Questions Asked in 2014
Most Popular Questions of 2014

English
The 'White House' has been home to many animals as well as presidents. (1 point) common noun proper noun compound noun collective noun
asked by Hannah on September 24, 2014 
english
1. In “At the Tourist Centre in Boston,” the speaker's tone can best be identified as (1 point) disapproving. downcast. enraged. sarcastic. 2. Which line from the poem best supports the tone identified above? (1 point) "the green of the trees dulled;"
asked by kate on August 15, 2014 
math
x is partly constant and partly varies as y, when y=2,x=0 and when y=6,x=20.find x when y=3
asked by adeola on January 15, 2014 
english
1. All of the following define the theme of a story EXCEPT (1 point) the central idea of a work the underlying message in literature the methods of characterization employed by the writer the lesson, or moral, of the story which can be inferred by readers
asked by kate on August 15, 2014 
English help
1. Which of the following sentences is written in the active voice? A.) The wedding dress was sewn by Katie. B.) The red barn was painted by the farmer. C.) The boy jumped on the trampoline.*** D.) The chocolate cake will be served to the queen. 2. Which
asked by Cassie on August 14, 2014 
Trigonometry
Let (7,3) be a point on the terminal side of theta. Find the exact values of cos of theta, sec of theta and cot of theta?
asked by Anna on March 20, 2014 
Physics
I was wondering if my answers are correct. Thanks in advance. 1. A boy pushes down on a car rolling horizontally down the road. The boy pushes down vertically with 10N of force as the car rolls 3.0m horizontally. What work is done? my answer: 30 N•m (or
asked by Liz on February 3, 2014 
Physics
While sitting on a tree branch 11m above the ground, you drop a chestnut. When the chestnut has fallen 2.7m , you throw a second chestnut straight down. What initial speed must you give the second chestnut if they are both to reach the ground at the same
asked by Anonymous on August 10, 2014 
Educational Technology
1. Which of the following choices is a strategy that could help with time management? A. Spending most of the day on leisure activities. B. Doing homework in every spare moment. C. Cutting back on sleep. D. Creating a list of tasks to be completed daily.*
asked by Chris on April 16, 2014 
Physic
A spring 20cm long is stretched to 25cm by a load of 50N.What will be its length when stretched by 100N assuming that the elastic limit is not reached?
asked by Bamiduro on May 15, 2014 
Traditional african marriage is an advantage for men only,women
Traditional african marriage is an advantage for men only,not women
asked by Anonymous on May 13, 2014 
Physics
A 4.0kg cylinder of solid iron is supported by a string while submerged in water. What is the tension in the string? The density of iron is 7860 kg/m3 and that of water is 1000 kg/m3. A) 34 N B) 2.5 N C) 24 N D) 40 N E) 20 N
asked by Anonymous on November 22, 2014 
math
Mrs. Richmond bought some apples and pears in the ratio 3:5. After she gave away 3/5 of the apples and 40 pears, the ratio of apples to pears became 2:5. An apple costs 30 cents. A pear costs 15 cents more than an apple. How much did Mrs. Richmond pay for
asked by john on July 28, 2014 
physics
An object dropped from a cliff falls with a constant acceleration of 10m/s2. Find its speed 2s after it was dropped? Solution:Given ,accelaration =10m/s time=2s speed=? therfore,speed=distance travelled\total time taken s=10\2=5(ans) . is it ok.
asked by Shalini on June 22, 2014 
physics
how many litres of 15%(mass/volume)sugar solution would it take to get 75g of sugar?
asked by Charika jakhar on August 15, 2014 
Chemistry
At a given temperature, a firstorder reaction has a rate constant of 3.5 ´ 10–3 s–1. How long will it take for the reaction to be 24% complete? A chemical reaction that is firstorder in X is observed to have a rate constant of 2.20 ´ 10–2 s–1.
