Questions Asked on
June 14, 2010

physics
Rita accelerates a 0.40kg ball from rest to 9.0 m/s during the 0.075 s in which her foot is in contact with the ball. What average force does she apply to the ball during the kick? A) 48 N B) 72 N C) 24 N D) 60 N E) 76 N
asked by anonymous 
Statistics
A football team’s coach predicts that his team will win 9 out of 10, or 90%, of its games. Which method did he most likely use to make this prediction my answer to this is relative frequency is this correct
asked by Jacob 
math
Calculate the finance charge and new balance using the previous balance method. Previous balance = $179.32 Annual rate = 16% Finance charge = New purchases = $117.42 Payments/credits = $85.00 New balance =
asked by john 
chemistry
A solution of 0.2113 g of water dissolved in 25.0 g of a solvent freezes at 11.5 °C below the freezing point of the solvent. What is Kf for this solvent?
asked by Anonymous 
chemistry
Of the metals Pb, Mg, Au, and Na, which will not spontaneously donate electrons to copper in solution?
asked by Lou 
physics
Doug hits a hockey puck, giving it an initial velocity of 6.0 m/s. If the coefficient of kinetic friction between ice and puck is 0.032, how far will the puck slide before stopping? A) 19 m B) 25 m C) 37 m D) 57 m E) 68 m
asked by anonymous 
Statistics
find z such that 97.5% of the standard normal curve lies to the left of z
asked by John 
PreAlgebra
Three individuals form a partnership and agree to divide the profits equally. X invests $9,000, Y invests $7,000, Z invests $4,000. If the profits are $4,800, how much less does x receive compared to having the profits divided in proportion to the amounts
asked by Steve 
physics
A 70.0kg man jumps 1.00 m down onto a concrete walkway. His downward motion stops in 0.0400 seconds. If he forgets to bend his knees, what force is transmitted to his leg bones? A) 15 500 N B) 7 750 N C) 4 900 N D) 3 8740 N E) 2.600 N
asked by anonymous 
biology
A sceitists gradually increases the amount of carbon dioxide available to a plant. The plant's rate of photosynthesis increases at first, but then levels off. What else might tyhe plant need to further increase its rate of photosnthesis?
asked by hudi udman 
Statistics
In baseball, is therelinearcorrelation between batting average and home run percentage? Let x represent the batting average of a professional baseball player. Let y represent the home run percentage (number of home runs per 100 times at bat). Suppose a
asked by John 
Math
cot (theta)=9/8, cos (theta)
asked by David 
physics
The accelerating force of the wind on a small 200kg sailboat is 707 N north. If the drag of the keel is 500 N acting west, what is the acceleration of the boat? A) 1.5 m/s2 35 degrees north of east B) 2.5 m/s2 55 degrees north of west C) 3.0 m/s2 35
asked by anonymous 
chemistry
write the reaction for the dehydration of CuSO4 . XH20?
asked by Alisha 
Biology
Please help what are the consequences of nondisjunction of the sex chromosomes? Thanks
asked by Ashley 
Sci
I want a catchy prahse for my topic experiment"Can water be splitted into hydrogen and oxygen?"
asked by Alisha 
physics
What is the minimum downward force on the box in the figure that will keep it from slipping? The coefficients of static and kinetic friction between the box and the floor are 0.35 and 0.25, respectively.
asked by Anonymous 
Chemistry
A 1.009g mixture of the solid salts Na2SO4 (molar mass=142.04g/mol) and Pb(NO3)2 (molar mass=331.20g/mol). The precipitate was filtered and dried, and it mass was determined to be 0.471 g. The limiting reactant was determined to be Na2SO4. a. write the
asked by Jerry 
chemistry
A volume of 35.0 mL of nitrogen gas was collected over water at 24 degrees C and 99.1kPa. The vapor pressure of water at this temperature is 2.99 kPa. What is the pressure of the nitrogen gas alone?
asked by Edward 
science
which two biomes are the driest?
asked by mrs.bieber 
trig
Write the following equation in standard form and identify the type of conic: 9y^2  4x^2 + 8x + 18y + 41 = 0
asked by James 
biology
At one time the continent of Australia was connected to Asia. About 50 million years ago Australia became separated. It has many unusual animals not found elsewhere, such as the Kangaroo and the Koala bear. Using the concepts of geographic isolation and
asked by hudi udman 
Statistics
does a raw score less than the mean correspond to a positive or negative score? what about a raw score greater than the mean.
