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2010
April

Questions Asked on April 13, 2010

a machine has 7 identical components which function independently. the probability that a component will fail is 0.2. the
1. 2 answers
2. asked by anonymous
3. 5,387 views
Calculate the total quantity of heat required to convert 25.0 g of liquid CCl4(l) from 25.0°C to gaseous CCl4 at 76.8°C (the
1. 4 answers
2. asked by Bob
3. 5,018 views
A certain radioactive material decays exponetially. The percent, P, of the material left after t years is given by P(t)=
1. 1 answer
2. asked by lala
3. 4,778 views
Assuming that sea water is a 3.5 wt % solution of NaCl in water, calculate its osmotic pressure at 20°C. The density of a 3.5%
1. 2 answers
2. asked by Bob
3. 4,423 views
how do u write 5.98x10 to the 24 power in expanded notaion??
1. 2 answers
2. asked by uyj
3. 3,647 views
Can u show me how to calculate the neutron-to-proton ratio of an atom?For example: tin-134 or silver-107
1. 4 answers
2. asked by Tammy
3. 3,217 views
FIND THE ADVERB AND THE WORD IT MODIFIES1. Mac looked everywhere for his jacket but could not find it.EVERYWHERE MODIFIES LOOKED
1. 5 answers
2. asked by Tiffany
3. 2,815 views
A ship is headed directly toward a coastline formed by a vertical cliff (segment BC) that is 80 meters high. At point A, from
1. 2 answers
2. asked by Amanda
3. 2,811 views
A woman, driving a golf ball off a tee, gives the ball a velocity of 28.0 m/s. The mass of the ball is 0.045 kg, and the
1. 2 answers
2. asked by Arnold Manguy
3. 2,807 views
Identify the solvent and the solute in vinegar, a dilute aqueous solution of acetic acid.
1. 1 answer
2. asked by Danny
3. 2,768 views
If two vectors u and v fit the equation (u − v) • (u − v) = u•u+v•v, how must these vectors u and v be related? What
1. 1 answer
2. asked by sally
3. 2,660 views
Limited Liability Companies. John, Lesa, and Trevor form a limited liability company. John contributes 60% of the capital, and
1. 2 answers
2. asked by Jamie
3. 2,622 views
80.0 g of iodine (v) oxide reacts with 28.0 g of carbon monoxide determine the mass of iodine
1. 1 answer
2. asked by Anonymous
3. 2,587 views
The time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10
1. 1 answer
2. asked by abby
3. 2,582 views
Draw the unit circle and a first-quadrant ray from the origin that makes an angle theta with the positive x-axis. Let B be the
1. 2 answers
2. asked by yadlay
3. 2,490 views
According to a study of 90 truckers, a trucker drives, on average, 540 miles per day. If the standard deviation of the miles
1. 1 answer
2. asked by Anonymous
3. 2,473 views
Is anyone know the molecular weight of 6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone. i can't find it . Thanks
1. 2 answers
2. asked by Jenny
3. 2,347 views
How much heat is released when 75.0 g of steam at 100.0°C is cooled to ice at -15.0°C? The enthalpy of vaporization of water
1. 2 answers
2. asked by Bob
3. 2,341 views
The position of a particle moving in a straight line is given by s(t) = 2sint - cost , from 0 to 2 piwhere s is the displacement
1. 1 answer
2. asked by Anonymous
3. 2,252 views
Julie Molony opened Julie's Maids Cleaning Service on July 1, 2010. During July, the company completed the transactions.July 1
1. 7 answers
2. asked by Nichole
3. 2,143 views
Interestingly, there have been several studies using cadavers to determine the moment of inertia of human body parts by letting
1. 2 answers
2. asked by zidd
3. 2,124 views
FIND THE ADVERBS1. Pedro enthusiastically supported Zach's bid for student council president. ENTHUSIASTICALLY 2. Spend your
1. 6 answers
2. asked by Tiffany
3. 2,023 views
A sample of fresh grapefruit juice was filtered and titrated with the above I2 solution. A 100 mL sample of the juice took 9.85
1. 1 answer
2. asked by Anonymous
3. 1,937 views
