Questions Asked on
September 12, 2009

physics
you are standing on one side of the river. Figure out the width of the river. All calculations have to be made on the side you are standing on. You cant step into the river or cross it. You may use the 2 laws ( sine and cos ). no guessing allowed. has to
asked by just wondering 
Physics
A shotputter throws the shot (mass = 7.3kg) with an initial speed of 15.0 m/s at a 33.0 degree angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.00m above the ground.
asked by Jordan 
Physics B
A car slows down from 23 m/s to rest in a distance of 85m. What is its constant acceleration? I got 6.224, but a friend was telling me it's 3.11 and that I had to divide by 2. Why is that?
asked by Bob 
Math
A farmer with 8000 meters of fencing wants to enclose a rectangular plot that borders on a river. If the farmer does not fence the side along the river, what is the largest area that can be enclosed? Does that mean I have to consider it a triangle?
asked by muffy 
Math
A boat, whose speed in still water is 2.80m/s , must cross a 280m wide river and arrive at a point 120m upstream from where it starts. To do so, the pilot must head the boat at a 45.0 degrees upstream angle. What is the speed of the river's current?
asked by Anne 
Physics
A tennis ball is dropped from 1.41m above the ground. It rebounds to a height of 0.932 m.The acceleration of gravity is 9.8 m/s2 .(a)With what velocity does it hit the ground?(Let down be negative.) Answer in units of m/s. (b)With what velocity does it
asked by sandhu 
9th grade
Wat is square root spiral
asked by Anonymous 
math
A projectile is launched from ground level to the top of a cliff which is 195m away and 135m high. If the projectile lands on top of the cliff 6.9s after it is fired, find the initial velocity of the projectile ((a)magnitude and (b)direction. Neglect air
asked by Cassandra 
Earth Science
wat is the difference between cooperation and peer review? plz help and thank you
asked by 2to1tony 
physics
Calculate the acceleration due to gravity on the moon. The moon\'s radius is about 1.74 E 6 m and its mass is 7.35 E 22 kg ok aparently there\'s an easier way to do this I applied Newtons second law in the radial direction net force radial = m (radial
asked by physics 
Statistics
Assume that the points scored by the winning teams for all NCAA games follow a bellshaped distribution. Using the mean of 76.5 and the standard deviation of 7, estimate the percentage of all NCAA games in which the winning team scores 84 or more points.
asked by Shellie 
English
Why deemphasizing negative test results in a report on your product idea is unethical practice?
asked by Jimmy 
Physics
A projectile is launched from ground level to the top of a cliff which is 195m away and 135m high (as shown in the figure ).If the projectile lands on top of the cliff 6.9s after it is fired, find the initial velocity of the projectile a)magnitude
asked by Jannie 
AP bio
My teacher said this is a very hard question, but I'm trying to make an attempts. Can you guide me? A biologist places a plant in a closed chamber. A sensor in the chamber maintains the carbon dioxide level at the normal atmospheric concentration of 0.03%.
asked by muffy 
algebra
how do you write and solve an equation to determine the radius of mars the radius of earth is 6378.1 km, which is 2981.1 km longer than the radius of mars
asked by delisa 
biology
Most automobiles have watercooled engines. What must be true about a solution that can replace water in the cooling system, such as antifreeze? I know this is the second time I'm posting this question, but it's been hours and still no one's responding.
