Questions Asked on
May 21, 2010

Chemistry!!
A chunk of silver has a heat capacity of 42.8 J for 1ºC and a mass of 181g. Calculate the specific heat of silver.
asked by Meg Hat 
Programming
Design a program in pseudocode that calculates the amount of money a person would earn over a period of time if their salary is one penny the first day, and then doubles each day. The program should ask the user for the number of days. Display what the
asked by Ant 
Chemistry!!
How much heat is required to raise the temperature of 250.0 g of mercury 52ºC? The specific heat of mercury is 0.14 J/(gºC).
asked by Meg Hat 
Science
A father swings his child around in a circle. The source of the centripetal force that keeps the child moving in a circle is _____. tension friction weight gravity
asked by Jessica 
physics
a mass of gas emitted from the rear of toy rocket is initially 0.2kg/s. if the speed of the gas relative to the rocket is 40m/s and the mass of the rocket is 4 kg what is the initial acceleration of the rocket
asked by onda 
Physics
A person takes about 20 breaths per minute with 0.5 litre of air in each breath. How much heat is removed per hour by the moisture in the exhaled breath if the incoming air is dry and the exhaled breath is fully saturated? Assume that the water vapour
asked by Victor 
Chemistry
A weather balloon at Earth's surface has a volume of 4.00 L at 304 K and 755 mm Hg.? If the balloon is released and the volume reaches 4.08 L at 728 mm Hg, what is the temperature? What gas law do you use?
asked by Jake 
Right Hand Rule
Consider an electron near the Earth's equator. In which direction does it tend to deflect if its velocity is directed in each of the following directions? (a) downward: WEST (b) northward . (c) westward d) southeastward I go the first one right using the
asked by Physics 
social studies
I am one of the United States' most famous attractions. I am 279 milies (449 km) long and 1 mile (1.6 km) deep. People come from all over to hike in and around me.
asked by Precious 
physics
a coin placed on a disc rotates with speed of 33 1/3 rev. per minute provided that the coin is no more than 10 cm from the axis calculate the coefficient of static friction between the coin and the disc
asked by onda 
Algebra 2
A company manufactures bicycles in 8 different styles. Each style comes in 7 different colors. How many different bicycles does the company make?
asked by Ariel 
chemistry
1. How many joules of energy must be absorbed to raise the temperature of 20 grams of water from 25°C to 30°C?
asked by ana 
chemistry
Which of the following mixtures will be a buffer when dissolved in a liter of water? a. 0.1 mol Ca(OH)2 and 0.3 mol HI b. 0.3 mol NaCl and 0.3 mol HCl c. 0.4 mol NH3 and 0.4 mol HCl d. 0.2 mol HBr and 0.1 mol NaOH e. 0.2 mol H3PO4 and 0.1 mol NaOH i think
asked by George2 
physicss
A long string carries a wave; a 5.40m segment of the string contains three complete wavelengths and has a mass of 180 g. The string vibrates sinusoidally with a frequency of 45.0 Hz and a peaktovalley displacement of 19.0 cm. how do you go about writing
asked by pam 
physics
find the power of an engine in kilowatts which pulls a train of mass 600 tonnes up an incline of 1 in 100 at the rate of 60 km per hour. the weight of the engine is 200 tonnes and the resistance due to friction is 50 newton per tonne
asked by onda 
algebra 2
There are twenty songs from which a disc jockey can chose five to play on her program. How many different arrangements of songs are possible for the program? Please check my work 20x19x18x17x16
asked by Thomas 
Chemistry
How can you distinguish chemically between the following pairs of substances in one or two steps. a)HCl and H2SO4 b) KNO3 and K3PO4
asked by Anonymous 
physics
Light passes from air into water at an angle of incidence of 40.4°. Determine the angle of refraction in the water.
asked by jessica 
Chem
Can anyone show me how to balance: Ce+4 +H3AsO3 ==> Ce+3 + H3AsO4 using the halfreaction method?
