Questions Asked on
June 24, 2009

physics
Use R = 8.2 × 10–5 m3 atm/mol K and NA = 6.02 × 1023 mol–1. The approximate number of air molecules in a 1 m3 volume at room temperature (300 K) and atomospheric pressure is:
asked by sam 
Physics
I had to graph the following data and find the slope: Normal Force: Frictional Force: 0 0 2.0 0.6 6.0 1.8 9.0 2.7 10.0 3.0 The slope was 0.30. The question that I am confused on is what does this graph's slope represent?
asked by Jack 
physics
A girl of mass 60 kg throws a ball of mass 0.8 kg against a wall. The ball strikes the wall horizontally with a speed of 11 m/s, and it bounces back with this same speed. The ball is in contact with the wall 0.05 s. What is the average force exerted on the
asked by larry 
Physics
Two identical perfectly smooth 71.2 N bowling balls 21.7 cm in diameter are hung together from the same hook by two massless wires. The bowling ball are just in contact with one another, and the angle between the two wires is 50 degrees. What is the force
asked by Sarah 
chemistry
When ice at 0C melts to liquid water at 0C, it absorbs 0.334 kj of heat per gram. Suppose the heat needed to melt 31.5 g of ice is absorbed from the water contained in a glass. If this water has a mass of .210 kg and a temperature of 21.0C, what is the
asked by Capacino 
Physics
An object is thrown upwards with a speed of 14.0 m/s. How long does it take to reach its maximum height
asked by Anonymous 
chemistry
Here is the question: A sample of ethanol, C2H5OH, weighing 2.84g was burned in an excess of oxygen in a bomb calorimeter. THe temperature of the calorimeter rose from 24C to 33.73C. If the heat capacity of the calorimeter and contents was 9.63 kj/C. What
asked by Capacino 
Math
Which of the following is TRUE about the line through the points (–1, 4) and (–1, 2)? Please EXPLAIN/SHOW WORK. A. The slope is undefined B. The slope is negative C. The slope is 0 D. The slope is positive
asked by Carmin 
physics
which is false? Consider the following processes: I. Energy flows as heat from a hot object to a colder object II. Work is done on a system and an equivalent amount of energy is rejected as heat by the system III. Energy is absorbed as heat by a system and
asked by matt 
Scholarships
I am applying for a scholarship that requires a 250 word essay on a topic of my choice. What kind of topics should i consider?
asked by Amanda 
English
1. She poured water all over my painting and ruined it. (Can we use 'spoiled' instead of 'ruined'?) 2. boil (water changes into moist) 22. boil (water changes into moisture) (Which definition is right?) 3. He doesn't care about his family. He is not
asked by John 
Math
The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle. (a) Find the center of the circle. (b) Find the length of the radius of the circle. (Note that this is a distance.) Give the exact answer. Show work. (c) State the equation of the
asked by Kate 
MATH 156
How do you add and subtract fractions? Provide an example and demonstrate the steps you would take to arrive at the answer. What strategies would you use to help a student struggling with the concepts of adding and subtracting fractions?
asked by NENAS 
pchem
Use R = 8.2 × 10–5 m3 atm/mol K and NA = 6.02 × 1023 mol–1. The approximate number of air molecules in a 1 m3 volume at room temperature (300 K) and atomospheric pressure is: 41 450 2.5 × 1025 2.7 × 1026 5.4 × 1026
asked by ben 
Math
How do I formulate this question to be solved in the POMQM software? Deborah inherited a large sum of money; she wants to use a portion of this money to set up a trust fund for her two children. The trust fund has two investment options: 1) a bond fund
asked by Nukdog 
physics response to bobpursley
which is false? Consider the following processes: I. Energy flows as heat from a hot object to a colder object II. Work is done on a system and an equivalent amount of energy is rejected as heat by the system III. Energy is absorbed as heat by a system and
asked by matt 
Math
Given f(x)= x1/x^225 please determine the domain. Thank you! A. All real numbers except 5 and 5 B. All real numbers except 5,0 and 5 C. All real numbers except 0 D. All real numbers except 0 and 5
asked by Crissy 
English
1. We see through/with our eyes. 2. We eat through/with our mouth. 3. We run through/with our legs. 4. We talk through/with our mouth. 5. We breathe through/with our nose. (Would you check the sentences? Which preposition do I have to use? Are both OK?) 6.
