Questions Asked on
November 20, 2015

Physics AP
A 32 kg child goes down a straight slide inclined 38∘ above horizontal. The child is acted on by his weight, the normal force from the slide, and kinetic friction. How large is the normal force of the slide on the child?
asked by raquel 
probability theory
3 students; A, B and C, are in a swimming race. A and B have the same probability of winning and each is twice as likely to win as C. Find the probability that B or C wins the swimming race. 3) Given three boxes as follows: Box A contains 3 red, 2 white
asked by charles 
Biology Check answers
1. Which of the following correctly describes the image below? ￼ protein Molecule RNA Molecule amino Acid carboxylic Acid 2. Glucose and fructose are monosaccharides that have the same chemical formula, C6H12O6. However, they do not react the same
asked by Anna 
ChemistryDr.Bob
A solution is prepared by mixing 50.0mL of 0.001 M HCl and 10.0 mL of 0.200 M NaCl. What is the molarity of chloride ions in this solution? My work: (0.001 mol/L)((0.05 L)= 0.005 mol HCl (0.200 mol/L)(0.01 L)= 0.002 mol NaCl 0.005+0.002=0.007 mol of
asked by Sanaya 
Calculus
For the vector field G⃗ =(yexy+3cos(3x+y))i⃗ +(xexy+cos(3x+y))j⃗ , find the line integral of G⃗ along the curve C from the origin along the xaxis to the point (3,0) and then counterclockwise around the circumference of the circle x2+y2=9 to the
asked by A 
chemistry
A voltaic cell consists of a standard hydrogen electrode in one halfcell and a Cu/Cu2+ halfcell. Calculate [Cu2+] when E cell is 0.070 V. NOTE::::::::::::::::::::ANSWER IN SCTIENTIFIC NOTATION PLEASE!!! thank you!
asked by Dalton 
Check My Work Social Studies, Ms. Sue, Reed, Please
1. Geographers use the five themes of geography to (2 points) study world history. organize information. study world music. measure locations.• 2. People invented flat maps because globes cannot show (2 points) names of continents. shapes of
asked by Sam 
math
A low land, 48m long and 31.5 m broad is raised to 6.5 dm. For this, earth is removed from a cuboidal hole, 27 m long and 18.2 m broad, dug by the side of the land. The depth of the hole will be? A man rows 12 km in 5 hrs against the stream, the speed of
asked by adam 
History...Please Help
PHOENIX, Sept. 20, 2012 Arizona's new immigration law takes effect this week. According to the law, police officers must check the status of anyone who may be an undocumented immigrant. Officers have the right to decide who is checked under this law. A
asked by Samantha 
CHEMISTRY
2BrF3(g)Br2(g) + 3F2(g) STANDARD ENTHALPY?
asked by KD 
Statistics
A survey of physicians in 1979 found that some doctors give a placebo to patients who complain of pain for which the physician can find no cause. If the patients' pain improves, these doctors conclude that it had no physical basis. The medical researchers
asked by Tim 
MATH ANSWER HELP
1. There are four kinds of road signs in a certain town. The number of each kind is shown. What is the ratio of the number of school signs to the number of stop signs? signs (1 point) 9 to 10 10:9 ten over twentyfour 9:24 2. Which ratio is equivalent to
asked by PINKIE PIE 
math
A sum is invested at compound interest payable annually. The interest in two successive years was Rs 900 and Rs 981. Find the sum. If the sum of all internal angles and sum of all external angles of a regular polygon are equal, then the number of sides of
asked by adam 
Financial Mathematics
Crosby Inc. has an 11% required rate of return. It does not expect to initiate dividends for 20 years, at which it will pay $4.00 per share of dividends. At that time, Crosby expects its dividends will grow at 6% forever. What is an estimate of Crosby's
asked by Unknown. 
Math
A football is punted. Its height, H metres is given by the quadratic relation with equation: H = 5t2 + 21t, where t is the time in seconds after the punt. I tried to do this question on a test but I just ran out of time How is the easiest and quickest way
asked by Fred 
Math
A principal earns 7% per year simple interest. How long will it take for the future value to quadruple?
asked by Merry 
U.S Hisotry. Please check my answers.
