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2012
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Questions Asked on March 28, 2012

What do you call it when somebody spends 20 years in the 24th row of a theater
1. 67 answers
2. asked by Chuck
3. 26,278 views
For the systemH2(g) + CO2(g) <---> H2O(g) + CO(g) at equilibrium, the addition of H2(g) would cause (according to
1. 1 answer
2. asked by please help
3. 6,419 views
a) Calculate the change in pH when 4.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in
1. 4 answers
2. asked by Jematormal91
3. 6,177 views
ammonium nitrate decomposes to N2O and water at temperatures between 250 C and 300 C. Write a balanced chemical reaction
1. 3 answers
2. asked by Tori
3. 6,135 views
why did the gyro go into the bakery?
1. 9 answers
2. asked by marquis
3. 4,300 views
Gamma-ray bursters are objects in the universe that emit pulses of gamma rays withhigh energies. The frequency of the most
1. 3 answers
2. asked by Angel
3. 3,941 views
If you roll a fair number cube 30 times, how many times would you expect to roll a number less than 3
1. 7 answers
2. asked by 6th grader
3. 3,903 views
The formaldehyde content of a pesticide preparation was determined by weighing 0.3124g of the liquid sample into a flask
1. 2 answers
2. asked by Ellen
3. 3,475 views
A 0.22-caliber handgun fires a 27-g bullet at a velocity of 765 m/s. Calculate the de Broglie wavelength of the bullet. Is the
1. 2 answers
2. asked by danielle
3. 3,426 views
For a system where:NH2OH + CH3NH3+ --> CH3NH2 + NH3OH+ 95% 95% 5% 5% State of equilibrium in the system is described by the
1. 2 answers
2. asked by Meenaakshi
3. 3,357 views
each interior angle of a regular polygon is 18 degree more than eight times an exterior angle. the number os sides of polygon
1. 3 answers
2. asked by polygon
3. 2,895 views
Take the following out of fraction form tan^2x/cscx+1
1. 2 answers
2. asked by Cathy
3. 2,886 views
1-Becky made 4 quarts of chicken noodle soup in a big pot, then served -cup bowls of soup to 6 people. How much soup is left in
1. 3 answers
2. asked by dw
3. 2,717 views
A 25.00mL sample of a household cleaning solution was diluted to 250.0mL in a volumetric flask. A 50.00mL aliquot of this
1. 3 answers
2. asked by Ellen
3. 2,703 views
An excited hydrogen atom emits light with a frequency of 1.141x10^14 Hz to reach the energy level for which n=4. In what
1. 1 answer
2. asked by danielle
3. 2,694 views
How much energy is needed to convert 90g of water (ice) at -85 degrees C to water (liquid) at 48 degree C?
1. 1 answer
2. asked by Jane
3. 2,616 views
Determine the principal P that must be invested at rater = 3 1 2 %, compounded monthly, so that $700,000 will be available for
1. 1 answer
2. asked by tracey
3. 2,558 views
A block with a mass of 0.5kg is pushed against a horizontal spring of negligible mass and spring constant 450 N/m until the
1. 2 answers
2. asked by natasha
3. 2,538 views
Calculate the enthalpy change for converting 10.0g of ice at -25 degrees Celsius to water at 80 degrees Celsius. The specific
1. 1 answer
2. asked by Brittany
3. 2,434 views
1.Tube # 3: (a) It started out as purple, and turned into green. (b) No precipitate was noticably formed. Tube #4: (a) This tube
1. 2 answers
2. asked by Miranda
3. 2,426 views
A spiral spring stretches 4 cm when a mass of 0.5 kg is suspended from it. what is the spring constant?
1. 1 answer
2. asked by jamal
3. 2,391 views
In 24 hours, one set of twins drank 16 bottles of formula. Each bottle holds 4 fl oz. How many cups of formula did the twins
1. 4 answers
2. asked by dw
3. 2,376 views
All living organisms share all of the following features in common exceptA. carry out metabolism B. transfer energy with ATP C.
1. 2 answers
2. asked by ariyonia
3. 2,348 views
A machine is used to fill soda bottles in a factory. The bottles are labeled as containing 2.0 liters, but extra room at the top
1. 2 answers
2. asked by Kayla
3. 2,271 views
how much concentrated 12 M hydrochloric acid is needed to prepare 100 mL of a 2.0 M solution?
