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2010
November

Questions Asked on November 30, 2010

What does a boy who likes to play with switches do
1. 13 answers
2. asked by Anonymous
3. 7,564 views
A car slows down from +32 m/s to +8 m/s in 4s. Calculate the acceleration .
1. 6 answers
2. asked by jess
3. 5,428 views
Consider the following equation:4NH3(g) + 5O2(g)----> 4NO(g)+6H2O(g) a. How many liters of oxygen are required to react with 2.5
1. 1 answer
2. asked by Ivy
3. 4,344 views
what are some reasons for controlling fullness
1. 9 answers
2. asked by nickey
3. 4,124 views
The ocean covers about 71% of the Earth's surface. If the total surface area of the Earth is about 510 million square
1. 3 answers
2. asked by Hayley
3. 4,051 views
A particle moves along the x-axis with position at time t given by x(t)=e^(-t)sin(t) for 0 is less than or equal to t which is
1. 1 answer
2. asked by Leanna
3. 3,822 views
A 275-g. sample of nickel at 100 degrees C is placed in 100 g. of water at 22 degrees C. What is the final temperature of water?
1. 2 answers
2. asked by Anonymous
3. 3,553 views
an empty rectangle tank with a base area of 2400 cm^2 is filed with water from 2 taps. one tap can fill the tank with 12L of
1. 1 answer
2. asked by Katherine
3. 3,140 views
A projectile is fired with an initial speed of 1000 m/s at an angle of 37 degrees above the horizontal. If air resistance is
1. 2 answers
2. asked by anonymous
3. 2,949 views
If the sides of a triangle are in the ratio 3:4:5 and the perimeter of the triangle is 72 inches what are the lengths of the
1. 8 answers
2. asked by Debbie
3. 2,924 views
Consider the reaction,CH4(g) + 2 O2(g) => CO2(g) + 2 H2O(g). How many grams of H2O(g) will be made by the reaction of 17 moles
1. 2 answers
2. asked by Alle
3. 2,706 views
a local grocery store has plans to construct a rectangular parking lot that is bordered on one side by a highway. there are 1280
1. 5 answers
2. asked by Anonymous
3. 2,674 views
A mixture of argon and mercury vapor usedin advertising signs emits light of wavelength 610 nm. Calculate the energy change
1. 1 answer
2. asked by Billy
3. 2,671 views
An air puck of mass m1 = 0.45 kg is tied to a string and allowed to revolve in a circle of radius R = 1.0 m on a frictionless
1. 4 answers
2. asked by melissa
3. 2,620 views
a 5.0 kilogram block weighing 49 newtons sits on a frictionless, horizontal surface, a horizontal force of 20. calculate the
1. 2 answers
2. asked by antonet
3. 2,378 views
A rifle is fired horizontally and travels 200.0 m The rifle barrel is 1.90m from the ground. What speed must the bullet have
1. 3 answers
2. asked by anonymous
3. 2,320 views
The net ionic equations for the following1. Dissolution of silver oxalate with nitric acid 2. Complexation of the iron(III) by
1. 2 answers
2. asked by Jake
3. 2,314 views
The amount A in grams of radioactive plutonium remaining in a 20-gram sample after t days is given by the formula
1. 1 answer
2. asked by Sara
3. 2,307 views
The solubility of zinc oxalate is 7.9 x 10 ^-3 M at 18 degrees C. Calculate its Ksp.
1. 1 answer
2. asked by Pink
3. 2,270 views
find f(a), if f(t) = 2t2(squared)-t-2A. 2(a+t)2(squared)-2t+1-2 B. 2(t+a)2(squared)-2(t+a)-2 C. 2a2(squared)-a-2 D.
1. 5 answers
2. asked by sara
3. 2,257 views
For each sentence write whether the sentence is in the active or passive voice.1.Pygmalion was written by George Bernard Shaw.