Why is the United States often referred to as the melting pot? Various cultures from many countries have "melted" together to create what America is and how American culture is defined today** Most American citizens' native customs and traditions will
asked by Dani 
math
A supervisor finds the mean number of miles that the employees in a department live from work. He finds mc0221.jpg and mc0222.jpg. Which statement must be true?
asked by kiki 
Algebra 2
Perimeter is 400 ft and the area 9100 ft, give possible widths.
asked by Help 
Chemistry
Balance the redox reaction below using the halfreaction method. Bi3+(aq) + Co(s)Bi(s) + Co2+(aq)
asked by Shahzaib 
HELP RIGHT AWAY ( ASAP)
1. There are four kinds of road signs in a certain town. The number of each kind is shown. What is the ratio of the number of school signs to the number of stop signs? signs (1 point) 9 to 10 10:9 ten over twentyfour 9:24 2. Which ratio is equivalent to
asked by Apple Jack 
Statistics
Find the critical value za/2 that corresponds to a=0.12.
asked by tyler 
Physics
At the airport, you pull a 15kg suitcase across the floor with a strap that is at an angle of 45 degrees above the horizontal. Find the normal force and the tension in the strap if the suitcase is pulled at a constant speed and the coefficient of kinetic
asked by Alyyssa 
geometry
x^2+2xy15y^2 is this factorable?
asked by lindsey 
Science
Thomas left the White House and traveled toward the capital at an average speed of 24 km/h. Jasmine left at the same time and traveled in the opposite direction with an average speed of 55 km/h. Find the number of hours Jasmine needs to travel before they
asked by larney 
English
1. I saw tom three days ago. 2. I saw tom three days before. (Are both OK?) 3. I arrived there after three days. 4. I arrived there three days after. 5. I arrived there three days later. (Which ones are grammatical?) 6. I will meet Tom after three days. 7.
asked by rfvv 
English
Which of the following statements would not be a main theme in The Call of the Wild? a. Always trust your gut*** b. Only the strong survive c. We are driven by our ancient animal instincts d. The beast within us all will come out under the right
asked by Kaai97 
Precalc Trig
here's the question: solve for cos(2theta)=1 if you graph r= cos(2Theta) then graph r=1 you find that there are four places where the graphs intersect. however, when solved algebraically, there are two solutions which can be represented in an infinitely
asked by Wulramm 
Math
The question is: The area of a rectangle is given by the expression 8x+44y. Length is 2x+11y. What is width? I answered 4x & 4y, yet that was wrong. Can you help explain why? Thanks
asked by Kyle 
English
Please check to see if I'm correct. I have to find the complete subject and simple subject in this sentence. There was one student still taking the exam when the bell rang. student is the simple subject and there was one student the complete subject Am I
asked by Jessie 
Physics
Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. An industrial flywheel has a 1.7 m diameter and a mass of 270 kg . Its
asked by Jay 
Science
if one third of 100g of 27% aqueous sugar solution is taken in a beaker and 10g of sugar is added to it , the concentration of the resulting solution will be?
asked by Shivangi 
health
What is an example of a dissociative drug that distorts perceptions of sight and sound? A. Cocaine B. Heroine C. Ketamine and PCP D. All of the above
asked by jasmine 
science
use the image below to think about how continental drift may have occurred. then answer the following question: according to the continental drift theory , which the following land regions should show the greatest similarities in fossil type A. east coast
asked by science help 
math
18 mil at .25 starting the meter at $2.50 is how much
asked by monica vargas 
conversions
How to calculate the square meters of a roll that is 30500 LF x 117" x 75 gauge
asked by Kevin 
Algebra
Compare the number in each exercise using an inequality symbol 1. 4/3, square root of 2 2. 7/11, 0.63 3. 22/25, 0.8
asked by Anonymous 
Algebra
1.Write an equation in slope intercept form of the line that passes through the given point and is parallel to the graph of the given equation. (2,2);y=x2 A.y=2x B.y=2x ******** C.y=1/2x D.y=x 2.Write an equation in slope intercept form of the line
asked by Mike 
UDC
3no2 + h2o2 = 2hno3.
