Friday

March 27, 2015

March 27, 2015

Number of results: 54,844

**science....help**

thanks ....is it like... 25g 50ml float 0.5 65g 40ml float 1.625 36g 35ml float 1.0285 and ya 1 more question what is the difference between mass and weight?
*September 21, 2008 by ashlee*

**physics**

a cube of side L is made of a substance that is 1/4 as dense as water. WHen placed in a calm water bath the cube will a) float with 1/2 L abovethe surface b)sink to the bottom, c) float with 1/4 L above the surface d) float with 1/4 L below the surface e) float with 31/4
*January 8, 2012 by anna*

**Physics. Please help**

Considering the nature of a water wave , describe the motion of a fishing float on the surface of a lake when a wave passes beneath the float. Is it really correct to say that the float bobs straight "up and down"? Explain.
*May 7, 2007 by Blessed*

**Corporate Finance**

Calculating Float. You have $13,200 on deposit with no outstanding checks or uncleared deposits. If you deposit a check for $4,800, does this create a disbursement float or a collection float? What is your available balance? Book balance?
*November 25, 2012 by Susanne*

**2nd grade**

Do people sink or float Why
*March 3, 2010 by Addi*

**physics**

Your engineering firm is asked to specify the maximum load for the elevators in a new building. Each elevator has mass 500 kg when empty and maximum acceleration 2.25 m/s^2. The elevator cables can withstand a maximum tension of 19.6 kN before breaking. For safety, you need to...
*October 14, 2011 by mera*

**Physics**

The mass of the float is 50.0 kh and it has a volume of 1.0 m^3.det ermine the density of the float and the tension on the rope. You may assume g=10N/kg. So I know that mfloat = 50.0kg weight of float = 50.0 x 10 = 500N Vfloat = 1.0 m^3 density of Sea water = 1000kg/m^3 D=m/v...
*October 5, 2013 by Herbert*

**Physics**

An escalator in a department store is driven by a large electric motor whose power consumption changes with the load to keep the escalator moving at a constance velocity, up to a certain maximum power capacity. An escalator working at 0.22 of its maximum power capacity lifts ...
*April 18, 2011 by micky*

**gr9 science**

a bar of steel has a mass of 277 g and a volume of 35.5 cm3. What is the density of the bar?Will it float in water?Will it float in mercury? could u please help me with this question?:)
*September 23, 2009 by beccaa*

**physics (easy)**

Will a 7.25 kg ball with a diamter of 22 cm float in water? I know that the radius is 11 cm and that the density of water is 1000kg/m^3 and I got that it will float but it just doesn't sound right. Could anyone help please?
*December 6, 2010 by Alona*

**math**

The freshman class is building a float for homecoming.One side of the float has a shape of a parallelogram with base of 12' and height of 6'. To complete the float the class must buy tissue to cover the side. It takes 3 boxes of tissue to cover each foot. If each box costs $ 0...
*April 4, 2011 by corey*

**programming**

write a program of a main module and three other modules. The owners of the Super Supermarket would like to have a program that computes the monthly gross pay of their employees as well as the employees net pay. The input for this program is an employee ID number, hourly rate...
*July 21, 2014 by aurelia*

**Spanish **

Spanish Help Me Plz!!^__^ _________ 1. La Marcha _________ 2. La Cruz de Gua _________ 3. La Bulla _________ 4. Los Nazarenos _________ 5. El Paso del Cristo _________ 6. Los Penitentes _________ 7. El Paso Palio a. crowds of people b. the members of the fraternity, who ...
*May 21, 2014 by Rose*

**computer science**

The owner of the super supermarket would like to have a program that computers the monthly gross pay of their employees as well as the employee's net pay. The input for this program is an employee ID number, hourly rate of pay, and number of regular and overtime hours worked. ...
*April 25, 2012 by Anonymous*

**physics**

Which of the following objects will float in a tub of mercury? a. a solid gold bead b. an ice cube c. an iron bolt d. 5 mL of water The three less dense materials will float on mercury. Look up the density of all four.
*May 8, 2007 by Anonymous*