asked by Jacob 
Statistics
Native American pot shards discovered i a hpoi villiageare approximately normally distributed with a mean of 5.1 millimeters and a standard deviationof 0.9mm what is the probability that the thickness is (a)less than 3.0mm (b) more than 7.0 and (c) between
asked by John 
literary
define modernism
asked by amanda 
calculus
Consider the function. f (x) = 5x3 + 3x (a) Compute the derivative at x = 3 using the limit definition. f '(3) = (b) Find an equation of the tangent line. 2
asked by Irene 
Mechanics
If an object weighs 39.2 N on earth, what is its mass?
asked by Anonymous 
Chemistry
Calculate the theoretical yield of barium sulfate using your assigned volume. I was assigned 30mL of BaCl2. The balanced equation is: H2SO4 + BaCl2 > 2HCl + BaSO4. In the experiment we used .20M BaCl2, .60M H2SO4 and 1M HCL
asked by Sam 
Chemistry
In cold climates, methanol is often used as a gasoline antifreeze and an additive of winer gas. How does it remove water vapour an ice from the gas tank and the fuel line?
asked by Amy 
Chemistry
One mole methane is completly burned in xcess oxygen. If 8.90x10^3kj of heat are given off from theis reaction, calculate the heat given off for 1.44g of methane.
asked by Adeola 
Chemistry
Predict whether the following solutions are acidic basic or neutral. Provide explanations to support your predictions a) ammonium phosphate b) Ammonium sulfate c) Magnesium oxide
asked by Adeola 
chemistry
A solution of 0.2113 g of water dissolved in 25.0 g of a solvent freezes at 11.5 °C below the freezing point of the solvent. What is Kf for this solvent?
asked by Anonymous 
physics
A ferris wheel rotates at an angular velocity of .036 rad/s. At t=0min your friend Seth is at the very top of the ride. What is Seth's angular position at t=3 min, measured counterclockwise from the top?
asked by Sarah 
ProbabilityPlease check
Consider the experiment of rolling a single die. Find the probability of the event described. What is P(odd or prime? Since this is an "or" problem would the problem consist of 3 chances out of 6 thus my answer = 1/2?
asked by bart 
Algebra
0.2x+12x+11 solve by using quadratic equation
asked by Lisa 
vocab
The lake's reflection usually creates a glare,but now the surface is
asked by Anonymous 
organic chemistry
recrystallization question: a student's correctly calculated value for the % recovery of purified unknown solid was 102%. assume that the student performed all steps of procedure correctly. a) comment on the validity of the result (include reasons). b)
asked by jay 
Statistics
Native American pot shards discovered in a hopi villiage are approximately normally distributed with a mean of 5.1 millimeters and a standard deviationof 0.9mm what is the probability that the thickness is (a)less than 3.0mm (b) more than 7.0 and (c)
asked by John 
Statistics
Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were
asked by John 
Statistics
You draw two cards from a standard deck of 52 cards and replace the first one before drawing the second. Find the probability of drawing a 4 for the first card and a 9 for the second card. Round your answer to the nearest thousandth. 0.039 0.019 0.155
asked by John 
Statistics
How many sequences contain exactly three heads when you flip a coin five times? my answer was 15 but apparently I am wrong 2 15 10 8 12
asked by John 
Statistics
Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six
asked by John 
healthcare
if hipaa rules are stricter than state law which standard shuld you foolow and why? what if the state law was stricter?
asked by leshe 
Geometry
What is the circumference of the circle if the radius is: 5xMy answer was 57(x)pi. What is the radius if the circumference is: 30x(pi)My answer was 2x. (x + y)pi My answer (x+y)/7. What is the length of the arc if: radius=3 degree of measurement of
asked by Temperance 
CAPITALIZATION
her father is reverend harry anderson?words need to be capitalized is Reverend, Harry, Anderson
asked by NOOR 
Geometry
What is the radius if: degree of measurement of arc=30 length=1/3xy(pi) My answer was 8xy. degree of measurement of arc=40 length=8/9(t)(pi) My answer was 9t. degree of measurement of arc=18 length=6(y)pi My answer was 45y. These are the questions I
asked by Temperance 
french
microwave in french
asked by allan 
CAPITALIZATION
aunt consuelo is consuelo metendez, doctor of dental surgery? the words (Aunt, Consuelo, Consuelo, Metendez, Doctor, Dental, Surgery )need to be capitalized
asked by NOOR 
Math
The area if a rectrangular swimming pool can be represented by the trinomial expression 6xsqaured+5x4. If x= 4m, what is the total area of the pool and what are it's dimensions?