asked by Juli on November 17, 2014 
phys
A 12kg crate rests on a horizontal surface and a boy pulls on it with a force that is 30 degree below the horizontal. If the coefficient of static friction is 0.40, the minimum magnitude force he needs to start the crate moving is:
asked by tony on March 12, 2014 
Physics
I was wondering if my answers are correct. 1. A 50kg person is taking a ride on an elevator travelling up at a steady speed of 2.5m/s. Find the time fo the elevator trip if the elevator does 4900 J of work on the person. My answer: First I used the formula
asked by Liz on February 3, 2014 
math
The volume of a pyramid varies jointly with the base area of the pyramid and its height. The volume of one pyramid is 24 cubic inches when its base area is 24 square inches and its height is 3 inches. What is the volume of a pyramid with a base area of 10
asked by julie on November 15, 2014 
math
The overall probability of a student failing an exam is 40%. Calculate the probability that in a group of 6 students, at least 4 passed the exam.
asked by susan on December 13, 2014 
Chemistry
Using the following data 1. CU3+ + 2e > Cu+ E1= 1.28V 2. CU2+ + e > Cu+ E2= 0.15V 3. Cu2+ + 2e > Cu(s) E3= 0.34V 3. Cu+ + e > Cu (s) E4= 0.52V calculate the standard reduction potential for the reaction of Cu(III) to Cu(II). Is it .783 V?
asked by anna on November 9, 2014 
math
A circular track is 1000 yards in circumference. Cyclists A, B, and C start at the same place and time, and race around the track at the following rates per minute: A at 700 yards, B at 800 yards, and C at 900 yards. What is the least number of minutes it
asked by math on August 20, 2014 
Physics  check answers please
1. A boy pushes a car to slow it down while the car is rolling horizontally down the road. If the boy pushes backwards on the car with 10N of force as the car rolls forward 3.0m, the amount of work done by the boy is: a)30 b)0 c)3.3 J d)30 N•m e)300J my
asked by Jessica on April 2, 2014 
physics
An 8 g bullet is shot into a 4.0 kg block, at rest on a frictionless horizontal surface. The bullet remains lodged in the block. The block moves into a spring and compresses it by 3.7 cm. The force constant of the spring is 2500 N/m. In the figure, the
asked by Georgey on March 31, 2014 
Science
1Which of the following is not a function of the circulatory system? Dfights infection 2Which of the following explains why the heart is organized so that it pumps blood to two different locations? Dto provide a way for blood to pick up nutrients at
asked by Rodco on March 20, 2014 
trigonometry
if tan theta = 1/7 and tan phi= 1/3 then prove that cos 2 theta= sin 4 phi
asked by ipshita on May 16, 2014 
Maths!
Find the sum of all multiples of 5 between 100 and 300 inclusive. Ans: 8200 I do not know how to do this. Really do appreciate step by step workings and explanation. Thanks!
asked by Ariana on June 7, 2014 
poetry
Poem. DayBreak Q.1 Who does the wind address to? Q2. "The night is gone,"What does the. world 'night' refer to ? Q3. What does the poem describe? Q4. "Not yet! In quietlie".What is the meaning of this line? Q5. What does the title of the poem symbolise?
asked by akash on May 27, 2014 
Maths
The second term of a GP is 12, more than the first term, given that the common ratio is half of the first. Find the 3rd term of the GP
asked by Geometric progression on November 10, 2014 
health
Which of the following statements is CORRECT regarding deciding whether an alcohol sale is legal? A. IF a person looks over 21, they likely are. B. Few minors have physical characteristics of an adult. C. if a person looks like a minor, they likely are a
asked by jay on December 11, 2014 
Calculus Please help!
If 7000 dollars is invested in a bank account at an interest rate of 7 per cent per year. A) Find the amount in the bank after 6 years if interest is compounded annually? B) Find the amount in the bank after 6 years if interest is compounded quaterly? C)
asked by ALI on February 21, 2014 
Physics
A golf ball is released from rest from the top of a very tall building. Choose a coordinate system whose origin is at the starting point of the ball, and whose y axis points vertically upward. The acceleration of gravity is 9.8 m/s^2. a.Neglecting air
asked by Fabricus on February 9, 2014 
PhysicsI
A windowpane is half a centimeter thick and has an area of 1.0 m2. The temperature difference between the inside and outside surfaces of the pane is 15° C. What is the rate of heat flow through this window? (Thermal conductivity for glass is 0.84
asked by Fred on July 24, 2014 
dav science
a machine gun fires 25 g bullets at the rate of 600 bullets per minute with a speed of 200 m/s. calculate the force required to keep the gun in position.
