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Questions Asked on November 18, 2010

A bowl contains 3 red balls, 2 blue balls and 5 white balls. A ball is selected and the color noted. Then it is replaced. A
1. 7 answers
2. asked by Maryan
3. 8,547 views
A plane flying horizontally at an altitude of 3 mi and a speed of 480 mi/h passes directly over a radar station. Find the rate
1. 2 answers
2. asked by anna
3. 8,387 views
suppose you are an astronaut making a space walk outside your space station when your jet pack runs out of fuel. How can you use
1. 10 answers
2. asked by Katsa
3. 6,633 views
23) The equilibrium constant for the gas phase reaction2NH3 (g) <-> N2 (g) + 3H2 (g) is Keq = 230 at 300 °C. At equilibrium,
1. 2 answers
2. asked by jess
3. 6,401 views
You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your
1. 3 answers
2. asked by alejandrob
3. 5,556 views
Household hydrogen peroxide is an aqueous solution containing 3.0% hydrogen peroxide by mass. What is the molarity of this
1. 2 answers
2. asked by Anonymous
3. 3,766 views
A flask containing a mixture of CH4(g) and NH3(g)is cooled. At -33.3c a liquid begins to form in the flask. What is the liquid?
1. 2 answers
2. asked by Evette C.
3. 3,666 views
The value of Keq for the following reaction is 0.25:SO2 (g) + NO2 (g)<~> SO3 (g) + NO (g) The value of Keq at the same
1. 2 answers
2. asked by richy
3. 3,608 views
To dilute a solution from 0.600 M to 0.100 M, the final volume must beA. 1/6 the original volume. B. 0.7 L. C. More information
1. 3 answers
2. asked by Jake
3. 3,596 views
MaVa = MbVb can be used for the reaction between HCl and NaOH. Can it be used for the reaction between NaOH and H2C2O4 (oxalic
1. 2 answers
2. asked by Stacy
3. 3,574 views
A weather ballon is designed to expand to a maximum radius of 20 m at its working altitude, where the air pressure is 0.030 atm
1. 3 answers
2. asked by Y0gi
3. 3,334 views
A Ferris wheel with radius 9.8 m rotates at a constant rate, completing one revolution every 36.6 s. Suppose the Ferris wheel
1. 2 answers
2. asked by Briana
3. 3,149 views
A 905 kg test car travels around a circular track with a circumference of 3.25 km. If the magnitude of the force that maintains
1. 3 answers
2. asked by Devon
3. 2,790 views
A 52 g mountain climber, start from rest, climbs a vertical distance of 730 m. At top, she is again at rest. In the process, her
1. 2 answers
2. asked by david
3. 2,775 views
how do i solve the following problem?Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO2 → 2NO + O2
1. 2 answers
2. asked by jess
3. 2,697 views
a child is sliding on a sled at 1.5m/s to the right. You stop the sled by pushing on it for 0.50 s in a direction opposite to
1. 4 answers
2. asked by Nina
3. 2,674 views
Calculate the temperature change in the water upon complete melting of the ice. Hint: Determine how much heat is absorbed by the
1. 3 answers
2. asked by jose
3. 2,628 views
A worker pushes a wheelbarrow with a force of 40 N over a level distance of 6.0 m. If a frictional force of 24 N acts on the
1. 1 answer
2. asked by Anonymous
3. 2,554 views
If a circle has a diameter of 7inches, what is the circumference rounded to the nearest whole number?Use pi=3.14
1. 1 answer
2. asked by fay
3. 2,342 views
Explain why the Noble Gases are unreactive
1. 2 answers
2. asked by Hailey
3. 2,254 views
What type of literary or dramatic works did William Shakespeare write?burlesque pantomime satire Restoration comedy heroic drama
1. 2 answers
2. asked by danny
3. 2,244 views
