Sunday

July 5, 2015

July 5, 2015

Total # Posts: 893

**Science**

If you have a 500 mL of a 0.4M Nacl solution. How much water is needed to make is 0.1M solution?
*May 7, 2012*

**math**

Maria drives 69 mph and Ming drives 60 mph. How far apart will they be in 3 hours?
*April 19, 2012*

**Math**

A bag contains 5red balls and 4 white balls. Two balls are drawn at random from the bag. The first ball drawn is put back into the bag before the second ball is drawn. What is the probability that the two balls drawn are both red?
*April 16, 2012*

**Physics 100**

A 355-g piece of metal at 48.0 degree celsius is dropped into 111g of water at 15.0 degree celsius.If the final temperature of the mixture is 32.5 degree celsius what is the specific heat of the metal?
*April 16, 2012*

**physics**

waves propagate down a 25 gram string at 35 m/s. If the string has a length of 1.5 meters, what is the magnitude of the tension acting on it?
*April 16, 2012*

**Chemistry**

How many moles of ammonium sulfate were released in 25.3 kg?
*April 11, 2012*

**math**

Sharon brought 12 apples to the picnic. After the picnic, 2 apples were left. What fraction of the apples were eaten.
*April 10, 2012*

**us history**

Why did nonviolence prove to be a successful strategy for confronting segregation?
*April 4, 2012*

**UNIVERSITY OF PHONEX**

x=5-7 need to find the order pairs for this equation.
*March 26, 2012*

**math**

Meera arrived at her grandmother's house at 8:00 a.m. First they made cookies. At 10:00 a.m. they played tennis. At 12:30 p.m. they mde sandwiches. At 12:45 they ate the sandwiches and the cookies. How much time did Meera and her grandmother spend making food?
*March 19, 2012*

**math**

A seismograph 300km from the epicenter of an earthquake recorded a maximum amplitude of 5.8*10^2lrm, find this earthquake's magnitude on the RicHTER scale to the nearest tenth.
*March 12, 2012*

**Business communication**

I have to revise these sentences as if speaking to a 10th grade level in education. Can you tell me if these are correct: 1. We must terminate all deficit financing. Revision: We need to end all debts. 2. We must endeavor to correct this problem by expediting delivery. ...
*March 5, 2012*

**math**

thank you
*March 3, 2012*

**math**

a football player can run 20 yards in 3.4 seconds. write an equation to find y, the number of yards the football player can run in a second? i can't seem to figure this one out??
*March 3, 2012*

**math**

thank you!!
*March 3, 2012*

**math **

ok so now i have to write an equation for the following: two more than the number of frogs is 4. i think it is f+2=4 am i right?
*March 3, 2012*

**math**

thank you that is what i put, just wanted to be sure:)
*March 3, 2012*

**math**

help please!!! how do i write this as an algebraic expression: ten dollars more than grace has
*March 3, 2012*

**Chemistry**

A block of copper at 100 degrees Celsius comes in contact with a block of aluminum at 20 degrees Celsius. The final temp of the blocks is 60 degrees Celsius. What are the relative masses of the blocks?
*March 1, 2012*

**MATH**

ELLE IS MAKING A PATTERN.SHE IS USING RECTANGLES 1 CENTIMETER WIDE AND 2 CENTIMETERS TALL. WHAT WILL BE THE PERIMETER OF THE SIXTH SHAPE IN THE PATTERN?
*February 29, 2012*

**e-Commerce**

If I opened a business and was offered $1,000, should I sell or not? why? Cite the ethical dilemmas.
*February 22, 2012*

**Math**

15/8z+1/4=4 Please help me solve and show how you did it. Thanks
*February 11, 2012*

**Math**

a rectangular family room has 204 square feet of it takes 1 3/8 yards of material to make one shirt. how many shirts can be made from 16 1/2 yards of material? 1.1 2.3 3.6 4.12 5.24
*February 9, 2012*