A student completes a titration by adding 12.0 milliliters of NaOH(aq) of unknown concentration to 16.0 milliliters of 0.15 M
1. 1 answer
2. asked by Gemma
3. 1,873 views
an electric toy cart has a mass of 6.0 kilograms and a constant acceleration of 0.50 m/s2. How much work does the net force do
1. 3 answers
2. asked by Jean
3. 1,835 views
Which of the following substances dissolve to a significant extent in water? Explain your answer in terms of polarity.a) CH4 b)
1. 1 answer
2. asked by Jack
3. 1,748 views
You have been asked to determine whether the function f(x)= 3 + 4cosx +cos2x is ever negative.a) Explain why you need to
1. 2 answers
2. asked by John
3. 1,712 views
Redox equations are often long and difficult to balance by inspection. Luckily, electron transfers and oxidation numbers provide
1. 1 answer
2. asked by Katelynn
3. 1,633 views
Holding a glass of water filled to a depth of 7.8 cm you step into an elevator. The elevator moves upward with constant
1. 3 answers
2. asked by Ryan
3. 1,534 views
Methanol(CH4O),used in racing cars,burns O2 to form CO2and H2O.2CH4O(l) + 3O2(g)-->2Co2(g) +4H2O(g) 32.0g/mol 32.g/mol 44.g/mol
1. 1 answer
2. asked by cathy
3. 1,509 views
A rectangular prism has a volume of 54 cubic centimeters. If the length, width, and height are all changed to 1/3 of their
1. 4 answers
2. asked by Mike
3. 1,490 views
A large pizza from Papa's Pizzeria has a diameter of 18 inches. If each large pizza is cut into 10 equal slices, what is the
1. 4 answers
2. asked by Javier
3. 1,479 views
A survey revealed that 4 out of 5 people prefer vanilla ice cream to chocolate. In a class of 30 how many students are likely to
1. 7 answers
2. asked by christopher
3. 1,463 views
Hi, I have a few chemistry problems that I'm having trouble solving. I put my attempted solutions after the problems in *'s.
1. 2 answers
2. asked by Maggie
3. 1,426 views
Let u = [2,−3, 1] and v = [0, 1, 4]. Calculate the vector u − v. Place u and v tail-to-tail to form two sides of a triangle.
1. 1 answer
2. asked by sarah A
3. 1,424 views
what 2 integers do the square root of 93 lay between.
1. 1 answer
2. asked by christopher
3. 1,403 views
WHY IS IT SIGNIFICANT THAT OCTAVIAN DID NOT TAKE THE TITLE OF DICTATOR?
1. 5 answers
2. asked by hillary
3. 1,320 views
A saturated solution of CaSO4(aq) is made in a beaker until there is excess calcium sulfate resting at the bottom. Then solid
1. 1 answer
2. asked by Maggie
3. 1,320 views
the international olympic committee states that the female participate in the 2004 Summer Olympic Games was 42%, even with the
1. 1 answer
2. asked by Crystal
3. 1,307 views
what are two distinguishing characteristics of prokaryotes?
1. 3 answers
2. asked by Sabia
3. 1,293 views
Slater Lamp Manufacturing has an outstanding issue of preferred stock with an $80 par value and 11% annual dividend. What is the
1. 1 answer
2. asked by Jill
3. 1,290 views
A student throws a 9 gram of gum is thrown across the physics lab from a distance of 2.5 m. When the gum has a horizontal
1. 1 answer
2. asked by Jacob
3. 1,272 views
Distinguish between efflorescent and hygroscopic substances.
1. 1 answer
2. asked by Keith
3. 1,242 views
at what temperature does 16.3 g of nitrogen gas have a pressure of 1.25 atm in a 25.0 - L tank?
1. 2 answers
2. asked by cc
3. 1,242 views
a solution weighs 44grams. this sample contains 12grams of salt calculate % m/m salt.
1. 1 answer
2. asked by Jazmin
3. 1,235 views
I need to describe current moral and ethical issues faced by a child's day care. Can somebody give me some current moral and
1. 2 answers
2. asked by AMW
3. 1,217 views
1. There is only a little water in the glass on the table.2. There is only little water in the glass on the table. (What is the
1. 1 answer
2. asked by rfvv
3. 1,207 views
Can you please translate:vous me donner un cadeau d'anniversaire de ma sœur?
