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2011
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Questions Asked on April 7, 2011

If 1100 square centimeters of material is available to make a box with a square base and an open top, find the largest possible
1. 2 answers
2. asked by Eva
3. 7,396 views
Let f(x)=e^(2x)-kx, for k greater than 0.Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4.
1. 1 answer
2. asked by Eva
3. 4,733 views
an oil drop has a charge of 8.0 x 10^-19 C. How many excess electrons does the oil drop have?
1. 1 answer
2. asked by Sejul
3. 4,498 views
The moment of inertia of a solid uniform sphere of mass M and radius R is given by the equation I=(2/5)MR2 . Such a sphere is
1. 2 answers
2. asked by Anonymous
3. 4,337 views
a) The x-coordinate of an electron is measured with an uncertainty of 0.20 mm. What is the xcomponentof the electron’s
1. 2 answers
2. asked by B. Ramez
3. 4,168 views
Given: The energy equivalent of one gallon ofgasoline is 1.3 × 108 J. A compact car has a mass of 847 kg, and its efficiency is
1. 2 answers
2. asked by anonymous
3. 3,882 views
If the reaction below proceeds with a 96.8% yield, how many kilograms of CaSO4 are formed when 5.97 kg SO2 reacts with an excess
1. 1 answer
2. asked by za
3. 3,279 views
Write two numbers that have the given absolute value.4 38 260 4092 I know one is 4 but do not know the second unless it is -4 Do
1. 2 answers
2. asked by Scott
3. 3,073 views
A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is 15.a) Compute the 95 %
1. 3 answers
2. asked by TIMBERLY
3. 2,849 views
what is the solubility of potassium nitrate (KNO3) in 100.0g of water at 80.0 degrees celcius?
1. 1 answer
2. asked by veronica
3. 2,675 views
A triangles shows the altitude qt and pm of triangle pqr. If qr=8cm , pr=7cm and qt=4cm what is pm?
1. 5 answers
2. asked by Onile ganiyu lukman
3. 2,529 views
What is the magnitude of the force per meter of length on a straight wire carrying an 8.50 -A current when perpendicular to a
1. 1 answer
2. asked by Samantha
3. 2,358 views
A car of mass = 1200 traveling at 60.0 enters a banked turn covered with ice. The road is banked at an angle , and there is no
1. 2 answers
2. asked by Brooke
3. 2,319 views
Sarah draws a card from a deck of 52 cards. She receives 40 cents for a heart, 50 cents for an ace, and 90 cents for the ace of
1. 2 answers
2. asked by Traci
3. 2,268 views
Let p(x)=x^2(a−x), where a is constant and a greater than 0.Find the local maxima and minima of p. (Enter your maxima and
1. 2 answers
2. asked by Claudia
3. 2,203 views
A line segment has an endpoint at (3,2). If the midpoint of the line segment is (6.-2), what are the coordinates of the point at
1. 2 answers
2. asked by jake
3. 2,085 views
A 65kg boy and his 40kg sister, both wearing roller blades, face each other at rest. The girl pushes the boy hard, sending him
1. 1 answer
2. asked by Hadeel
3. 2,038 views
Whether you're persuaded by a message will primarily depend on which factor? a.) your preception understanding of the recipient
1. 1 answer
2. asked by alisha s
3. 1,776 views
14.Parks A survey of 300 parks showed the following. 15 had only camping. 20 had only hiking trails. 35 had only picnicking. 185
1. 0 answers
2. asked by Sarah
3. 1,762 views
particular factors encourage people to be drawn into liking one another. in this context the reciprocity of liking effect is
1. 2 answers
2. asked by alisha s
3. 1,723 views
find the subject and the predicate in these sentences??????????1.There is large envelope on the table. 2.Lend me your
1. 2 answers
2. asked by madhur
3. 1,683 views
A stone is shown at rest on the grounda vector shows the weight of the stone. complete the vector diagram showing another vector
1. 1 answer
2. asked by felicia
3. 1,638 views
a shipping box is shaped like a rectangular prism.it has a total volume of 96 cubic inches. the height is two inches less than
1. 1 answer
2. asked by briana
3. 1,598 views
For propanoic acid (HC3H5O2, Ka = 1.3 10-5), determine the concentration of all species present, the pH, and the percent
1. 1 answer
2. asked by Ryu
3. 1,542 views
dynamicsA curling stone has a mass of 20kg. a curler pushed the stone across the ice to launch it down the rink. a)if the curler
1. 1 answer
2. asked by peter
3. 1,503 views
Determination of the solubility product of PbI2. From the experimental data we obtain [I-] directly. To obtain Ksp for PbI2, we
1. 1 answer
2. asked by Laura
3. 1,468 views
What total mass of a 16 gram sample of 60co will remain unchanged after 15.8 years?