asked by Radiya 
English
1. A champion is a rich person who helps people in need. 2. A champion is a farmer who grows fresh fruit and vegetables. 3. A champion is a mother who devotes herself to caring for kids. 4. A champion is a fire fighter who does his best to extinguish the
asked by rfvv 
algebra
No. 2 alyssa has some coins in her purse consisting of pennies, nickels and dimes. She has 2 more nickels than dimes and thrice as many pennies as nickels. If the total is 0.52 dollars how many coins of each kind does she have.
asked by Chris 
English
How would Ronald Reagan's Berlin Wall speech corrupt? Also, is this quote a logical fallacy? "Yet it is here in Berlin where the wall emerges most clearly; here, cutting across your city, where the news photo and the television screen have imprinted this
asked by Emma 
Physics
A car of mass 1390 kg rests on a hydraulic lift with a piston of radius 0.26 m that is connected to a second piston of radius 0.033 m. If the car is just barely lifted off the ground, what is the force at the second piston? I Tried F1/F2 = r1^2 / r2^2 ==>
asked by Noel 
Physics
A set of density rods is designed to illustrate the concept of density. The idea is to create cylinders of equal diameters and masses, but varying lengths, to show which have the largest and smallest densities. (a) Derive a formula that will predict the
asked by Alyssa 
Math
what are the inputs of the following funtions {(3,2),(4,2),(8,3),(7,1)}
asked by Taylor 
English
1. When MacNeil asks, "When before human history has so much humanity collectivity surrendered so much of its leisure to one toy, one mass diversion?" What is this persuasive technique called? A. repetition B. Generalization C. a rhetorical question D. a
asked by [._.] 
writing skills
Instead,base your forecast on sensible proverbs that have stood the test of time. what correction should be made to this sentence?
asked by Anonymous 
Zola business School
Maths Literacy,Tourism,Business Studies,Economics Iam in grade9 next years I want to choose these subjects and I also want to know the careers are available for those subjects that you work in a office
asked by Ambesiwe 
chemistry
According to the reaction below, how many grams of lithium oxide could be produced from 3.1 moles LiCl?
asked by chemo 
chemistry
According to the reaction below, how many grams of lithium oxide could be produced from 3.1 moles LiCl? 4 LiCl + O2 → 2 Li2O + 2 Cl2
asked by chemo 
Math
Given that an equation of the form f(x) = x^n has n solutions, and that the solutions are equally spaced at a given radius in the complex plane, discuss why complex solutions must occur in conjugate pairs when .
