Questions Asked on
April 5, 2013

physics
If a body weight 10N is lifted from the floor to a table 2m above the floor ,calculate the potential energy gained.What happens to the energy if the body falls of the table and hits the floor?
asked by Chidex 
Trigonometry
How do I prove that sin(x+y)sin(xy)=2cosx siny
asked by Rene 
Physics
A figure skater rotates about a vertical axis through her center with both arms and one leg extended. Her rotation rate is 0.65 rev/s. She then pulls her arms and leg closer to her body and begins to spin at a 1.85 rev/s. What is the ratio of her new
asked by Denise 
Math
1. What type of graph does not show the number of times a response was given? (1 point) boxandwhisker plot line plot stemandleaf plot bar graph 2. Which of the following types of information is suited for display on a scatter plot? (1 point)
asked by Anonymous 
STATISTICS
A particular cell phone company offers 4 models o phones, each in 6 different colors and each available with any one of 5 calling plans. How many combinations are possible?
asked by Anonymous 
Algebra
A box with no top is to be constructed from a piece of cardboard whose length measures 6 inch more than its width. The box is to be formed by cutting squares that measure 2 inches on each side from the four corners an then folding up the sides. If the
asked by T H 
Spanish 2
Fill the blank with the correct object pronoun. A nosotros ___________ aburre ir de compras.
asked by Jasmin 
Biology
Explain the role of white blood cells in the body's defense against foreign substances.
asked by Shane 
Biology
What are some of the treatments for coronary artery disease?
asked by Shane 
PHYSICS
A truck has a momentum of 5.8x10^4 Ns [S]. An average force of 2.2x10^3 N [S] increases the truck's momentum for the next 8.8s. What is the impulse and final speed of the truck?
asked by R 
MAth
the measurement on one side of a right triangle is found to be 9.5 inches inches, and the angle opposite that side is 27 degrees,45' with a possible error of 15'. (round answers to two decimal places) a) Approximate the percent error in computing the
asked by jay 
Grammar
Which verb completes the sentence below correctly? Each of the players ______ given a small trophy. was *(my answer) were Thanks for the help!
asked by Oli 
World Geography
REVIEW 1.How do lines of latitude and longitude help geographers study Earth? A. These lines show geographers the direction of Earth’s rotation around the sun. B. These lines help geographers see the difference between oceans and landforms on Earth’s
asked by bre 
math
1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing available. Express the area of the enclosures as a function of its dimension. No there is no common side (lets say.) Thanks
asked by Daniel 
Physics
if a toy car's motor propelled it 1.905m in 7.1 seconds and it kept rolling .38m for 8.6 seconds what is the coefficient of friction between the wheels and the floor assuming that is the only source of friction. i know accel=.08m/s2 and .12m/s2 but after
asked by Julia 
Algaebra
A rectangular swimming pool is 5 feet longer than it is wide. If a concrete walk 2 feet wide is placed around the pool, the area covered by the pool and the walk is 156 square feet greater than the area covered by the pool alone. What are the dimensions of
asked by Taylor 
Physics
Determine the electric potential energy for the array of three charges shown in the drawing, relative to its value when the charges are infinitely far away. (Let q1 = 8.48 µC, q2 = 19.2 µC, and q3 = 16.1 µC.)
asked by Emilie 
chemistry
What is molarity of propanol, C3H7OH, when 60. mL propanol is mixed with enough H2O to make a final volume of 100. mL? The MW of propanol = 60.11 g/mol and the density of propanol = 0.804 g/mL.
asked by Dolores Ramirez 
Calc
Find the present value of $14000 due in 9 years at the given rate of interest. (a) 2%/year compounded semiannually? (b) 5%/year compounded semiannually?
asked by Carl 
English
Mandy interviewed a source who told about how she was illegally treated by the police. Using her information in the speech is an example of: A. facts and statistics. B. narrative. C. testimony. D. hypothetical example. i'm confused between B & C 2. An
asked by Amy 
Calculus
the measurement on one side of a right triangle is found to be 9.5 inches inches, and the angle opposite that side is 27 degrees,45' with a possible error of 15'. (round answers to two decimal places) a) Approximate the percent error in computing the
asked by Jay 
UNDERSTANDING OBSERVATION AND BEHAVIOR
The Child Development Checklist is an observation tool that A. includes space to record nonobjective data. B. omits references to children's emotions. C. focuses on sequences of child development. D. can only be used by one observer for the same child.
asked by Anonymous 
Math
Henry is a quality control inspector. He is watching the production line for Barb's Raisin Cookie. Henry will reject a cookie with less than 8 raisins. In the past, one out of every 100 cookies had less than 8 raisins. Find the probability that the first
asked by Anonymous 
math
1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing available. Express the area of the enclosures as a function of its dimension.
asked by Daniel 
Physics
A 35kg child is swinging on a swing with length 2.8m to the bottom of the seat. At the highest point of the swing, the rope makes an angle of 42 degrees from vertical. Calculate the speed of the child at the bottom of the swing. Assume no thermal energy is
asked by John 
math
n is a digit such that the 5digit number n878n is divisible by 9. What is the value of n?