asked by Chris Pike 
Grammar
The lawyer told the assembled family that their wealthy uncle had left his entire fortune to his cat. Should the word lawyer or uncle be capitalized in this sentence?
asked by Gwen 
algebra 2
The bag contains three red marbles, two blue marbles, and seven yellow marbles. Two marbles are randomly drawn from the bag. What is the probability of drawing a blue marble, replacing it, and then drawing a blue marble?
asked by Thomas 
Poetry
Which one of the following lines best illustrates personification? A. A narrow wind complains all day. B. The fog comes on little cat feet. C. Spring is a dream unsung. D. She floated graceful as a dove.
asked by Anonymous 
Math
Rationalize the denominator. Assume that all expressions under radicals represent positive numbers. The square root of 3y^4 to the third root divided by the square root of 15x^4 to the third root. Here is what I have so far: I multiplied. The square root
asked by B.B. 
statistics
use technology to find the Pvalue for a righttailed test with n=21 and test statistic t=2.065 apparently, i don't have a stat calculator or statistical software to use to find the answer. so i need help how to find it by using the t distribution table..
asked by shasha 
Chemistry
Okay, so i've got 8 reactions i am supposed to balance "according to the halfreaction method". Only problem is, i was gone for the lesson, and my borrowed notes look like an entirely different language! So if you could please show me the steps and explain
asked by Nessy 
physics
a piece of gold aluminuim alloy weighs 100g in air and 80g in water.what is the weight of the gold in the alloy if the relative density of gold is 19.3 and that of aluminium is 2.5
asked by onda 
Algebra
The Kinetic energy (k)of a moving object varies jointly with it mass (m) and the square of its velocity (v).If an object has a mass of 22.5 kilograms and moving with a velocity of 20 meters per second has a kinetic energy of 4500 joules, find it kinetic
asked by rosa 
physics
A 0.077kg arrow is fired horizontally. The bowstring exerts an average force of 50 N on the arrow over a distance of 0.75 m. With what speed does the arrow leave the bow?
asked by jack 
ART
What are some careers in the visual arts?
asked by Cheri 
art
Training needed for a career in art? Job opportunities for a career in art
asked by Leilane Zbin 
Math
Simplify by taking roots of the numerator and the demoninator. Assume that all expressions under radicals represent positive numbers. The square root of 243x^6/y^20 to the fifth root. Here is what I have so far: the square root of 243x^6 to the fifth root
asked by B.B. 
TIP: For this discussion response,
Writing is a very important component of online learning. Collegelevel writing is more formal most of your daily writing. Describe the difference between collegelevel writing and casual writing. In chapter 4 of the book, six steps for writing are
asked by Anonymous 
LAL!(check my work thx)
check if the capitalized word is correct PARTICIPLES AND GERUNDS 1. americans have many different ways of CELEBRATING holidays. (gerund) 2. BRINGING customs and traditions from their homelands, immigrants add to the rich holiday mix in the US. (participle)
asked by Sara! 
Chem
Can't figure this one out....how do you balance MnO4 + SO32 ====> SO42 + Mn+2?
asked by Jake 
statistical reasioning
An actuary at an insurance company estimates from exsiting data that on a $1000 policy an average 1 and 100 policyholders will file a 20000 claim. in average of 1 in 200 policyolders will file a 50000 claim in average 1 in 500 policyholders will file a
asked by Melissa 
algebra 2
Two cards are randomly drawn from a standard deck without replacing the card after the first draw. Find the probability of drawing a spade followed by a heart. Please type your answer as a fraction.
asked by Thomas 
Math
Two angles are complementary. The sum of the measure of the first angle and onefourth the second angle is 87.75 degrees. Find the measures of the angles? What is the measure of the smaller angle? What is the measure of the other angle. Both in degrees...
asked by JOHNNY 
LAL!
