the state and the empresario system had empresarios that settled on their own land. ** B. Both the Spanish and
asked by Check my answer on October 17, 2017 
math 12
The mean and standard deviation of a set of data are two measurments that describe the data. A certain student has written 8 out of 10 unit exams, which are equally weighted. The student misses the ninth exam and receives a score of 0. However, for the
asked by Leigh on April 7, 2010 
Calculus
The owner of a used tire store wants to construct a fence to enclose a rectangular outdoor storage area adjacent to the store, using part of the side of the store (which is 220 feet long) for part of one of the sides. (See the figure below.) There are 430
asked by Travis on March 4, 2013 
calculus
I have the following problem on a takehome assignment and am stuck. A particular stock has value V(t) at time t where V(t)=Ke^(1/2) where K>0. Assume that alternative investments grow in value to e^(rt). Calculate the instantaneous rate of change in the
asked by Rey on March 16, 2008 
Science..plz help : )
Is dog hair and human the same? And how? thanks a lot from Jessica!! Genetically it's not. If you were to look at the gene composition you'd clearly be able to tell the dog's hair from the human's hair. Shes wrong go on google and look up your question and
asked by Jessica<3 on December 7, 2006 
Algebra 2
Ordinary corn syrup contains dextrose sugar. A process called enzyme conversion changes it into a syrup that is 42% fructose. This new syrup can be further treated with fractionation columns to make a syrup that is 95% fructose (high fructose corn syrup).
asked by Anonymous on February 13, 2014 
reading
The National Aeronautics and Space Administration (NASA) has just released some startling information. The Earth's temperature reached its highest point in 136 years of recordkeeping during July. "July 2016 was absolutely the hottest month since the
asked by ali on September 4, 2016 
physics
A primitive diving bell consists of a cylindrical tank with one end open and one end closed. The tank is lowered into a freshwater lake, open end downward. Water rises into the tank, compressing the trapped air, whose temperature remains constant during
asked by kb on November 19, 2008 
SS
Well I cant find anything for social studies. No one ever wants to post them... But In what way did Beveridge think overseas expansion would help solve labor problems in the united states? A: Expansion would bring new foreign markets for American goods,
asked by Random Guy on February 16, 2017 
Theoretical&Experimental Probability please help!
Please check my work thanks!! A number cube with the numbers 1 through 6 is rolled. Find the given probability. 1. P(number < 2) (1 point) A. 1/6
asked by Matthew on March 6, 2013 
Math
Martin has scored an average of 12 points per game this season Game 1 he scored 8 points, game 2 he scored 11 points, game 3 he scored 12 points, and game 4 he scored 16 points. Use numbers from the box (2,3,4,5,8,11,12,13,16,n) to write an equation that
asked by Sammy R. on May 21, 2018 
physics
A 2.0kg ball moving at 10 m/s makes an offcenter collision with a 3.0kg ball that is initially at rest. After the collision, the 2.0kg ball is deflected at an angle of 30° from its original direction of motion and the 3.0kg ball is moving at 4.0 m/s.
asked by help please on May 6, 2012 
Physics
The electric field at the point x=5.00 cm and y=0 points in the positive x direction with a magnitude of 10.0 N/C. At the point x=10.0 cm and y=0, the electric field points in the positive x direction with a magnitude of 15.0 N/C. Assuming the field is
asked by Katherine on February 7, 2010 
Math
The position vectors, r km, and velocity vectors, vkm/h, of two boats at a certain time are given by Boat A: 10 am, r(a) = 6i+10j, v(a) = 8i2j Boat B: 10:30 am, r(b) = 8i+5j, v(b) = 4i+j If the boats collide, find the time when they collide as well as the
asked by Joel lu on January 14, 2013 
physics
A 2.0kg ball moving at 10 m/s makes an offcenter collision with a 3.0kg ball that is initially at rest. After the collision, the 2.0kg ball is deflected at an angle of 30° from its original direction of motion and the 3.0kg ball is moving at 4.0 m/s.