asked by lamiya 
math
Shelby can paint a room in 4 hours. Zoe can paint the same room in 7 hours. How long will it take them to paint the room if they work together? If they start 9:30a.m., and want to see a movie that is playing 45 minutes from their house and starting 12:00
asked by muffy 
Number Line
If an integer a is pictured on the number line then the distance from the point on the number line that represents the integer to the origin is ƒaƒ. Using this idea answer the following. a. Explain why ƒa 2 bƒ is the distance between the points that
asked by Sue 
home economics
resaerch pictures in books and magasines showing other methods of disposal of fullness
asked by ash 
Math
An airplane is heading due south at a speed of 590km/h. If a wind begins blowing from the southwest at a speed of 65.0km/h (average). Calculate magnitude of the plane's velocity, relative to the ground. Calculate direction of the plane's velocity, relative
asked by Anne 
economics
Question 4 (1.00 points) The multiplier effect indicates that: a. a decline in the interest rate will cause a proportionately larger increase in investment. b. a change in spending will change aggregate income by a larger amount. c. a change in spending
asked by thabo 
physics
we can say that the force of gravity is equal to mass times acceleration were the acceleration is equal to gravity sense gravity is an acceleration because of newtons second law force = mass times acceleration hence Fg = mass times acceleration Fg = mass
asked by physics 
Physicscalc
Suppose the position of an object is given by >r(vector) = (3.0t^2*ihat  6.0t^3*jhat)m. Where t in seconds. Determine its velocity >v as a function of time t. Determine its acceleration >a as a function of time t. Determine >r at time t = 2.5 s.
asked by Hannah 
math
the length of a rectangle is 5 ft more than twice the width. a)if x represents the width of the rctangle, represent the perimeter of the rectangle in terms of x. b) if the perimeter if the rectangle is 2 ft more than eight times the width of the rectangle,
asked by anthony 
english
There are a few questions about the novel The Scarlet Letter that I am not to sure about. Can someone please check them. True of False 1) Chillingworth escaped from Indian captivity by drugging his guards with an herb potion? My answer was true. 2)
asked by Hannah 
biology
1. how do molecules of a polar compound differ from those of a nonpolar compound? 2. What happnens when ionic compounds are mixed with water? 3. what is capillarity? 4. Critical Thinking: Most automobiles have watercooled engines. What must be true about
asked by lamiya(again) 
Math
Fred is an old man. He lived oneeighth of his life as a boy, onetwelfth as a youth, onehalf as a man and has psent 28 years in his old age. How old is Fred now?
asked by Demora 
English
Taking a computer home to complete a workrelated assignment. Is it ethical or unethical? When an individual takes a job they ensure their employer that they will work their very best, and distribute quality work. By any means the worker is required that
asked by Jimmy 
Managerial Economics
Textbook authors typically receive a simple percentage of total revenue generated from book sales. The publisher bears all the production costs and chooses the output level. Suppose the retail price of a book is fixed at $50. The author receives $10 per
asked by Jan 
Math
The officejet printer can copy Sue's dissertation in 18 min. The laserjet printer can copy the same document in 22 min. If the two machines work together how long would they take to copy the dissertation? Any help would be greatly appreciated.
asked by Sue 
math
soybean meal is 18% protein, and cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360lb mixture that is 17% protein. how many lbs should be cornmeal and how many lbs should be soybean be?
asked by karen 
Math
Suppose that the river was moving with a velocity of 3 m/s, North and the motor boat is moving with a velocity of 4 m/s, East. If the width of the river is 80 meters wide, then how much time does it take the boat to travel shore to shore? What distance
asked by Chelsea 
Managerial Economics
Help me on this one please? labor usage 3,7,9,11,17,17,20,24,26,28,30 output 1,2,3,5,8,10,15,18,22,21,23 a. does a cubic equation appear to be a suitable specification, given these data? You may construct a scatter diagram to help with this question.
asked by Jan 
Algebra
How do I find the center and radius of this equation? x^2+y^2+6y+2=0 I don't know how to complete the square for x^2.