check if the capitalized word is correct PARTICIPLES AND GERUNDS 1.SINGING songs such as "auld lang syne", people say good bye to the old year and hello to the new.(gerund) 2. HAVING 2 faces, janus looked forward and backward.(participle) 3. some of our
asked by Sara! 
algebra 2
You roll a red die and a green die. Find the probability of rolling a four on the red die and a three on the green die.
asked by Thomas 
Physics 11th grade
A) What is the intensity of sound at 148 dB? Units: W/m^2. I found this to be 630.9573445 using Io*10^B/10 in which B= 148 dB. B)Compare it to that of a whisper at 20 dB. Using the same formula i find this to be 1e8 but it is marked as wrong. Please help
asked by Luricela 
Physics
carbon14 is produced in the atmosphere primarily by what?
asked by john 
human resources
Do you believe humans can harvest forest resources in an environmental friendsly way, or should national forest be left in their natural state in which resources are not used to benefit humans?
asked by Lisa 
economic
I will deposit $1000 per year for 25 years.� Assuming a 5% compound interest rate, what will my account be worth in 25 years? �Now assume a 10% compound rate and calculate my future balance
asked by kathy 
World Literature and Language
List the characters in the story. Write one to two sentences on the defining characteristics of each one, providing at least one citation to illustrate your comments. How do the villagers respond to the spider girl? What do you think their response
asked by Chelsea 
physics
An elevator cab in the New York Marriott Marquis has a mass of 4.96 x 103 kg and can carry a maximum load of 1.80 x 103 kg. If the cab is moving upward at full load at 3.71 m/s, what power is required of the force moving the cab to maintain that speed?
asked by jack 
sociology
How does the merchandise displayed in toy stores reflect the issues of race, gender, and class?
asked by Jill 
math
HELP ! I just don't get this. The perimeter of a rectangle is 40 m. The length is 5m more than twice the width. Find the dimensions. What is the length? What is the width? I need to simplify my answer... PLEASE HELP ME>
asked by JOHNNY 
alegra
solve 4y + 10 = 46
asked by cathy 
LAL!
are this sentences GERUNDS 1. in almost every american town, holding parades on the 4th of july is a tradition. ( IF its a gerund is the gerund used as a subject) 2.the keeping of the fast of ramadan occurs during the 9th month of the islamic calender.(IF
asked by Sara! 
Algebra 1a
I posted this early, I don't understand the answer, Two angles are complementary. The sum of the measure of the first angle and onefourth the second angle is 87.75 degrees. Find the measures of the angles? What is the measure of the smaller angle? What is
asked by Johnny 
Enviromental science
Do you believe humans can harvest forest resources in an environmental friendsly way, or should national forest be left in their natural state in which resources are not used to benefit humans?
asked by Lisa 
english
i have to write a declaration of independance what key words or [hrases should i use.
asked by katie 
English
1. How much is gimbap? 2. How much is a gimbap? 3. How much is two gimbaps? 4. How much are two gimbaps? 5. How much are two rolls of gimbap? 6. I want to eat some gimbap. 7. I want to eat some gimbaps. 8. I want to eat some rolls of gimbap. (Which
asked by rfvv 
chemistry
what is the formula of a compuond formed by combining 50g. of element X and 32 g. of oxygen
asked by Kaila 
math
Why does inverse variation not hold (as x increases y decrease) when the constant of variation is negative?
asked by Stan 
Calculus
Find the area between y=cosx and y=sinx from 0 to 2pi. To find the zeros, I combined the equations cosxsinx=0 What's next?
asked by sh 
World History
Can you help me with this question What are the boers famous for?
asked by Summer 
world history
Is this correct? What was Hong Xiuquan famous for? Answer: He was famous for establishing the Taiping Heavenly Kingdom.
asked by Summer 
algebra 2
Two cards are randomly drawn from a standard deck replacing the card after the first draw. Find the probability of drawing a Jack followed by an Ace.