asked by shri on August 17, 2014 
statistics
In a batch of 8,000 clock radios 5% are defective. A sample of 14 clock radios is randomly selected without replacement from the 8,000 and tested. The entire batch will be rejected if at least one of those tested is defective. What is the probability that
asked by havier on July 21, 2014 
English
Prepared speech about this topic Traditional healer should be allowed to practise and prescribe medicine in hospital and clinic. I don't have any working because i hv never done any prepared speech and i don't understand this topic well.
asked by Asanda on May 18, 2014 
Physics waves check answers please
1. If a bat emits 10 sounds in 5 seconds, what is the frequency of the bat's vocal outbursts (rounded to first decimal place) My answer: 2.0 Hz 2.If one crest has a 3 cm amplitude and interacts with another pulse to produce a crest 8 cm high this
asked by Liz on April 20, 2014 
Chemistry
A 108 mL gas sample has a mass of 77.96 mg at a pressure of 1140 mmHg and a temperature of 183 °C. Assume ideal gas behavior and a completely insulated system, and please donâ€™t forget units with your answers. The system is cooled. Calculate the
asked by keitanako on March 10, 2014 
chemistry
Given these standard reduction potentials at 25oC: Cr3+ + e > Cr2+ (E1^o = 0.407V) Cr2+ + 2e > Cr(s) (E2^o = 0.913V) Determine the standard reduction potential at 25oC for the halfreaction equation: Cr3+ + 3e > Cr(s) This seems like a really
asked by Bobz on March 21, 2014 
Math
A physics exam consists of 9 multiplechoice questions and 6 openended problems in which all work must be shown. If an examinee must answer 5 of the multiplechoice questions and 2 of the openended problems, in how many ways can the questions and
asked by Anonymous on March 29, 2014 
Chemistry
The energies, E, for the first few states of an unknown element are shown here in arbitrary units: n= 1, E=21 n=2, E=9 n=3, E=4 n=4, E=3 ...,... infinity, 0 A gaseous sample of this element is bombarded by photons of various energies (in these same
asked by tec on March 19, 2014 
Physics waves
thanks in advanced! A guitar emits a 440 Hz tone. How far apart are the crests in room temperature air (20 degrees celsius)? How long does it take the string to vibrate from crest position to trough position (across twice the amplitude)?
asked by Liz on April 22, 2014 
Physics waves help please
1. A person is listening to a new instrument capable of sounds ranging from 10 dB to 150 dB and with frequencies from 12 Hz to 30,000 Hz. Comment on the suitability of this instrument for the musician or audience. 2. A guitar emits a 440 Hz tone. How far
asked by Liz on April 21, 2014 
Physics waves check answers please
I am not too sure if my answers are correct. Here are the questions: 1. A student standing near a brick wall claps her hands and hears the echo 0.250 s later. If the speed of sound was 340.0 m/s, how far from the wall was she? For this question I got 85 m.
asked by Liz on April 21, 2014 
math multiple choice
. A man pays 60 cents for every 200m3 of gas used, plus a fixed charge of $13.75.How much does he pay when he uses 55 000m3 gas?
asked by marsha on April 8, 2014 
Precalculus
The height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. When graphed, the function gives a line with a slope of 0.4 . Suppose that the height of the candle after 13 hours is 24.8 centimeters. What
asked by Joey on March 24, 2014 
Math
Here is the question : A Ferris wheel is 40 meters in diameter and boarded from a platform that is 5 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 4
asked by Lili on September 2, 2014 
math
Last month, Nate spent 12% of his paycheck on car repairs and 25% of the remainder on food. He gave $1,320 of the remaining money to his parents and then bought a computer on sale. If the usual price of the computer was $825 and the discount was 20%, how
asked by Chen Sam on July 18, 2014 
math
mr. lee had a bag of red beans and a bag of black beans. 20% of the total number of beans were black, and there were 180 ounces more red beans than black beans. he transferred some red beans to the bag containing black beans, so that, the bag now contained
asked by john on July 17, 2014 
chemistry
The boiling point of another member of this homologous series was found to be 309 K \rm K. What is the likely molecular formula for this compound?