You are using glass tiles to make a picture frame for a square photograph with sides 10 inches long. You want the frame to form
1. 1 answer
2. asked by Amanda
3. 2,156 views
1) A conductivity apparatus is not that useful in separating acids from bases because both solutions conduct electricity. True
1. 4 answers
2. asked by Anonymous
3. 1,913 views
A possible mechanism for the overall reactionBr2 (g) + 2NO (g) -> 2NOBr (g) is NO (g) +Br2 (g) (equilibrium arrows: on top it
1. 1 answer
2. asked by ben
3. 1,897 views
A 25 kg chair initially at rest on a horizontal floor requires 393 N horizontal force to set it in motion. Once the chair is in
1. 1 answer
2. asked by Nate
3. 1,844 views
A candy bowl contained 723 candies. Some of the candies were red and the rest were green. There were twice as many green candies
1. 4 answers
2. asked by lt
3. 1,787 views
A copper wire has a resistance of 24 Ω at 20°C. An aluminum wire has threetimes the length and twice the radius of the copper
1. 2 answers
2. asked by Trace
3. 1,738 views
. An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within one
1. 2 answers
2. asked by minhaj
3. 1,718 views
Find the sum of the first 40 terms of the arithmetic sequence. 19, 24, 29, 34
1. 2 answers
2. asked by Lindsay
3. 1,677 views
if it requires 35.0 milliliters of 0.50 molar NaOH to neutralize 25.0 milliliters of HCl, what is the concentration of the HCl
1. 3 answers
2. asked by smith
3. 1,609 views
After 10.0 s, a spinning roulette wheel at a casino has slowed down to an angular velocity of +1.74 rad/s. During this time, the
1. 1 answer
2. asked by michelle
3. 1,585 views
I have no idea how to construct this program. Any help is appreciated. Thank you.In a population, the birth rate is the
1. 1 answer
2. asked by Anon
3. 1,542 views
The rate law of the overall reaction.A + B -> C is rate = k[ A ]^2 Which of the following not increase the rate of a chemical
1. 1 answer
2. asked by ben
3. 1,484 views
Dissent and altruism are a matter of personal conviction, but situation factors are involved also. Analyze five situational
1. 2 answers
2. asked by Rena
3. 1,472 views
Consider the reaction2Al + 3CuSO4 = Al2(SO4)3 + 3Cu What is the maximum amount of Cu (63.5 g/mol) that could be produced by
1. 1 answer
2. asked by lance
3. 1,470 views
In what ways did Greek culture develop differently from Italian culture after the division of the Roman Empire
1. 1 answer
2. asked by tony
3. 1,453 views
A museum curator moves artifacts into place on many different display surfaces. Use the values in Table 4-2 in the textbook to
1. 1 answer
2. asked by Zach
3. 1,428 views
I need to simplify the following rational exponent:(64n^9)^2/3 I've done the following but don't think this is right: = 3|64n^18
1. 1 answer
2. asked by Dania
3. 1,404 views
On June 1, Melendez Company borrows $90,000 from First Bank on a 6-month,$90,000, 12% note. Instructions (a) Prepare the entry
1. 1 answer
2. asked by Sharon Lawson
3. 1,382 views
A pendulum is constructed from a thin, rigid, and uniform rod with a small sphere attached to the end opposite the pivot. This
1. 1 answer
2. asked by Dawb
3. 1,369 views
A 0.63-kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first
1. 3 answers
2. asked by Sarah
3. 1,358 views
What is the minimum value of the function f(x)= 4x^2+24x+39
1. 1 answer
2. asked by Jessica
3. 1,322 views
The bottom of a box has a surface area of 31.4 cm2. The mass of the box is 47.1 kilograms. Acceleration due to gravity at sea
1. 3 answers
2. asked by Jon
3. 1,321 views
A bat flies toward a wall at a speed of 3.5 m/s. As it flies, the bat emits an ultrasonic sound wave with frequency 30.5 kHz.