1. 3 answers
2. asked by dellanie
3. 2,188 views
Chris cuts half a rectangular lawn, 40m by 30m, by mowing strips of equal width around the perimeter. Jerri cuts the small
1. 1 answer
2. asked by 11th grade
3. 2,117 views
Which of the following is true for popcorn kernels and the water molecules inside them during popping?a. The temperature of the
1. 1 answer
2. asked by ihatephysicsgah
3. 2,055 views
find the number of possible 5 card hands that contain the cards specifieda: 5 face cards(either king,queen, or jacks) b: 4 aces
1. 2 answers
2. asked by bkue
3. 2,028 views
Why do you suppose Streptomyces griseus produces an enzyme that inactivates streptomycin? Why is this enzyme produced early in
1. 2 answers
2. asked by BIO
3. 1,999 views
The smith family is going to buy a home for 150,000 they will need a 10% down payment how much will they need
1. 2 answers
2. asked by tia
3. 1,885 views
A block of wood of mass 6.0 kg slides along a skating rink at 12.5 m/s^2 [w] . The block slides onto a rough section of ice that
1. 1 answer
2. asked by Isabella
3. 1,815 views
Two toy locomotives approach each other along the same line, and upon collision both stop dead still. One locomotive has three
1. 1 answer
2. asked by Danielle
3. 1,802 views
Mg + 2HCl -> MgCl2 +H2 delta H = ?MgO + 2HCl (aq) -> MgCl2+ H2O delta H = ? H2+ 1/2O2 -> H2O delta H = -285.8 kJ Using Hess' Law
1. 1 answer
2. asked by Hunter
3. 1,782 views
a 4 kilogram ball moving at 8 meters per second to the right collides with a 1 kilogram ball at rest. After the collision, the 4
1. 1 answer
2. asked by Hellen
3. 1,767 views
A ﬁgure skater begins spinning counterclockwise at an angular speed of 4.6π rad/s. During a 4.6s interval, she slowly pulls
1. 1 answer
2. asked by Ethan
3. 1,706 views
the base of a solid right prism is a triangle whose sides are 9cm, 12cm and 15cm. The height of the prism is 5cm. Then the total
1. 1 answer
2. asked by retangular prism
3. 1,642 views
A diver performing a double somersault spins at an angular speed of 4.5 π rad/s precisely 0.70s after leaving the platform.Assu
1. 1 answer
2. asked by Ethan
3. 1,570 views
the scale factor of two similar polygons as 4:7. the perimeter of the smaller polygon is 320 centimeter what is the perimeter of
1. 1 answer
2. asked by joselynn
3. 1,466 views
A girl sitting on a merry-go-round movescounterclockwise through an arc length of 3.36m. If the girl’s angular displacement is
1. 1 answer
2. asked by Ethan
3. 1,418 views
On a perfect fall day, you are hovering at low altitude in a hot-air balloon, accelerated neither upward nor downward. The total
1. 2 answers
2. asked by Kristie
3. 1,387 views
what two methods can a less developed country use to finance its economic development?A.internal financing & debt rescheduling
1. 4 answers
2. asked by MM
3. 1,340 views
A 1000kg car accelerates from rest to 30m/s over a distance of 20m.a) ignoring friction and air resistance, what is the power
1. 1 answer
2. asked by natasha
3. 1,334 views
What would happen to the denisty of a plastic sample if an excessive number of air bubbles were allowed to accumulate on the
1. 2 answers
2. asked by Allison
3. 1,330 views
what number multiplied by the numerator and added to the denominator of the fraction 2/5 makes the resulting fraction 8/9?
1. 1 answer
2. asked by Jennifer
3. 1,269 views
Lindsay will lay a certain number of 18-inch square tiles in a line to form a walkway. Which of the following is NOT a possible
1. 3 answers
2. asked by dw
3. 1,245 views
if a person is pushing a cart with a force of 40 newtons and it accelerates at 0.5 m/s2 what is the mass of the cart
1. 2 answers
2. asked by Mary
3. 1,226 views
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is
1. 0 answers
2. asked by carly
3. 1,210 views
You place 1.234 g of solid Ca(OH)2 in 1.00 L of pure water at 25°C and it partially dissolves. The pH of the solution is 12.40.