asked by Tiff on April 28, 2014 
word problem
If equal amounts of heat are added to equal masses of silver and copper, both at the same initial temperature, which will reach the higher final temperature? Explain your answer. The specific heat capacity of silver is 0.235 J/g degree Celsius and that of
asked by Liz on April 12, 2014 
Chem
Complete the Bronsted lowry reactions HPO42+H+ HPO42+OH
asked by Sharon on February 21, 2014 
Physics  check answers
1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational
asked by Lisa on February 23, 2014 
Language Arts
Please help me with the following: Myths often function as a connection to __________, or the customs and beliefs of a group of people. I think the answer is phenomena, but I don't even know if that is correct. Please help me, any help will be appreciated.
asked by Brady on August 19, 2014 
math
Ahmed earns $1.50 for every video game he sells. When he sells one carton of 30 video game, he earns an additional $10. What is the minimum number of video games he has to sell in order to earn $450?
asked by Sharon on August 6, 2014 
math
Sam had a total of 80 foreign stamps and local stamps combined. After giving away 1/3 of his foreign stamps and 10 local stamps, he had an equal number of foreign stamps and local stamps left. How many local stamps did he have in the beginning?
asked by Chris on July 30, 2014 
physics
A uniform rod 30cm long is pivoted at it's center. A 40N weight is hung 5cm from the left end. where must the 50N weight be hung to maintain equilibrium?
asked by fatimah on May 21, 2014 
7th grade math
Not sure how to solve this: Suppose your school is selling magazine subscriptions. Each subscription cost $20. the company pays the school half of the total sales in dollars. The school must also pay a onetime fee of $18. What is the fewest number of
asked by Alexis on October 17, 2014 
math
If 25 times were moved from Box A to Box B, there would be an equal number of dimes in both boxes. If 100 dimes were moved from Box B to Box A, the ratio of dimes in Box A to Box B would be 7:2. What was the original number of dimes in Box A?
asked by john on July 21, 2014 
Science Plzz Help
1. Which of the following types of joints allows the type of shoulder motion needed by a baseball pitcher to pitch a fastball in a baseball game? A. pivot B. gliding C. hinge D. ball and socket*** 2. Which of the following pairs of joints represents the
asked by Mstv on May 6, 2014 
Geometry
Two cubes of volumes 8 and 27 are glued together at their faces to form a solid with the smallest possible surface area. What is the surface area of the resulting solid?
asked by Sheenybeany on July 22, 2014 
geography
which of the following statements is true of Singapore a. Singapore's government condemned u.s. military actions in Afghanistan. b. Singapore finally became self governing in 1965 c. Singapore is member of the federation of Malaysia d. Singapore is a major
asked by cali on January 20, 2014 
Tech Ed
Why is it important for schools and organizations to have an Acceptable Use Policy? A.It prohibits people from using the Internet B.It lets people know what is considered to be acceptable use of the Internet C.It makes it mandatory for people to use the
asked by Eugene on January 16, 2014 
maths
A circular table is pushed into the corner of a rectangular room in such a way that it just touches two adjacent walls.An ant crawling on the table rim(on the minor arc between the two points of contact)observes that it is 8 inches from one wall and 1
asked by Nitumoni on September 3, 2014 
chemistry
Write the balanced equation for the neutralization reaction between H3PO4 and NaOH in aqueous solution. Phases are optional.
