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Questions Asked on January 27, 2011

Many power plants produce energy by burning carbon-based fuels, which also produces CO2. CO2 is a greenhouse gas, so
1. 24 answers
2. asked by Harold
3. 18,896 views
The diameter of the wheels on your car (including the tires) is 25 inches. You are going to drive 305 miles today. Each of your
1. 3 answers
2. asked by Anonymous
3. 6,122 views
A stationary 1.67 kg object is struck by a stick. The object experiences a horizontal force given b F = at-bt^2, where t is the
1. 3 answers
2. asked by sandhu
3. 4,253 views
Pure gold has a density of 19 g/ml. If you bought a gold ring and found it had a volume of 0.3 ml and it weighed 5.7 grams, is
1. 2 answers
2. asked by Jerome
3. 3,924 views
Both Greta and Fred were on the bus that arrived in Pittsburgh. Fred was glad to be home. He looked forward to visiting with old
1. 6 answers
2. asked by shamso
3. 3,794 views
Experimental Procedure, Part F. A 1.0- mL volume of 0.010 M H2SO3 is added to a mixture of 12 drops of 0.01 M HIO3, 8 drops of
1. 1 answer
2. asked by john
3. 3,106 views
(a) Assuming that each cubic centimeter of water has a mass of exactly 1 g, find the mass of 3.76 cubic meter of water in kg.
1. 2 answers
2. asked by sagara
3. 3,053 views
If a fish can swim short distances at 48km/h, how long would the fish take to reach a smaller fish that is 3m away?
1. 9 answers
2. asked by bo
3. 2,434 views
Compute the value of the discriminant and give the number of real solutions to the quadratic equation.2x^2+5x-7=0 Discrimnant=
1. 2 answers
2. asked by Jessica
3. 2,297 views
A putting green is located 240ft horizontally and 64ft vertically from the tee. What must be the magnitude and direction of the
1. 1 answer
2. asked by Jonathan
3. 2,296 views
A 2.2 kg mass is attached to a spring with a force constant of 560 N/m on a smooth horizontal surface. The mass is pulled to one
1. 2 answers
2. asked by Erica L
3. 2,285 views
What if we made a pattern by joining pentagons? If the length of each side of the pentagon is 1 unit, then what would be the
1. 2 answers
2. asked by Lily
3. 2,265 views
At an air show, a jet plane has velocity components Vx = 625 and Vy = 415 at time 3.85s and Vx = 838 and Vy = 365 at time 6.52s
1. 3 answers
2. asked by andrea
3. 2,202 views
five students make the following guesses on the number of jelly beans in a jar: 72, 78, 68, 60 and 84. the guesses were off by
1. 9 answers
2. asked by kristin
3. 2,130 views
A 0.75 L bottle is cleaned, dried, and closed in a room where the air is 20°C and 42% relative humidity (that is, the water
1. 1 answer
2. asked by Ashley
3. 1,930 views
What is the kinetic energy of a 20 kg dog that is running at a speed of 7.3 m/s (about 16 mi/h)?
1. 1 answer
2. asked by Shay
3. 1,794 views
A clump of soft clay is thrown horizontally from 30.63 m above the ground with a speed of 30.0 m/s. Where is the clay after 3.8
1. 1 answer
2. asked by lala
3. 1,666 views
Two carts with masses of 15.5 kg and 1.0 kg, respectively, move in opposite directions on a frictionless horizontal track with
1. 4 answers
2. asked by jesse
3. 1,616 views
A G.P has 6 terms. If the 3rd and 4th terms are 28 and -56 respectively,find: (a) the first term (b) the sum of the G.P
1. 1 answer
2. asked by Olawale azeez
3. 1,589 views
Two Boats left the harbour at the same time. One travelled at 10km/h on a bearing of N47°E. The other travelled at 8km/h on a
1. 1 answer
2. asked by helpisneeded
3. 1,565 views
Dr. Black is standing 15 feet away from the street lamp. The lamp is making his shadow 8 feet long. The angle of elevation from
1. 4 answers
2. asked by Anonymous
3. 1,525 views
A car moving at 10m/s when it begins to be accelerated at 2.5m/s^2. (a)How long does the car take to reach a speed of 25m/s? (b)
1. 1 answer
2. asked by Ashley
3. 1,510 views
The nine Ring Wraiths want to fly from Barad-Dur to Rivendell. Rivendell is directly north of Barad-Dur. The Dark Tower reports
1. 1 answer
2. asked by Chip
3. 1,496 views
a farmer needs to buy fencing to go around his garden. The garden is a 20 by 15 rectangle . How much fencing will he need?