1. 1 answer
2. asked by Kelly
3. 1,193 views
scale drawing of a rectangular room has a length of 18 inches and a width of 12 inches. if the scale for the drawing is 1 inch
1. 1 answer
2. asked by dontrarius
3. 1,190 views
An isosceles triangle is inscribed in a circle. The shortest side is the base which is 16 cm long. If the radius of the circle
1. 1 answer
2. asked by Joey
3. 1,181 views
In the square, if part A is 1/4 of the square and part C is 1/10 of the square, what percent of the square is part B?
1. 8 answers
2. asked by JK
3. 1,169 views
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is
1. 0 answers
2. asked by cassidy
3. 1,166 views
The volumes of two similar solids are 1331 cubic meters and 27 cubic meters. The surface area of the larger one is 242 square
1. 1 answer
2. asked by Piggy
3. 1,155 views
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.5 cm thick. The bullet strikes the board with
1. 1 answer
2. asked by Alex
3. 1,143 views
A mixture contains 5.0 g of He, 1.0 g of Ar, and 3.5 g of Ne. Calculate the volume of this mixture at STP. Calculate the partial
1. 1 answer
2. asked by Jenny
3. 1,137 views
When a ball is thrown upward, its height, h, in metres, is given by h=1.5 +19.6t -4.9t², where t is the number of seconds after
1. 1 answer
2. asked by lost
3. 1,135 views
Angie drew a number line and labeled 0 and 1. To show 5/12, how many parts should she divide the distance from 0 to 1?
1. 2 answers
2. asked by destiny
3. 1,135 views
Louise is creating a 1-foot long comic strip. If she has marked 0.5 on her paper, what should she do to find 1 foot?Subtract 0.5
1. 4 answers
2. asked by destiny
3. 1,133 views
A mountain-climber friend with a mass of 82 kg ponders the idea of attaching a helium-filled balloon to himself to effectively
1. 0 answers
2. asked by Kristie
3. 1,132 views
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is
1. 0 answers
2. asked by kari
3. 1,110 views
A 350-Hz tuning fork is held above a closed pipe. Find the spacings between the resonances when the air temperature is 20°C.
1. 1 answer
2. asked by lisa
3. 1,089 views
A small circular object with mass m and radius r has a moment of inertia given byI = cmr2. The object rolls without slipping
1. 4 answers
2. asked by Adam
3. 1,075 views
The Regional Farm Bureau (RFB) is preparing a brochure that offers advice about constructing pens for small farm animals, and
1. 1 answer
2. asked by Michael
3. 1,064 views
A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is
1. 0 answers
2. asked by nick
3. 1,051 views
Jamie sketched the following picture of the landscape he saw while he was on vacation. It included cacti & barren rock. (picture
1. 1 answer
2. asked by Xariz
3. 1,045 views
If the economy currently has a frictional unemployment rate of 2 percent, structural unemployment of 2 percent, seasonal
1. 1 answer
2. asked by Anonymous
3. 1,027 views
the radius of the incircle of a triangle is 2cm. if the area of the triangle is 6 sq.cm, then its perimeter is.
1. 1 answer
2. asked by circle
3. 1,025 views
X2+11x=-24
1. 3 answers
2. asked by lilly
3. 995 views
A spherical water tank has a diameter of 10 feet. How much water does it hold when half full ? ( use 3.14 )
1. 2 answers
2. asked by Elizabeth
3. 990 views
When 50.0 mL of a 0.010 M CuNO3 solution is mixed with 150.0 mL of a 0.010 M NaCl solution, a precipitate forms (Ksp = 1.9 x
1. 0 answers
2. asked by alex
3. 988 views
The sum of two numbers is 105. One number is 6 times the other. Find the numbers the smaller value and the larger value.
