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Questions Asked on January 29, 2010

Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the radius of the platinum atom?
1. 3 answers
2. asked by Fred
3. 6,431 views
Approximately how many grams of NaNo3 will dissolve in 100g of water at 20 degrees Celsius?
1. 2 answers
2. asked by Lily
3. 5,503 views
The electric potential at x = 3.0 m is 120 V, and the electric potential at x = 5.0 m is 190 V. What is the electric field in
1. 2 answers
2. asked by Cal
3. 5,141 views
The ages of three brothers are consecutive even integers. Three times the age of the youngest brother exceeds the oldest
1. 4 answers
2. asked by Camile
3. 4,313 views
The reaction of aqueous sodium bromide and aqueous lead(II) nitrate is represented by the balanced net ionic equation.2Br-(aq) +
1. 1 answer
2. asked by Sarah
3. 4,021 views
Four point charges are positioned on the rim of a circle. The charge on each of the four is +0.5 µC, +1.5 µC, -1.0 µC, and
1. 1 answer
2. asked by Anonymous
3. 3,812 views
if you didn't know these cities were all cities of the United States, how could you tell from the temperature curves that they
1. 2 answers
2. asked by susan
3. 3,739 views
A battery is attached across several different capacitors connected in series. Which of the following statements are true?1 The
1. 3 answers
2. asked by Cal
3. 3,691 views
If three unequal capacitors, initially uncharged, are connected in series across a battery, which of the following statements is
1. 1 answer
2. asked by Cal
3. 3,335 views
a sock drawer has 2 blue pair, 4 white pairs, 4 black pair. what is the probability you will pick out a white pair or blue pair?
1. 1 answer
2. asked by makeeda
3. 2,983 views
a sock drawer has 2 blue pair,4 white pair,4 black pair? what is the probability you will pick out a black pair ?i think is 2/10
1. 1 answer
2. asked by makeeda
3. 2,897 views
The reaction of aqueous barium hydroxide and aqueous sodium sulfate is represented by the balanced net ionic equation.Ba2+(aq) +
1. 1 answer
2. asked by Harry
3. 2,688 views
How many liters of oxygen gas at 153 degrees celsius and 0.820 atm can be produced by the decomposition of 22.4 g of solid
1. 1 answer
2. asked by Fred
3. 2,608 views
what is the value of the y-coordinate of the solution to the system of equations x-2y=1 and x+4y=7
1. 1 answer
2. asked by shifa
3. 2,586 views
When a boy pulls his sled with a rope, the rope makes an angle of 70 with the horizontal. If a pull of 16 pounds on the rope is
1. 1 answer
2. asked by chelsey
3. 2,508 views
To win $1 million, you must draw two cards whose sum is nine from a stack of cards numbered 1 through 10. After the first draw,
1. 2 answers
2. asked by Ana
3. 2,495 views
The local ice cream stand offers three flavors of soft-serve ice cream: vanilla, chocolate, and strawberry: two types of cone:
1. 1 answer
2. asked by Camile
3. 2,243 views
A helium nucleus (charge = 2e, mass = 6.63 10-27 kg) traveling at a speed of 6.20 105 m/s enters an electric field, traveling
1. 2 answers
2. asked by Cal
3. 2,040 views
if you wished to warm 100 kg of water by 15 degrees celsius for your bath, how much heat would be required? (give your answer in
1. 2 answers
2. asked by maria
3. 2,019 views
A playground is on the flat roof of a city school, 5.2 m above the street below (see figure). The vertical wall of the building
1. 2 answers
2. asked by Katie
3. 1,809 views
The path of a rocket fired during a fireworks display is given by the equation s(t)=64t2,( t do the 2nd power) where t is the
1. 3 answers
2. asked by Caroline
3. 1,754 views
What is a quadrilateral that has both reflectional and rotational symmetry?