asked by help please on May 6, 2012 
English
Rewrote This because I added more of my ideas: Is the main conflict in Return of the soldier between Chris's desire to return to the past and his responsibility to the present, between Jenny and Kitty or is it between two other opposing forces? I must
asked by Mark on October 20, 2016 
Chemistry
Hello, I would greatly appreciate some help with the following problem, as I'm not sure how to proceed. I'm trying to find solubility (Ksp) of Cu(IO3)2 from titration experiment. The following equations were provided: Cu(IO3)2 > Cu^2+ + 2IO3^ Ksp =
asked by Constantine on July 23, 2014 
Language Arts
Consider the main characters from "Stolen Day" and "The Night The Bed Fell." In a paragraph, discuss which character learns the most and which one learns the least. Use details from the sections to support your ideas. Use the reading selections to help you
asked by ILTHSM_ on October 19, 2018 
physics
43. A block of mass 2.00 kg rests on a ramp tilted at 25.0°. Coefficients of friction for the block/ramp: μs = 0.300, μk = 0.100. A string passing over a high quality pulley connects the block with a bucket as shown below. The bucket contains sand but a
asked by Devin on February 17, 2015 
AP Calculus AB
2. For an object whose velocity in ft/sec is given by v(t) = t^2 + 6, what is its displacement, in feet, on the interval t = 0 to t = 3 secs? 3. Find the velocity, v(t), for an object moving along the xaxis if the acceleration, a(t), is a(t) = cos(t) 
asked by Vikram on March 18, 2016 
math
Two planes leave simultaneously from Chicago's O'Hare Airport, one flying due north and the other due east (see figure). The northbound plane is flying 50 miles per hour faster than the eastbound plane. After 3 hours the planes are 2840 miles apart. Find
asked by Anonymous on February 7, 2019 
Physics
A steel ball of mass 8.0 kg and traveling at 3.0 m/s [E] has a headon elastic collision with a brass ball which is at rest. After the collision, the velocity of the brass ball is 4.0 m/s [E]. Find: a)the velocity of the steel ball after the collision b)
asked by paula on January 13, 2016 
Algebra 1
A company buys a sweater for $14 and marks it up 90%. It later discounts the sweater 25%. A. Find the original selling price of the sweater. B. How much was the discount? C. Found the sale price after the discount. D. The company's profit on the sweater
asked by Jynessa on February 9, 2014 
physics
A 316kg boat is sailing 12.0° north of east at a speed of 1.60 m/s. 39.0 s later, it is sailing 36.0° north of east at a speed of 4.00 m/s. During this time, three forces act on the boat: a 31.4N force directed 12.0° north of east (due to an auxiliary
asked by marissa on September 14, 2012 
AP Physics
Two particles, each of mass m and speed v, travel in opposite directions along parallel lines separated by a distance d. A)Find an expression for the magnitude L of the angular momentum of the twoparticle system around a point midway between the two
asked by Darlene on February 8, 2008 
Physics
A box of mass 1kg is placed on a table and is connected to a hanging mass m by a string strung over a pulley. If the coefficient of kinetic friction between the box and the table is .3 and the box slides at a constant speed of .5m/s what is the weight of
asked by Andrea on November 14, 2007 
Calculus
Sorry this is really long. Just wondering how I would do each of these A particle is moving with velocity v(t) = t^2 – 9t + 18 with distance, s measured in meters, left or right of zero, and t measured in seconds, with t between 0 and 8 seconds
asked by John on February 14, 2016 
Math
Jane is buying squid balls and noodles for her friends.Each cup of noodles costs Php 15 while each stick of squid balls costs Php 10.She only has Php 70 but needs to buy at least 3 stick of squid balls. A. Write a system of linear inequalities to model the
asked by Claire on September 13, 2017 
Chemistry
Part A: Unknown Acid use 1gram and mix with 120 mL of distilled water Determine the concentration of the acid by titrating with 0.0998 M of NaOH Concentration of NaOH= 0.0998M Volume of NaOH= 3.5 mL # moles of NaOH= Initial Concentration of Weak Acid Show
asked by Saira on March 24, 2010 
eth 125
If you're curious, you can see what a search for . Final Project: Race and Your Community ï‚· Resource: Appendix A ï‚· Due Date: Day 7 [Individual] forum ï‚· Prepare a 1,400 to 1,750word autobiographical research paper that analyzes the
asked by patiance on May 9, 2009 
eth 125 culture diversity
• • Select an immigrant group from Ch. 4 of the text. Imagine yourself as a current member of that group, and consider the question, ―Would I want to immigrate to the United States , and why?‖ Think about what opinion you would have of the
asked by Mary on February 20, 2009 
Physical Science
My homework is to do some exercises on the Foucault Pendulum. I'm stuck on several of the problems. One is to find the approximate angle of rotation of the earth in one day at our latititue, which is 39.9. I found the equation n = 360 sin of latitude, but
asked by Beth on September 23, 2007 
