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Questions Asked on October 9, 2010

Among the examinees in an examination 30%, 35% and 45% failed in Statistics, in Mathematics, and in at least one of the subjects
1. 2 answers
2. asked by Neeraj Bhanot
3. 6,241 views
Calcium carbonate CaCO3 reacts with stomach acid (HCl, hydrochloric acid) according to the following equation:CaCO3(s)+2HCl(aq)-
1. 5 answers
2. asked by Dana
3. 4,327 views
My answer was 19.8 cm but it was incorrect.A basket of negligible weight hangs from a vertical spring scale of force constant
1. 1 answer
2. asked by .
3. 4,029 views
camphor melts at 179.8 degrees, and it has a particularly high freezing point depression constant.(kf=40 degrees/m). when 0.186g
1. 5 answers
2. asked by lucylu
3. 3,662 views
Given any right triangle with an acute angle theta, a) Explain why csc theta is always greater than or equal to 1b) Explain why
1. 2 answers
2. asked by Emily
3. 3,173 views
A multiple choice test consists of 60 questions. Each question has 4 possible answers of which one is correct. If all answers
1. 2 answers
2. asked by Lori
3. 2,862 views
Kepler’s third law. According to Kepler’s third law ofplanetary motion, the ratio t^2/r^3 has the same value for every
1. 1 answer
2. asked by Rick
3. 2,713 views
For a fair coin tossed three times, the eight possible simple events are HHH, HHT, HTH, THH, HTT, THT, TTH, TTT. Let X = number
1. 1 answer
2. asked by Anonymous
3. 2,545 views
Compare the amount of heat required to vaporize a 200.-gram sample of H20(L) at its boiling point to the amount of heat required
1. 3 answers
2. asked by danny123
3. 2,290 views
From a set of 1000 observations known to be normally distributed, the mean is 534 cm and SD is 13.5 cm. How many observations
1. 2 answers
2. asked by Neeraj Bhanot
3. 2,098 views
What is the number of grams of Hydrogen in 5.45 x 10^22 molecules NH3?
1. 2 answers
2. asked by Daniel
3. 2,022 views
In a laboratory experiment, a 18.0 ml sample of NaCl solution is poured into an evaporating dish with a mass of 24.00 g. The
1. 2 answers
2. asked by Allyse
3. 1,909 views
Samantha is suffering from fatigue and sometimes cannot make herself get of of bed in the morning. She feels that the world is a
1. 5 answers
2. asked by Melisa
3. 1,814 views
An atom contains a total of 29 electrons. When the atom is in the ground state how many principle energy levels will contain
1. 2 answers
2. asked by danny123
3. 1,754 views
Bromobenzene, C6H5Br, and chlorobenzene, C6H5Cl, form essentially ideal solutions in all proportions. At 100°C, the equilibrium
1. 5 answers
2. asked by lulu
3. 1,701 views
how many grams of Mg combine with 1.50 g of Cl ions in MgCl2 ?
1. 2 answers
2. asked by r2rou2a
3. 1,648 views
The Middle East is the spiritual homeland for all of the following world religions EXCEPT:a. judaism b.christianity c.islam
1. 3 answers
2. asked by cindy
3. 1,612 views
The boiling point of water at 735mmHg is 99.073°C. What mass of BaCl2 should be added to 2.28kg water to increase the boiling
1. 2 answers
2. asked by lucy
3. 1,609 views
Women comprise 80.3% of all elementary school teachers. In a random sample of 300 elementary teachers, what is the probability
1. 1 answer
2. asked by Lori
3. 1,566 views
a sucrose solution was prepared by dissolving 13.5g sucrose in enough water to make 100ml of solution. the density is 1.050gml.
1. 2 answers
2. asked by lucy
3. 1,519 views
1.The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2.