asked by April 
Math
Simplify and express in scientific notation (2.75x10^9)(0.5x10^5) (2.75x0.5)(10^9×10^5) =1.375×10^14
asked by Cody 
Physics 12 college preparation
Find the work done by a traveller carrying a suitcase of mass 8.2 kg by pulling up on it when walking forward for a distance of 120 m . Explain your reasoning
asked by Ahmed 
World History
Leaders in the industrialized world see booming populations in the least industrialized nations as a threat to? a= the continued expansion of their own nations b= technologymadvancement c= the global balance of power d= the existing food supply
asked by Steve 
Science
I need an idea for an essay about muscles
asked by PeculiarUnicorns 
math
for every 12 people crossing the street, 7 of them used the pedestrian lane and the rest did not. if 48 people crossed the street, how many did not cross in the pedestrian lane? Hi Steve, the choices of answers to this question are the following: a)28;
asked by tante 
personal trainer
Chris is a high school student and is eager to gain some muscle mass. He eats a diet that consists primarily of processed foods (fast food, cafeteria, etc.) Chris is anxious to get stronger so that he can go out for the wrestling team. CLI
asked by Ana smith 
Math help please
Please help I'm failing Which of the following is a rational number Pie Square root 3 Square root 2 1.3*****
asked by Mysterydude 
Biology
6. The gene for a large single eyeball is coded by the gene sequence TTCGCTGAA. Let’s go through transcription… DNA Strand TTCGCTGAA mRNA Strand _____________________________ 7. Now, let’s look at the gene for green body color, which is
asked by Anonymous 
Government
What is the importance of selective incorporation
asked by Anonymous 
World History
1.) INDUSTRIAL REVOLUTION: Why is there such a massive gap in the world today between rich and poor nations? 2.) IMPERIALISM: How does imperialism continue to affect the world we live in? 3.) WORLD WAR I: How did World War I and new scientific advances
asked by Ellie 
Physics
A builder wants to build a corbeled arch, based on the principle of stability, what minimum number of bricks, each 0.30 m long, is needed if the arch is to span 1.0 m? Be sure to include in the total number of bricks one brick on top and one brick at the
asked by Anonymous2.0 
math
Two truck drivers leave the same rest stop at the same time to travel in opposite directions.One travel at an average rate of 52 mph and the other average 56 mph.In how many hours will they be 72 miles apart
asked by nisha 
Calculus
Solve the initial value problem 2y" + 5y'  3y = 0 y(0) =7, y'(0) = 7 Can someone please help. The answer I came up with is 35 exp(x)  28 exp(3x/2), but my answer is wrong.
asked by Latoya 
Calculus
Find the solution t the differential equation dz/dt = 2te^z that passes through the origin. My answer is In (1t^2), but my answer is populating as incorrect. Can someone help please?
asked by Latoya 
trinometry
consider the polar equation r=7 cos(θ+ pi divided by 4) A) change the equation to rectangular coordinates. B) by completing the square, obtain the Standard form of this wellknown equation. I NEED HELP WITH THIS PROBLEM I DON'T KNOW WHERE TO START.
asked by jojo 
Physics
A baseball player dives into third base with a speed of 7.90 m/s. If the coefficient of friction between the player and the ground is 0.41, how far does the player slide before coming to rest?
asked by Alyyssa 
science
a trait developed through learning is a ?
asked by lola 
English
The author of The Call of the Wild shifts the setting from California to Alaska in order to a. depict how Buck becomes a tough survivor b. illustrates how money can change a character's perspective c. show John Thornton's values remain unchanged even under
asked by Kaai97 
English
"Dat Buck for sure learn queek as anyt'ing" is an example of what? a. dialect*** b. exposition c. point of view d. theme
asked by Kaai97 
math
The cost price of 8 books is equal to the selling price of 6 books. Find the gain or loss per cent. Ashis purchases eggs at the rate of Rs 90 for 150 eggs and sells them at Rs 85 per hundred. Find his gain or loss per cent. Pls pls help***
asked by adam 
US Legal system and branches of government
write 200 word on the three executive offices which affect the health information profession.
asked by Elizabeth 
US Legal system and branches of government
consider the definition of private law and public law. Discuss the difference between these two sources of law. support with example.
asked by Elizabeth 
math
Larry borrowed $800.00 at 6% for one in a half years?Explain and solve the problem.
asked by Eilundra 
English
Which of the following statements would not be a main theme in The Call of the Wild? a. Always trust your gut*** b. Only the strong survive c. We are driven by our ancient animal instincts d. The beast within us all will come out under the right
asked by Kaai97 
History
1.As a result of the French and Indian War, ___ claimed all land west of the Mississippi River, and ___ gained control of all land east of it. a. Indians; Britain b. Spain; France c. France; Indians d. Spain; Britain If you have any other answers to this
asked by Rachel 
math
Suppose payments were made at the end of each month into an ordinary annuity earning interest at the rate of 3.5%/year compounded monthly. If the future value of the annuity after 12 years is $50,000, what was the size of each payment? (Round your answer
asked by phalyn 
Physics
Four bricks are to be stacked at the edge of a table, each brick overhanging the one below it, so that the top brick extends as far as possible beyond the edge of the table. *The construction in stable equilibrium, bricks must extend no more than (starting
asked by Anonymous2.0 
Math 1350
Mrs. Smith's classroom can hold at the most 30 students. Her first period class had 4 boys for every 3 girls. When 3 boys and 1 girl were added to the class, the new ratio became 3 boys to 2 girls. How many total students are now in the class? Show all
asked by Ne Ne 
Math
Over the past week, 34 baby boys were born at the hospital. This was 54% of all babies born. How many girls were born over the past week?