asked by ayan 
World Geography
REVIEW 1.Which of the following is an abundant natural resource found in Canada? A. Gold B. Timber C. Soybeans
asked by bre 
geometry
LMNO is a parallelogram. If NM = x + 15 and OL = 3x + 5, find the value of x, then find NM and OL
asked by ashley 
algebra 1
What is the speed, in miles per hour, of a toy car that runs 40 feet in 8 seconds? Round your answer to the nearest whole number. (1 hour = 3600; 1 mile = 5280 ft)
asked by terri 
Physics
Light with a wavelength of 500 nm (5. 107 m) is incident upon a double slit with a separation of 0.44 mm (4.40 104 m). A screen is located 2.1 m from the double slit. At what distance from the center of the screen will the second dark fringe beyond the
asked by Melissa 
Chemistry
Consider the salt FeSO4.7H20. What quantity in grams of salt could be produced from 1g of iron, assuming the overall reaction yield is 75% ? :) Thanks in advance!
asked by Matt 
math
The square yard you are mowing has an area of 9600 ft^2. What is the side length of the yard? Round your answer to the nearest tenth of a foot if necessary. Please solve and explain
asked by Jane 
English
1. When researching for supporting materials about the impact of violence in the media, it is a good idea to get assistance from this resource. A. Television B. Callin radio C. Librarian D. Personal interview is it D 2. An advantage of using media
asked by Amy 
English
1. In conducting a personal interview, setting limits on what will be covered should occur: A. at the beginning of the interview. B. in the middle of the interview. C. at the end of the interview. D. during the strategy stage. i'm confused between A & D 2.
asked by Amy 
Math
How do you get the big number on a runaway math puzzle worksheet
asked by Victor 
Medical Transcription
The patient obtained records in order to save the nurse a phone call to her previous doctor and she made sure to ask right away for this to be done to save time. Is this sentence a runon, usable, or correct as is?
asked by Debbie 
physics
A police offer may warn that “speed kills.” In video games, highspeed crashes are common. Suppose a particular scene in a game required the following elements: • a high performance motorcycle must crash into a barrier and be stopped • a small
asked by alejandro 
math
in how many different orders can 4 children be arranged in a line,if john and julie refuse to stand next to one another ?
asked by josh 
math
john is the age that sally was 3 years ago,13 year old elissa is 3 years older than sally,how old will john be on his next birthday?
asked by josh 
AP CHEM
Aspirin has the structural formula below. Which functional groups does this molecule contain? I. Acid II. Alcohol III. Ester IV. Ether I have no way of posting the structure, but it is on google images! If you type in aspirin structural formula, it's the
asked by Anonymous 
health
After ejaculation, the sperm can live for about ____ in the female reproductive tract
asked by tammie 
Biology  URGENT Enzyme Lab
Did a catalase producing hydrogen peroxide lab, used manganese dioxide, fresh frozen liver, potato, ice, fine clean sand, etc. Basically just added hydrogen peroxide to the catalysts under diff conditions and stuff. Just don't get this question which is :
asked by Shreya 
algebra
An investor invested a total of $2200 in two mutual funds. One earned 5% profit while the other earned a 3% profit. If the investor's total profit was $86, how much was invested in each mutual fund?
asked by monique 
World Geography
REVIEW 1.What type of information does a physical map show? A. Natural features
asked by bre 
Physics 1
A mass m1 = 4.9 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 4.7 kg which hangs freely from the string. When released, the hanging mass falls a distance d = 0.8 m.
asked by Brandon 
World Geography
REVIEW 1.Where is Canada’s population density highest? A. In the cities of Northern Canada B. In cities in central Canada
asked by bre 
math
The three terms x+12, 3x+5 and 2x+25 are the first three terms of an arithmetic progression. What is the value of x?
asked by ayan 
math
Find a positive integer N, such that when N is added to 98, it gives the same result as N multiplied to 98.
asked by ayan 
Algebra
A room is shaped like a trapezoid. There are windows on the walls that are parallel. The distance between the windows is x. The length of one windowed wall is 3 less than the x, and the length of the other windowed wall is 3 more than x. The area of the
asked by Anonymous 
Chemistry
a)Would you expect the empirical formula you determine for magnesium oxide to be the same as the one determined by another student? b) Would you expectan empirical formulato be the same even though different masses of Mg were used? Briefly explain. c) If
asked by Helpme123 
physics
A flying bat emits squeaks at a frequency of 80 kHz. If a stationary observer picks up the frequency of the squeaks as 78 kHz, determine the speed at which the bat is flying
asked by Helen 
Biology
Explain what happens when a person with AB+ donates blood to a patient with A+ blood type?
asked by Shane 
Chemistry
Calculate the enthalpy change when 45 g of ice at 40.0 oC is heated to completely melt to liquid water at 0.0oC. (The heat of fusion for water is 333 J/g.)
asked by Brittney 
physical geography
in the northern hemisphere the weather map showing isobars and the positions of cold and warm fronts
asked by denise 
college math
I posted this problem earlier, but I still can't figure it out. It is for extra credit. I was hoping if someone could please solve it. I would greatly appreciate it. A bourbon that is 51 proof is 25.5% alcohol by vol. while one that is 82 proof is 41%
asked by Lorie 
Physics
The diameter of the atom is proportional to n2, where n = 1 labels the lowest, or "ground" state, n = 2 is the second state, n = 3 is the third state, and so on. If the atom's diameter is 1 multiplied by 1010 m in its lowest energy state, what is its
asked by Kim 
Art answer check
1. Ann Hamilton's "Indigo Blue" is an example of what kind of art? Feminist Art Action Painting x Installation Art Video Art 2 The events in contemporary Iran give this artist context for films and videos by this artist: Wemda Gu x Shirin Neshat Zaha Hadid
asked by kristina 
World History
How has the nature and technology of warfare evolved,from earliest times to 1500CE?