1. 1 answer
2. asked by Rmz
3. 1,687 views
Joe's larger tank is completely filled with water. He takes water from it to completely fill the small tank. Determine how many
1. 2 answers
2. asked by Buba
3. 1,602 views
The phosphoric acid in a 100.00 mL sample of a cola drink was titrated with 0.1476 M NaOH. The first equivalence point was
1. 1 answer
2. asked by Jenna
3. 1,601 views
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0. If Santa slides 5.00
1. 1 answer
2. asked by k-Paul
3. 1,564 views
Carlos and maria drove a total of 258 miles in 5 hours. Carlos drove the first part of the trip and averaged 53 miles per hr
1. 4 answers
2. asked by rodney
3. 1,482 views
Before 1937, all naturally occuring elements had been discovered, but no one had found any trace of element 43. Chemists were
1. 1 answer
2. asked by LOVELY23
3. 1,424 views
Monosodium glutamate (MSG), a food-flavor enhancer, has been blamed for “Chinese Restaurant Syndrome,” the symptoms of which
1. 2 answers
2. asked by <3
3. 1,423 views
need help with this problem can someone help me?"At the end of the week one, a stock had increased in value from $5.75 a share
1. 1 answer
2. asked by Jessica
3. 1,422 views
Robin exerts a force of 100 N in pulling back his bow by 0.5 m. He fires the arrow (mass=0.2 kg) vertically upwards.a-How much
1. 2 answers
2. asked by Mota
3. 1,415 views
Please go over my answers and tell me what I got wrong... Telling me the correct answer would also be nice please hurry I only
1. 5 answers
2. asked by Ario
3. 1,382 views
3. Which of the follwoing statements about sexual and asexual reproduction is FALSE?a. genetic diversity occurs in sexual
1. 2 answers
2. asked by mysterychicken
3. 1,367 views
The question is:Compute the recent two years’ cash flow on total assets ratios for this company. This is the info given:
1. 1 answer
2. asked by Nancy
3. 1,362 views
wat is an equation of the line that passes through the point (4,-6) and has a slope of -3??? some one plzzz help me those are
1. 1 answer
2. asked by nahla taher
3. 1,359 views
CH3OH(g) CO(g) + 2 H2(g) H = +90.7 kJ .Calculate the amount of heat transferred when 35.0 g of CH3OH(g) are decomposed by this
1. 1 answer
2. asked by Rachel
3. 1,327 views
If a precipitation reaction occurs when a solution of one species is added to a solution of the other, enter the formula,
1. 1 answer
2. asked by Missy
3. 1,290 views
Four identical metallic objects carry the following charges: + 1.6, + 6.2, − 4.8, and . The objects are brought simultaneously
1. 1 answer
2. asked by Sam
3. 1,260 views
Draw an array for 12x7 (You don;t have to draw all the boxes inside, just the shape and the dimensions.) How would you break up
1. 2 answers
2. asked by Kenneth
3. 1,250 views
Using the balanced reaction, enter the formula, charge(if any), and state of the species (exclude H2O) in solution if
1. 1 answer
2. asked by Kevin
3. 1,213 views
A proton is released at the origin in a constant electric field of 850 N/C acting in the positive x-direction. Find the change
1. 2 answers
2. asked by Cal
3. 1,198 views
Express the product of 3¡Ì30(2¡Ì5-7) in simplest radical form.
1. 1 answer
2. asked by Shao
3. 1,173 views
Galileo drops a stone from the leaning tower of Pisa, which is 45 meters high. At what speed does the stone hit the ground?