**geometry**

If I want to cover a wall that is 10ft long by 3 ft high with 4"x4" tiles how many tiles do I need?
*February 8, 2012*

**Public Health**

Definately NOT ethical! Wow.
*February 5, 2012*

**physics**

Suppose that a senior driving a Pontiac zooms out of a darkened tunnel at 31.0 m/s. She is momentarily blinded by the sunshine. When she recovers, she sees that she is fast overtaking a bus ahead in her lane moving at the slower speed of 15.7 m/s. She hits the brakes as fast ...
*February 1, 2012*

**physics**

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 31.0 m above sea level, directed at an angle theta = 48.5° above the horizontal, and with a speed v = 35.6 m/s. Assuming that air friction ...
*February 1, 2012*

**Science**

An experiment always starts with: data collection or theory or group selection or randomization. I have you ask a question then do background research....so does that mean the answer to the question would be data collection? Sorry
*January 21, 2012*

**maths **

one bag contains 1 red ball,1 yellow ball, 1green ball and 1 blue ball the second bag contains 1 pink ball and 1 grey ball what is the sample space out come
*January 19, 2012*

**4th math**

whats the answer?
*January 11, 2012*

**4th math**

can you help me with this problem,? here is the number of lunches served last week at a school. 234,234,245,250,255. I already got the median is 245 set and Mode is 234 set. what do you think will be the next number of lunches serves?--- why?-----
*January 11, 2012*

**Sociology**

Can you help me relate what I call dangerous dogs, specifically, like dogs who attack other dogs on a walk and then go on to attack the person walking the dog to the 3 sociological perspectives: functionalism, conflict and interactionism Please if you can just get me started ...
*January 2, 2012*

**anatomy and physiology**

the wide band of fibers that sep[arates the two hemispheres of the cerebrum is called the? 1 choroid plexus,2 central fissure ,3 cerebral aqueduct or 4 corpus callosum
*December 27, 2011*

**university of phoenix**

Does lovastatin (a cholesterol-lowering drug) reduce the risk of heart attack? In a Texas study, researchers gave lovastatin to 2,325 people and an inactive substitute to 2,081 people (average age 58). After 5 years, 57 of the lovastatin group had suffered a heart attack, ...
*December 19, 2011*

**university phoenix **

In Dallas, some fire trucks were painted yellow (instead of red) to heighten their visibility. During a test period, the fleet of red fire trucks made 153,348 runs and had 20 accidents, while the fleet of yellow fire trucks made 135,035 runs and had 4 accidents. At α = ....
*December 19, 2011*

**algebra**

List all possible or potential rational zeros for the polynomial below find all real zeros of the polynomial below and factor completely over the real numbers. f(x) x^4 + 10x^3 + 12x^2 - 58x + 35 Someone anyone?????
*December 9, 2011*

**algebra**

what does the question mark mean????
*December 9, 2011*

**algebra**

find all complex zeros for the following polynomial function please show all your work f(x) = x^3 - 125 ????????
*December 9, 2011*

**algebra**

Thank you I think I understand it better with Bob's answer.
*December 9, 2011*

**PSY**

thank you sorry to have bothered you.
*December 5, 2011*

**PSY**

I have a research paper due tonite at mid-nite and need to know if you have previous research on this paper.My son was hospitalized and i have been unable to complete the assignment....
*December 5, 2011*

**PSY**

ocus of the Research Paper Carefully review the scenario below: Susan and Molly, employees in a busy call center, are chatting at lunch. Between bites of fried chicken, French fries, high calorie soda, and a tiny salad, Susan begins to complain to Molly that she can’t ...
*December 5, 2011*

**logic**

is not the most important factor they consider when compairing two films
*December 2, 2011*

**calculus**

Find an antiderivative G of g(x)=1/x^4
*December 2, 2011*

**Math**

Thank you for tour help we thought there was only one correct answer..
*November 29, 2011*

**Math**

Ms.Dixon sees more than 119 birds but fewer than 132 birds. How many birds might she have seen?
*November 29, 2011*