asked by John 
Physics
ok I'll be using a home work problem to ask the question. I'm not asking for help on the question I got the correct answer just need to understand this concept better. Calculate the acceelration due to gravity on the Moon. The moon's radius is about 1.74 E
asked by QUESTION 
Biochemistry
You wish to measure the change in G°'for the hydrolysis of ATP: ATP > ADP + Pi but the equilibrium for the hydrolysis lies so far toward products that analysis of the ATP concentration at equilibrium is neither practical nor accurate. However, you have
asked by Mallory 
physics
A Hollywood Daredevil plans to jump a canyon on a motorcycle. There is a 15 m drop and the horizontal distance originally planned was 60 m but it turns out the canyon is really 69.6 m across. If he desires a a 3.2 second flight time I've figured out the
asked by Andy 
psychology
describe neurotransmitters in terms of what they are, their general function within the body, and their impact on behavior. discuss the connection between neurons and neurotransmitters. pick two neurotransmitters and discuss their general functions in our
asked by jenny 
physics
A Hollywood Daredevil plans to jump a canyon on a motorcycle. There is a 15 m drop and the horizontal distance originally planned was 60 m but it turns out the canyon is really 69.6 m across. If he desires a a 3.2 second flight time a. what is the correct
asked by Andy 
Communication Law Studies
How might a judge apply the different theories of Freedom of Speech and Freedom of Expression in attempting to stay within the precedents of the rulings of the Supreme Court when attempting to decide a case.
asked by Katlyn 
algebra
Simplify the expressions. 1. (6c^2)(2c^23c) 2. (5d10d^2)(6d^3) 3. x^3(4x+3x^2)(x^2) 4. (8y^2)(3y4)+6y^25y^3 5. (18m/4n) / (1/4m) 6. (5x^2) / (2x/15) 7. (16x+9) / (4) 8. (324x) / (8) I don't get how to do these. Please help!! Thanks a lot!!
asked by lamiya 
science
what is the difference between endangered species and threatened species
asked by francine 
English
1. He is so kind to help me. 2. He is so kind as to help me. (Which one is correct? Are both OK?) 3. Hanok is a traditional Korean house. 4. Hanok is a Korean traditional house. 5. Hanbok is a traditional Korean dress. 6. Hanbok is a Korean traditional
asked by John 
Socials
what three rules should be applied when using primary source documents to make sure that they are reliable and accurate? Three rules which should be applied when using primary source documents to make sure that they are reliable and accurate are that they
asked by Rebecca 
Law
I need the Justice mamman Nasir boundary commission report on ondo state and Delta state of Nigeria boundary dispute
asked by Ajele Seinde 
biology
4. Both photosynthesis and aerobic cellular respiration are examples of complex metabolic pathways, consisting of many linked chemical reactions that require enzymes to function. Briefly, explain two attributes of enzymes in catalyzing chemical reactions
asked by lisa 
business
what are the ethical issues relating to production. how do they impact a small business..negative or positive impacts
asked by Maureen 
Earth Science
WAT IS THE DIFFERENCE BETWEEN SCIENCE AND TECHNOLOGY? plz help and thank you
asked by 2to1tony 
algebra
The equation y=  1777x + 27,153 can be used to predict the number y of gun deaths in the United States x years after 2000 that is, x=0 corresponds to 2000, x =3 corresponds to 2003, x = 4, and so on. Predict the number of gun deaths in 2004 and 2008, in
asked by help, help, help 
algebra
Graph the line containing the given pair of points and find the slope (1,0) , (5, 3) 30/51 + 3/4 so the slope would be M=3/4 but how do you graph 3/4? Am I looking at this correctly.
asked by confused 
algebra
Multiply 5/9 * (6/5) Please show me in steps I understand better this way. Not just the answer
asked by algebra yuck 
algebra
The equation y= 1777x + 27,153 can be used to predict the number y of gun deaths in the United States x years after 2000, that is x=0 corresponds to 2000, x =3 corresponds to 2003, x=4 corresponds to 2004, and so on. Predict the number of gun deaths in
asked by Need help 
Algebra
How come (2xy^2)^3 is equal to 8x^3 y6? I thought that six exponent should be a five since you add them together. So 2 and 3 should be five. But why is this?