asked by Karen on May 14, 2014 
Science
1. Which of the following is true about mixtures? (1 point) Mixtures consist of two or more substances chemically combined. Mixtures cannot be separated by physical means. Mixtures consist of only one kind of atom. ***Mixtures have two or more substances
asked by TTR+S<3 on January 29, 2014 
filipino
halimbawa ng tu!@#$%^&lian 5 halimbawa ng tao laban sa tao 5 halimbawa ng tao laban sa sarili 5 halimbawa ng tao laban sa lipunan 5 halimbawa ng tao laban sa kalikasan
asked by ai on November 10, 2014 
algebra
This isosceles triangle has two sides of equal length, a, that are longer than the length of the base, b. The perimeter of the triangle is 15.7 centimeters. The equation 2a + b = 15.7 can be used to find the side lengths. If one of the longer sides is 6.3
asked by Kris on October 13, 2014 
math
Jack and Jill went to Burger Queen. Jack bought 2 hamburgers and 3 shakes for $4.21 while Jill bought 3 hamburgers and 2 shakes for $5.24. The cost of 1 hamburger and 1 shake is: A) $1.03 B) $1.54 C) $1.89 D) $9.45
asked by Wing Lam on July 18, 2014 
Finance
Determine the present value if $5,000 is received in the future(ie. at the end of each indicated time period) in each of the following situations. 5% for 10 years, 7% for 7 years and 9 % for 4 years
asked by Susan on February 4, 2014 
physics
10. A 2kg object is moving at 3m/s. A 4N force is applied in the direction of motion and then removed after the object has traveled an additional 5m. The work done by this force is: A. 12 J B. 15 J C. 18 J D. 20 J E. 38 J ans: D 11. A sledge (including
asked by Anonymous on December 31, 2014 
Chemistry
What would the potential of a standard hydrogen (S.H.E.) electrode be if it was under the following conditions? [H+] = 0.38 P(H2) = 3.8 T = 298 K
asked by Molu on May 8, 2014 
Chem
It is possible to determine the ionization energy for hydrogen using the Bohr equation. Calculate the ionization energy for an atom of hydrogen, making the assumption that ionization is the transition from n=1 to n=infinity. I don't know how to solve this
asked by Jeimmy Vinueza on March 6, 2014 
Science
Which of the following best describes a scientific theory? A.A scientific theory is a rule of nature that can never be changed. B.A scientific theory is an educatrd guess about the possible results of an experiment. C.A scientific theory is a description
asked by Beau on August 28, 2014 
Calculus Help Please!!!
A stone is dropped into a lake, creating a circular ripple that travels outward at a speed of 40 cm/s. Find the rate at which the area within the circle is increasing after each of the following. after 1 s = after 3 s = after 7 s =
asked by Tim on April 2, 2014 
chemistry
The reaction of 2.5 mol of O2 with 4.6 mol of C3H8 will produce ________ mol of H2O.
asked by Anonymous on October 26, 2014 
Math
. Below, the standard addition algorithm is being used to add three twodigit numbers. 4z 27 +x5 y14 If x, y and z each represent a different digit from 0 to 9, what is the value of (x)(y)(z)?
asked by KYSmith on May 13, 2014 
Chemistry
Hydrogen peroxide can act as either an oxidizing agent or a reducing agent, depending on the species present in solution. Write balanced halfreaction equations for each of the following: (a) H2O2(aq) acting as an oxidizing agent in an acidic solution.
asked by Alexis on April 28, 2014 
MATH
Kevin has 9 stamps that have the image of a boat on them. If this is the 30% of the total collection of stamps Kevin has, how many stamps does he have?