asked by Anonymous 
Physics
A force (in this case, water) is applied to a waterwheel that turns and lifts a small weight that is attached to a string that is attached to the waterwheel's axle. How do Newton's 3 laws of motion describe this event?
asked by Pat 
Science
What are the responsibilities of humans toward natural resources? Describe three of the environmental challenges humans face today.
asked by Macie 
History/English
I have two separate questions that I am having trouble answering... Why is Roman law often considered to be the greatest contribution of the Romans to the modern world? Also, I have to find image, style, tone, setting, and theme within the book The Hunger
asked by Tim 
Math
If the floor plan of a new building is shown the building cost $35.00 a saqure foot to construct you need to obtain insurance for the new building .how much insure?
asked by Becca 
Science
What do the hairlike structures on a cell do? Please don't give me a link to another website. Thank you!
asked by Serena 
MATHS
Class A and Class B have the same number of pupils. The ratio of the number of boys in Class A to the number of boys in class B is 3:2. The ratio of the number of girls in Class A to the number in Class B is 3:5. Find the ratio of the number of boys to the
asked by RS 
science
how might the shape of the hairlike structures relate to their function? Thanks.
asked by Louis 
Medical Transcription
PUNCTUATION AND CAPITALIZATION The patient has had recurring episodes of paroxysmal nocturnal dyspnea and 3 pillow orthopnea. Associated symptoms such as lightheadedness, breathlessness, and exertional dyspnea occur during daytime hours. Is this statement
asked by Debbie 
statistics
find p(9,4)
asked by pj 
writing a paragraph
how to apply for a spcific job
asked by phyllis 
MATHs
The three terms x+12, 3x+5 and 2x+25 are the first three terms of an arithmetic progression. What is the value of x?
asked by Oian 
Maths
What is the sum of all real solutions to the equation x−6/4=−2/x?
asked by Oian 
English
A hypothetical example is: A. a false example. B. not real but can happen. C. an example used to prove a hypothesis. D. has no place in a speech. is it B
asked by Amy 
chemistry
what is the mass of sodium nitrate (85.00g/mol) that releases 2.55L of gas at STP?
asked by Jennifer 
Discrete Math
For sets A, B, C is a subset of U, prove or disprove (with a counterexample) the following: If A is a subset of B, B is not a subset of C, then A is not a subset of C,
asked by Ron 
Chemistry
What kind of energy is primarily used to bring electricity to remote areas that are far from power lines? A. Kerosene B. Batteries C.Solar electric units D. Electrical network
asked by Marie 
Maths
Suppose z=a+bi, where a and b are integers and i is the imaginary unit. We are given that 1+iz=1−iz and z−(13+15i)
asked by Oian 
science
Calculate the work done by lifting a stack of books 0.5 m onto a table. The force you exerted eas 150N. Please help I am lost as how to do this
asked by Cherie 
Medical Transcription
Thanks for your help!!
asked by Debbie 
Maths
Let f(x)=2x^2+40x+25. Given that f(x) leaves the same remainder when divided by x−a as when divided by x+2a for a positive integer a, what is the value of a?
asked by Oian 
math
Ricky is 5 years older than Sara. Three years ago he was twice her age. How old is Ricky? Thanks for the help!
asked by Lorie 
computer
create a QBASIC program using DO WHILE LOOP
asked by jolomi 
Algebra Binomial Theorem
Hi, can somebody help me with this math problem I am stuck on? How do I use binomial theorem to expand(2x – 5y)^3. I need to show my word so any help you can provide would be greatly appreciated.
asked by Dakota 
computer
the meanings of this QBASIC WORD • FOR • DO  • SELECT • MID$ • ASC • SQR • LEN • LEFT$ • TIME$ • INT
asked by jolomi 
college math
A quantity, W, is directly proportional to X and the square Y, and inversely proportional to the cube of Z. W=3 when X=4, Y=2 and Z=4. What is the value of W when X=8, Y=9 and Z= 6? Give answer to 3 decimal places. Thanks in advance! I appreciate all the
asked by Lorie 
physics
For a long straight wire, carrying a current of 20 A. A rectangular coil 5 x 10 cm2 is 2 cm apart. The coil carries a current of 5 A. a) determining the force acting on each segment of the rectangular coil. b) What is the net force on the coil?
asked by Sergio 
Science
How do the oceans support life? How have the oceans and their marine life changed through time?
asked by Megan 
Life Orientation
What are the Three (3) enviromental health hazards that cause ill health,crises, and or disasters within south africa and globally
asked by Koketso 
english/writing
how can i reword this sentence differently and better? it sounds wrong to me. In conclusion, The Scarlet Letter is a transcendentalist novel of the strength of individual character.
asked by Sarah 
Statistics
If you draw two clubs on two consecutive draws from a standard deck of cards you win $660 otherwise you pay me $40
asked by Lynn 
science
What are the large and small scale causes of climate and weather?