1. 1 answer
2. asked by mo
3. 1,435 views
explain how Western Europe's physical geography affects its climate, settlement patterns, culture, and economy.Can anyone give
1. 3 answers
2. asked by Katy
3. 1,396 views
solve for m2/3m - 5 = n
1. 2 answers
2. asked by Justin
3. 1,358 views
how long will it take to earn 525$ in interest if $3500 is invested at a 6% annual interest rate?
1. 2 answers
2. asked by meghan
3. 1,345 views
A new "D" battery has an emf of 1.5 V. When a wire of negligible resistance is connected between the terminals of the battery, a
1. 2 answers
2. asked by ali-1
3. 1,337 views
a.Which statement about lynchings in the South in the 1890s is true?1. Lynchings decreased compared to the Reconstruction era.
1. 2 answers
2. asked by bre
3. 1,333 views
A basketball is shot from an initial height of 2.4 m with an initial speed (v0 = 12 m/s) directed at an angle (35 degrees) above
1. 0 answers
2. asked by Kyo
3. 1,320 views
Suppose you're just beginning to study the information in your third shipment of material. When can you expect the next shipment
1. 3 answers
2. asked by Anonymous
3. 1,266 views
Hello!What could I do as a lead in activity with two 5th graders? We have a 45 minute lesson tomorrow and I want to break the
1. 1 answer
2. asked by tee
3. 1,245 views
What is "material pop culture"?I am supposed to write a question on my exam that explains how Canada has a culture through
1. 2 answers
2. asked by Dawn
3. 1,221 views
The speed of light in a certain material is 1.6 × 108 m/s. Express the speed of light in (a) feet per nanosecond (ft/ns) and
1. 1 answer
2. asked by sagara
3. 1,215 views
. Suppose you are a stock market analyst specializing in the stocks of theme parks, andyou are examining Disneyland’s stock.
1. 2 answers
2. asked by annie
3. 1,215 views
Given the reaction system;2 NO (g) + O2 (g) -> 2 NO2 (g) Write a brief explanation for each of the following statements in terms
1. 1 answer
2. asked by Michael
3. 1,200 views
a. Which statement about the Ku Klux Klan during Reconstruction is NOT true?1. Southern governments never created policies that
1. 4 answers
2. asked by bre
3. 1,196 views
A severe thunderstorm dumped 2.0 in of rain in 30 min on a town of area 50 km^2. What mass of water (in kg) fell on the town?
1. 0 answers
2. asked by sagara
3. 1,185 views
How does the United States deal with problems related to civil order control?
1. 0 answers
2. asked by mee
3. 1,175 views
have 150 milliliters of water and it freezes, how many grams of ice do you have?
1. 2 answers
2. asked by Kelsei-Natalie
3. 1,165 views
How does the author's attitude toward her name change over the course of "Newcomers in a Troubled Land"? Support your answer
1. 1 answer
2. asked by Fartun
3. 1,141 views
how can i make saturated CuSO4.5H2O saturated solution.Please tell temperature also?
1. 0 answers
2. asked by csrl
3. 1,103 views
If each tablet of a dietary supplement contains ~20 mg of iron how many tablets should we analyze to provide ~.50g of Fe2O3?
1. 1 answer
2. asked by Courtney
3. 1,098 views
What is the volume of 0.23 kg of pure water?
1. 1 answer
2. asked by Jerome
3. 1,091 views
write an equation of the line containing the point and perpendicular to the given line (4,-8); 2x+5y=4I am having a very hard
1. 3 answers
2. asked by Esther
3. 1,089 views
convert to degrees, minutes and seconds3pi/2 radians can u plz help
1. 3 answers
2. asked by Cas
3. 1,083 views
A 26 inch ribbon is cut into three pieces. One piece is 12 inches. The remaining two pieces must have one piece two inches
1. 3 answers
2. asked by Iris
3. 1,067 views
what is the author's purpose in "The Sniper?