asked by John 
physics help!!!
the volume occupied by 1kg of water at 100C and atmospheric pressure changes from 1L in the liquid phase to 1700L in the vapor phase. evaluate the difference in internal energy of 1kg of water vapor and 1kg of liquid water at the normal boiling point: So i
asked by sarah 
Algebra
Find the equation of the line parallel to the line 3x + y = 5 and containing the point (4, – 2)
asked by Bonnie 
Algebra
Let f(x) = 1 – 3x^2. Which of the following is true? Please give us a brief explanation. A. f is an odd function. B. f is an even function. C. f is neither odd nor even. D. f is both odd and even.
asked by Jeanna 
Accounts
GT Ltd provides you with the following information at 30.06.Y1 Amounts in MUR. 1. Property, Plant and Equipment 505,000. Other Financial Assets 120,000. Inventories 200,000. Trade and other Receivables 202,000. Prepayments 10,000. Cash and Cash Equivalents
asked by Taykto 
Managerial Economics
I need help with these questions 1. The structure of the market in which JetBlue operates (i.e. how competitive is itmonopolistic, oligopolistic, competitive, monopolistically competitive)? If your company turns out to have several huge, unrelated
asked by Linda 
Algebra
Confused Please Help! Thanks! Let f(x) = 1 – 3x^2. Which of the following is true? Give a brief explanation. A. f is an odd function B. f is an even function C. f is neither odd nor even D. f is both odd and even
asked by Laurie 
AED
How might that be a solution to dealing with instruction and assessments of varying levels of language development?
asked by NENAS 
math
Do you think that the formula where n is a whole number, will produce a prime number more than 50% of the time? Give evidence to support your conclusion.
asked by sarah 
Calculus
Evaluate the integral. 2 at the bottom of the integral sign and 7 at the top. f(x)dx f(x)={x if x or equal to 1 I'm not sure how you would apply these two concepts together?
asked by Z32 
Math
How do i factorise 25p^2q^2?
asked by Marcelle 
Chemistry
What are vinyllic organohalides? How would you be able to identify them? Thanks
asked by Sam 
art
How do you add and subtract fractions? Provide an example and demonstrate the steps you would take to arrive at the answer. What strategies would you use to help a student struggling with the concepts of adding and subtracting fractions?
asked by CHAYO 
Math
Using the TI89 Titanium calculator: Find the largest and smallest values of each of the following functions on their given intervals. (I'll show you one) f(x) = 2^x + x^2 [4, 1] I put in the function on the Y= screen as shown, then 4 < x < 1 (it's
asked by Monique 
math
Simplify: (12i)+(46i) I get 38i and 58i... confused, which one is it?
asked by Sophie 
Physiology
The amount of DNA (measured in ng per mg ventricle) decreased. One nucleus is present in each vertebrate myocardial cell (each cell is mononucleated). Explain how it is possible that a decrease in massspecific DNA concentration indicates growth of
asked by brad 
IT 210 Fundamentals of Programming with Algorithms
Currency Conversion Test Procedure
asked by Anonymous 
Math
For i = the square root of 1, if 3i (2 + 5i) = x + 6i, then x = ? A. –15 B. 5 C. 5i D. 15i E. 27i
asked by Ron 
math115
the following scores were recorded on a 200 point final examanation;193,185,163,186,192,135,158,174,188,172,168,183,195,165,183. (A) FIND THE MEAN FINAL examination score (b) find the median final examination score (c) is the mean or median a more useful
asked by Anonymous 
literary
I am writing my father's obituary  he passed away unexpectedly on Monday. He was from a very small town and always quoted verse that ended with "And when I go (return) home, I am a boy again" Walt Whitman. Dylan Thomas. Please. Please. I have a deadline
asked by Ellen 
geography
to which will i refer to know the kind of climate in Korea?
asked by maynard 
geography
to which will i refer if i want to know Japan has snow?
asked by maynard 
Math
How do I calculate price relatives?
asked by Loyce 
math
Solve the simultaneous equations: 3x2y=19 2x+3y=4 Do i create a 3rd eq like this? 6x4y=38 and where do i go from here?