1. 0 answers
2. asked by BRANDY
3. 1,316 views
Indirect ProofsProve a triangle cannot have 2 right angles. 1) Given triangle ABC. 2) Assume angle A and angle B are both right
1. 1 answer
2. asked by chica
3. 1,316 views
i need help with these problems below !mike deposited $500 for 9 months at 8%, compounded quarterly. a. how many times was
1. 1 answer
2. asked by bree
3. 1,289 views
At 2200°C, K = 0.050 for the following reaction.N2(g) + O2(g) 2 NO(g) What is the partial pressure of NO in equilibrium with N2
1. 2 answers
2. asked by Anonymous
3. 1,283 views
Two blocks of equal mass m are tied to each other through a light string . One of the blocks is pulled along the line joining
1. 1 answer
2. asked by Pronab
3. 1,282 views
IF AB=10 UNITS AB= 8 UNITS AC= 12 UNITS ED= 4.5 UNITS IF ANGLE AED= 100 DEGREES WHAT IS THE MEASURE OF ANGLE DEC
1. 3 answers
2. asked by joana
3. 1,267 views
A Ferris wheel with radius 9.8 m rotates at a constant rate, completing one revolution every 36.6 s. Suppose the Ferris wheel
1. 1 answer
2. asked by Sheva
3. 1,267 views
A particle executes simple harmonic motion with an amplitude of 10 cm and time period 6 s. At t=0 it is at position x=5 cm going
1. 3 answers
2. asked by Pronab
3. 1,250 views
A 9.0 x 10^-3 kg ball is attached to a 3.6 x 10^-2 mass (M) by string that passes through a hole in a horizontal frictionless
1. 1 answer
2. asked by cel
3. 1,230 views
Which of the following statements is a false statement concerning characteristics of chemical equilibrium?a. Equilibrium is
1. 2 answers
2. asked by Carla
3. 1,230 views
When it is 152 m above the ground, a rocket traveling vertically upward at a constant 9.50 m/s relative to the ground launches a
1. 1 answer
2. asked by alejandrob
3. 1,222 views
Describe two laws of exponents and provide an example illustrating each law. Explain how to simplify your expression. How do the
1. 1 answer
2. asked by kelley
3. 1,192 views
A charged particle moves into a region of uniform magnetic field B, goes through half a circle, and then exits that region. The
1. 1 answer
2. asked by LA
3. 1,171 views
I've been having trouble setting up word problems. Here is one problem I need help with.How many Bromide ions are in a sample of
1. 1 answer
2. asked by Nescha
3. 1,150 views
a long distance phone company charges $3 for a phone call plus $0.75 for each minute of the call. What fuction does this
1. 2 answers
2. asked by lt
3. 1,143 views
Algebra Help? Union & Intersection of Sets, Complement and Cross Product, Relations &Functions,Venn Diagram?I did a survey on
1. 4 answers
2. asked by TiffanyM
3. 1,136 views
I really hope you can check these sentences for me. I tried to rephrase the beginning of chapter five of Shelley's Frankenstein.
1. 1 answer
2. asked by Franco
3. 1,131 views
A block attached to a spring with unknown spring constant oscillates with a period of 6.0 s. What is the period if the mass is
1. 2 answers
2. asked by mike
3. 1,130 views
the total cost of hiring a certain plumber is a flat rate of $35 plus $9.50/hr.6. Write an equation that shows the relationship
1. 2 answers
2. asked by Anonymous
3. 1,128 views
As it happens, you're right and I'm wrong.Tell if compound, complex, simple, compound-complex complex
1. 1 answer
2. asked by Hayley
3. 1,126 views
Between a bar graph and a line graph which one is more appropriate for displaying the number of individuals of dffering ages at
1. 1 answer
2. asked by m
3. 1,112 views
What is the minimum amount of 1.75 m of HCL necessary to produce 28.5 L of H2 at stp?EQUATION IS AS FOLLOWS: Mg+2HCL->>MgCl2+H2
1. 3 answers
2. asked by Ricardo
3. 1,109 views
how do i solve the following problem?Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO2 → 2NO + O2
1. 1 answer
2. asked by jess
3. 1,106 views
If you cut a 21 foot ribbon in four equal lengths how many feet long is the length of each ribbon?
1. 3 answers
2. asked by michelle
3. 1,087 views
1.7 mol of an ideal gas which starts at 1.6 atm and 50 o C does 2.0 kJ of work during an adiabatic expansion. What is the final
1. 1 answer
2. asked by serena
3. 1,084 views
Balance the equation:K2CrO4 + Na2SO3 + HCl --> KCl + Na2SO4 +CrCl3 + H2O
1. 1 answer
2. asked by Anonymous
3. 1,080 views
At a flea market held each weekend, an artist sells handmade earrings. The table below shows the average number of pairs of
1. 0 answers
2. asked by Pedro
3. 1,070 views
a partial balance sheet and income statement for King Corproation follow:KING CORPORATION Partial Balance Sheet December 31,2009
1. 2 answers
2. asked by Sheryl
3. 1,068 views
A cylinder is to be made of circular cross-section with a specified volume. Prove that if the surface area is to be a minimum,
1. 2 answers
2. asked by Thomas
3. 1,063 views
I know this has been posted many times but I keep trying and cannot get the right answer, A place kicker must kick a football
1. 0 answers
2. asked by melissa
3. 1,048 views
The kinetic energy of a 50 newton object resting on the edge of a cliff 30 meters high is?