asked by Elisa 
Mathy
On a 14day vacation, Glenn increased his caloric intake by 1500 calories per day. He also worked out more than usual by swimming 2 hr a day. Swimming burns 666 calories per hour, and a net gain of 3500 calories adds 1 lb of weight. Did Glenn gain at least
asked by Sue 
Socials
What is empathy? Empathy is identification with and understanding of another's situation, feelings, and motives is this right , if you think you could add anything else then please do so, maybe your ideas could be useful for me.
asked by Rebecca 
algebra
solve by the substitution method 9x + 5y = 25 x = 7  3y Could someone help with steps here also?
asked by algebra yuck 
algebra
Help x + 3y =2 (1) x = 9 3y (2) solve the system of equations
asked by To Mrs. Sue 
physics
prove the tame taken when a ball is thrown 3 times high and form 60 degree from it's previouse degree of 30 degree
asked by jhone 
math
janet spent 1/3 of study time on one subject and 2/7 on another subject. what fraction of her study time remains?
asked by Anonymous 
Algebra 1 Please bobpursley again
Thanks to everyone for trying to help me. This is not really a question but an answer to what grade level this promblem is for my son is in ninth grade. Thank You all again
asked by Mary 
chemistry
I need help converting 294.5nm to cm
asked by Selenee 
english
what is a direct and indirect support when writing an essay? what makes it direct or indirect?
asked by steph 
Calculus
I need to find the next 3 terms...but I can't figure out what the rule for this! 3, 5, 3 1/2, 4 1/2, 3 3/4, 4 1/4, 3 7/8, 4 1/8... please help! thank you so much
asked by Farhin 
algebra
One can make predictions for certain events based on a) scientific evidence b) newspaper stories c) frequency of occurence d) personal observation Thank you!!!
asked by Philine 
health
What is an example of a shift from inpatient to outpatient services?
asked by april 
Earth Science
can someone help me? wat is the difference between the scientific theory and the scientific law? plz and thank you
asked by 2to1tony 
algebra
please please explain solve using the addition and multiplication principles 5 + 2x
asked by algebra yuck 
algebra
you helped me with this earlier I think I got it. 2004 gun deaths would be 1777 x 4 years + 27,153 = 20,045 2008 gun deaths would be 1777 X 8 years + 27, 153 = 12, 937
asked by algebra yuck(atten Mr. pursley 
chemistry.
They are__________Mol of carbon atoms in 4 mol of Dimedthysulfoxide A: 2 B: 6 c: 8 D: 4 E: 3 My answer is C:8 but can any one help me with the method to show the right answer. 2. There are ___________Sulfur atoms in 25 molecules of c4H4S2. My answer is
asked by Richard 
algebra
could you help me figure out how to do this find the domain of the function P(x)=^2 2x + 10
asked by To Mrs. Sue 
Algebra 1
I had a quiz in math. The problem is: 4.3+(7.2) I got the answer 11.5 and my teachr marked it wrong. When she gave us a chance to fix the errors for half credit, I tried it again. But I KEEP getting the same answer. What am I doing wrong?
asked by Cecilia 
Wild Life Biology
What are 5 different animal behaviors that are instictive? What brings these behaviors out? One is sense. Animals can sense their direction or prey.
asked by Taylor 
AP Bio
This is the summary formula for photosynthesis: 6CO2+6H20 yields C6H12O6+6O2 Refer to the summary formula for photosynthesis. If you know the number of molecules or moles of any of the reactants used (or products produced), how would you calculate the
asked by muffy 
Algebra
Simplify a^5 b^3 _______ ab^8 Answer: a^4 b^5 Is this correct?
asked by Anonymous 
English
I'm not sure how to quote a dialogue from a play in my essay. And if it includes a line such as: WALTER(With immense passion) Because it is life, Mama! Do include the part in parethesis?
asked by Fiona 
algebra
Could you help in the steps to this problem 5/2x + 1/4x = 5/4 + x solve
asked by To Mrs. Sue 
algebra
Solve and proof for the value of A. 0.3A+(0.2A0.5)+0.2(A+2)=1.3 I have done this question over and over I keep getting answers like 2 or3.25 but when I sub in thoes answers for A It does not work.