asked by Thomas 
accounting
I am looking for the answer to this assignment. I am not an accounting major and have no clue. Please help Assignment Name: Unit 4 Individual Project Deliverable Length: 23 paragraphs Details: Les Fleurs, a boutique in Paris, France, had the following
asked by Terill 
math
A cellular phone company offers a a contract for which the cost C, in dollars, of t minutes of telephoning is given by C=0.25(t600) + 40.95, where it is assumed that t ¡Ý600 minutes. What times will keep costs between $83.45 and $104.20? For the costs
asked by TIM 
math
I posted this early, I don't understand, Two angles are complementary. The sum of the measure of the first angle and onefourth the second angle is 87.75 degrees. Find the measures of the angles? What is the measure of the smaller angle? What is the
asked by TIM 
algebra 2
The nurseryman brought six different varieties of trees to plant in six locations in the park. In how many different ways can he plant the trees
asked by Thomas 
algebra 2
A caterer offers a choice of five desserts from a list of eight for the dessert bar at the prom. How many different groups of desserts could be served?
asked by Thomas 
intro to business
No one can predict a natural disaster or world crisis. When a hurricane or flood or a pandemic strikes a country, who is most likely to respond first? Which economic system is the best solution to handling a crisis of epic proportion?
asked by rose 
math
A caterer offers a choice of five desserts from a list of eight for the dessert bar at the prom. How many different groups of desserts could be served? please check my answer = 120
asked by CB 
math
Which should be used a permutation or combination? Determine the number of different ways in which a committee of four can be chosen from a group of twelve members? please check my answer = combination
asked by CB 
Geo
For questions 33 and 34, write the equations for the lines parallel and perpendicular to the given line through the given point (one point for each equation). x  3y = 9 through (2, 1)
asked by jj 
psychology 230
wat influence does culture have on personality?
asked by sally 
algebra
x^24/X^2+3x+2=(x2)(x+2)/x(3x+2)=(x2)/x3 check this problem
asked by Angelia 
intro business
What advantages might a socialist system have in responding to the needs of people struck by an emergency situation like the earthquake that occurred in Haiti in January, 2010?
asked by meah 
MBA
Imagine that you have to make a presentation on your MBA project to a group of your professors and industry experts. Prepare the following – a) A general statement of purpose b) A specific statement of purpose c) The key idea d) A brief audience analysis
asked by haleema 
geography
can you help me with my 3d top map construction project of a pear island. I would like you to explain to me step by step on how to do it and make steps explanatory for me.The materials Iwas asked to use was a foam board, string, markers, crayons scissors,
asked by Ted 
Math
Could someone please help me with this math problem? This is what I have so far but now I am stumped as to what to do next. Multiply and simplify by factoring. The square root of 18 * square root of 40. The square root of 18= the square root of 9*2. The
asked by B.B. 
psychology
As we age, our physical functioning deteriorates. This is most likely due to reduced efficiency in basic cellular processes. One cause of this is thought to be
asked by angie 
science
a 75.0 pF capacitor is connected to a 12V battery. How much charge is on each plate?
asked by Anonymous 
english
what are the indefinite pronouns
asked by Abigail 
algebra
How do you solve this math problem? h= 8t^2+40t then it says: when t=0 and when t= 5 there are 2 questions that i have to answer: 1.) find the value of h 2.) graph this equation  i don't know if i did the problem right but when i answered #1 i got h=0, 
asked by Rachel 
Math
Round 1,643,253 to the nearest hundred thousand. I say it's 1,600,000 but the workbook says 1,700,000. Please explain.
asked by Aaron 
medical
For each body system, identify which body approach(es) might best be used to organize information. Choose only from the following approaches: microscopictomacroscopic, body directions and planes, body cavities, and quadrants and regions
asked by chris 
Compters and software in a bussiness
How are computers and software aplications utilized in a bussiness setting to solve bussiness problems?