asked by kim 
chemistry
draw particle diagrams that account for the fact that 2 volumes of nitric oxide gas react with 1 volume of oxygen gas to form 2 volumes of product with no leftover gas
asked by Paula 
History pls help
Which of the following nineteenthcentury inventors is associated with Menlo park in New jersey A. Alexander Graham Bell B. Thomas Alva Edison C. Cyrus W. Field D. Gustavus F. Swift
asked by Brooke 
algebra
one inch is about 2.254 centimeters .A puzzle has a length of 28 centimeters .What is the length of the puzzle in inches ,rounded to the nearest tenth of an inch
asked by mayra 
chemistry
If your equation of the line for you SAM analysis is y=1x+0.3980, what is the concentration of Mg in ppm in your unknown solution?
asked by M 
math
A backery makes loaves of bread for $1.40 and sells them for $1.75 per loaf. What is the percent markup on each loaf based on cost?
asked by Vickie 
physics
If a body weight 10N is lifted from the floor to a table 2m above the floor ,calculate the potential energy gained.What happens to the energy if the body falls of the table and hits the floor?
asked by Chidex 
maths
5 seamstresses can make 3 shirts in 3 days so how many can 7 make in 10 days??
asked by Anonymous 
chemistry
If your equation of the line for you SAM analysis is y=1x+0.3436, what is the concentration of MgO in W/w% in your unknown with a mass of 0.1018?
asked by M 
Psychology
Professor Webb is interested in conducting a study on gender differences and coping with stress. He should begin his research by examining:
asked by Nancy 
algebra
One car travels 105 miles in the same amount of time it takes a second car traveling 6 miles per hour slower than the first to go 87 miles. What are the speeds of the cars?
asked by jairo 
History
in 1866 Chief cloud ambushed and massacre Union soldiers the massacre was named what A. Little big horn B.Wounded Knee C.Fetterman D. Chivrington
asked by Angel 
math
it takes 7 men 10 days to build a garage.Halfway through building the garage they get some help from 3 people and continue to work at the same rate a)How long will it take to finish of the garage b)How long did it take
asked by Anonymous 
math
Jose, Paul,and Dan went fishing. It was a good day, and all three of them caught a fish. Dan's fish weighed four times as much as Paul's fish, and Jose's fish weighed half as much as Dan's fish. Altogether, the three fish weighed 21 pounds. How much did
asked by sarah 
Geometry
How many three digit numbers have three distinct digits?
asked by Jacob 
Math
Can you use the numbers 1  9, along with any math symbols and operations, to arrive at the answer of 100 when the 6 and 9 have a negative sign in front of them?
asked by Enis 
Simple Math
Please explain to me what I need to do . A cable 35 feet long runs from the top of a utility pole to a point on the ground 30 feet from the base of the pole. How tall is the utility pole ?
asked by Jessica 
ap calculus
a particle moves along the x axis in such a way that its acceleration at time t, t>0 , is given by x(t)= (ln x)^2. at what value of t does the velocity of the particle attain its maximum
asked by bob 
maths
In parabola, give any example of a quadratic equation which doesnot touches the xaxis and yaxis
asked by anoynomous 
Psychology
The weather person on the evening news reports that the average daily rainfall for the last six months is 10 inches. A farmer is trying to determine how the rain might affect his crops.
asked by Nancy 
math
tom,jack and joe are the fastest runners in the school.if they race one another,without dead heats,how many combinations can they finish in if they occupy the first 3 places ?
asked by josh 
Geometry
ABCD is a parallelogram. If ÚABC=35 degrees , what is the measure (in degrees) of ÚADC ?
asked by Jacob 
college math
It takes Mike 8 minutes to walk to the store from his house. The return trip takes 13 minutes because he walks 1mph slower due to the bags he is carrying. How fast did Mike walk on his way to the store? Carry out one decimal place. Thanks in advance!
asked by Lorie 
chemistry
Calculate the concentrations of all species present C6H5N2, C6H5NH3+ OH^, and H3O^+}) in a 0.14 M solution of aniline.
asked by kim 
science
What may be some longterm effects of human interactions with the oceanic environments?
asked by Jane 
math
row a;1,2,3,4,5............................rowb;1,2,4,8,16...........................row c;2,4,7,12,21.........................what is the first entry in row c which is greater than 100 is most likely to be ?
asked by josh 
FINANCE
Pls explain and prodive a resource to fine equation. Computing interest tax savings.Dharma Supply has earnings before interest and taxes (EBIT) of $500,000, interest expenses of $300,000, and faces a corporate tax rate of 35%. a. What is Dharma Supply’s
asked by CHASE 
physics
A 2.10 m diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of 7.90 µV/m. (a) What is the intensity of this wave? W/m2? (b) What is the power received by the antenna? W? (c)
asked by taryn 
Algebra II
What is the simplified form of (1/2x^2)^3 X^7?
asked by Piggy 
History
If u were a immigrant in America at 1880 its most likely u were a german N Lutheran b Italin N Catholic C Irish N protestant Or D Swedish n protestant
asked by Bliss 
Algebra II
Given x(x) = 2x^3  6x^2 + 8 Rewrite the given equatin in factored form.