Fluid Mechanics
A small rocket motor, fueled with hydrogen and oxygen, is tested on a thrust stand at a simulated altitude of 10 km. The motor is operated at chamber stagnation conditions of 1500 K and 8.0 MPa (gage). The combustion product is water vapor, which may be
asked by Katie on March 22, 2009 
English
I'm posting you the ones I'm most doubtful of. 1) Where can I find a complete list of uncountable nouns in English? 2) What kind of television programmes do you like watching? I like watching current affairs programmes so I can keep up to date with what
asked by Henry2 on November 3, 2011 
Probability
I know I posted this already but no one answered the questions!!!!! **************ANSWER THIS PLEASE!!!! Two students are chosen at random from all 50 students. Find the probability that a) Both students walked b) only one of the students walked 50
asked by Anonymous on March 15, 2014 
Math
18. In 2000, the circulation of a local newspaper was 3,250. In 2001, its circulation was 3,640. In 2002, the circulation was 4,100. a. Find the percent of increase in the newspaper’s circulation from 2000 to 2001 and from 2001 to 2002. b. Which period
asked by Anonymous on December 11, 2018 
PLEASE HELP! PHYSICAL CHEM
The measured osmotic pressure of seawater is 25 atm at 273K. a.) What is the activity of water in seawater at 273 K? Take the partial molar volume of water in seawater to be 0.018 M1. b.) The vapor pressure of pure water at 273 K is 4.6 torr. What is the
asked by Amy on October 14, 2006 
physics
A copper calorimeter of mass ()g contains 380g of a liquid at 12degrees Celsius. A 20W heater is used for 3 minutes to raise the temperature of the liquid and calorimeter to 17 degrees Celsius. The calorimeter has a specific heat capacity of 400 J/K kg
asked by Matteo on March 22, 2012 
Physical Chemistry
The measured osmotic pressure of seawater is 25 atm at 273K. a.) What is the activity of water in seawater at 273 K? Take the partial molar volume of water in seawater to be 0.018 M1. b.) The vapor pressure of pure water at 273 K is 4.6 torr. What is the
asked by Jane on October 12, 2006 
physics 213
A duck has a mass of 2.80 kg. As the duck paddles, a force of 0.120 N acts on it in a direction due east. In addition, the current of the water exerts a force of 0.190 N in a direction of 48.0 ° south of east. When these forces begin to act, the velocity
asked by Erin on February 3, 2012 
The lord of the fliesEnglish
Hey guys. could you please help me out with this? From chapter 12: 1)What does Ralph say to the twins when they refuse to help him? 2)How does the author describe Ralphs flight accross the island? 3)Why does Ralph say that he is in charge of the island? If
asked by Help! on November 21, 2006 
chemistry
HCN is mixed with water. Which is the best description of what you would expect to find in the solution? 1. CN+, OH−, and water molecules 2. HCN molecules and water molecules 3. H2CN+, OH−, and water molecules 4. HCN molecules, H3O+, CN1−, and water
asked by cheri on September 19, 2012 
Chemistry
HCN is mixed with water. Which is the best description of what you would expect to ﬁnd in the solution? 1. CN−, OH−, and water molecules 2. HCN molecules, H3O+, CN1−, and water molecules 3. H2CN+, OH−, and water molecules 4. H3O+, CN−, and
asked by Anonymous on September 29, 2011 
Optimization (Math)
The mayor of a village wants to build a library of which the windows have a shape of a rectangle on top of a square. The total perimeter of each window is of P meters and varies depending on each windows size. Find the dimensions of the windows in terms of
asked by Tommy on November 1, 2011 
American History
Which option most accurately evaluates the process of US expansion in North America from the early to mid19th century? 1) The modernday midwestern states were acquired before the southwestern states. 2)The efforts of Lewis and Clark led to the
asked by Klauus on June 22, 2019 
y921f: Descriptive essay
I cant find the post I intended to add to, so I am here. Descriptive essays take many forms, and you can do much with it. It would do you great advantage to just stop a second and read two of my favorite, by great authors. Each is different, and
asked by bobpursley on October 20, 2009 
algebra 1
Ashley is the manager of a theater. She has $240 to spend on posters to advertise a new play. If she buys small posters only, Ashley can print 48 posters for $240. If she buys large posters only, Ashley can print 30 posters for $240. A. Write an equation
asked by nick on November 29, 2013 
Cornell Notes
Does anyone know how to do Cornell Notes? Thank you for using the Jiskha Homework Help Forum. Here are some sites for you: (Broken Link Removed) http://www.best8sites.org/notes/CornellNotes/78/ where can i find a printable cornell note paper? There is a
asked by John on August 17, 2006 
math
The lenght and the width of a rectangle are in the ratio 3:2. If the lenght is increased by 20 and the width is decreased by 5, the ratio of the lenght to the width becomes 2:1. Find the lenght and width of this rectangle.
asked by mika on September 29, 2010 
Math Help!