1. 2 answers
2. asked by Michaela
3. 1,061 views
Consider a car whose position, s, is given by the table(s) 0 0.2 0.4 0.6 0.8 1 (ft) 0 0.3 1.4 3.8 6.5 9.6 Find the average
1. 1 answer
2. asked by Anonymous
3. 1,054 views
What is the relationship between an increase in light intensity and photosynthetic rate in leaves from a corn plant? How does
1. 1 answer
2. asked by Jessica
3. 1,051 views
A student presses a book between his hands, as the drawing indicates. The forces that he exerts on the front and back covers of
1. 1 answer
2. asked by brian
3. 1,051 views
An arrow is shot vertically upward and then 2.15 s later passes the top of a tree 37.0 m high. How much longer will the arrow
1. 0 answers
2. asked by Jamie
3. 1,037 views
A major leaguer hits a baseball so that it leaves the bat at a speed of 31.5 and at an angle of 36.1above the horizontal. You
1. 1 answer
2. asked by John
3. 1,024 views
what is the percent of change from $48.50 to $38.80
1. 4 answers
2. asked by Julie
3. 1,019 views
A severe thunderstorm dumped 2.0 in of rain in 30 min on a town of area 50 km^2. What mass of water (in kg) fell on the town?
1. 0 answers
2. asked by sagara
3. 999 views
Use factorization to simplify the given expression in part (a). Then find the indicated limit in part (b).(a) 3x3 + 9x2 + 9x + 3
1. 1 answer
2. asked by Arthur
3. 987 views
is fumaric acid polar or non-polar?
1. 1 answer
2. asked by Nina
3. 978 views
Two angles of a triangle measure 55 degrees and 47 degrees. What is the number of degrees in the measure of the supplement of
1. 2 answers
2. asked by Laur
3. 975 views
suppose you have two 1-L flasks one containing N2 at STP the other containg CH4 at STP how do these systems compare with respect
1. 0 answers
2. asked by meg
3. 974 views
Gold, which has a density of 19.32 g/cm^3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a
1. 2 answers
2. asked by sagara
3. 965 views
A rectangular piece of art is 4 meters wide and 6 meters long. It is surrounded by a uniform sidewalk. If the area of the
1. 1 answer
2. asked by Elizabeth
3. 960 views
1. Me gusta hablar por teléfono. _______a. Soy trabajador b. Soy callado c. Soy sociable d. Soy antipático C? 2. Jaun no es
1. 7 answers
2. asked by mysterychicken
3. 952 views
8.76g of aluminum sulphide is added to 0.0350L of 0.250mol/L lead(II)nitrate solution. calculate the maximum mass of
1. 1 answer
2. asked by paul
3. 938 views
Can You Check My Answers??Questions:: 1.¿Qué enciendes cuando tienes calor? 2.¿Qué apagas cuando tienes frío? 3.¿Qué usas
1. 2 answers
2. asked by NEEDS HELP!!
3. 901 views
Solve for xlog[1/3](x^(2) + x) - log[1/3] (x^(2) - x) = -1 Steps too please. so far I tried this and I got 3 = (x+1) / (x-1)
1. 1 answer
2. asked by Amy
3. 899 views
The speed of light in a certain material is 1.6 × 108 m/s. Express the speed of light in (a) feet per nanosecond (ft/ns) and
1. 0 answers
2. asked by Megan Fox
3. 879 views
8. "Soy generoso"a. ¿De dónde eres? b. ¿Cómo eres? c. ¿Qué tal? d. ¿Cómo te llamas? B? 10. ¿Te gusta____? a. tampoco b.
1. 3 answers
2. asked by mysterychicken
3. 854 views
Multiple-Concept Example 9 discusses the physics principles used in this problem. Three resistors, 2.2, 3.9, and 6.4 Ω, are
1. 0 answers
2. asked by ali-1
3. 848 views
Steve ponders a math problem that asks for the number of handshakes if six people at a meeting shake hands just once with each
1. 1 answer
2. asked by Rhonda
3. 842 views
The purity of gold is measured in karats. Twenty-four karat gold is pure gold and k karat gold is k/24 gold by mass. One piece
1. 0 answers
2. asked by Laur
3. 836 views
vas a la clase de ingles en la manana o en la tarde?
1. 1 answer
2. asked by Anonymous
3. 836 views
A brick is released with no initial speed from the roof of a building and strikes the ground in 1.50 {s}, encountering no
1. 1 answer
2. asked by andrea
3. 831 views
How many milliliters of 1.9 M HCl must betransfered from a reagent bottle to provide 24 g HCl for a reaction?