asked by Piggy 
physics
On its highest power setting, a microwave oven increases the temperature of 0.350 kg of spaghetti by 45.0°C in 100 s. (a) What was the rate of power absorption by the spaghetti, given its specific heat is 0.900 kcal/kg·°C? W (b) Find the average
asked by taryn 
Psychology
One way to measure the validity of test would be to:
asked by Nancy 
physics
A boat is traveling on a bearing of 25 degrees East of North at a speed of 4 knots (a knot is 1.852 km/h). After traveling for 3 hours, the boats heading is changed to due South and it travels for an additional 2 hours at 5 knots. Using a Vector diagram,
asked by Chad 
Algebra II
simplify (2x^4 y^2 / 3x^6 y^8)^3
asked by Piggy 
chemistry
I'm trying to figure out what went wrong during my freshman chem lab. We were figuring out the enthalpy of formation of MgO(s). MgO(s) + 2H+(aq) > Mg2+(aq) + H2O(l) dHrxn = 334.83kJ/mol Mg(s) + 2H+(aq) > Mg2+(aq) + H2(g) dHxrn = 1105kJ/mol H2(g)+
asked by Louie 
Algebra II
Write a quartic funciton that has 2 real and 2 imaginary roots and rewrite the polynomialin standard form.
asked by Piggy 
AP CHEM
A secondary alcohol results from the attachment of a hydroxy group to which carbon atom? C 
asked by Anonymous 
Algebra II
write a fourth degree polynomial function a leading coefficient o 1 given three of its zeros are 1, 3 and 2i, then rewrite it in simplified form.
asked by Piggy 
Algebra 1
A certain United States flag has a perimeter of 58 feet . The length of the flag is 9 feet longer than the width. What are the dimensions of this flag ?
asked by Citlalli 
Art
1.With late 20th c. sculpture a new attitude developed around the use of 'ordinary' materials. Some said that this was merely "Dadaist revival." The work may involve moving parts (kinetic sculpture), or 'combines' of seeming unrelated objects, or popular
asked by kristina 
Physics
(a) In the diagram above the small semicircle in the wire above R_1 indicates that it is not in contact with the horizontal wire which it appears to intersect due to the 2dimensional projection. Additionally, the horizontal wire is continuous, not
asked by Phy 
grade 6 honors math
Of 150 sixth graders choosing electives for next year, 50 signed up for theater, 65 signed up for art and 70 signed up for band. Some students did not choose an elective. Represent this information using Venn Diagrams.
asked by Jake 
cultural diversity
a speaker you over heard saying____was employing litrate style oral language.
asked by imani 
Chemistry
A mixture of 1.39 g H2 and 1.60 g He is placed in a 1.00L container at 27°C. Calculate the partial pressure of each gas and the total pressure. PH2 = ? atm PHe = ? atm Ptotal = ? atm Please put answer so i can compare to my answer
asked by Rashid 
college math
A quantity, W, is directly proportional to x and the square of y and inversely proportional to the cube of z. W3 when x=4,y=2 and z=4. What is the value of w, when x=5, y=5 and z=4. Give answer to three decimal places. Thanks so much!
asked by Lorie 
help with chemistry
Uranium hexafluoride is a solid at room temperature, but it boils at 56°C. Determine the density of uranium hexafluoride at 67°C at 759 torr. ___g/L I got 12.7 i do not know if this is correct. Please help
asked by Bob 
Chem HW!! Difficult! HELP!
Urea (H2NCONH2) is used extensively as a nitrogen source in fertilizers. It is produced commercially from the reaction of ammonia and carbon dioxide. 2 NH3(g) + CO2(g) Heat pressure> H2NCONH2(s) + H2O(g) Ammonia gas at 223°C and 90. atm flows into a
asked by Jane 
early chlhood
Ms. Sue you do not know me and I do not know you. I am not a cheater because I have a lot going on in my life. My husband has stage four cancer and I am trying to finish school and also take care of my two small children. I watching my husband die in front
asked by betsy 
physics
A box is being lowered down a wall at constant speed by a girl, as shown. Her hand is pushing on the edge of the box with 50 N of force at a 45◦ angle with respect to the horizontal. The box weighs 40 N. Find the coefficient of kinetic friction between
asked by / 
physics
A box is being lowered down a wall at constant speed by a girl, as shown. Her hand is pushing on the edge of the box with 50 N of force at a 45◦ angle with respect to the horizontal. The box weighs 40 N. Find the coefficient of kinetic friction between
asked by / 
physics
A person pushes with force F on a box which remains at rest on a rough floor as shown in the top figure. The bottom figures illustrates all the force acting on the box. a) What condition must be satisfied by all the force acting on the box so that it
asked by / 
World Geography
REVIEW Which ecosystem usually supports thick forests of deciduous trees? A. Tropical forest B. Temperate forest C. Savanna
asked by bre 
Math
Justin rides his bike in a rectangular route. He knows the total distance is 6,188 yards and the length of the shorter side of the route is 741 yards. What is the length of the longer side ?
asked by Josh 
World Geography
REVIWE 1.Using up resources is one of the negative effects of A. the birth rate. B. the death rate.
asked by bre 
Math
A certain United States flag has a perimeter of 58 feet . The length of the flag is 9 feet longer than the width . What are the dimensions of this flag?