1. 1 answer
2. asked by Anonymous
3. 1,464 views
A raindrop (mass 1.00 g) is travelling at a speed of 40m/s when it hits the surface of 100 g of water contained in a drinking
1. 1 answer
2. asked by Mark
3. 1,444 views
the widthe width of a rectangle is 6 inches less than the length. the perimeter is 72 inches. find the lengtj and the width
1. 1 answer
2. asked by Anonymous
3. 1,411 views
A bell rings every 2 hours, a second bell rings every 3 hours, and a third bell rings every 4 hours. If all 3 bells ring at 9:00
1. 3 answers
2. asked by Anonymous
3. 1,394 views
Can a golden rectangle have a shorter base than height? I'm not sure how to answer this can you please help :)
1. 1 answer
2. asked by Jake
3. 1,374 views
An explorer in the dense jungles of equatorial Africa leaves his hut. He takes 43 steps at an angle 45north of east, then 80
1. 2 answers
2. asked by Allison
3. 1,353 views
If you triple 4 and subtract 2 each day, how many days until you have zero?
1. 1 answer
2. asked by JOE
3. 1,334 views
Huck struggles to decide what he should do when his heart and his conscience pull him in different directions. He eventually
1. 1 answer
2. asked by Elizabeth
3. 1,311 views
how to put weights in order from least to greatest
1. 2 answers
2. asked by tyana
3. 1,284 views
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 25.0° and the angle of refraction
1. 2 answers
2. asked by julie
3. 1,248 views
An empty flask weighs 128.632g. After vaporization of a sample of volatile liquid, at a measured temperature of 99.8 C. The
1. 4 answers
2. asked by Shannon
3. 1,229 views
A person is jogging at 3.5 m/s and grabs a rope that is hanging vertically from a tree. How high can the student swing?
1. 1 answer
2. asked by Wendy A.
3. 1,228 views
Why do tomatoes ripen faster in a greenhouse?
1. 1 answer
2. asked by Rashmi
3. 1,222 views
Mars orbits the Sun at a mean distance of 228 million km, in a period of 687 days. The Earth orbits at a mean distance of 149.6
1. 0 answers
2. asked by Eduardo
3. 1,199 views
Who were the four other major contributors to the development of modern astronomy after Copernicus? Explain what those
1. 0 answers
2. asked by Chaseone
3. 1,195 views
I did an experiment using 20ml of 0.1M acetic acid and added 8ml of 0.1M NaOH. pH obtained after adding NaOH was 5.2. How do i
1. 1 answer
2. asked by Jude
3. 1,192 views
What are parametric equations?How would you find the rectangular eq's when given parametric eq's? and how would you find
1. 0 answers
2. asked by Haley
3. 1,185 views
Janes Company provided the following information on intangible assets:a. A patent was purchased from the lou Company for
1. 1 answer
2. asked by Bobbi Loffredo
3. 1,180 views
The propmt is Write a story about a time that I did something that caused me to feel pride in myself. What is this action and
1. 4 answers
2. asked by Rebecca
3. 1,167 views
5. The surface of a glass plate (index of refraction n3 = 1.50) is coated with a transparent thin film (index of refraction n2 =
1. 1 answer
2. asked by Anthony
3. 1,141 views
perform the indicated operation and simplify013/18 /20/27
1. 3 answers
2. asked by victoria
3. 1,126 views
I don't want someone to do this for me-I'm just totally lost and don't even know where to start-I'm totally lost on this one-
1. 2 answers
2. asked by Rafaela
3. 1,115 views
Silver ion reacts with excess CN- to form a colorless complex ion,Ag(CN)2 , which has a formation constant Kf = 3.0*10^20 .Calcu
1. 2 answers
2. asked by Kris
3. 1,107 views
a hotel chain charges $120 per room and rents an avg of 40 rooms per night at this rate. For each $10 reduction in price, they
1. 0 answers
2. asked by cat
3. 1,105 views
In one section of the pool, there is a thin film of oil on the surface of the water. The thickness of the film is1.0 X l0^-7