1. 1 answer
2. asked by kayla
3. 828 views
a pendulum bob with a mass of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero
1. 0 answers
2. asked by Erica L
3. 820 views
Two of the sides of a triangular lot have lengths of 90 feet and 80 feet. If the angle opposite the 80-foot side is 59°, what
1. 2 answers
2. asked by Dolores
3. 819 views
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of − 1.34?The only
1. 1 answer
2. asked by Michelle
3. 815 views
The eaves of a roof sloping at 23° overhand the walls, the edge of the roof being 75 cm from the top of the wall. The top of
1. 1 answer
2. asked by Rin
3. 811 views
A rectangle is 6m. wide and 11m long. How long is the diagonal of the rectangle?
1. 3 answers
2. asked by Destiny G.
3. 811 views
Complete combustion of 7.70 g of a hydrocarbon produced 23.7 g of CO2 and 10.9 of H2O. What is the empirical formula of the
1. 1 answer
2. asked by Student
3. 806 views
For this problem, assume the balls in the box are numbered 1 through 8, and that an experiment consists of randomly selecting 2
1. 1 answer
2. asked by Amanda
3. 797 views
A 1.90-kg object is attached to a spring and placed on frictionless, horizontal surface. A horizontal force of 14.0 N is
1. 1 answer
2. asked by Roo Kun
3. 791 views
of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero when the string makes an
1. 0 answers
2. asked by Erica L
3. 783 views
What would be the resulting molarity of a solution made by dissolving 21.9 grams of KCl in enough water to make an
1. 2 answers
2. asked by Brittany
3. 782 views
how do u find the slope of a line
1. 1 answer
2. asked by Courtney
3. 779 views
In 1626,Peter Minuit of the Dutch West India Company purchased Manhattan Island from Native Americans for $24. Assuming an
1. 0 answers
2. asked by Anonymous
3. 762 views
compare the organizational and procedural process needed to manage information in a small business and medium business and a
1. 1 answer
2. asked by LaTasha
3. 760 views
Given the reaction system;2 NO (g) + O2 (g) -> 2 NO2 (g) Write a brief explanation for each of the following statements in terms
1. 0 answers
2. asked by Michael
3. 746 views
What is the probability that a randomly selected three-digit number is divisible by 5? Express answer as a common fraction.
1. 1 answer
2. asked by Jay
3. 744 views
A bottle with a volume of 180 U. S. fluid gallons is filled at the rate of 1.6 g/min. (Water has a density of 1000 kg/m^3, and 1
1. 0 answers
2. asked by sagara
3. 742 views
PLEASE HELP ME! i have this homework due tomorrow and i only have 1 question left and am sooo desperate for an answer:The
1. 4 answers
2. asked by CJ
3. 737 views
Hi, all! I'm trying to right a small and simple paragraph in french. This is what I'm trying to say:Yesterday, I read an article
1. 7 answers
2. asked by Kat
3. 734 views
I can't seem to figure this out.A ship leaves at noon and travels due West at 20 knots. At 2:00 it changes to N54°W...Find the
1. 2 answers
2. asked by Dragon
3. 732 views
Calculate the change in energy when 665.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant
1. 1 answer
2. asked by Chemistry
3. 731 views
joe has a mass of 50 kg and sally has a mads of 30 kg. they sit in class with a separation of 0.5 meters. Find hhe gravitational
1. 2 answers
2. asked by david
3. 729 views
Will Zinc react with Zn(NO3)2, Cu(NO3)2,Pb(NO3)2, Mg(NO3)2, AgNO3, Al(NO3)3, or Fe(NO3)3
1. 1 answer
2. asked by Jenn
3. 725 views
Find all real number solutions to (cubed root 3x-8)-1=0If there is more than one solution, separate them with commas. If there
1. 4 answers
2. asked by Hannah
3. 721 views
Habia una vez hay un conejo pequeno. El no estaba contento. Queria mirar como les otros animales. Cuando él vio Mr. Bushy Tail,
1. 2 answers
2. asked by John
3. 714 views
The masses of newborn children are normally distributed with a mean of 3.4 kg and a standard deviation of 0.8 kg. A newborn is
1. 1 answer
2. asked by PLEASE HELP
3. 706 views
a ball is thrown at an original speed of 8.0 m/s at an angle of 35 degrees above the horizontal. What is the speed of the ball
1. 0 answers
2. asked by Anonymous
3. 691 views
Find the midpoint M of the line segment joining the points C = (-4,-5) and D = (2,-1).I got (-1,-3) can you check me? Thanks
1. 1 answer
2. asked by Jessica
3. 684 views

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