**milford**

Suppose that a man throws a ball from the front of a train that is moving at 100 km/hr. If he throws the ball forward at 10 km/hr, what is the speed apparent to the man?
*November 29, 2011*

**ALGEBRA**

1/12
*November 27, 2011*

**phi 103**

What r the answer to these 10 questions
*November 26, 2011*

**Grammar**

Because subtle changes can reveal future abnormalities. Is this a sentence fragment?
*November 23, 2011*

**Chemistry**

The heat capacity of liquid water is 4.18 J/g·°C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67°C into 1.00 g of steam at 100°C?
*November 13, 2011*

**Math**

What is the rule for this function table? Input 3. 5 11 Output 13 21 45
*November 12, 2011*

**Math**

A floor-finishing machine uses bars of wax. Once the bar is worn down to 1/2 its original size, it must be replaced with a new bar. Only full-size bars can be put in the machine. The pieces are melted and recycled to make full-size bars. If you buy 24 bars and recycle all the ...
*November 10, 2011*

**Science **

Thanks
*November 8, 2011*

**Science **

Are all tornadoes cyclones. I have read many sites some say they are others say no. Can someone give me an accurate site please
*November 8, 2011*

**Algebra**

Evaluate the expression 3x2y when x = 3 and y = 5.
*November 8, 2011*

**statistics**

a firm has 10 sales reps. In how many ways can they be assigned to two territories, with 7 reps in one territory and 3 in the other?
*November 2, 2011*

**huma215-1104A-04**

what would a decentering of culture have meant for a given culture group?
*October 30, 2011*

**General**

Thanks
*October 29, 2011*

**General**

Thanks Ms. Sue but was my answer correct?
*October 29, 2011*

**General**

The more I read I'm getting confused. Just want to make sure. Winds that pass through an upper level trough go counter-clockwise in the Northern Hemi & clockwise in the Southern Hemi, right?? Thanks
*October 29, 2011*

**Science**

If someone could check my answer: Dynamic lows are accentuated due to the fact that they rotate in the same direction as the Earth's surface (Cyclonic flow). This is called-----CORIOLIS EFFECT....Thanks
*October 24, 2011*

**Super Easy Math Question**

4x+y=12 6x+8y=8
*October 19, 2011*

**Statistics: Percentile Rank**

A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day. The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal. A. What proportion of students drank 7 or more cups of ...
*October 18, 2011*

**Algebra**

How do I graph a line given its equation? The equation is -3x + 2y = 2
*October 17, 2011*

**Science**

I just want to make sure this is correct. Ocean currents moving from low latitudes to high are GULFSTREAM, while those moving from high to low are CANARY.The all caps are my answers and I have searched the web and how found several things that might be it but I think it is ...
*October 16, 2011*

**physics**

A bird is sitting on a wire 22m long. The wind makes it move, creating a standing wave with 8 loops. What is the wavelength?
*October 16, 2011*

**Science**

Thanks for your help.
*October 15, 2011*

**Science**

In Hadley's cell model warm air rises at the equator and cold air sinks at the poles. Can someone tell me what these 2 questions mean? Surface air flow will be _________. Air flow aloft will be _______. Don't understand those two. Thanks
*October 15, 2011*

**Chemistry**

I need to supplement 20g of magnesium. Supplement comes with 825mg/ ounce. How many mg's or ounces to get to the 20g. Thanks
*October 11, 2011*

**math( statistics)**

How many simple random samples, SRS's, are possible of size 40 from a population of size 5000? (express in scientific notation 4 sign. figures) * I'm not sure how to start off.
*October 2, 2011*

**basic concepts and organ systems**

exam 40975100
*September 30, 2011*

**anatomy and physiology 1**

during an emergency room examination for an injured arm, the physician palpates the arms entire lenght starting at he shoulder and ending at the fingers of the hand , this process takes him from an
*September 30, 2011*

**math**

explain how you would use a number line to round 148 to the nearest ten?
*September 28, 2011*