asked by Ken 
Math 1350
About eleventwelveths of a state park is covered by trees, oneeighteenth is covered by a lake, and the rest is covered by open fields. What part of the state park is open fields?
asked by Ne Ne 
Physics
If a 180 pound body is dropped from an airplane 5 miles (26400 ft.) up: a/ how long would it take for the body to reach the ground? b/ what would be the maximum speed the body would attain in miles per hour? Close approximations are all that are required
asked by Bill 
General Chemistry
Calculate the standard heat of formation of acetaldehyde , 2C(s) + 2 H2(g) +1/2 O2 (g) > CH3CHO(g) given the following information? CH3CHO(g) + 5/2 O2 (g) > 2H2O(l) + 2 CO2(g) DeltaH rxn =1194 KJ H2(g)+ 1/2 O2 (g) > H2O (l) DeltaH rxn =286 KJ/mol
asked by ChemLove 
Math
Rachel will make juice drink by mixing sugar, pineapple juice, and water in the ratio of 2:5:7 cups. If she uses 20 cups of pineapple juice, she has to mix ____ cups of sugar and ____ cups of water to the juice
asked by Ceena 
Math 1350
Mrs. Jones has a prime number of children in her class. When she divides the children into teams of 7, one team has 6. When she divides the children into teams of 6, one team has 5. How many children are in the class?
asked by Ne Ne 
Science
Please someone help me figure this one out with three reasons. A group of researchers from a local lab are trying to get funding for a research study to determine if the color blue is better than the color green. They have written a proposal and submitted
asked by Mark 
English
1. He keeps many goats. 2. He has many goats. 3. He raises many goats. 4. He grows many goats. ============= Doe they have the same meaning? Which verbs are suitable?
asked by rfvv 
English
The author of The Call of the Wild shifts the setting from California to Alaska in order to a. depict how Buck becomes a tough survivor b. illustrates how money can change a character's perspective c. show John Thornton's values remain unchanged even under
asked by Kaai97 
functions
Andrew is 5 years older than Tim. Tim is aged 19. Write an equation for x, where x is the age of Andrew. Solve the equation.
asked by john 
Kaah
A gun of mass 8kg fires a bullet with a mass 25g at velocity of 320 metre per second what is th recoil velocity of the gun?
asked by Mustafa 
English
1. He shook hands with the person. 2. Tom made friends with Bill. 3. You have to change cars at the intersection. 4. He is on good terms with others. 5. He wanted to exchange seats with Bill. ======== Are they all grammatical?
asked by rfvv 
Calc
A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.3 cm/min. At what rate is the volume of the snowball decreasing when the diameter is 13 cm. (Note the answer is a positive number).
asked by Cc 
Behavioral Statistics Help!
There are also potential problems associated with interpreting the results of a paired ttest. Imagine you are interested in determining whether an employee of a company performs better with or without a bonus. What are some issues that could affect the
asked by slomomo 
Social Studies
Need a question checked: I think its C: Leftists rebels in Colombia would be most likely to A.scarcity of natural resources. B.undemocratic forms of governance. C.economic emphasis on mining. D.nationalization of industry.
asked by Kardan 
math
Is there any value of x with the property that x < x  1 ? Explain your reasoning. THANK YOU!
asked by kimie 
English
As for Mattie's third wish, Oprah Winfrey asked Mattie to appear on her show. ======== What can we use instead of 'As for'?