Identify the part,whole,and percent in the following statement: Find 15% of 750 A. part=750,whole=n,percent=15 B. part=15, whole=750,percent=p C. Part=n,whole=750,percent=15 D.none of these Is the answer C?
asked by Callie on November 25, 2014 
Physics
1. Two blocks on a frictionless horizontal surface are connected by a light string. The acceleration of gravity is 9.8 m/s^2. Find the acceleration of the system. Answer in units of m/s^2. 2. What is the tension in the string between the blocks? Answer in
asked by Suaad on February 21, 2014 
Maths
There were a some men, women , children in a hall.there 1 1/4 times as many men as women,and the ratio of number of women to the number of children is 8:5.when 105 more children entered the hall, the ratio of men to the children changes to 3:2. find the
asked by Mullai on December 11, 2015 
physics
A student sets up two speakers spaced 2.5 meters apart, each playing the same tone of a single frequency. She stands at point P, at an equal distance from each speaker and hears the tone playing loudly. She walks towards point Q, directly opposite one
asked by elizabeth on March 18, 2012 
College Algebre
Here is the math problem: The height of an object in free fall, or otherwise thrown into the air near the earth's surface, with initial vertical velocity v0 in feet per seconds, and from the initial height h0 in feet, at any given time t in seconds is
asked by Rick on February 8, 2012 
Histroy
Find one difference between the Arizona state constitution and the US Constitution. Explain why you think this difference occurred. One difference that I found between my state constitution (AZ) and the U.S. Constitution is the issue of voting. Things that
asked by acndee on April 3, 2017 
maths probability
In one version of the game Keno the house has a pot containing 80 balls numbered 1 through 80,.the house then selects 20 of the 80 numbers at random . The house randomly selects 20 numbers from the counting numbers 180 .In the variation called 6spot
asked by adiba on August 28, 2012 
math
Could someone double check my answers. 1. Write the number in expanded form 684 answer: (6x100)+(8x10)+(4x1) 2.Give the place value for the indicated digit 8 in the number 138,350 answer: thousands 3. Write the following in the standard form of a number
asked by Kim S. on February 9, 2008 
College Physics
Use the relativistic coordinate transformation (x, y, z, t) − (x′, y′, z′, t′) shown and given below where the latter frame S′, (x′, y′, z′, t′), has a velocity 2.69813 × 108 m/s in the positive direction relative to the frame S, (x,
asked by Angie on April 14, 2010 
PHY 2054
Use the relativistic coordinate transformation (x, y, z, t) − (x′, y′, z′, t′) shown and given below where the latter frame S′, (x′, y′, z′, t′), has a velocity 2.69813 × 108 m/s in the positive direction relative to the frame S, (x,
asked by Angeline on April 13, 2010 
Geometry Inscribed Angles Multiple Choice
Find the measure of angle BAC. {There's an image of a circle with an angle from the top left side going to the bottom of the right side. Point A is the point at the top left side starting the angle, and B is at the bottom and point C is at the bottom right
asked by LeXi<3 on May 17, 2012 
CALC
please help me...for the power series summation of n^4x^n/2(n1)factorial....find the radius and interval of convergence... so far i am guessing that radius is equal to x and interval of convergence is (infinty to positive infinity) is that correct? You
asked by Maria on May 7, 2007 
Math
Find the discriminant for the quadratic equation f(x) = 5x^2  2x + 7 and describe the nature of the roots. discriminant is 144, one real root discriminant is 136, two complex roots
asked by Jass on February 27, 2017 
physics
The flywheel of a motor is connected to the flywheel of an electric generator by a drive belt. The flywheels are of equal size each of radius . While the flywheels are rotating the tension in the upper and lower portions of the drive belt are and
asked by Greco on December 5, 2013 
algebra
the senior class at highschool a and highschool b planned separate trips to the local amusement park the senior class at highschool a rented and filled 5 vans and 8 buses with 357 students highschoolb rented and filled 10 vans and 5 buses with 285 students
asked by bob on June 20, 2012 
Math
Carletta has 23000 dollars to invest. As her financial consultant, you recommend that she invest in Treasury Bills that yield 7%, Treasury Bonds that yield 8%, and corporate bonds that yield 9%. Carletta wants to have an annual income of 1800 dollars, and
asked by julie on September 14, 2015 
physics