**Physical Science**

A 200-L iron tank has a mass of 36 kg. a) Will it float on seawater if empty? b) What mass of potatoes could be added such that the tank would still float? [Note: 1000 L = 1 m3 ]
*February 21, 2012 by Jessica*

**science plzzz help**

1 what si the diference between mass and weight? 2 will the following substances float or sink in water at 3.98 degree celcius? Mass volume float & sink 25g 50ml ? 65g 40ml ? 36g 35ml ?
*September 21, 2008 by ashlee*

**chemistry**

In the macy's thanksgivingday parade, 2000, there was a new float, the cheerios'bee, buzbee. the jar of honey it was holding contained 36,763L of helium. the honey jar was 1/10 of the body size. What is the volume of the entire float?
*June 28, 2012 by Leslie*

**Science**

A plastic block has sides that measure 4 centimeters, 2 centimeters, and 3 centimeters. Its mass is 19.2 grams. Predict whether the block will float in water. Will it float in olive oil?
*April 20, 2010 by RJ*

**International Business: Please Check Answer**

Hi, Please help me! I need to know is these is the correct answer for these questions. Thanks for your help! Some countries try to hold the value of their currency within some range against an important reference currency. This is referred to as what? a. A dirty-float system. ...
*November 18, 2014 by Brandy*

**math**

The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $960/person/day if exactly 20 people sign up for the cruise. However, if more than 20 people sign up (up to the maximum capacity of 100) for the cruise, then each fare is reduced by $8 for each ...
*November 14, 2012 by Britney*

**Science**

If salt is added to water, then an egg will flot. This is because when people go to the sea, it is generally much easier to float in than it is if people go to the pool. I need more background info on bouyancy, salinity, and density to make my "because" section of my ...
*August 5, 2010 by Anonymous*

**math**

A town of 1200 people has "fan-out" system for emergencies. In an emergency the mayor phone two people. in the next minute each of these people phone two other people . the pattern continues until all 1200 people are contacted. complete yhe tableand determine how many minutes ...
*October 18, 2009 by shaila*

**Science**

if an aluminum cube has a mass of 20g and the length of each side was 2 cm, between what two liquids would it float?
*September 27, 2012 by Anonymous*

**Math**

Planner for a festival is trying to decide what to charge for ticket prices. Based on sampling they determine that if they charge $400 for a weekend pass, 40000 people will attend. However it has been pointed out to them that for each $10 reduction in price 4000 more people ...
*January 18, 2015 by Leonora*

**science**

If and iron block had a lenght of 2 cm, a width of 3 cm, and a height of 1 cm and a mass of 33 g between what two liquids would it float?
*April 21, 2014 by Anonymous*

**Stats**

3. Suppose you work for the Ford Motor Company and must establish regulations concerning the maximum number of people who can ride in a minivan. Ford tells you that the total number of people in a minivan follows a normal distribution with a mean of 6 and a standard deviation ...
*August 4, 2012 by AMbe*

**physics**

Two parallel narrow slits are at a distance of 0.840 mm apart. Each of them has a width of 0.140 mm. The double slit is illuminated with parallel light of wavelength 546.1 nm. (a) Find the ratio of the intensity of the central maximum to that of its adjacent maximum. (1 : 0....
*May 8, 2013 by mattheaus*

**physics**

Two parallel narrow slits are at a distance of 0.840 mm apart. Each of them has a width of 0.140 mm. The double slit is illuminated with parallel light of wavelength 546.1 nm. (a) Find the ratio of the intensity of the central maximum to that of its adjacent maximum. (1 : 0....
*May 8, 2013 by mattheaus*

**science**

1) what is the mass of 10 cc of water? 2) why does a block of wood float on water? 3)how and why can density by used to identify an unknown substance? 4) describe the relationship between density, water, an d things that float please help me just need these answers to study ...
*June 17, 2009 by matt*

**Chemistry**

In ionic bonding, an electron is transferred from one nucleus to another. What I don't understand, is how this "bonds" the two atoms together. Why don't the two atoms just bounce away and float off after the electron transfer takes place?
*September 7, 2009 by Alex*

**Physics**

Suppose a straight 1.25 mm diameter copper wire could just "float" horizontally in air because of the force of the Earth's magnetic field B, which is horizontal, perpendicular to the wire, and of magnitude 5.00 multiplied by 10-5 T. What current would the wire carry? I want to...
*February 10, 2011 by Justin*