**math**

what is 7,468rounded to the nearest hundred?
*September 28, 2011*

**math**

what is 172 rounded to the nearest hundred?
*September 28, 2011*

**math**

round 172 to the nearest hundred
*September 28, 2011*

**chemistry**

at the sea side the sun shines equally on the sand and sea. assuming the both absorb the same amount of energy, why is the sand a lot hotter than the sea
*September 22, 2011*

**chemistry**

a 2kg block of iron is given 10kj of energy and its temperature rises by 10c. what is the specific heat capacity of iron?
*September 22, 2011*

**chemistry**

a 2kg block of iron is given 10kj of energy and its temperature rises by 10c. what is the specific heat capacity of iron?
*September 22, 2011*

**medical coding**

when are abbreviations acceptable,who should use htem and why in the medical field
*September 18, 2011*

**early childhood**

Preschoolers use private speech: A. to influence others B. to keep some of their ideas a secret c. because it is more efficient d. because it enables them to communicate new ideas.
*September 14, 2011*

**Science**

Can anyone tell me what part of the body has good immune surveillance? Poor? Or give me a link?
*September 14, 2011*

**Biology**

Can someone tell me what I can look up to find the cell that is abundant in pus?
*September 13, 2011*

**geometry**

If the slope of a line is 5/3 and a point on the line is (57,12) using the given point and the slope find the coordinates of the lattice point on the line?
*September 13, 2011*

**Algebra 2**

(y-y1)/(x-x1).(the ones are sub ones and mean a different y and a different x.....so. -9-(-1) / 8-2 -9+1 / 6 -8 / 6 -4/3 slope = -4/3
*September 12, 2011*

**General**

Thanks so much!!
*September 12, 2011*

**General**

Can someone tell me a good search engine?
*September 12, 2011*

**Science**

I need to know what cell is abundant in pus and I have looked but was wondering if a neutrophils is a cell? Can someone give me a link please? Thanks
*September 12, 2011*

**Science**

You wish to make 1L of sterile lysis buffer soln. that is 10mM Tris-EDTA (pH 8) and 2% SDS. You have plenty of the following stock solns.: 2M Tris-EDTA (pH 8) and 20% SDS. However, SDS cannot be autoclaved and must be added to the soln. after autoclaving is done. Assume that ...
*September 12, 2011*

**Math**

Thank you!
*September 12, 2011*

**Math**

Solve for S: r^2s-5s=7. Solve for b: L= 4a^2b. I'm confused about how to solve these problems. Could someone show me the steps?
*September 12, 2011*

**chemistry**

What are the Kilojoules needed to melt 24.0g of ice at O degrees C, warm the liquid to 100 degree C and change it to steam at 100 degree C? Thank you,
*September 11, 2011*

**chem**

How many KJ are released when 75.0g of steam at 100 degree C condenses cools to 0 degree C and freezes at 0 degree C? I set it up like this but it is wrong, What am I doing wrong: 75g x 2260J/1g water x 1Kj/1000J =
*September 11, 2011*

**Chem**

What are the Kilojoules needed to melt 24.0g of ice at O degrees C, warm the liquid to 100 degree C and change it to steam at 100 degree C?
*September 10, 2011*

**Chem**

How many KJ are released when 75.0g of steam at 100 degree C condenses cools to 0 degree C and freezes at 0 degree C? I set it up like this but it is wrong, What am I doing wrong: 75g x 2260J/1g water x 1Kj/1000J =
*September 10, 2011*

**physics**

could you estimate the mass of the entire earth? How? If we cannot direct measure the earth's mass, how was it determined?
*September 7, 2011*

**college algebra**

10 1/2 of what number is 42.
*September 4, 2011*

**college algebra**

suppose you invest $15,000 in two funds paying 11 1/2%and 14% simple interest. the total annual interest is $1950. how much is invested in each fund?
*September 4, 2011*

**college algebra**

solve for C makeup: S=C+RC
*September 4, 2011*