asked by Kay. 
algebra
I have tried this problems all ways please help simplify 5[8(3449)] I get 5 but that can't be right
asked by Need help 
algebra
y 3 >20 The solution is {yy> ? }
asked by Need help 
business
what are potential for growth internally and extenally in small business
asked by maureen 
Wild Life Biology
What are 5 human behaviors that are instictive? What is the stimulus that brings out that behavior? I know that one is laughing. Something funny, surprising, or out of the ordinary can cause this behavior to happen.
asked by Taylor 
history
What is some things that have happened in the past that has made America the nation it is today?
asked by Taylor 
Algebra 1 Please bobpursley
This is what the exact paper says Algebra 1 PAP Creature teacher Obj: TLW creat a creature to represent a varable to be used to simplify an expression. Each student must will be assigned a variable ( mine being C): the student is to create a creature to
asked by Mary 
physics
An object starts falling under gravity from rest. If it completes 9/25 of its journey within the last second. Find the total time taken and the total displacement?
asked by jojo 
algebra
solve 8x (5x +4)=5 3x4 =5 3x4 +4 =5 +4 3x =9 x =3 is this right????
asked by To Mrs. Sue 
Spanish Help?? (URGENT)
Alright for an Spanish assignment I must make skit that talks about family. And I need to roleplay this skit infront of the class. The problem is that in the skit I must teach the class about family members ands their relationship. I need to do this in a
asked by John 
science
what can we do to help animals from dying from pollution
asked by francine 
English
1. to feel happy because you are with someone, or have something. (What is a suitable English word for the definition?) 2. I am not interested in music at all. 3. I don't take interest in music at all. (Are both the same and grammatical?) 4. I don't spend
asked by John 
Math
Okay, this isn't really a big question. I know how to do it, there's just one thing I have to make sure of. The problem is: 5x+4y11x2y I know I need to combine like terms, but which sign do I use to do that. Like if I want to combine 5x and 11x, do I use
asked by Cecilia (Again) 
algebra
solve 8x (5x +4)= 5 The solution is x= 8 is this right
asked by algebra yuck 
MATH Algebra
find the polynomial for the perimeter and for the area x+6 is listed on top a x is listed on left side of a rectangle
asked by Anonymous 
Math
Hello, Having trouble with this one... Solve the inequality: (2x3)(4x)+x^2=>(3x+4)^2 I did 2x3*4x 9x^212x on the left side on the right side: 9x^2+24x+16 I substracted everything on the right side over to the left and made it => zero
asked by muffy 
Math
(x/(x+8))(8/(x8))=(x^2+64)/(x^264) Would the answer be no solution? If so, why? Thanks again.
asked by Sue 
Math156
I can understand in my head how to solve it I can't figure it out on paper. Help......I'm sure this will be easy for someone. The Rental Depreciation Problem. The owner of a rental house can depreciate its value over a period of years, meaning that the
asked by Christy 
TO BOBPURSLEY
acceleartiononmoon= GMassmoon/radius^2 =G 7.35E22/(1.74E6)^2= G 2.43E10= = 6.67E11*2.43E10= 1.62 m/s^2 or as a gravitational field constant= 1.62 N/kg I have no idea why you used the mass of Earth. were did you get a = r^2 Gm from i thought that the
asked by TO BOBPURSLEY 
Earth Science
wat is the difference between a hypothesis and a question? plz help and thank you
asked by 2to1tony 
Algebra 1
Each student will be assigned a variable(mine being C) the student is to create a creature to represent that variable. The student must make 10 creatures for the variable. Then the student must make 10 additional creatures to represent that variable
asked by Mary 
math
x/8+x/12+x/2+28=x ? how to solve this equation? do I have to fine same common denominator?
asked by Demora 
English
1. I should get going. (Is this correct? What other expressions can we use?) 2. It's about time I move along. 3. It's about the time I move along. (Are both OK? Which one is right?)