asked by Citlalli 
World Geography
REVIEW 1.____________ spread cultural traits because they bring cultural traditions with them to their new homeland. A. Traders B. Explorers
asked by bre 
FRM 121 Fashion History II
How can I find Fashion Period Report Victorian and Bustle Era Society and Fashion?
asked by Tomika Davis 
chemistry
A solution is made by dissolving 0.10 mole of Na2SO4 in water to a final volume of 1.00 L. What is the molar concentration of Na+ ions in the solution?
asked by Dolores Ramirez 
Math
Solve 3cosx+1=2secx
asked by Marco 
World Geography
REVIEW 1.An area in which a single culture or cultural trait is dominant is called a ____________. A. culture B. cultural landscape
asked by bre 
building science
how do we calculate the equilibrant if the upward force is 450N and the downward force is 750N acting on the same line?
asked by selvan 
math
a railway train 100 m long is runing at the speed of 50km/hour in what time will it pass pole near the line?
asked by vaidehi 
World Geography
REVIEW 1.Demographers are scientists who study A. weather and climate. B. pollution.
asked by bre 
math
a railway train 100 m long is runing at the speed of 50km/hour in what time will it pass pole near the line?
asked by vaidehi 
math
a railway train 100m long is runing at the speed of 50km/hour in what time will it pass pole near the line
asked by vaidehi 
math
make out a bill for 4 new car tyres at k54.75 each?
asked by monzii 
Math
I need 120 pieces of wire that are 18 inches long. How much wire should I buy? Thanks!
asked by Carla 
physics
a circular plastic dish of radious 2 cm is floating in a bucket of water. A small iron block is placed gently in it. It sink by 1cm find the mass of the block
asked by chandu 
Chem
Use a chemical equation to help explain why the pH of an aqueous solution changes after HCl solution has been added This is what I got HCL + H2O = H30+ plus CL Hope that makes since (those are a positive and negative signs at the right side of the
asked by meghan 
economics
the south African government is not providing enough welfare or subsidies to the poor and underpriviledged. what are the cost and consequences of providing the subsidies and welfare?
asked by leereshnie 
math
PROCESSING CLAIMS. Joe takes x hours on the average to process a claim. whereas Ellen's average is 1 hour longer. a) write a rational function C(x) that gives the number of claims that they process while working for an 8hour shift. b) Find C(c)
asked by mohamed 
Math
I have some white and black marbles in a box. There are 30 white marbles. There are 14 more white marbles than black marbles. How many black marbles do I have?
asked by Caroline 
Physics
A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R_1, and it carries a current I_0 uniformly distributed over its cross section. The outer conductor is a cylindrical shell with inner radius R_2 and
asked by Phy 
World Geography
REVIEW 1.Which of the following statements about the natural resources of the United States is most accurate? A. The many agricultural resources of the United States have made up for its lack of other resources.
asked by bre 
Life orientation
Identify and discribe 3 environmental health hazards that cause ill health
asked by Mduduzi 
History
Who was the first president
asked by Anonymous 
Algebra II
I do not understand what this is asking me to do. I've several different ways and I do not feel comfortable with my answer. n^3 5n^2 2n +24 =0 Any guidance would be so helpful
asked by Patty 
World Geography
REVIEW 1.Canada currently ranks first in the world in which category? A. Total number of Internet users B. Percentage of college and university graduates
asked by bre 
Government senior college ikoyi
An equilateral triangle of side 20cm is inscribed in a circle.calculate the distances of a side of the triangle from the centre of the circle.
asked by Monday Godwin 
Maths
How many ordered quadruples of distinct positive integers (a,b,c,d) are there such that 1/a+1/b+1/c+1/d=1?
asked by Ayush 
World Geography
REVIEW 1.Which of the following has made American culture more accessible to the rest of the world? A. Scientific Research B. Imports C. The Internet D. Immigration
asked by bre 
chemistry
a certain a digestive reaction, performed at optimum temperature and pH takes 10 minutes to reach completion when performed in the absence of the associated catalyst. How many minutes would the same reaction require if an enzyme that increase the reaction
asked by meghan 
Discrete Math
Let n be positive integer greater than 1. We call n prime if the only positive integers that (exactly) divide n are 1 and n itself. For example, the first seven primes are 2, 3, 5, 7, 11, 13 and 17. (We should learn more about primes in Chapter 4.) Use the
asked by Ron 
Math
I am having trouble finding an article that incorporates research of confidence intervals to market a new product. I will need to Summarize the information and suggest if is it wise to go ahead and market the product. Do you any suggestions on a article I
asked by Tameika 
math
Able starts off counting at 13, and counts by 7. What is the 11th number that Able will say?
asked by ayan 
World Geography
REVIEW 1.Which of the following was one cause of the Civil War in the United States? A. The South wanted new states to allow slavery and the North did not. B. The North wanted new states to allow slavery and the South did not. C. The North opposed signing
asked by bre 
World Geography
REVIEW 1.What natural resource most attracted European traders to Canada? A. Timber
asked by bre 
World Geography
REVIEW 1.Which of Canada’s regions has limited vegetation and freezing temperatures most of the year? A. Maritime B. Subarctic C. Tundra
asked by bre 
MATH
a baseball team has 15 members, 3 of whom always play and bat at the top of the batting order. For the game Sunday, the starting lineup of nine players will be filed out from the remaining members and a batting order will be set. How many possible betting
asked by HELP 
math
What is the largest possible integer that can be chosen as one of five distinct positive integers whose average is 10?