1. 1 answer
2. asked by Mota
3. 1,126 views
Leon has an annual income of $18,500. He has 22% of his grosssalary withheld for deductions. What is the net amount of each
1. 1 answer
2. asked by Gabriel
3. 1,119 views
which relationship can best described as casual?(1)height and intelligence (2)shoe size and running speed (3)number of correct
1. 2 answers
2. asked by xmc
3. 1,112 views
When an electroscope is charged, its two leaves repel each other and remain at an angle. What balances the electric force of
1. 1 answer
2. asked by Hailey
3. 1,111 views
Draw an array for 12x7 (You don;t have to draw all the boxes inside, just the shape and the dimensions.) How would you break up
1. 0 answers
2. asked by Kenneth
3. 1,102 views
A parallel-plate capacitor made of circular plates of radius 55 cm separated by 0.25 cm is charged to a potential difference of
1. 7 answers
2. asked by paul
3. 1,076 views
what are the products, Imports & Exports in Egypt
1. 5 answers
2. asked by ts
3. 1,051 views
mix 120ml of 0.320M silver nitrate with 40ml of 0.320M potasium chromate. What mass of silver chromate is produced?this is what
1. 2 answers
2. asked by Krissy
3. 1,048 views
Do these two sentences contain misplace and dangling modifiers are there correct.1.Louise projected the photographs on a large
1. 3 answers
2. asked by Felicia
3. 1,017 views
A man lifts a 1.0 kg stone vertically with his hand at a constant upward acceleration of 1.8m/2^2. what is the magnitude of the
1. 1 answer
2. asked by James
3. 1,001 views
Nikki borrowed $500 at 9% interest for 12 months under a monthlyinstallment plan. She must pay $8.7453 per $100 each month for
1. 1 answer
2. asked by AR
3. 999 views
A train load of cars and trucks is en route to an automobile dealer for whom you work. Before they arrive, the dealer receives
1. 1 answer
2. asked by cuca
3. 988 views
A playground is on the flat roof of a city school, 5.2 m above the street below (see figure). The vertical wall of the building
1. 2 answers
2. asked by Katie
3. 979 views
The counties of Michigan clearly need theability to raise additional sources of revenue, not only to meet the demands of growth
1. 2 answers
2. asked by Anonymous
3. 977 views
After a parallel-plate capacitor is charged by a battery, it is disconnected from the battery and its plate separation is
1. 1 answer
2. asked by Cal
3. 964 views
You pour a cup of coffee. when its poured, it is 130 F above room temperature, so we will say that difference D=130 F. 3 minutes
1. 1 answer
2. asked by Dasn
3. 957 views
The Lees, a family of two adults and two dependent children under age 16, had a gross annual income of $68,000 for 2007.
1. 0 answers
2. asked by Jeff
3. 934 views
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0. If Santa slides 5.00m
1. 1 answer
2. asked by k-Paul
3. 916 views
whats the five w's of The New Jersey Plan
1. 1 answer
2. asked by tiffany
3. 896 views
To the nearest minute, what is the approximate size of the smallest angle of a triangle whose sides are 4,5, and 8?How do I find
1. 1 answer
2. asked by Judy
3. 890 views
how do i name the ionic compound bythis formula (NH4)2Cr2O7
1. 1 answer
2. asked by calli
3. 885 views
A glacier moves about 12 inches every 36 hours. About how far does the glacier move in 1 week?
1. 3 answers
2. asked by Kyle
3. 877 views
what is the natural logarithm of (4x-1)=36
1. 1 answer
2. asked by sherry
3. 867 views
Match each polar equation below to the best description. Each answer should be C,F,I,L,M,O,or T.DESCRIPTIONS C. Cardioid, F.
1. 0 answers
2. asked by Salman
3. 832 views
The average of a set of five different positive integers is 360. The two smallest integers in the set are 99 and 102. What is
1. 1 answer
2. asked by Mark
3. 831 views
Allan makes two payments a year of $337 each for real estate taxes.He makes six payments a year of $216 for auto insurance. How
1. 1 answer
2. asked by sabina
3. 823 views
A crane lifts 1 tonne of concrete through a height of 25 m. How much work does it do? (1 kg has a weight of 9.81 N.)