1. 4 answers
2. asked by TiffanyJ
3. 2,215 views
Es época de elecciones nacionales. Durante el almuerzo, los empleados opinan y discuten de política. Completa el diálogo con
1. 7 answers
2. asked by Jay
3. 2,155 views
1. An exterior angle of a regular polygon measures 30 degrees. What is the measure of an interior angle?30 60 120 150 2. How
1. 2 answers
2. asked by Justin
3. 2,110 views
Tu amiga tiene muy mala memoria, te prestó algunas cosas pero tú le devolviste todo. Escucha sus preguntas y contéstalas
1. 1 answer
2. asked by AYUDA ME PORFAVOR!! :)
3. 2,093 views
your school has been invited to send a team of students to take part in the association of World Youth Groups.write a letter to
1. 4 answers
2. asked by sweetie
3. 2,055 views
given the reaction: 2 Al + 3 H2SO4 -> Al2(SO4)3 + 3 H2what volume of H2 gas measured at STP will be produced from 5.4 grams of
1. 1 answer
2. asked by lianne
3. 2,010 views
Suppose you are riding a stationary exercise bicycle, and the electronic meter indicates that the wheel is rotating at 8.6
1. 1 answer
2. asked by michelle
3. 1,994 views
Felicia, the ballet dancer, has a mass of 45.0 kg. a.) What is Felicia's weight on Earth? b.) What is Felicia's mass o Jupiter,
1. 2 answers
2. asked by Jay
3. 1,954 views
25) A 75-g ice cube at 0 C is placed in 825g of water at 25 C. a) What is the final temperature of the mixture? b) If the final
1. 2 answers
2. asked by Y0gi
3. 1,833 views
What volume of 2.5% (w/v) KOH can be prepared from 125 mL of a 5.0% KOH solution?
1. 5 answers
2. asked by Madison
3. 1,751 views
1. How many sides does a regular polygon have if one exterior angle is 90 degrees?3 4 5 6 2. The measures of three angles of a
1. 1 answer
2. asked by Justin
3. 1,744 views
Solve for x.-3x - 8 + 6x = 7
1. 2 answers
2. asked by josh
3. 1,700 views
a gas occupies a volume of 410mL at 27 degrees Celcius and 740mm Hg pressure. Calculate the volume the has would occupy at STP.
1. 2 answers
2. asked by samantha
3. 1,669 views
A glass windowpane in a home is 0.62 cm thick and has dimensions 1.0 m x 2.0 m. On a certain day, the indoor temperature is 25 C
1. 2 answers
2. asked by Y0gi
3. 1,586 views
Which of the following statements regarding marketing strategies is FALSE?A. These strategies must meet the needs of target
1. 1 answer
2. asked by Anonymous
3. 1,563 views
60) A class of 10 students taking an exam has a power output per student of about 200W. Assume the initial temperature of the
1. 2 answers
2. asked by Y0gi
3. 1,560 views
25) A 75-g ice cube at 0 C is placed in 825g of water at 25 C. a) What is the final temperature of the mixture? b) If the final
1. 3 answers
2. asked by Y0gi
3. 1,554 views
A projectile was fired at 35 degrees above the horizontal. At the highest point in its trajectory its speed was 200 m/s. If air
1. 0 answers
2. asked by AJ
3. 1,541 views
WO3 (s) + 3 H2 (g) -> W (s) + 3 H20 (g)Tungsten is obtained commercially by the reduction of WO3 with hydrogen according to the
1. 1 answer
2. asked by Jeffery
3. 1,446 views
Classify each of the following reactions in as many ways as possible. (Select all that apply.)CuO + 2 HCl --> CuCl2 + H2O you
1. 7 answers
2. asked by hannah
3. 1,445 views
An expandable balloon contains 1400L of He at .950atm pressure and 18 degrees Celcius. At an altitude of 22 miles (temperature
1. 1 answer
2. asked by annonymous
3. 1,437 views
Suppose that the number of bacteria in a culture at time t is given byN = 4950 ( 28 + t*e ^(-t/24)) Find the LARGEST and
1. 1 answer
2. asked by Elisa
3. 1,398 views
if C6H12O6 -> 2 C2H5OH + 2 CO2 represents the fermentation of sugar to produce alcohol, and the reaction is only 40.0% efficient
1. 1 answer
2. asked by lianne
3. 1,373 views
A diver exhales a bubble with a volume of 25 mL at a pressure of 2.4 atm and a temperature of 15 degrees C. how many gas
1. 5 answers
2. asked by Jennifer
3. 1,372 views
1. What is the Kelvin temperature of a system in which 4.50 mol of a gas occupy 0.250 L at 4.15 atm?2. In the lab, students
1. 1 answer
2. asked by Ivy
3. 1,367 views
The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a free-body diagram
1. 0 answers
2. asked by max
3. 1,351 views
Positive charge is distributed throughout a long non-conducting cylindrical shell of innerradius R and outer radius 2R. At what
1. 0 answers
2. asked by fatima
3. 1,332 views
Solve using Determinants and Cramer's Rule?I was absent and missed the lecture on Cramer's rule and Determinants and have no
1. 3 answers
2. asked by Euphoria
3. 1,331 views
a motorboat takes 4 hrs to travel 256 miles going upstream. the return trip takes 2 hours going down stream. what is the rate of
1. 3 answers
2. asked by mandy
3. 1,321 views
19) A 100-g aluminum calorimeter contains 250g of water. The two substances are in thermal equilibrium at 10 C. Two metallic
1. 6 answers
2. asked by Y0gi
3. 1,277 views
2 rainstorms occurred in one week in a certain area in the first storm, 15ml of rain fell per hour, and in the second storm,
1. 1 answer
2. asked by leeann
3. 1,246 views
1) a force of 10 N acts on a 5.0 kg object, initially at rest, for 2.5 s. What is the final speed of the object?2) a 1500 kh
1. 1 answer
2. asked by Joceylin
3. 1,241 views
55) A 200-g block of copper at a temperature of 90 C is dropped into 400g of water at 27 C. The water is contained in a 300-g
1. 2 answers
2. asked by Y0gi
3. 1,234 views
obtuse triangle ABC with obtuse angle B. Point D on side AC such that angle BDC is also obtuse. Angle DAB is 2/3 of angle ABD.