1. 2 answers
2. asked by Jen
3. 1,196 views
A shoe store carries one brand of shoe in 3 styles, 5 sizes, and 4 colors. How many different shoes are available for this one
1. 3 answers
2. asked by KiKi
3. 1,152 views
an electric field of 640 v/m is desired between two metal plats 11.0 mm apart. how large a voltage should be applied?
1. 2 answers
2. asked by john
3. 1,128 views
Tots-R-Us operates the only day-care center in an exclusive neighborhood just outside of Washington, D.C. Tots-R-Us is making
1. 0 answers
2. asked by Suzie
3. 1,126 views
How can physical activity improve health and wellness?
1. 3 answers
2. asked by Tiffany
3. 1,119 views
what is the political economy of the Euro?
1. 1 answer
2. asked by Amina
3. 1,114 views
1. She likes playing with her dog.2. She likes playing with a puppy. 3. She likes playing with her puppy. 4. She likes playing
1. 0 answers
2. asked by rfvv
3. 1,093 views
Which one is the smallest animal in the sea? Is a sea horse the smallest in the sea? Is a sea horse is the slowest in the sea?
1. 0 answers
2. asked by rfvv
3. 1,093 views
When 260. mL of 1.50 x 10-4 M hydrochloric acid is added to 125 mL of 1.75 x 10-4 M Mg(OH)2, the resulting solution will be
1. 2 answers
2. asked by Bob
3. 1,089 views
Question from the Classroom: 10A student claims that the equation Ö(-x) = 3 has no solution, since the square root of a
1. 3 answers
2. asked by dan
3. 1,087 views
What are some of the major industries of the southwest region?
1. 3 answers
2. asked by Debbie
3. 1,087 views
Mrs. Lopez wants to retile her 16 ft by 18 ft dining room.a. How many 1 sq ft tiles does she need? I calculated 288 tiles b. She
1. 2 answers
2. asked by Nam
3. 1,087 views
Can you check these sentences for me, please? Thank you very much for your help.1)Big Brother is a TV programme (or a reality
1. 1 answer
2. asked by Franco
3. 1,082 views
equation 4x = 5y + 7. You want to find a line that has that point and is parallel to that line. You must first convert that
1. 1 answer
2. asked by Anonymous
3. 1,069 views
Two geekie physics students with a combined mass of 131 kg jump into their old car to run out for some late night pizza. The
1. 1 answer
2. asked by Jacob
3. 1,054 views
Suppose a hydrogen-oxygen fuel-cell generator was used to produce electricity for a house. Use the balanced redox reactions and
1. 1 answer
2. asked by Katelynn
3. 1,051 views
I completed a problem where there was a $7855.00 note at the bank that charges a 14.3 % discount rate. The loan is for 190 days.
1. 0 answers
2. asked by Wanda
3. 1,048 views
In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016 kg and a
1. 1 answer
2. asked by Mikhail Moskvich
3. 1,034 views
Find parametric equations and symmetric equations for the line of intersection of the given planes.x + y + z = 2, x + z = 0 X=1
1. 1 answer
2. asked by Mike
3. 1,034 views
(a) The total mass of carbon contained in fossil fuels that was burned in the world from 1750 to 2000 wasestimated to be 2.9 x
1. 0 answers
2. asked by Anonymous
3. 1,018 views
Answer the problems below and show or explain how you arrived at your final answer.1. You sell premium toasters and are making a
1. 1 answer
2. asked by jj
3. 1,016 views
A student gets a 2.9 kg mass to oscillate up and down on bottom of a light vertical spring by pulling her hand up and down on
1. 2 answers
2. asked by Jacob
3. 1,010 views
How do i find the second derivative of f(x)= tan(1-x)^1/2
1. 1 answer
2. asked by lala
3. 1,007 views
suzanne has collected 44 carpet squares she would like to place them side y side going down the hallway,creating two columns of
1. 1 answer
2. asked by Feryal
3. 944 views
FIND THE VOLUME OF A TRUANGULAR PRISM WITH A BASE OF 4 FT HEIGHT OF 18 FT . AND THE HEIGHT OF THE PRISM IS 22 FT .NOW CHANGE
1. 0 answers
2. asked by COURTNEY
3. 908 views
I need to show that the right side equals the left side but I am having a little trouble simplifying.k(2k+1) +(4(k+1)-1) =
1. 2 answers
2. asked by Abbey
3. 895 views
is caisted a word?