**Physics**

19. Two people of unequal mass are initially standing still on the ice with negligible friction. They then simultaneously push each other horizontally. Afterward, which of the following is true? * -The center of mass of the two person system moves in the direction of the less ...
*January 26, 2015 by Lexie*

**physical science**

when items float freely inside a space capsule, is it an example of Newton's law #1 or #3? As soon as the astronauts take off their helmets and gloves (after lift-off) in Apollo 13, the gloves float away. So is that an object in motion tends to stay in motion OR every action ...
*January 2, 2011 by anonymous*

**Physical Science**

When will an object float on a fluid's surface? My answer: An object will float on a fluid's surface if only the object is less dense than the fluid?
*April 21, 2013 by Anonymous*

**math**

You are having a pool party and invite 2 of your best friends. These two friends each invite two other people. Each of these 2 people invite 2 people that haven't been invited. How many people will be invited if this process continues for four rounds?
*March 31, 2009 by Alice*

**math 9**

in a park some people are launching model rockets to find the maximum height,x,the rocket reaches, a person stands 50.0m from the launch sight and measure the angle from the ground to the rocket at its maximum height. if the angle is 36 then the maximum height,x, of rocket is...
*June 17, 2010 by steph*

**SEKGOSESE**

2 forces of 5N and 7N respectively act on an object.a)When will the resultant of two vectors at a maximum?b)when will the resultant of the two vectors be at a minimum?c)What are the maximum and minimum resultants of the two forces?d)Draw a diagram to show the maximum and ...
*March 25, 2014 by COSMOS*

**Physics**

Because gasoline is less dense than water, drums containing gasoline will float in water. Suppose a 220- L steel drum is completely full of gasoline. What total volume of steel can be used in making the drum if the gasoline-filled drum is to float in fresh water?
*October 28, 2010 by Hee*

**Stats**

An airline estimates that 91% of people booked on their flights actually show up. If the airline books 80 people on a flight for which the maximum number is 78, what is the probability that hte number of people who show up will exceed the capacity of the plane?
*October 12, 2011 by Kim Reed*

**statistics**

an airline estimates that 97%of people booked on their flights actually show up.if the airline books 70 people on a flight for which the maximum number is 68,what is the probability that the number of people who show up will exceed the capacity of theplane
*December 5, 2009 by lauren*

**Science**

When will an object float on a fluid's surface? My answer: An object will float on a fluid's surface if only the object is less dense than the fluid?
*April 21, 2013 by Anonymous*

**Physics(Please help)**

What characteristic of water would you be investigating when you place a small drop of water on wax paper and when you try to float a paper clip in water? I know that the paper clip does not float and that the drop of water rolls around on the paper.
*March 4, 2010 by Janet*

**physics**

Two children float motionlessly in a space station. The 20-kg girl pushes on the 40-kg boy and he sails away at 1.0m/s. What happens to the girl?
*October 11, 2011 by Anonymous*

**Physics**

What characteristic of water would you be investigating when you place a small drop of water on wax paper and when you try to float a paper clip in water? I know that the paper clip does not float and that the drop of water rolls around on the paper.
*March 4, 2010 by Janet*

**HISTORY**

Choose two famous Americans who lived during the period 18201860. Research the two people you chose. Analyze your research. Write a dialogue between the two famous Americans Can somebody help me with this? * Give me ideas for people * Research on the people * Ideas for ...
*March 12, 2015 by Lydia*

**Technology**

Please help me on this: Explain in some detail two ways that technology has made your life better. i have to write my own and then ask two other people. so i will wait for two people to answer it from their point of view thanks a lot
*October 30, 2009 by y912f*

**English**

Please check for any errors and correct them for me. Enclosed is the information you requested concerning our float trips down the Colorado River in the Grand Canyon. All departure dates and prices for the various trips are listed in our booklet. At this time the trips leaving...
*February 16, 2011 by Angie*

**physical sciences **

Two forces of 5n and 7N respectively act on an object. (A)when will the resultant of the two vectors be at a maximum? (B)when will the resultant of the two vectors be at a minimum? (C)when are the maximum and minimum resultantof the two forces?
*January 16, 2014 by fortunate *