asked by John 
Algebra
Simplify a^5 b^3 _______ ab^8 Answer: a^4 b^5 Is this correct? {Note: There are no parentheses in either the problem or the answer}
asked by Anonymous 
Math156
make an illustration depicting the number line to find each sum or difference 1 2/3 + 1 5/6
asked by Christy 
MATH Algebra
How do I find the variation constant and an equation of variation where y varies directly as x and y =70 when x=7
asked by Anonymous 
MATH
In a right triangle find the length of the side not given. b=2,c=ã29
asked by Anonymous 
english
I would love a website where I could put in my own sentence and have all the parts of speech identified!!! Can you help me with this? I have too many sentences to post here for help.
asked by tiffany 
visual
how colour is form?
asked by mishka 
biology
what happens if a lysosome bursts in a cell?
asked by lamiya 
Algebra
Simplify x^5 y^2 * xy^2z^6 I got x^6 y^4 z^6 Is that correct?
asked by Anonymous 
Misc
Are there any improvments I can make in this paragraph? also i need a word for the place where there is a . i can't seem to find a word to put in there: This is a new concept, designed specifically for gaming. It was designed so it could allow people
asked by mysterychicken 
Algebra
Simplify n^3 ___ n^6 I got n^3 Correct?
asked by Anonymous 
Wild Life Biology
Our environment changes rapidly with loss of animal habitat increasing daily. Why might an animal's insticts cost it it's life in this situation? So far all I can think of is the deer that sense a sourse of food on the oppiste side of a road. Which causes
asked by Taylor 
college
Historical figures and events of Hinduism
asked by Anonymous 
algebra
For what values of x is the following expression: 1/(x^225). How do you solve and determined the undefined value? Thanks!
asked by Swtpllypb 
Wild Life Biology
Animal Behaviors: If instict is physically based in the brain, and behaviors result from this brain structure, what would you hypothesis happens to the brain during learning?
asked by Taylor 
math
what characteristics do 8,10,15,26,33 have that 5,9,16,18,24 don't have
asked by Dee 
outer space
how made the name science
asked by ran 
HRM
Can someone please give me an example of a training proposal?
asked by Anonymous 
ComputersJava
I am writing a computer program to calculate the number of gallons of water used per day in my household but I want to make sure I am doing the program right. Ex. (toilet usage) # of people in household:5 # of times a person flushes per day:5 # of gallons
asked by Lisa 
biology
why are there a lot of mitochondria? please help! thnanks!
asked by lamiya 
govermennt
what district is palm beach?
asked by smart 
algebra
would the yintercept for y + x = 5 be (0,5)
asked by algebra yuck 
Earth Science
an evidence is a material or data that can be measured and tested to verify their prediction so wat is the difference between evidence and scientific inquiry\ plz help and thank you
asked by 2to1tony 
math/chem
1) 35.72 x 0.00590 2) 0.4832/5.12 3) (6.09 x 10^1)(9.08 x 10^5) 4) (7.79 x 10^4)(4.56 x 10^3)/ (2.93 x10^3)(3.2 x 10^2) 5) 2.3 x 10^2 + 7.16 x 10^5
asked by jay 
Earth Science
an evidence is a material or data that can be measured and tested to verify their prediction so wat is the difference to a scientific inquiry plz help and thank you
asked by 2to1tony 
English URGENT! due date tommorow!!
my teach gave me a project in which i have to make my own advertisement on a product of my choice. i have no idea what product i shud use!! please help!! The due date is tommorow and i still havent done it!!
asked by Amy 
social studies need Quick help
does any one know the 6 rivers that flow east of the rocky moutains plesae i cant find this any where
asked by maf 
Math
I am sorry where did you get a from b=2, c=ã 29
asked by Anonymous 
social studies
which is closer jordan or italy
asked by neily 
to mrs.sue
closer to europe
asked by neily 
math
how do i do the missing factor method to find the quotient of 3/5 divided by 2/3
asked by Christy