1. 3 answers
2. asked by suzy
3. 1,228 views
Enthalpy and Entropy in Reactions and SolutionsIntroduction In the course of most physical processes and chemical reactions
1. 1 answer
2. asked by allison
3. 1,195 views
3fe+H2O----Fe3O+4H2how many grams of steam and iron mist reat to produce 375g of magnetic iron oxide
1. 3 answers
2. asked by ngugi
3. 1,174 views
Carborundum Metals issues commercial paper with a face value of $1,000,000 and a maturity of three months. Carborundum receives
1. 0 answers
2. asked by KEVIN
3. 1,163 views
a regular hexagon is inscribed in a circle. The radius of the circle is 18 units. What is the area of the region bounded by the
1. 1 answer
2. asked by suzy
3. 1,153 views
what is the equilibrium concentration of acetate ion if the equilibrium concentration of acetic acid is .40 M, the pH is 3.85,
1. 1 answer
2. asked by Anna
3. 1,144 views
if 500 ml of HCl solution is needed to react with 2.43 g of Mg, what is the molarity of the HCl solution?
1. 3 answers
2. asked by Lynn
3. 1,137 views
Can someone tell me what formula I should use?The number of milligrams of tar in filtered and unfiltered cigarettes is being
1. 0 answers
2. asked by Samuel
3. 1,121 views
What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s
1. 0 answers
2. asked by karen
3. 1,120 views
An elevator manufacturing company is stress-testing a new elevator in an airless test shaft. The elevator is traveling at an
1. 3 answers
2. asked by Thomas
3. 1,117 views
a recipe for rice pudding uses 1/2 cup of rice and serves 6 people. write the cups of rice per person as a unit rate. how many
1. 1 answer
2. asked by jane
3. 1,111 views
The three coordinate points are collinear. Use slopes to write aproportion to find the value of a.#38. (-4,1),(-1,2),(5,a) #39.
1. 1 answer
2. asked by chica
3. 1,110 views
if 100 g of iron were reacted with 100 g of oxygen according to the reaction below, the maximum yield in grams of Fe2O3 would
1. 2 answers
2. asked by Lynn
3. 1,095 views
I have a question about this phrase translated to Spanish."Well, yes. I enjoy studying Spanish very much." Is it this way? Pues
1. 2 answers
2. asked by Jeff
3. 1,091 views
player kicks football from ground level with velocity of32 m/s at an angle of 40 degrees above horizontal. What is hang time of
1. 2 answers
2. asked by chelsie
3. 1,086 views
Find:(a) the interval(s) on which f is increasing, (b) the interval(s) on which f is decreasing, (c) the open interval(s) on
1. 0 answers
2. asked by Please Help
3. 1,081 views
An electrochemical cell is created using gold and magnesium half-cells.a. Determine which half-cell will undergo oxidation and
1. 1 answer
2. asked by Jeffery
3. 1,080 views
If I have a diagram of Kepler's laws of planetary motion and it shows change in t1 larger than change in t2 and A1 larger than
1. 0 answers
2. asked by JamieLynne
3. 1,061 views
A firm is considering locating a 100 employee microprocessor production facility in one of Aland’s cities. The products this
1. 0 answers
2. asked by Candie
3. 1,058 views
classify in as many ways possible2 Rb(s) + Br2(g) --> 2 RbBr(s) acid-base double-displacement gas evolution oxidation-reduction
1. 1 answer
2. asked by rebekah
3. 1,051 views
A 625-kg racing car completes one lap in 14.3 s around a circular track with a radius of 50.0 m. The car moves at constant
1. 5 answers
2. asked by john
3. 1,049 views
A mixture contains solids: Aluminium,camphor and sugar.Explain how you would obtain a sample of solid sugar from the mixture.