**Math**

An unusual die has six faces labelled 1,2,3,5,7 9. If two of these dice are rolled, and the numbers showing on the upper faces are added, what is the number of possible different sums? 14? Flora had an average of 56% on her first 7 exams. What would she have to make on her ...
*March 29, 2012 by Rezu*

**physics**

An elavater m=800kg has a maximum load of 8 people of 600kg. The elevatorgoes up to 10 stories = 30m at a costant speed of 4m/s. what is the average power output of the elevater motor if the elevater is fully loaded with its maximum weight? (neglect friction)
*July 14, 2011 by Noemi*

**physics**

two spherical boys float half some edge in a calm deep sea their radius a, is very much small er than their separation b, calculate the resistance between them If the resistivity of the is rho water
*October 16, 2014 by Adewumi*

**math**

Dress rehearsal of the play was attended by 142 people. Opening night was attened by 238 people. How many people saw the two shows in all?
*October 2, 2012 by Janiya*

**Accounting**

Float Management: Merrill Lynch increased in float by mailing checks drawn on West Coast banks to customers in the east and checks drawn on east coast banks to customers in the west. A subsequent class action suit agains Merrill Lynch revealed that in 28 months from September ...
*September 11, 2007 by Roger*

**science**

Hi. I am conducting a science experiment to present to a class. Details of experiment below. Materials: 1 can of non-diet soda 1 can of diet soda 2 buckets of water 1. Fill bucket 2. Put can of non-diet soda into a bucket of water. 3. Wait for the can to either sink or float. ...
*November 28, 2010 by Guy*

**Physics Homework**

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 Ok, so if the box is put in the ...
*November 13, 2010 by Jael*

**PROBABILITY**

R. H. Bruskin Associates Market Research found that 40% of Americans do not think that having a college education is important to succeed in the business world. If a random sample of five Americans is s selected, find these probabilities. (a) Exactly two people will agree with...
*September 21, 2011 by FAKAAPO*

**math**

R. H. Bruskin Associates Market Research found that 30% of Americans do not think that having a college education is important to succeed in the business world. If a random sample of five Americans is s selected, find these probabilities. (a) Exactly two people will agree with...
*June 20, 2013 by robin*

**Calc 3**

If a function of one variable is continuous on an interval and has only one critical number, then a local maximum has to be an absolute maximum. But this is not true for functions of two variables. Show that the function f(x,y)= 3xe^y − x^3 − e^(3y )has exactly one...
*October 1, 2012 by Becky*

**chemistry**

Sodium metal adopts a body-centered cubic structure with a density of 0.97g/cm3. A. Use this information and Avogadro's number to estimate the atomic radius of sodium. B. If it didn't react so vigorously, sodium could float on water. Use the answer from part a to estimate the ...
*April 3, 2014 by Liz*

**chemistry**

Sodium metal adopts a body-centered cubic structure with a density of 0.97g/cm3. A. Use this information and Avogadro's number to estimate the atomic radius of sodium. B. If it didn't react so vigorously, sodium could float on water. Use the answer from part a to estimate the ...
*April 3, 2014 by Anonymous*

**physical sciences **

Two forces of 5N and 7N respectively act on an object. (A)when will the resultant of the two vectors be at a maximum? (B)when will the resultant of the two vectors be at a minimum? (C)what are the maximum and minimum resultant of the two forces?
*January 16, 2014 by fortunate *

**Computer Programming**

/* Develop a C program that will determine if a department store customer has exceeded the credit limit on a charge account. For each customer, the following facts are available: a) account number b) Balance at the beginning of the month c) Total of all items charged by this ...
*November 22, 2009 by Claire*

**physics**

Two slits are separated by 0.18 mm. An interference pattern is formed on a screen 80 cm away by 656.3-nm light. Calculate the fraction of the maximum intensity 0.6 cm above the central maximum.
*December 6, 2011 by kuikui*

**physics**

Two people are holding up the ends of a 4.40-kg wooden board that is l = 1.60 m long. A m = 7.00-kg box sits on the board, 0.50 m from one end, as shown below. What forces do the two people exert?
*January 2, 2013 by Jamison*