1. 3 answers
2. asked by marly
3. 884 views
how do you write all the months in japanese?
1. 2 answers
2. asked by shakti
3. 883 views
What should I state in an essay concerning evaluating the effectiveness of devises used to represent internal states of mind in
1. 1 answer
2. asked by Tladi
3. 869 views
The mean height of 5 students is 61.8. If one of the students leaves, the mean height becomes 60. What is the height of the
1. 3 answers
2. asked by KiKi
3. 869 views
simplify the square root of 72
1. 4 answers
2. asked by christopher
3. 866 views
4j+8=j-10I don't know how to figure out the j value.
1. 2 answers
2. asked by darrel
3. 853 views
Your brothers mass is35.6kg and he has a1.3 kg skateboard.what is the combined momentum of your brother and his skateboard if
1. 1 answer
2. asked by monaya
3. 841 views
I need help understandinddifferent ethics duty-based, consequence-based, rights-based, human nature, relativistic and
1. 3 answers
2. asked by Joyce
3. 840 views
Was the bubonis plague in the Middle Ages a blessing or curse?
1. 1 answer
2. asked by Troy
3. 837 views
do a summary on the Immigration Act of 1924
1. 1 answer
2. asked by dice
3. 834 views
The 18th hole at the Riverwoods Golf Course is 441 yards long. How long would it be on a model with a scale of 2.5 inches to 100
1. 3 answers
2. asked by Bart
3. 831 views
The function d=-8cos2t describes a simple harmonic motion, where d is the distance(in meters) an object travel in t seconds.
1. 1 answer
2. asked by rachel
3. 818 views
write a fraction for 5 buttons with 4holes
1. 0 answers
2. asked by robert
3. 798 views
do all electrons ejected from a metal surface have the same kinetic energy?
1. 1 answer
2. asked by Anonymous
3. 783 views
1. Some photosynthetic bacteria are able to harvest 900-nanometer light (4 points).A. What is the energy in kilocalories of a
1. 0 answers
2. asked by andy
3. 776 views
the area of the base of a triangular prisim A is 15 square inches and its altitude is 8 inches. Rectangular prism B has a square
1. 2 answers
2. asked by Lena
3. 764 views
the limit from n->infinity of the summation of [2+(3/n)k]^2(3/n) when k=1
1. 0 answers
2. asked by Lauren
3. 754 views
tan(2x)=root3 over 3
1. 1 answer
2. asked by Chelly
3. 751 views
Explain whether the set {0, 1, 2} is closed with respect to addition on whole numbers.
1. 0 answers
2. asked by dan
3. 749 views
Describe all the points on the Earth’s surface that are exactly 4000 miles from the North Pole. If you need to, use 3960 miles
1. 0 answers
2. asked by Lydia
3. 734 views
The thermite reaction is a very exothermic reaction; it has been used to produce liquid iron for welding. A mixture of 2 mol of
1. 1 answer
2. asked by Nancy
3. 722 views
When a good indicator has been chosen, the pH at which the solution changes color is very close to thepoint of the titration.
1. 1 answer
2. asked by need help student
3. 720 views
A student gets a 2.9 kg mass to oscillate up and down on bottom of a light vertical spring by pulling her hand up and down on
1. 1 answer
2. asked by Jacob
3. 715 views
What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve to make a saturated solution in water?*For this one the
1. 1 answer
2. asked by Maggie
3. 705 views
Consider the experiment of rolling a single die. Find the probability of the event described.What is the probability of rolling
1. 1 answer
2. asked by KiKi
3. 701 views
Consider the wide spectrum of business organizations, ranging from gigantic corporations to working at home. Describe at least
1. 1 answer
2. asked by Joe
3. 697 views
A rectangular storage building is 30 feet long and 25 feet wide. Find the ratio of the length to the primeter of the bulding.now
1. 5 answers
2. asked by christopher
3. 694 views

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