asked by ayan 
World Geography
REVIEW 1.The forests of the Pacific Northwest are just one of the many different ______________ in the United States where many people work in the same industry. A. elevation regions B. political regions C. climate regions
asked by bre 
math
Let f(x)=2x2+40x+25. Given that f(x) leaves the same remainder when divided by x−a as when divided by x+2a for a positive integer a, what is the value of a?
asked by ayan 
math
Suppose z=a+bi, where a and b are integers and i is the imaginary unit. We are given that 1+iz=1−iz and z−(13+15i)
asked by ayan 
World Geography
REVIEW 1.Where is the majority of Canada’s oil found? A. Along the Atlantic Coast B. Along the border with the United States C. In western Canada
asked by bre 
World Geography
REVIEW 1.In what ways did immigrants contribute to American society in the early 1900s? A. They increased the defensive power of the United States. B. They worked in factories, built railroads, and opened businesses. C. The took political power in most
asked by bre 
Math
Please help me with this problem: A bourbon that is 51 proof is 25.5% alcohol by volume while one that is 82 proof is 41% alcohol. How many liters of 51 proof bourbon must be mixed with 1.0 L of 82 proof bourbon to produce a 66 proof bourbon? Give answer
asked by Lorie 
Chemistry
What is the theoretical mass of the products in the double displacement reaction: CaCl2 (aq) + Na2CO3 (aq) → 2NaCl (aq) +CaCO3 (aq)
asked by Allison 
PHYSICS
A baseball of mass 148g is travelling at 35.0m/s [E] collides with a baseball bat. the collision lasts for 1.10ms. After the collision, the baseball travels at 52m/s [W]. What is the force of the bat on the baseball
asked by R 
PHYSICS
Max is throwing a 57g tennis ball upward and hitting it (with a racket) when it reaches the top of its flight. If the racket exerts an average force of 440N on the ball, find the speed of the ball after the collision (if they are in contact for 4.5ms)
asked by R 
Algebra
The area of a square is 40 in². If the length of each side of the square is 2x in., what is the value of x?
asked by Anonymous 
FINANCE
Pls explain and prodive a resource to fine equation. Computing interest tax savings.Dharma Supply has earnings before interest and taxes (EBIT) of $500,000, interest expenses of $300,000, and faces a corporate tax rate of 35%. a. What is Dharma Supply’s
asked by CHASE 
Math
please help!!!!Apply newtons method to approximate the xvalues of the indicated points of intersection of the 2 graphs. continue the process until 2 successive approximations differ by less than 0.001. (Hint: Let h(x)=f(x)g(x)) f(x)=x^6 g(x)=cos(x) 1)x=
asked by Harry 
Quantative Reasoning College Freshman
Using the formula y=16t^2+vt+h help me with this word problem : A firework rocket is fired straight up into the air with an initial velocity of v=192ft/sec From the top of an apartment building h=48ft off the ground. The firework will explode when it
asked by Bonni 
Quantitative Reasoning ( College Freshman)
For the quadratic function : y=0.25(x+8)(x6) write the function in the vertex form y=a(xh)^2+k by completing the square. Show all work.
asked by Bonni 
maths
Find the area of triangle . in a rightangled triangle, the length of the hypotenuse is 65 cm
asked by anoynomous 
math
i am less than a hundred the sum of my digits is seventeen i am an even number
asked by jessica 
Maths
Using the exact trigonometric ratios of 45 degree,30 degree and 60 degree,evaluate the following,leaving where necessary your answer in surd form. (a) 3 sin 30 degree2 cos 60 degree (b)(tan 45 degree)(4 cos 60 degree2 cos 60 degree)
asked by Shane 
maths
In parabola, give any example of a quadratic equation which doesnot touches the xaxis only.
asked by anoynomous 
Maths
An aeroplane flies due north for 200 km and then turns due east and flies for a further distance of 325km. Find the bearing,to the nearest degree,of the aeroplane from its starting point.
asked by Shane 
maths
The remainder obtained by dividing x^2 3kx +2 by ( x+2) is twice the remainder obtained by dividing x^2 +3x –k by ( x+3). Find the value of k
asked by anoynomous 
physics
A 50kg gun mounted on wheels shoots a 3kg missile directed at an angle of 30 with a horizontal.if the muzzle velocity of missile is 550m/s what is the horizontal recoil velocity of the gun.
asked by nudo 
maths
An airplane is flying at an altitude of 10,000m. The pilot sees two ships A and B. Ship A is due south of P and 22.5km away (in a direct line).Likewise ship B is due East and 40.8km from P. Find the distance between the two ships.
asked by Shane 
maths
Using the complementary angle ratio results,find the value of x for the following. (a) cos(x+35)degree=sin x degree (b) sec x degree=cosec(x+20)degree
asked by Shane 
social studies
19. Identify two problems resulting from urban sprawl in the western region of the United States. If these problems are not solved, what will the outcome likely be? (5 points) I don't want the answer, my question is what was the Urban Sprawl?