asked by Kristen 
CAPITALIZATION
we listened to that old song again, "you and me against the world." the words need to be capitalized is We, You, Me, Against, World.
asked by NOOR 
psychology 202
As we age, our physical functioning deteriorates. This is most likely due to reduced officiency in basic cellular processes. One cause of this is thought to be:
asked by anonymous 
healthcare
explain the subject matter jurisdiction of federal courts.
asked by leshe 
science
What is blood made of?
asked by Vince 
general studies
I'm trying to narrow down/refine thesis statementt about women vs. men, being as ruthless and capable of voiulenbt crime. Any ideas?
asked by nina 
macroeconomics
According to the optimal output rule, if marginal benefit
asked by college student 
research
what strategies formulated a nation apart
asked by kesha 
English
I'm looking for three examples (quotes would be a big help) of the following three traits that Ralph displays: Courage Rationality Strongwill Any quotes and examples from the book are INCREDIBLY APPRECIATED. Essay due tomorrow and I cannot think of
asked by Taylor 
chemistry
I need to find how many grams phosphorus (P) are in 0.8645 g sample of MgNH4PO4 x 6H2O How many grams P2O5 can be calculated with this many grams of P What is the percent P (as P2O5) in this
asked by Jamie 
TI83 CALC PROGRAM
Please can anyone help me with this or any part of it? Be very grateful as left it too late... Write a program for ti83 calculator which generates and displays integer values for A, B and C between 1 and 10; • requests the student to input the solution
asked by Jo 
Biology
please help !!! were you able in all cases to determine the parent and meiotic stage of origin of the nondisjunction?
asked by Emily 
English A little help please
I am doing my plot summary on the Book Royally Jacked and I really want to know the significance of this title towards the book. I can't seem to explain it well. Royally stands for the royal family in this book whom Valerie and her dad are staying with. I
asked by Sara 
READING
johnny's best lifelong memory was when he got his driver's license. during his teenage years, a driving license signified his passage to adulthood. (johnny knew that a driver's license was like a_____ to adulthood. 1)road 2)passage 3)road 4)all(1,2,3) my
asked by NOOR 
Algebra Combining like terms
It is a multiple choice test. I have placed my after the question. I am not asking anyone to do it for me I simply would like someone to check my answers and maybe if their nice tell me what went wrong on the ones i get wrong. Thanks! 1.) Combine Like
asked by Kati 
To Ms. Sue
Ms. Sue how does this opening sound for a plot summary? I chose the book "Royally Jacked" and it turned out to be pretty good. The only thing that I didn't really like about it was that there wasn't really any high rising actions in there, but it was still
asked by Sara 
proviso
how many grams of Fe2O3 are formed when 16.7g of Fe reacts completely with oxygen?
asked by liz 
geometry
how much foil is required to cover a rectangular box that is 4 in. by 8 in. by 5 in.?
asked by Anonymous 
Standard DeviationWhat?
I cannot figure out how to do standard deviation. standard deviation 2, 5, 47, 11, 13, 48, 39, 36
asked by bart 
12th grade
gaseous ammonia is made by the following reaction: N2+3H2  2NH3. if you start with 7 liters on nitrogen gas, how many liters of hydrogen are needed for a chemical reaction?
asked by Anonymous 
science
which two biomes is the driest?
asked by mrs.bieber 
EXP105
SUMMARIZE BLOOM'S THEORY IN YOUR OWN WORDS AND HIGHLIGHT THE MAIN COMPONENTS
asked by AMBER 
algebra
if there is a 4 digit code and the number choices are 09 and the last two numbers in the code are 0 and 7 what are all the code possibilites? _ _ 0 7
asked by barbra 
chemistry

literature
i need to know all of the syllables in words
asked by anna 
Chemistry
Calculate the energy in joules and calories required to heat 40.0 silver from 112 degrees to 280 degrees
asked by Joan 
Algebra
Need help with these 2 please 19. Nancy invests $100 in one account for 10 years at a 9% interest rate compounded annually, and she invests $150 in an account for 10 years at a 6% interest rate compounded semiannually. How much money will she have in
asked by mysterychicken 
Chemistry
1. Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g 2.Mass of flask, boiling chips,and foil cap. 82.657 3. water bath temperature C is 95.0 C 4. Barometric pressure inches of Hg 30.09 5. Accepted molar mass of unknown is
asked by Anonymous 
Chemistry
Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g 2.Mass of flask, boiling chips,and foil cap. 82.657 3. water bath temperature C is 95.0 C 4. Barometric pressure inches of Hg 30.09 5. Accepted molar mass of unknown is
asked by Anonymous 
biology
Imagine that your a scientist digging for fossils on a lowlying grassland. Many of the fossil you dig up seem to belong to creatures adapted to live in the mountains. Million of years ago, what do dou think the landscape looked like in the region where
asked by hudi udman 
biology
Wasps are multicellular consumers with complex organ sytem. To what kingdom do they belong?