asked by rfvv 
English
1. He appeared on the stage. 2. He disappeared from the stage. 3. He disappeared on the stage. ======== What is the opposite expression of #1?
asked by rfvv 
Chemistry
NaN3>Na+N2 How many moles of Na are produced if 3.5 moles NaN3 react?
asked by Mathew 
English
1. He lived a happy life. 2. He lived happily. 3. He lived a long life. 4. He lived long/longly. 5. He lived a short life. 6. He lived shortly. ============= #1 mean #2,right? What about the other set?
asked by rfvv 
physics
why water from soil does not evaporate?
asked by heat 
math
Joseph used the problemsolving strategy Work Backward to solve the inequality 2n+5
asked by kimie 
Physics
A 180 pound body is dropped from a helicopter 5 miles (26400 ft.) up   what maximum speed would the body attain, in miles per hour, before hitting the ground? Disregard gravity, air density, etc. factors, a very rough approximation is all that is needed.
asked by Bill 
HELP RIGHT AWAY
8. Convert the map scale to a unit rate. How many inches represent one mile? Show your work. Interpret the meaning of the unit rate
asked by LOL 
math packet
Solve this equation for x. 0.5(57x) = 8(4x+6)
asked by charlie 
Finance
Life expectancy has risen to 78.3 years according to the Centers of Disease Control and Prevention. The average Roman’s lifespan 2,000 years ago was 22 years. In 1900, a person was expected to live 47.3 years. In 2013, assume you are a 42yearold
asked by Spork 
science help
Which of the following is a massive star that has reached the end of its stellar evolution? Neutron star Red giant Stellar nebula White dwarf is it c
asked by Oscar 
science
calculate the heat f iodine vapours & solid are 0.031 & 0.055 cal/g respectively. If heat of sublimation f iodine is 24 cal/ g at 200°C .wat is its value at 260°C??
asked by sapna 
Maths
David took out all his coins in his piggy bank. They were made up of only fifty cents and twenty cents coin. There are 12 fifty cents coins more than twenty cents coin. The total value of fifty cents coin is 21$ more than the total value of twenty cents
asked by Archana 
Language Art
3.)Why does the author organize "The Season's Curmudgeon Sees the light "as she does?(1 Points) A.)To contrast fall weddings & song with spring weddings & song B.)To contrast reading with gardening C.)To show how her feelings about spring have changed
asked by YRN DJ 
Maths
how to draw triangle having area 0sq cm
asked by pratik 
Math
The percent of fat calories that a person in America consumes each day is normally distributed with a mean of about 36 and a standard deviation of about 10. Suppose that 16 individuals are randomly chosen. Is it appropriate to use the normal approximation
asked by Brandy 
maths
How many Sq metres is there in a area of 200cm x195cm x10cm deep?
asked by Graham 
physics
an object of height 5 cm is placed at a distance of 2m in front of a mirror and its image is obtained on a screen.Find the distance of screen from the mirror,nature of the mirror and its focal length.
asked by Anonymous 
math
Hi Dan, kindly provide detail equation how to arrived to your answer. 21 boys, 21 girls. 7:5  6 girsl is 21 boys to 15 girls [think 6]
asked by tante 
science
A boy complains of stomach pain to his mother. Unable to resolve the issue herself, she takes the boy to the doctor. Which of the following might be a good hypothesis for the stomach pain?The boy fell and hurt his stomach. The boy has an infection and
asked by john 
columbia high
You have 160 boxes of cookies. In each case you can pack 8 boxes of cookies.How many cases would be filled from these boxes of cookies?
asked by johnnie 
College pre calc
Use bionomial formula to find the coefficient of the t^2 m^8 term in the expansion of (3t+m)^10. I got so far this 10C8 x 3^2 x t^2 x m^8 It tell me the next step is here =45 x 9 x t^2 x m^8 where did the 45 come from?? It doesn't explain that to me! The
asked by Feather 
World History
Information on Croatia's military strength
asked by anonymous 
physics
what is the acceleration of a car going 25m/s on a cloverleaf with a radius of 45 m?
asked by kelly