asked by JJ 
math
how do I graph a radical equation? With the numbers t=0 (2010) 3000, t=1(2011)4500,
asked by Carolyn 
Algebra
Using the formula: w=Cr^2 where C is a constant, and r is the distance that the object is from the center of Earth. W is the weight. 1 Suppose an object is 100lbs when it is at sea level. Find the Value of C that makes the equation true. Sea level is
asked by Teri 
math
1. In a survey of a TriDelta chapter with 46 members, 13 were taking mathematics, 33 were taking English, and 6 were taking both. How many were not taking either of these subjects?
asked by bill 
LAL!
in this sentence is the verb losing used as main verb or gerund as direct object? they are definitely LOSING that game!
asked by Sara! 
EDU
Discuss the different developmental eras of American education. How did the philosophies and practices of those eras scaffold into what we see today?
asked by Anonymous 
algebra 2
If a McBurger employee is expected to work four of the seven days in a week, how many different weekly schedules are possible for the employee?
asked by Thomas 
algebra 2
In how many different ways can you roll doubles in a monopoly game when you use two die?
asked by Thomas 
algebra 2
Which should be used a permutation or combination? Determine the number of different ways in which a committee of four can be chosen from a group of twelve members?
asked by Thomas 
LAL!
how can i write DREAMING in a sentence as gerund
asked by Sara! 
math
solve equation if equation has no solution state so,simply when necessary 2/3x+1x=1/6 1/x+41/x2=x+2/x^2+2x8 help me please
asked by Keaton 
math
In how many different ways can you roll doubles in a monopoly game when you use two die? Please check my answer = 6
asked by CB 
math
If a McBurger employee is expected to work four of the seven days in a week, how many different weekly schedules are possible for the employee? Please check my answer = 840
asked by CB 
math
The nurseryman brought six different varieties of trees to plant in six locations in the park. In how many different ways can he plant the trees Please check my answer = 720
asked by CB 
algebra
Let x = 10, y = 4, z = 2, and evaluate the following. x − y + z =
asked by Aswat 
Brittish lit
the king james bible version of ecclesiastes, what poetic element is used the most?
asked by Anonymous 
Statistics For The Behavioral And Social Sciences
A researcher conducts a t test for dependent menas in which it is predicted that there will be a decrease in unemployment from before to after a particular jobskills training program. The cutoff "t" needed is 1.8333. The standard deviation of the
asked by Dee Sanders 
science
How do you build a pasta car?
asked by Makayla 
physics
a particle of mass 0.3kg vibrates with a period of 2 sec. if its amplitude is 0.5m what is its maximum kinetic energy
asked by onda 
English
1. How much is a oneday ticket? 2. How much is one day ticket? 3. How much is a one day ticket? 4. How much is an hour ticket? 5. How much is a an hour ticket? 6. How much is a one hour ticket? 7. How much is a onehour ticket? 8. How much is a morning
asked by rfvv 
social studies
what is economic globalization? Need 3 examples from different parts of the economy.
asked by judy 
3rd grade
WHAT is a prism?The different shapes that make a prism and finally what prism can you make with a pentagon base?
asked by Desteni 
Pre Algebra
Transversals?
asked by Emma 
English
Can you please tell me if the following senences are possible? 1)I'm always stricter than him (or than he is) when evaluating the students' tests. 2) In spite of being ill (Can you say "despite being ill"), he decided to go for a walk. 3)He was ill. Yet
asked by Franco 
programmning code
Is this code right? Declare Integer days, counter = 1 Declare Real penny = 1, salary, total = 0 Display "Enter a number of days." Input days Display "Days",TAB,"Salary While counter
asked by Anon 
chemistry
does a solution have to involve a liquid?
asked by nanan 
chemistry
what is the value of log in a pH calculation?
asked by lucy 
Finance
I am trying to figure out how to compare longand shortterm financingand then describe situations in which each type of financing would be used.
asked by Bridget