1. 2 answers
2. asked by erik
3. 1,042 views
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.59 m and 0.98 m, respectively. The respective
1. 1 answer
2. asked by Anonymous
3. 1,041 views
help please!At 2200°C, K = 0.050 for the following reaction. N2(g) + O2(g) 2 NO(g) What is the partial pressure of NO in
1. 0 answers
2. asked by Alyssa
3. 1,038 views
Two masses are connected by a string. Mass A is on a flat roof and mass B is hanging over the edge of the roof. The mass on the
1. 2 answers
2. asked by Anna
3. 1,038 views
The earth's mass is 5.9763 X 10^27 (27th Power) . How much is it's mass in MG?
1. 1 answer
2. asked by 12345678987654321
3. 1,037 views
How would you solve this problem:An airplane is flying in still air with an airspeed of 240 mph. If it is climbing at an angle
1. 1 answer
2. asked by Anonymous
3. 1,024 views
How much heat is gained in joules by the water where a chemical reaction takes place in 100 mL aqueous solution and has a
1. 1 answer
2. asked by Darryl
3. 1,017 views
Sorry for asking the same question twice,I will go through it and provide a good answer.Please let me post though.Please give me
1. 1 answer
2. asked by Anonymos
3. 1,012 views
You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your
1. 3 answers
2. asked by michaelJ
3. 1,003 views
Suppose that Helen buys three items for 47 cents each, five items for 71 cents each, and two items for 1.21 each. What was the
1. 1 answer
2. asked by m
3. 1,002 views
I cannot figure a way to do this problem:An investment of $98,000 was made by a business club. The investment was split into
1. 2 answers
2. asked by samantha
3. 977 views
Please help!x-2y+z=7 2x+y-z=0 3x+2y-2z=-2 a. Solve the above system of equations using Gaussian Elimination or Gauss-Jordan
1. 1 answer
2. asked by Angel
3. 972 views
The side length,s, of a cube is related to its volume, v, by the formula s=v^1/3. A cube box when filled with materials has a
1. 1 answer
2. asked by Andre
3. 968 views
2. a. student ID number- not on resumeb. social security number – not on resume c. the Zip code of your references’
1. 7 answers
2. asked by gawoman
3. 967 views
If a=6cm, find the area of the equilateral triangle. Round the answer to one decimal place.
1. 1 answer
2. asked by Anonymous
3. 958 views
A random samples of 250 bolts manufactured by machine A and 200 bolts manufactured by machine B showed 24 and 10 defective bolts
1. 1 answer
2. asked by Varun
3. 958 views
1. A hollow sphere and a solid sphere roll without slipping down two different ramps. They start at different heights. The speed
1. 1 answer
2. asked by Joelle
3. 952 views
A man of mass 61.6 kg stands on a scaffold supported by a vertical rope at each end. The scaffold has a mass of 15.9 kg and is
1. 1 answer
2. asked by Bronson
3. 943 views
H2C=CH2(g) + H2(g) C2H6(g)Adding a small amount of platinum powder greatly increases the rate of the reaction above. How might
1. 1 answer
2. asked by nick
3. 941 views
I will like to know is this pargraph is correct.Why are many students choosing to pursue their college degrees using their home
1. 1 answer
2. asked by samantha
3. 937 views
A 63 canoeist stands in the middle of her canoe. The canoe is 3.0 long, and the end that is closest to land is 2.6 from the
1. 2 answers
2. asked by Rhea
3. 937 views
A cylindrical oil-storage tank is to be constructed for which the following costs apply:cost per square meter metal for ides
1. 2 answers
2. asked by Alicia
3. 937 views
Why are the alkali and alkaline earth metals more reactive than other elements on the periodic table?
1. 1 answer
2. asked by Caitlyn
3. 935 views
A cylinder is to be made of circular cross-section with a specified volume. Prove that if the surface area is to be a minimum,
1. 1 answer
2. asked by Thomas
3. 924 views
Can you make a negative command and another command (negative or affirmative) with a double object pronoun. They are in a
1. 1 answer
2. asked by Jackie
3. 922 views
The length of one base of a trapezoid is 19 meters and the length of the median is 23 meters. Find the length of the other base.
1. 0 answers
2. asked by Shaquaya
3. 919 views
A ceiling fan is rotating at 0.70 rev/s. When turned off, it slows uniformly to a stop in 2.9 s.(a) How many revolutions does it
1. 1 answer
2. asked by Shiva
3. 894 views

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