1. 1 answer
2. asked by Anthony
3. 1,104 views
An engine provides a 10kw of power to lift a heavy load at a constant velocity a distance 20m in 5s. what is the mass of the
1. 5 answers
2. asked by Anonymous
3. 1,103 views
This is a hard question as it has a diagram.Basically the diagram states: Victoria - Montreal costs $580 Victoria - Saskatoon
1. 0 answers
2. asked by Alicia
3. 1,096 views
A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the
1. 1 answer
2. asked by Jess
3. 1,080 views
Those are the only ones I can't seem to resolve. Thank you!resolve x: 1) 9*3^0,51x = 315 2) 10*3^15x+21 =363*2^9x+51 3)
1. 0 answers
2. asked by Ralph
3. 1,079 views
Find a formula for a curve of the form y=e^((−(x−a)^2)/b) for b greater than 0 with a local maximum at x=−5 and points of
1. 1 answer
2. asked by Claudia
3. 1,072 views
For a set of data with mean 12 and variance 9, approsimately 68% of the values will fall between 6 to 18. Is the true or false
1. 2 answers
2. asked by Belinda
3. 1,072 views
Determination of the solubility product of PbI2. From the experimental data we obtain [I-] directly. To obtain Ksp for PbI2, we
1. 1 answer
2. asked by Tiffany
3. 1,033 views
In order to be allowed to go on a does trip, 80% of the students in a class must pads a pop quiz. If there are 26 students in
1. 1 answer
2. asked by Caitlin
3. 1,030 views
dynamicsA curling stone has a mass of 20kg. a curler pushed the stone across the ice to launch it down the rink. a)if the curler
1. 0 answers
2. asked by bob
3. 1,021 views
A vilatile liquid was allowed to evaporate in a 43.298 g flask that has a total volume of 252 ml. The temperature of the water
1. 2 answers
2. asked by Linda
3. 1,019 views
An 8.5 x 10^2 elevator is pulled up at a constant velocity of 1 m/s by a 10 kW motor. Calculate the efficiency of the motor.
1. 3 answers
2. asked by Wendy A.
3. 1,007 views
Up owns 80% of Down. During 2009 Down began selling merchandise to Up at gross profit margin of 20%. Sales by Down to Up for the
1. 1 answer
2. asked by Oksana
3. 999 views
Region A that on xy-plane is bounded by two (2) curves and a line. The curves are y=x^3-2x+3 and y=-x^2+3 while the line is x=0.
1. 1 answer
2. asked by AIRA
3. 997 views
Calculate [H3O+] for each of the following solutions.a)pH = 8.59 i got 3.00e-9 but it said it was wrong. what am i doing wrong.
1. 5 answers
2. asked by Beth
3. 983 views
Dsoft manufactures PC’s. The company’s Notebook Division reports the following results for the current year:Sales Revenue
1. 0 answers
2. asked by Anonymous
3. 978 views
how much heat is needed to melt 25.4 grams of iodine at its melting point?(Hfusion+61.7J/g)
1. 1 answer
2. asked by kara
3. 978 views
The seeing ability, or resolution, of radiation is determined by its wavelength. If size of an atom isof the order of 0.1 nm,
1. 1 answer
2. asked by Vanda
3. 973 views
The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the
1. 1 answer
2. asked by Denise
3. 956 views
A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the
1. 2 answers
2. asked by Jess
3. 948 views
The samurai of Japan were analogous to what European class of people?A. serfs B. slaves C. nobility D. monarchs I think the
1. 1 answer
2. asked by Rebecca
3. 948 views
The Ka for hydroflouric acid is 4.5 *10^-4 at 298K. Calculate the amount of sold NaF that is required toprepare a 250. mL acidic
1. 1 answer
2. asked by Jake
3. 948 views
how would you illustrate the impact of each of the following events on a production possibilities curve for factory goods and
1. 0 answers
2. asked by dana
3. 945 views
Consider the following reactionAl(OH)3 + 3HCL ____>ALCL3 How many milliltres of 0.8 M HCL will react with 2g of AL(OH)3 ??