A boater wants to head straight across a river that has a current of 3 km/hr. If the top speed of the boat in still water is 4 km/hr. 1.find the direction the boat must travel into the current to go straight across the river? 2. How fast is the boat going
asked by cliff on October 9, 2016 
math
Katrina's ski boots cost 8% more than her skis.Her ski boots cost $162. Whick equation can be used to find the cost, c, of Katrina's skis? a. c + 0.08c =162 b. c + 0.8c = 162 c. c  0.08c = 162 d. c  0.8c = 162 please answer and explain
asked by thomas on April 18, 2014 
Grade 6, percentage
80% of the members in a badminton club were male and the rest were female.after 450 members left the club,the number of male members was decreased by 25% and the number of female members was decreased by 50%.find the mumber of members in the badminton club
asked by Peachie on January 12, 2017 
Math
The variable W represents the width of a rectangle. The length of the rectangle, L, is 5 less than twice the width. Write an expression for the length of the rectangle in terms of W. Write a simplified expression for the perimeter of the rectangle in terms
asked by Unknown on November 16, 2013 
physics
As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 9.8%. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the
asked by Natasha on February 11, 2012 
Physics
As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 47.9%. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the
asked by Ryan C. on September 23, 2012 
math
Don chooses a positive integer less than 11 which he calls a and an integer b such that 11
asked by Lone on August 27, 2018 
algebra
Find the slope of the line through the given points. (2,4) (6,3). m=y2y1 over x2x1. (3)(4) over(6)(2) 34 over 62 7 over 4. I plotted the two coordinates (2,4) (6)(3), and the slope is 7 over 4, right? How do you plot the slope? I think you
asked by peggy on January 26, 2007 
physics
As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 9.8%. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the
asked by Natasha on February 9, 2012 
Math
Let S = {Barnsley, Manchester United, Southend, Sheffield United, Liverpool, Maroka Swallows, Witbank Aces, Royal Tigers} be a universal set, A = {Southend, Liverpool, Maroka Swallows, Royal Tigers}, and B = {Barnsley, Manchester United, Southend}. Find
asked by Rachel on March 26, 2009 
Physics
The freefall acceleration on Mars is 3.7 m/s2. (a) What length pendulum has a period of 4 s on the earth? cm What length pendulum would have a 4 s period on Mars? cm (b) A mass is suspended from a spring with force constant 10 N/m. Find the mass suspended
asked by Albert on December 5, 2010 
algebra
a jeweler purchased 5 oz of a gold alloy and 20 oz of a silver alloy for a total cost of $540. The next day at the same price per ounce, the jeweler purchased 4 oz of th egold alloy and 25 oz of the silver alloy for a total cost of $450. Find the cost per
asked by julie on April 29, 2011 
Physics
As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 28.2 %. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the
asked by Danielle on October 15, 2012 
MathAlgebra
(Engineering) The current / varies as the electromotive force E and inversely as the resistance R. If in a system, a current of 20A flows through a resistance of 20 ohms with an electromotive force of 100V, find the currect that 150V will send throu+gh the
asked by McKenna Louise on December 18, 2013 
Business Mathematics
Jungle Jim owes three debts: $500 due in one year plus interest at 6% semiannually, $2000 due in two years, $1000 due in three years plus interest at 5% compounded monthly. He wishes to discharge these debts by paying $500 now and two equal but unknown
asked by Leo on June 24, 2013 
Calculus
I actually have two questions: 4. An open box is to be made from a rectangular piece of material 3m by 2m by cutting a congruent square from each corner and folding up the sides. What are the dimensions of the box of the largest volume made this way, and
asked by Anonymous on May 18, 2010 
ONE math question! Check please, thank you!
6) 108 is 36% of what number? Write and solve a proportion to solve the problem. Step 1. First, I will write the proportion to find the missing value, which I will replace it with n. 108/n = 36/100 Step 2. Next, I will write the cross products. So, 36n =
asked by Lizzie on February 1, 2016 
Math
In a class of 550 students, students may take all, none, or a combination of courses as follows.? Draw a Venn diagram to find how many students are not in any of these courses. Mathematics280 Science200 Technology230 Mathematics and Technology110
asked by Angie on June 9, 2009
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