asked by BRYANNA on March 2, 2014 
Physics
A 5.1–kg block is pulled along a frictionless floor by a cord that exerts a force P = 12 N at an angle θ = 25° above the horizontal, as shown below. (a) What is the acceleration of the block? (b) The force P is slowly increased. What is the value of P
asked by Chrxeyshthoufov on February 23, 2014 
help3 questions
5. Which of the following is an important criterion for evaluating the effectiveness of a graphic organizer? how colorful it is how well it conveys information how many pages it is how many words it contains 6. How was information conveyed in the Google
asked by Princess Anna on January 22, 2014 
maths
If alpha and beta are the zeros of the polynomial p(x)=x^2+x+1 then find the value of 1÷alpha+1÷beta 2)alpha^2+beta^2
asked by rinu on May 10, 2014 
Chemistry
Which of the following is an example of quantization? A. The amount of time spent in a classroom B. The number of students in a classroom C. Learning happening in a classroom D. The temperature range in a classroom What is the definition of quantization
asked by Morgan on December 12, 2014 
eng9
The White House has been home to many animals as well as presidents. (1 point) common noun proper noun compound noun collective noun
asked by james on August 24, 2014 
english
4. In both the Gettysburg Address and “Letter from Birmingham Jail,” the writers (1 point) comment on the tribulations faced by a nation at war. honor those who have fought for freedom. demand the revision of the nation’s unjust laws. expound on the
asked by kate on August 13, 2014 
chemistry
For which of the reactions listed below will Gibbs free energy always be negative? A. An exothermic reaction that increases in entropy B. An endothermic reaction that decreases in entropy C. An endothermic reaction that increases in entropy D. An
asked by Cortey on November 27, 2014 
Trigonometry
A communications tower is located at the top of a steep hill, as shown. The angle of inclination of the hill is 58°. A guy wire is to be attached to the top of the tower and to the ground, 50 m downhill from the base of the tower. The angle α in the
asked by Liz on October 1, 2014 
math
Find dy/dx and d2y/dx2. x = et, y = te−t
asked by sara on July 28, 2014 
Physicscheck answer please (multiple choice)
1. A 2.5 kg mass at rest on a horizontal surface is acted upon by an applied horizontal force of 150 N. A frictional force of 100 N acts on the mass. How much work is done on the mass? my answer: would the work be 0? 2. When a rock is thrown straight up in
asked by Lisa on February 24, 2014 
Physics
a person pushes on a hockey puck with their stick at an angle so the vertical force is 22N down and the horizontal force is 45N forward. Assume the ice is frictionless. What is the actual force the hockey player transmits to the puck? what is the work done
asked by Anonymous on May 29, 2014 
Trig
I need help setting these up. 1.) Use the parallelogram rule to find the magnitude of the resultant force for the two forces shown in the figure. round to one decimal place. Theta= 35 degree, b=98 lbs, c=55lb 2.) Find the magnitude and direction angle for
asked by Derrick on November 26, 2014 
statistics
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long (The Wall Street Journal,
asked by sean on November 16, 2014 
Maths
find the area of the region bounded by the parabola y^2= 16x and its latus rectum
asked by Tony on November 15, 2014 
math
One shelf at CovertoCover Bookstore contains copies of several books on the bestseller list. Half of the books on the shelf are copies of the Number 1 best seller. Of the remainder, 1/4 are copies of the Number 3 book. The rest are copies of the Number
asked by Ouloperjs on July 25, 2014 
math
Mr. Jones got a loan for a sum of money, and at the time of repayment he owned $75.00 in interest. Mr. Brown borrowed three times the amount of money Mr. Jones had borrowed at the same rate of interest for twice as long a time. How much interest does Mr.
asked by Wing Lam on July 18, 2014 
Trig/PreCalc...
Please help me with this. The finishing time for a runner completing the 200meter dash is affected by the tailwind speed, s. The change, t, in a runner's performance is modeled by the function shown below: t= 0.0119s^2  0.308s  0.0003 Predict the
asked by AbelovedAngel on October 23, 2014 
English Miss Sue
1.Revise the following sentences so that the subject and verb of each sentence identify key actors and actions: •The dedication of professors to multiculturalism is crucial to encouraging students of all races to succeed. •Currently, the percentage of
asked by Angela on June 26, 2014 
Math
Jane is going to walk once around the edge of a rectangular park. The park is 200 yards long and 300 feet wide. How far will Jane walk?
asked by Jada on June 24, 2014 
Chemistry
Consider a fuel cell that uses the reaction of ethanol with oxygen to produce electricity, CH3CH20H(l)+ 3O2(g)> 2CO2(g)+3H2O Use thermodynamic data to determine the value of E°cell for this cell at 25 °C. I don't really know where to start. I got the
asked by Sophie on May 5, 2014 
Chem
In a 1.0x10^6 M solution of HNO3(aq) at 25 degrees C, identify the relative molar amounts of species from most to least. HNO3 H3O+ H2O OH NO3
asked by Mer on February 20, 2014