**Physics**

Two people are holding up the ends of a 4.40-kg wooden board that is l = 1.95 m long. A m = 2.00-kg box sits on the board, 0.50 m from one end, as shown below. What forces do the two people exert?
*February 12, 2015 by Maria*

**calculus**

Find the points at which y = f(x) = 5x−ln(5x) has a global maximum, a global minimum, and a local, non-global maximum on the interval .1 ≤ x ≤ 2. Round your answers to two decimal places. Global Minimum: (x,y) = (,) Global Maximum: (x,y) = (,) Local, Non-...
*November 1, 2010 by Erika*

**Math**

Dress rehearsal of the play was attended by 142 people. Opening night was attended by 238 people. How many people saw the two shows in all?
*January 30, 2013 by Shaun*

**Stats help**

Which test should be used one samples t test, independent samples t test or dependent samples t test. What do you set the hypothesis as Five people who were convicted of speeding were ordered by the court to attend a workshop. A special device put into their cars kept records ...
*March 13, 2013 by Anonymous*

**Science**

1) A piece of paraffin wax has a density of 9g/cm3, mass of 900g, and a volume of 100cm3. If the wax was melted to the liquid state, approximately what would it's volume be? Would this wax float or sink in water? Explain. 2) A tin box ( Mass of 80g, Volume of 100cm3, and ...
*March 8, 2011 by Alisha*

**science linear equation**

A theater is presenting a program on drinking and driving for students and their parents. The proceeds will be donated to a local alcohol information center. Admission is $18 for parents and $9 for students. However, this situation has two constraints: The theater can hold no ...
*October 25, 2013 by Duke*

**math**

the museum charges $20 dollars for two people. and 28 for three people what is the equation that realtes the number of people in a group and the cost to enter a museum? write it in slope intercept form
*March 12, 2012 by bogalusa high*

**Abnormal Psychology**

Joint social attention refers to the ability to A. communicate with two people at the same time. B. coordinate ones focus of attention on another person and an object of mutual interest. C. hold a conversation on two different topics. D. pay attention to the conversation that...
*October 20, 2012 by Felicia*

**math**

The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $630 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare is reduced by $5 per...
*September 21, 2012 by Anastasia*

**math**

The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $630 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare is reduced by $4 per...
*September 13, 2013 by Anonymous*

**Maths**

There are two boxplots, 1 of class A and the other of class B. they both illustrate the height of sunflowers grown in metres. Class A : minimum is 0.9 m, Q3 is 2 m Q1 is 1.5 m ,maximum is 2.8 m Median is 1.9 m Class B : minimum is 1.5 m, Q3 is 2.3 Q1 is 1.8 m, maximum is 2.5 m...
*June 9, 2007 by T*

**stats**

use dependent samples t test. Set hypothesis so what formula will I use to solve Five people who were convicted of speeding were ordered by the court to attend a workshop. A special device put into their cars kept records of their speeds for two weeks before and after the ...
*March 13, 2013 by Anonymous*

**math**

the smallest number of people in a room where the probability of two of them having the same birthday is at least fifty percent Please post under one name. The smallest class where the chance of finding two people with the same birthday is 50% or more is... a class of 23 ...
*May 25, 2007 by Jenny*

**math**

The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $430 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare is reduced by $4 per...
*February 13, 2013 by joy*

**math**

The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $430 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare is reduced by $4 per...
*February 24, 2013 by Shannon*

**math**

The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $430 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare is reduced by $4 per...
*February 26, 2013 by Ashton*

**Math**

The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $430 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare is reduced by $4 per...
*February 26, 2013 by Selena (Please Help)*

**Math **

Use the following information to determine the number of people in each region of the Venn Diagram 174 people were asked which of these instruments that they could play: Piano, Drums, or Guitar. 33 people could play none of these instruments. 9 people could play all three of ...
*October 10, 2012 by Shyanne*

**algebra**

An amusement park charges $8 admission and average of 2000 visitors per day. A survey shows that , for each $1 increase in the admission cost, 100 fewer people would visit the park. Write an equation to express the revenue, R(x) dollars, in terms of a price increase of x ...
*March 18, 2015 by henry*