1. 3 answers
2. asked by binta
3. 986 views
this be emily carr story d'sonoquaD’Sonoqua I was sketching in a remote Indian village when I first saw her. The village was
1. 2 answers
2. asked by Mohammad
3. 980 views
A 4.6 kg block starts at rest and slides a distance d down a frictionless 31.0° incline, where it runs into a spring. The block
1. 2 answers
2. asked by please help:)
3. 975 views
Complete in Metric Conversions:24 kilometers to ____meters 172 flied ounces to ___gallons 1 bushel corn (56Lbs) to ____
1. 0 answers
2. asked by Amy
3. 967 views
WRITE AN ARTICLE FOR A SCHOOL MAGAZINE IN WHICH YOU HIGHLIGHT THE ADVANTAGES AND DISADVANTAGES OF THE PROPOSED SCHEME [HAVING A
1. 2 answers
2. asked by Zaki
3. 965 views
For the gaseous equilibrium represented below, it is observed that greater amounts of PCl3 and Cl2 are produced as the
1. 0 answers
2. asked by alex
3. 961 views
(COMPOUND INTEREST)Effie is planning to set up a trust fund for her new grand daughter. In 18 years time she wants the
1. 1 answer
2. asked by CrissyXD
3. 959 views
Which shows the gymnastic scores in order from least to greatest?9.72, 9.8, 9.78, 9.87 9.78, 9.72. 9.87, 9.8 9.78, 9.8, 9.72,
1. 4 answers
2. asked by destiny
3. 955 views
A 58kg skier is coasting down 25degrees slope at an initial velocity of 3,6m per second.A kinetic frictional force of 70N
1. 1 answer
2. asked by Somila mdunyelwa
3. 953 views
If you drop a stone into a well that is d = 122.0 m deep, as illustrated in the figure below, how soon after you drop the stone
1. 1 answer
2. asked by caroline
3. 946 views
Your brain has instructed your muscles to move so an oncoming vehicle. What division of your nervous system carried the
1. 1 answer
2. asked by Anonymous
3. 945 views
the equilibrium contant kc=49 at 230^0C, for the reaction PCl3 + Cl2= PCL5. If 0.50mol of each of phosphorus trichloride and
1. 0 answers
2. asked by jose souljoe
3. 942 views
A block of wood of mass 6.0 kg slides along a skating rink at 12.5 m/s^2 [w] . The block slides onto a rough section of ice that
1. 1 answer
2. asked by Isabella
3. 940 views
Aside from humanitarian concerns, which of the following is one reason on nation is motivated to provivde foreign aid to a less
1. 3 answers
2. asked by MM
3. 922 views
1. The result of computations done in a -----statement are not stored in the computer's memory.A.LET; B. PRINT; C. compute; D.
1. 6 answers
2. asked by patricia
3. 919 views
Complete in Metric Conversions:A 12 food wide fertilizer spreader drops 45 pounds of fertilizer while traveling 625 feet. What
1. 0 answers
2. asked by Amy
3. 917 views
Find the other endpoint of the line segment with the given endpoint and mid point.1. Endpoint:(-1, 9), midpoint: (-9, -10) 2.
1. 1 answer
2. asked by drew
3. 916 views
8. The modernist movement challenged American writers toa. adopt Marxism as a philosophical basis for their work b. set their
1. 1 answer
2. asked by mysterychicken
3. 884 views
Calculate the ratio of NaF to HF required to create a buffer with a pH of 4.00.
1. 1 answer
2. asked by Cooper
3. 882 views
A window is shaped like a rectangle whose perimeter is 400 inches the length is 7 times as long as the width find the length and
1. 1 answer
2. asked by Ms. L
3. 877 views
a 250.0ml buffer solution is 0.250M in ascetic acid and 0.250M in sodium acetate.B). What is pH after addition of 0.0050mol of
1. 1 answer
2. asked by ALISON
3. 869 views
Hi, so I did a lab on acids, bases, salts and buffer solutions. After measuring the pH for a .010 M HCl solution I got a pH of
1. 2 answers
2. asked by maura
3. 866 views
Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by
1. 0 answers
2. asked by Kristie
3. 862 views
Two tracking stations are on the equator 134 miles apart. A weather balloon is located on a bearing of N 38°E from the western
1. 1 answer
2. asked by Anonymous
3. 850 views
a market researcher predicted that the profit function for the first year of a new business would be p(x)= -0.3x^2 + 3x -15,
1. 3 answers
2. asked by mrsweetlaeh
3. 842 views
The fourth term of an arithemetic progression is 13 and the tenth term is 31 find it first tern and it common difference
1. 1 answer
2. asked by Wale
3. 840 views
What is the smallest positive value for x where y = sin 2x reaches its maximum?
1. 1 answer
2. asked by Sangita
3. 837 views
At 1 atm, how much energy is required to heat 39.0 g of H2O(s) at –22.0 °C to H2O(g) at 163.0 °C?
1. 1 answer
2. asked by Dan
3. 833 views
how does the constitution compare with the articles of confederation? please help!!
1. 1 answer
2. asked by taylor
3. 832 views
Suppose that 600 meters of fencing are used to enclose a corral in theshape of a rectangle on three sides, and then a semicircle
1. 0 answers
2. asked by Alex
3. 828 views

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