1. 5 answers
2. asked by Benjamin
3. 1,046 views
Master Chief is trapped on an island with a Scorpion Tank as his only means of defense.An enemy Covenant jet fighter just landed
1. 1 answer
2. asked by Duane
3. 1,038 views
Find the pH of a buffer that consists of 1.6 M sodium phenolate (C6H5ONa) and 1.0M phenol (C6H5OH). (pKa of phenol=10.00)
1. 1 answer
2. asked by Kate
3. 1,020 views
The distance between Sue and a dude ranch was 30 mi. straight accross a rattlsnake-infested canyon. Instead of crossing the
1. 0 answers
2. asked by antonne
3. 1,005 views
The mouth, small intestine, and kidneys have functions that involve thea. digestion of food, synthesis of vitamins, and
1. 1 answer
2. asked by Lily
3. 1,005 views
Write the balanced equation and solubility product expression for the solubility equillibrium of Mn3(PO4)2:Ksp expression?
1. 1 answer
2. asked by Karly
3. 992 views
A 7.2 cm tall cylinder floats in water with its axis perpendicular to the surface. The length of the cylinder above water is 1.4
1. 2 answers
2. asked by kate
3. 982 views
Write a c program (1.Add record 2.Delete record 3.View record 4.Search record) for bike category.?
1. 0 answers
2. asked by bappi
3. 968 views
I had to react 1-propanol with NaBr and H2SO4. I refluxed for one hour and when attempting to separate out the product (product
1. 3 answers
2. asked by Meredith
3. 959 views
RectanglesThe ratio of the length to the width of one rectangle is proportional to the ratio of the length to the width of a
1. 2 answers
2. asked by chica
3. 956 views
how to rewrite rule in symbols:At a certain time of day,the length of a shadow s cast by an object is twice the length of the
1. 1 answer
2. asked by ursula
3. 948 views
If one parent has AB and one parent has O blood types, what are the possibilities of blood types for their children
1. 0 answers
2. asked by laura
3. 946 views
A mixture of 8.00 g He and 26.5 g Ne has a pressure of 820. mm Hg. What is the partial pressure of each of the gases?
1. 1 answer
2. asked by rose
3. 943 views
A supplier provides parts to a manufacturing company that demands JIT deliveries. At the present time it takes 6 hours to make a
1. 1 answer
2. asked by jackie
3. 943 views
An aqueous mixture containing starch (a colloid), NaCl, glucose, and albumin (a colloid) is placed in a dialyzing bag and
1. 0 answers
2. asked by Madison
3. 942 views
Use the given ratio and information in the figure to find the value of the variable(s).XY:YZ:XZ=7:10:14 XY=b-7 These are side
1. 1 answer
2. asked by chica
3. 940 views
I have a project english composition 205, about the tom wait's musician
1. 1 answer
2. asked by Mirna
3. 940 views
which of the following is NOT a unit of measurment in the metric systemA. Meter B. Liter C. Pint D. Gram
1. 2 answers
2. asked by Mare
3. 940 views
on monday 86 science fiction books were sold at a book sale this is 8 more than twice the amount sold on thursday how many
1. 2 answers
2. asked by felix
3. 936 views
A 250-gram pendulum bob is initially constrained at a 53 degree angle by two strings. When the horizontal string is cut the
1. 0 answers
2. asked by Jenny
3. 935 views
A light spring of spring constant k = 160 N/m rests vertically on the bottom of a large beaker of water. A 5.00 kg block of wood
1. 0 answers
2. asked by melissa
3. 927 views
I am doing a project on the mixedwood plains. I have written this question before but I just want to know if I am on the right
1. 1 answer
2. asked by peyton
3. 901 views
Using the compound for Ibuprofen C13H18O2 find molecules of Ibuprofen that contain 2.84 x10 23 atoms of HydrogenSo for every 1
1. 2 answers
2. asked by TMV
3. 901 views
Find:(a) the interval(s) on which f is increasing, (b) the interval(s) on which f is decreasing, (c) the open interval(s) on
1. 2 answers
2. asked by Dan
3. 892 views
The value V, in dollars, of a shopkeeper’s inventory software program is given by V=-50t+300,where t is the number of years
1. 1 answer
2. asked by Mary
3. 885 views
A 9 kg block initially at rest is pulled to theright along a horizontal, frictionless surface by a constant, horizontal force of
1. 2 answers
2. asked by Anonymous
3. 881 views

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