**11 grade physics**

The maximum tension a rope can withstand is 60kgwt. The ratio of maximum acceleration with which two boys of masses 20 kg and 30 kg can climb up the rope at the same time is:
*May 24, 2011 by sreekanth*

**Please help-English**

As both products are good,order the _______ one from the_______ competent of the two clerks. cheaper, more cheapest, most cheaper, most cheapest more When comparing two things or two people, use -er or more. Both of your comparisons in this sentence require the comparative ...
*October 15, 2006 by Kallie------*

**C code**

//INSTRUCTIONS //Your parser will read from input.txt //input.txt consists of a series inputs that you need to read. //each input is proceeded by a flag. //Each flag will be either I,C, or F. //I means int C means char F means float. //So for example //I 7963467 //means int ...
*February 13, 2013 by Nick*

**Probability **

4,915 people were surveyed about their recent purchases. 1,027 of those people surveyed bought a lawn mower within the last year, 918 bought a snow blower within the last year, and 3,387 didnt buy either of the two. a) How many people bought a lawn mower and a snow blower? b...
*January 30, 2012 by Nick*

**Computers C++**

1). After the assignment statement result = isspace('\t'); result has the value ________. 2). The data type of islower('g') is ________. 3). What will be output given the following information: float * pointer; float pay = 3.75; pointer = &pay; cout << &pointer; A. 3.75 ...
*July 14, 2013 by Keith*

**Math(Urgent)**

Compute the maximum product for two positive numbers x and y with the property that the sum of the first plus five times the second is 5000. 1) Indicate the objective equation 2) Indicate the constraint equation So the objective = f(x)=xy and the constraint = x+5y=5000 Now ...
*February 27, 2011 by Hannah*

**Math**

six people can sit in one table that is rectangular when two tables are placed together ten people can be seated how many people can be seated with three tables?
*May 21, 2014 by Samukelo Mlambo*

**Physics**

Two thin slits with separation of .0250mm are placed over monochromatic orange laser light at 610.nm. What is the small angle measurement from the central maximum (zero degrees, inline with the source) to the first maximum?
*October 27, 2014 by Eiban*

**English**

I need some help on figuring out the main idea of "The Adventures of Huckleberry Finn." I know that for most of the part, Huck and Jim float on a raft down the Mississippi River and on the way, they encounter many people and obstacles. At the end of the novel, Finn is also ...
*September 19, 2013 by Anonymous*

**Social Studies 7R (plz help) **

Indentify two colonies founded by people seeking religious freedom. The two colonies founded by people seeking religious freedom is Massachusetts Plymouth (1620) and Rhode Island (1636). The problem is that what do they mean Indentify two colonies founded by people seeking ...
*December 22, 2011 by Lauren *

**Math**

If 3 people are asked what day of the week they were born, find the probability that i) 2 or 3 are the same. ii) only 2 people are the same. - is this 1/7 x 1/7 ?? If 4 people are asked what day of the week they were born, what is the probability that 2 or more people were ...
*February 22, 2010 by Maria*

**science**

where do electrons float
*January 6, 2010 by Katherine*

**Business: Help Is Needed ASAP**

Help Is Needed ASAP Hi, Please help me! I need to know is these is the correct answer for these questions. Thanks for your help! Some countries try to hold the value of their currency within some range against an important reference currency. This is referred to as what? a. A ...
*November 17, 2014 by Brandy*

**Calculus**

Assume the world population will continue to grow exponentially with a growth constant (corresponding to a doubling time of about 52 years), it takes acre of land to supply food for one person, and there are 13,500,000 square miles of arable land in in the world. How long will...
*October 13, 2011 by Isiah*

**Physics- Elena please help!**

Two blocks each of mass 3.38 kg are fastened to the top of an elevator as in the figure. (b) If the strings can withstand a maximum tension of 87.8 N, what maximum acceleration can the elevator have before the first string breaks?
*October 3, 2012 by Megan*

**physics**

An object is thrown vertically upward such that it has a speed of 56 m/s when it reaches two thirds of its maximum height above the launch point. Find the maximum height h. The acceleration of gravity is 9.8 m/s 2 . Answer in units of m
*December 21, 2012 by Anonymous*

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