1. 2 answers
2. asked by Mota
3. 799 views
3. Which of the follwoing statements about sexual and asexual reproduction is FALSE?a. genetic diversity occurs in sexual
1. 0 answers
2. asked by mysterychicken
3. 781 views
(I have two questions)1. Solve for x without a calculator: log3(x^2)=2log3(4)-4log3(5) This is what I have so far:
1. 1 answer
2. asked by Moe
3. 761 views
Hi I need some assistance on this problemfind the exact value do not use a calculator cot[(-5pi)/12] Here is my attempt RT =
1. 2 answers
2. asked by Kate
3. 756 views
I'm having a really hard time with this physics problem...not really sure where to begin or which equation to use....please
1. 2 answers
2. asked by Nikki
3. 751 views
please check if I did this right ...calculate the mass of white solid CaCO3 that forms when 98ml of a 0.1M Ca(NO3)2 solution is
1. 4 answers
2. asked by Krissy
3. 747 views
how many grams of sodium are used to prepare 50 boxes of crackers?hint:serving size= 0.50 ounces (6 crackers)a box has a net
1. 1 answer
2. asked by Anonymous
3. 739 views
A force of 100N pulls a box of weight 200N along a smooth horizontal surface makes 45(degree) to the floor .Calculate the work
1. 1 answer
2. asked by Mota
3. 737 views
Solve for x:3/5(x+2)= x - 4
1. 1 answer
2. asked by syed
3. 732 views
Hey guys - this problem is pretty tough for me...any help? Don't know what to do....In seawater, a life preserver with a volume
1. 1 answer
2. asked by Randi
3. 726 views
9x+5greater than or equal to -40 or 7x+3greater than or equal to -11solve and graph I got the answer of x greater than or equal
1. 0 answers
2. asked by Jen
3. 725 views
when rolling cube, what is the probability of rolling a number greater than 6?i think it is 1/7 is im correct
1. 1 answer
2. asked by makeeda
3. 720 views
A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the
1. 1 answer
2. asked by Mark
3. 719 views
4. Translate the problem into a pair of linear equations in two vaiables. Solve the equations using either elimination or
1. 1 answer
2. asked by Ashley
3. 713 views
The spectrum of light from the galaxy M100 has a prominent dark line at a wavelength of 592.2 nm. The same spectral line
1. 1 answer
2. asked by Mota
3. 710 views
Terri, Corey and Chris together made 20 baskets in a basketball game. Terry made 5 more than Corey. Chris made 3 times more
1. 3 answers
2. asked by Susan
3. 706 views
using scientific notation4x10^9/2x10^-7
1. 1 answer
2. asked by Tina
3. 706 views
If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.4m/s^2, how long does it take
1. 1 answer
2. asked by James
3. 691 views
If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.4m/s^2, how long does it take
1. 1 answer
2. asked by JP
3. 691 views
Can somebody help me with commans?where do they commas go in these sentences? Or do they need them? 1) I give you homework
1. 4 answers
2. asked by Jen
3. 676 views
How can u predict if a bond will be ionic, covalent or polar covalent?i know that its the difference between
1. 1 answer
2. asked by Sam
3. 676 views
mix 120ml of 0.320M silver nitrate with 40ml of 0.320M potasium chromate. What mass of silver chromate is produced?I am stuck
1. 4 answers
2. asked by Krissy
3. 674 views
A helicopter is flying horizontally at 7.5 m/s and an altitude of 17 m when a package of emergency medical supplies is ejected
1. 1 answer
2. asked by Sal
3. 672 views
A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the
1. 1 answer
2. asked by Mark
3. 670 views
Write a 200- to 300-word essay arguing for or against unrestricted international trade. Some possible platforms on which to
1. 3 answers
2. asked by blabla
3. 669 views
A particle experiences a constant acceleration that is north at 100m/s^2. At t=0, its velocity vector is 70m/s east. At what
1. 2 answers
2. asked by James
3. 666 views
Two small arrays have neen conbined to make a big arraay. What are the dimensions and product of the big array? Fill in the
1. 0 answers
2. asked by Kenneth
3. 664 views
A 4.14 m solution of the solute methylene chloride dissolved in the solvent ethanol is available. Calculate the mass ( kg ) of
1. 1 answer
2. asked by eng
3. 651 views
A motorist travels 108km in 2hrs 15mins. if she travels at a steady speed, find how far she goes in 1 hour. PLEASE SHOW ALL
1. 1 answer
2. asked by Ashley-Ann
3. 651 views
A student finds that a stretched rubber band stores 3.5 J of energy. She uses it to propel an object of mass 0.025 kg vertically
1. 1 answer
2. asked by Mota
3. 647 views
Joe's larger tank is completely filled with water. He takes water from it to completely fill the small tank. Determine how many
1. 0 answers
2. asked by Buba
3. 643 views
If 6.38 g of a polyethylene glycol is dissolved in 7550 ml of water at 300 oK, the solution has an osmotic pressure of 0.171
1. 2 answers
2. asked by eng
3. 630 views
A 4.58 m solution of the solute methylene chloride dissolved in the solvent acetone is available. Calculate the mass ( kg ) of
1. 1 answer
2. asked by bubble
3. 629 views

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