asked by Destiny 
Math
I need some help with this problem. When finding the factors of 841, what is the largest factor you would have to test? What theorem supports this? Can someone please help me with this? Thanks.
asked by Anonymous 
Algebra
Let f(x) = 1 – 3x^2. Which of the following is true? Give a brief explanation. A. f is an odd function B. f is an even function c. f is neither odd nor even Cf is both odd and even
asked by Tammie 
Chemistry
How do you identify the most stable carbocation? Is it the one with more bulky substituents?
asked by Sam 
Algebra
Help please! I got so far with this and stopped because of confusion. Here is what I have so far. Let f(x) = 6/x1 and g(x) = 1 + 3/x find the composite function of (fog)(x) (fog)(x) = f (g(x)) =f (1+3/x) =6/x1 ????
asked by Rachale 
words and reference
what do these 2 words mean please.? can you please help with the 2 following questions 1) can you tell me what  embodiment  means and please give an example. 2) Also can you please tell me what  intersubjectivity  means as before please give an
asked by amys 
Physiology
the mechanisms responsible for triggering cardiac hypertrophy are still a mystery. Hypothesize about possible signals and the steps that might be involved to cause postprandial cardiac hypertrophy in pythons.
asked by brad 
Managerial Economics
what advice would you give someone you believe to be excessively wary of risk?
asked by Linda 
HIS 135
I am doing research on my final project in HIS 135, and I need to find an important social, economic, or political event that impacted the American people the most for the following years: 1950s, 1960s, 1970s, 1980s, 1990s. I don't mind doing the research
asked by Punkie 
Algebra
Let f(x) = 6/x1 and g(x) = 1+3/x. Please fing the composite function. This is what i got so far. =f (1+3/x) =6/x1 = =f (1+3/x) = 6/ [1+3/x  1] How do I get the composite?
asked by Stacy 
elementry
What characteristic do the numbers 8, 10, 15, 26, and 33 have that the numbers 5, 9, 16, 18, and 24 don’t have? (Hint: List the factors of the numbers.) Give two more numbers that have this characteristic.
asked by Anonymous 
com130
. In what situations might an individual writing process be preferable?
asked by Joel 
Maths
How do i simplify (3a1^2)?
asked by Francois 
calculus
Differentitate y = e^x^2 ^5^x +^4 so far i have dy/dx = 2x e^(x^2)  5^(x)* ln 5 + can you help with the rest?
asked by lana 
AED
How does language development affect instruction and assessment for ELL students? In what ways are our tests geared equally toward all students, ELL or otherwise or are they?
asked by CHAYO 
calculus
differentiate y = ln(e^x + e^x)
asked by lana 
us history
In what ways does the Magna Carta still impact law?
asked by greg 
accounting
Malissa is an accountant. Sometimes printouts of financial statements have errors and are not usable. Malissa doesn't like to waste anything, so she takes the unusable financial statements to her son's day care center to use for drawing paper. Explain why
asked by shay 
math
How do you do this: (4 5 + (3 2 0 7) 5 6)
asked by Isabella 
physics
Which of the following processes leads to a change in entropy of zero for the system undergoing the process? Noncyclic isobaric (constant pressure) Noncyclic isochoric (constant volume) Any closed cycle
asked by sam 
11th grade
The equation of a circle with center (0, 3) and radius 3 is
asked by ra 
math
The equation of a circle with center (1, 2) and radius 4 is
asked by ra 
math
Every circle is a function
asked by ra 
Statistics
Two problems: 1. Find D sub 3 of the following data set: 60, 40, 26, 33, 23, 53, 36, 23, 28, 12, 30, 47 2. Find P sub 26 of the following 25 scores: 38.5, 41.5, 52, 52.5, 61, 63, 63.5, 68, 69, 69, 78.5, 79, 80, 83, 87, 88.5, 88.5, 91, 91.5, 92, 92.5, 94,
asked by Amy 
writing
In society today, some families don't have essential needs of financial stability, attention of their parents, and a comfortable household to grow up in a stable environment which lead to a dangerous future ahead. Comparing to that and our own vision of a
asked by Justin 
Physiology
Of what physiological advantage would increased stroke volume (and its related effect on cardiac output) be to an animal that just ate a meal?
asked by brad