asked by hudi udman 
Statistics
What are the values of the mean and standard deviation of a normal standard deviation
asked by Jacob 
phyics/moon
The acceleration due to gravity on the Moon's surface is onesixth that on Earth. What net force would be required to accelerate a 20kg object at 6.5 m/s2 horizontally on the moon? A) 1.3 N B) 20 N C) 33 N D) 120 N E) 130 N
asked by sam 
Statistics
fawnsbetween one and five months old have a approx body weight of u=27.2 kilograms and a standard deviation of o= 4.3 kilograms let x be the the weight of the fawn in kilograms convert the following x intervals to z intervals. x=
asked by Jacob 
Statistics
how to sketch the areas under the standard normal curveover the indicated intervals and find the specified areas to the left z=0 to the left z=0.47 to the left of z=0.45
asked by Jacob 
Statistics
find z such that 5.2% of the standard normal curve lies to the left of z
asked by John 
math
the first term of a sequence of numbers is 4. each term after the first is 4 more than half the preceding term, what is the fourth term of the sequence?
asked by peter 
math
a man buying a new car can choose among 6 different colors, 3 different steering wheel styles, and 4 different audio packages? what is the total number of different combos he can choose?
asked by peter 
math
what can x equal if 4 < 2x+1/x3 < 7
asked by peter 
Statistics
Suppose x has a distributionwith u=72 and 0=8 if random samples of size n=16 are selected, can we say anything about the x distributin of sample means if the originalx distribution is normal can we say anything about the x distribution of random samples of
asked by John 
math
if the lengths of triangle RST are r, s and t, where r=2, s=4, and t is an integer, what is one possible value of r+t/s?
asked by peter 
Math
I need help with these problems for a test. 1. Find the inverse of the onetoone function. f(x)=5x+1/4. 2. The height of the water, H, in feet, at a boat dock t hours after 7 am is given by E=7+4.4cos pi/35 t, where t is time measured in seconds. Find the
asked by David 
chemistry
What are the final products when CaCl2 x 2H20 are heated strongly?
asked by Alisha 
biology
Amoebas are unicellular consumers that lack complex organ systems and are found in damp enviroments. To what kindom do they belong
asked by hudi udman 
biology
A species of bird with three toed feet feeds on worms and crawling insects. Over a period of several thousand years, the ocean level rises, and the region where the bird lives is flooded. Over several thousand years or so the birds descendant evolve webbed
asked by hudi udman 
biology
In Aristotle's system of classification, which two animals would be grouped together (A)segulls and lizards (B)seals and bats (C)snails and butterflies (D)whales and fish
asked by hudi udman 
algebra
Which is greater 3^31,9X3^30 or 3^33?
asked by Yolanda 
Statistics
Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were
asked by John 
Chemistry
okay so I have this question; Co3^2 is a component of soil and can neutralize acid deposition. Sketch the pH curve for soil containing carbonate ions that undergoes continual addition of hydronium ions from acid deposition. Include relevant chemical
asked by Jessica 
SCI 162
Case Study: Gayle and Patrick Read the following case study about Gayle and Patrick. You may also click on the Audio: Thinking It Over if you prefer to listen to the case study. After reviewing the case study, answer the questions on below. Gayle and
asked by Brittany 
Math
How do you factor this completely? 6xx^3x^2
asked by . 
light
A failure of the redsensitive nerves in the eye to respond to light properly causes?