1. 2 answers
2. asked by roro
3. 937 views
What kind of sentence is:The state park in the rocky mountains is beautiful, lots of things to do.
1. 4 answers
2. asked by Troy
3. 927 views
the mean and standard deviation of the grades of 500 students who took an maths exam were 69 and 7 respectively. if the grades
1. 2 answers
2. asked by lisa
3. 924 views
how much heat is absorbed when 500.g of copper goes from 25.0 celcius to 35.0 celcius?
1. 2 answers
2. asked by Anonymous
3. 910 views
write a brief paragraph that tells how the words matter,element,atom,crystal,compound,and molecule relate.
1. 3 answers
2. asked by unknown
3. 909 views
which typ(s) of RNA is/are involved in protein synthesis?
1. 3 answers
2. asked by Sam
3. 905 views
During scuba lessons Sue dove 30 feet. Harriet dove 120 feet, and Kathy dove 90 feet. What integers represent these depths?
1. 2 answers
2. asked by Scott
3. 897 views
Let f(x)=e^(2x)-kx, for k greater than 0.Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4.
1. 0 answers
2. asked by Eva
3. 891 views
In Circle A, AB=12 and measure of angle BAC= 60. Find the lenght of Arc BC
1. 1 answer
2. asked by Anonymous
3. 890 views
Describe and explain 5 rights and/or responsibilities of the worker with regards to safety in the workplace.This is the
1. 3 answers
2. asked by Anonymous
3. 881 views
I can never do word problems...please help!!!!Larry is 8 yrs older than his sister.In 3 yrs, hr will be twice as old as she will
1. 2 answers
2. asked by Bella
3. 879 views
1) A 1.0 kg mass is attached to the end of a vertical ideal spring with a force constant of 400 N/m. The mass is set in simple
1. 1 answer
2. asked by arun
3. 871 views
Tooth enamel is made up of hydroxyapatite, Ca_10(PO_4)_6(OH)_2 or the empirical formula, Ca_5(PO_4)_3(OH). Use the empirical
1. 1 answer
2. asked by John
3. 835 views
If the mean of a set of data is 20.00 and 12.20 has a z-score of -1.30, then the standard deviation must be: What formula would
1. 2 answers
2. asked by Belinda
3. 833 views
Would the molar mass become high or low if water vapors condensed under the aluminum foil before the final weighing?
1. 1 answer
2. asked by Linda
3. 832 views
The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the
1. 1 answer
2. asked by Denise
3. 826 views
1 ) A sample of vapor occupies a volume of 125 ml at 100 celcius and 748 torr. What is its volume under STP conditions?2) A
1. 4 answers
2. asked by mark matat
3. 826 views
Two teams have played each other 14 times. Team A won 9 games and team B won 5 games. Bob offers to bet $6 on team A winning
1. 1 answer
2. asked by Traci
3. 815 views
A convex mirror has a focal length of 19.0 cm. Determine the object location for which the image will be one-fourth as tall as
1. 1 answer
2. asked by julie
3. 803 views
The book ends with Huck saying he's going to "light out for the Territory ahead of the rest." But there's a part of me that
1. 1 answer
2. asked by Elizabeth
3. 800 views
the mean and standard deviation of the grades of 500 students who took an maths exam were 69 and 7 respectively. if the grades
1. 0 answers
2. asked by lisa
3. 794 views
the density of a diamond is 3.52 grams per cubic centimeter. Sally has a diamond that has a volume of 20 mm^3. What is the
1. 1 answer
2. asked by Dan
3. 786 views
mandy has decided that she has no control over the aversive stimull she encounters at work and at home day by day. thus, she has
1. 1 answer
2. asked by alisha s
3. 784 views
Describe and explain 5 rights and/or responsibilities of the worker with regards to safety in the workplace.This is the
1. 0 answers
2. asked by Anonymous
3. 768 views
In a scene in an action movie a person is being chased across a roof top. To escape, the person runs off the edge of the
1. 0 answers
2. asked by H.T
3. 767 views
what are the factors of industrial development
1. 0 answers
2. asked by hunt
3. 764 views
The potential difference applied to an X-ray tube is 5 kV and the current through it is3.2 mA. Then the number of electrons
1. 1 answer
2. asked by sunil
3. 753 views

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