asked by Someone 
Electrochemistry
Between Mg and Zn which one is the anode and which one is the cathode? And between Mg and Fe which one is the anode and which one is the cathode? Please and thank you. im so stuck. :/
asked by shyanne 
Math
A scientist is mixing a chemical solution for an experiment. The solution contains 3/8 ounce of a chemical and 1/6 ounce saline solution. What is the unit rate of chemical to saline solution?
asked by Ann 
maths
From an observer 0, the angles of elevation to the bottom and top of the flag pole are 36 degree and 38 degree respectively. The base is 200m. Find the height of the flag pole.
asked by Shane 
maths
From an observer 0, the angles of elevation to the bottom and top of the flag pole are 36 degree and 38 degree respectively. The base is 200m. Find the height of the flag pole.
asked by Shane 
Maths
How many ordered quadruples of distinct positive integers (a,b,c,d) are there such that 1/a+1/b+1/c+1/d=1?
asked by Ayush 
computer science
draw a level 0 diagram as well as a context diagram for the following scenario When renting a car from Banz Car Rental Agency, persons renting a car from the agency will be given a brochure of the type of vehicle, insurance on vehicle and the rental
asked by fernando 
Calculus 3
Let G be the region in the first octant that is inside both the cylinders x^2+y^2=1 and y^2+z^2=1. Use a triple integral to evaluate the volume of G.
asked by Heather 
epidemiology
) In a recently published article authors reported on their research examining the effectiveness of compound C4277, an antiviral agent. This agent was tested to determine its impact on rhinoviruses, which are the leading cause of common colds. The
asked by sara 
Maths
Find all the values of theta between 0 degree and 360 degree, and state the quadrants in which they exist. (a)cos theta=0.71 (b)tan theta=1.732
asked by Shane 
math
what is 25.515 rounded to the nearest cent?
asked by lauren 
algebra 1
suppose xitlali can paint 6 rooms in 12 hours and alicia takes eight hours. how long would it take the two painters together to paint the 6 rooms?
asked by Anonymous 
Accounting
How would the journal entry look if you sold a 8% bond with a face value of $11,000 for $9,500? Bond will mature in 10 years.
asked by Sam 
epidemiology
In a study examining associations between level of education and response to the Philadelphia Public Health Department’s emergency messages to “shelter in place” (meaning stay in your home) following an accidental release of chemicals from the Sunoco
asked by sara 
math
If Deborah ate five pieces of a pizza that was cut into 16 pieces, what percentage of the pizza did she eat?
asked by Jenny 
Life orantation
Discuss 5 ways in which the human or environmental problem impacts on the community.provide relevant sources to support your claims
asked by Nhlanhla mogola 
Physic
How much work W is required to accelerat a 1000kg object from initial velocity of 100m/s to a final velocity of 200m/s?
asked by Cynthia. Rodgers 
Physics
Light with a wavelength of 500 nm (5. 107 m) is incident upon a double slit with a separation of 0.28 mm (2.80 104 m). A screen is located 2.7 m from the double slit. At what distance from the center of the screen will the first bright fringe beyond the
asked by Melissa 
precalc
one to one property, 3^x4=1/27 Need help do not understand
asked by supergirl 
math
If gasoline costs $0.42 a liter, approximately how much will it cost to fill a 40 gallon tank?
asked by Tim 
math
1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing available. Express the area of the enclosures as a function of its dimension. 2) A container company is designing on opentop,
asked by Daniel 
Math
Tom has some baseball cards and football cards. He had four times as many football cards than baseball cards. He has 12 football cards. How many baseball cards does Tom have?
asked by Kristy 
Math
Mike had some pieces of wood to build a doghouse. He cut each piece in fourths. Then he had 24 pieces of wood. How many whole pieces of wood did Mike have to start with?
asked by Kristy 
algebra 2
f(x)= X5 +2
asked by kevin 
mathematics
the cross section of a solid in the form of a cone of height h, and a hemispherical bowl of radius r. the volume of the hemispherical portion is half that of the conical portion. calculate: 1)the ratio r:h 2)the vertical angle of the cone, correct to the
asked by jolomi 
math
what sum will amount to rs 1116 in 4 years at 6%p.a.?
asked by vaidehi 
chemistry
how do I determine the total charge of AsnTyrAsp with a pH 7.4
asked by meghan 
math
in what time a certain sum will become 3 1/4 time at 5%?
asked by vaidehi 
epidemiology
Let’s say you are a health policy expert and you are sitting in your office and you receive a phone call from a news reporter. The reporter asks you to comment for a story she is writing. She has learned from the chief of neurosurgery at Cooper
asked by sara 
math
at what rate of interest a certain sum will be doubled in 8 year?
asked by vaidehi 
math
a man walks a distance 2 1/2 km in 30 minutes what is his speed in km/hours?
asked by vaidehi 
math
Factor the following polynomials. (1 point each) 9. 3x2 – 12 10. 5x3y + 35x2y + 45xy
asked by Boobear 
Science
Describe the geomorphic processes that shape the Earth’s surface. Use the Yosemite Valley to explain one or more of those processes.
asked by Kristy 
Chemistry
Describe how one would obtain the stated pure product from the following mixtures and assume that this cannot be achieved simply by distillation of the original mixture: 1. benzoic acid from a mixture with ammonium benzoate 2. phenylamine from a mixture
asked by Matt