asked by Anonymous 
Chemistry
Calculate the theoretical yield of barium sulfate using your assigned volume. I was assigned 30mL of BaCl2. The balanced equation is: H2SO4 + BaCl2 > 2HCl + BaSO4. In the experiment we used .20M BaCl2, .60M H2SO4 and 1M HCL
asked by Sam 
PHY
A good scientific theory is one that has survived extensive scrutiny by the scientific community and best explains observable facts. What are some observations about our solar system that are explained by the nebular hypothesis? Are there any observations
asked by Anonymous 
physics
When a force is applied to an object with mass equal to the standard kilogram, the acceleration of the mass is 3.25 m/s2. When the same magnitude force is applied to another object, the acceleration is 2. 75 m/s2. What is the mass of the object? What would
asked by Sarah 
accounting
How do I figure out the cost of merchandise purchases for the year?
asked by Thara! 
physics
A spring scale is attached to a cart and is being pulled with a force of 10.5 N. If the car moves to the right with a constant velocity. What are the magnitude and direction of the frictional force?
asked by Sarah 
algebra
jack bought 3 slices of cheese pizza and 4 slices of mushroom pizza for a total cost of $12.50. grace bought 3 slices of cheese pizza and 2 slices of mushroom pizza for a total cost of $8.50. whay is the cost of one slice of mushroom pizza?
asked by Anonymous 
Algebra
Need help with these 2 please 19. Nancy invests $100 in one account for 10 years at a 9% interest rate compounded annually, and she invests $150 in an account for 10 years at a 6% interest rate compounded semiannually. How much money will she have in
asked by mysterychicken 
Math/ Algebra
Post your responses to the following. Answer each question in a separate paragraph: Techniques that can simplify solving equations and inequalities are to clear fractions and decimals when solving linear equations and inequalities. 1. Demonstrate how
asked by Amanda 
English
Is Don in? (telephone)  He is not in at the moment. (What other expressions can we use instead of 'at the moment'?)
asked by rfvv 
English
1. He scored 98 % in/on the English test. 2. He scored 98 points in/on the English exam. (Which expression is correct? Do we have to use 'in' or 'on'?)
asked by rfvv 
math
How do you complete NumberGrid Puzzles?
asked by Jose Morales 
9th grade
How do you solve acbcad+bd
asked by olivia 
chemistry
Using the Le Chatelier's principle, predict the direction of the net reaction in each of the following equilibrium systems, as a result of increasing the pressure at constant temperature. a)N2(g) + O2(g) ==> 2NO(g) PCl3(g) + Cl2(g) COCl2(g)
asked by karl 
college
3. What are the common elements of healthy relationships
asked by Anonymous 
algebra
factor completely: 22xy^3+55x^4y^2
asked by kam 
algebra
put into scientific notation (3.7x10^4)(8.1x10^7
asked by kam 
Chemistry
What volume of hydrogen would be produced by the reaction of 2.00g of Mg with an excess of hydrochloric acid at STP. Using this equation Mg+HCl
asked by Carmen 
Physical EducationHockey
In what year and at which Olympic games did the Indian hockey team use the Indian dribble?
asked by Khylle 
Career Studies
Hi, I have to do a visual presentation on a current economic or social trend. I'm not allowed to use bristol board/posters or powerpoint/slideshows, because she wants us to be creative. What are some trends I could choose from, and what kind of
asked by Emma 
Macroeconomics
Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, economy has experienced increased in the growth rate in productivity. Can you give reasons why US productivity growth started to increase
asked by Sara 
social studies
PLEASE HELP FAST. i have a social final tmr. and if i don't get 50 questions right im gonna fail socials 9!!! does anyone noe a really good website for the entire socials 9 notes? the textbook im using is called "crossroads" PLEASE HELP. FAST !! i cannot
asked by Anonymous 
English
1. I am 100% about that. 2. I am 100% sure about that. 3. I am positive about that. 4. I am 100% positive about that. 5. I am 100% certain about that. (Are they the same and grammatical?)
asked by rfvv 
business
Your friend has asked you why the price of bananas is higher during certain times of the year. Using what you have learned about the laws of supply and demand, explain to your friend how the market affects price.
asked by kim 
MathAlgebra
4xc=29+3
asked by mohan 
biology
1. What adaptive advantage did seeds provide  Notes: Embryo is protected in a seed. The seed is modified for dispersal which is good b/c…. Once landed, the seed can remain dormant until… The rains come… The
asked by mike 
Biology
Using the words hypertonic, hypotonic, and equilibrium correctly , predict what happens when, A) A living cell is placed into fresh water and B)A different living cell is placed into salt water.
asked by Christine 
Math
how to round 427,685 to the nearest thousand?
asked by Karen 
delinquency
how dose gender affect delinquency
asked by Sade 
algebra
Find the product.(x11)(x^2+6x3).
asked by michael