1. 1 answer
2. asked by jazz
3. 1,489 views
Humanism denies the role of determinism, but elevates the role of:A) suggestion B) positive thought processes C) free will D)
1. 2 answers
2. asked by Melisa
3. 1,464 views
A ball was thrown with a velocity of 150 ft/ s at angle of 45 degrees above the horizontal.a)Find the range and the time of
1. 2 answers
2. asked by lee
3. 1,421 views
An electron with a speed of 1.3 × 107 m/s moves horizontally into a region where a constant vertical force of 4.4 × 10-16 N
1. 4 answers
2. asked by koraile
3. 1,404 views
A motorcycle and 66.0 kg rider accelerate at 2.0 m/s2 up a ramp inclined 5.0° above the horizontal. What are the magnitude of
1. 4 answers
2. asked by Karl
3. 1,336 views
A 60 kg skier with an initial speed of 12 m/s coasts up a 2.5 m high rise that makes a 35 degree angle with the horizontal. If
1. 2 answers
2. asked by Me
3. 1,323 views
A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the
1. 3 answers
2. asked by Bolo
3. 1,266 views
What volume of 0.174M Na3PO4 solution is necessary to completely react with 89.1mL of 0.106M CuCl2?2Na3PO4(aq) + 3CuCl2(aq)
1. 1 answer
2. asked by Anonymous
3. 1,262 views
Preperation of a standard solution of sodium carbonate and titration for the equation between hydrchloric acid and sodium
1. 1 answer
2. asked by Paul
3. 1,262 views
the acme widget company has $13,000 available for making widgets. part of the money is spent on an advanced widget-bending
1. 1 answer
2. asked by rob
3. 1,259 views
A truck is traveling at 12 m/s down a hill when the brakes on all four wheels lock. The hill makes an angle θ = 15° with
1. 1 answer
2. asked by jamie
3. 1,236 views
The sedative Demerol hydrochloride has the formula C15H22ClNO2. How many grams are in 0.020 mol of Demerol hydrochloride?I got
1. 2 answers
2. asked by Jen
3. 1,232 views
One mole of H2O(g) at 1.00 atm and 100.°C occupies a volume of 30.6 L. When one mole of H2O(g) is condensed to one mole of
1. 5 answers
2. asked by nicole
3. 1,197 views
Magnesium reacts with HCl to produce magnesium chloride and hydrogen gas.Mg(s)+2HCl(aq)->MgCl2(aq)+H2(g). What is the molarity
1. 1 answer
2. asked by Dana
3. 1,195 views
Calculate (to the nearest 0.1 u) the formula mass of these compounds.(a) rubidium nitrate, RbNO3 u (b) aluminum peroxide,
1. 0 answers
2. asked by taylor
3. 1,155 views
The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2.
1. 1 answer
2. asked by jazz
3. 1,132 views
A plane dives at 37° to the horizontal and releases a package at an altitude of 380m. If the load is in the air for 4s, find:a)
1. 1 answer
2. asked by applebottom
3. 1,130 views
when the compute service bureau destroys or erases records, should the erasure be verified by the bureau to the physician?
1. 0 answers
2. asked by AB
3. 1,124 views
Three blocks are connected on the table as shown below. The coefficient of kinetic friction between the block of mass m2 and the
1. 4 answers
2. asked by Amber
3. 1,110 views
a rental car costs $24 per day plus 25 cents per mile. the total trip costs $54. how many miles were traveled if the trip lasted
1. 4 answers
2. asked by john
3. 1,108 views
A certain force gives an object of mass m1 an acceleration of 13.0 m/s2 and an object of mass m2 an acceleration of 2.10 m/s2.
1. 3 answers
2. asked by koraile
3. 1,105 views
A moving rod is 12.0 cm long and moves with a speed of 15.0 cm/s. If the magnetic field is 0.800 T, calculate (a) the emf
1. 1 answer
2. asked by dude
3. 1,095 views
what is the rate law for 2OF2 yeilds O2 + 2F2
1. 0 answers
2. asked by Anonymous
3. 1,094 views
Two planes are 1,400 miles apart. They fly towards each other, one at 125 mph and the other at 175 mph. How long does it take
1. 1 answer
2. asked by jason
3. 1,079 views
A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the
1. 2 answers
2. asked by Esthere G
3. 1,034 views
(1) A bullet of mass 1.9×10−3 kg embeds itself in a wooden block with mass 0.987 kg, which then compresses a spring (k = 120
1. 0 answers
2. asked by Fred
3. 1,022 views
A cat chases a mouse across a 1.1 m hightable. The mouse steps out of the way, and the cat slides off the table and strikes the
1. 1 answer
2. asked by unknown
3. 1,001 views
it has been found that the world record for the men's 10,000 meter run has been decreasing steadily since 1950. the record is
1. 2 answers
2. asked by dean
3. 996 views
Who was influenced negatively by the southern code of behaviour in the autobiography of miss jane pittman, and how?
1. 1 answer
2. asked by Riya
3. 987 views
What coupon rate should AirJet Best Parts set on its new bonds to sell them at par value?
1. 0 answers
2. asked by Jas
3. 985 views
use the euler diagram to determine if the syllogism is valid or invalid1. Football and studying don't mix Don is football
1. 0 answers
2. asked by natacha
3. 974 views
Dr. Wade excitedly explains that the difference between a male and female is apparent in the structure and function of the
1. 2 answers
2. asked by Melisa
3. 971 views
Given that Kw = 2.4x10^-14 at 37 celsius, compute the PH of a neutral aqueous solution at 37 celsius, which is the normal human
1. 1 answer
2. asked by Kim
3. 958 views
what are the different careers in home economics and their qualifications.
1. 3 answers
2. asked by pat
3. 953 views
A bacteria culture starts with 1,000 bacteria and doubles in size every 2 hours. Find an exponential model for the size of the
1. 0 answers
2. asked by liz
3. 948 views
A certain force gives an object of mass m1 an acceleration of 13.0 m/s2 and an object of mass m2 an acceleration of 2.10 m/s2.
1. 0 answers
2. asked by koraile
3. 917 views
a bread recipe calls for 2/3 cup of rye flour. you only have 3/4 cup on hand. what percent of your original amount of rye flour
1. 1 answer
2. asked by dawg
3. 907 views
A tennis ball rolls off the edge of a tabletop 0.800m above the floor and strikes the floor at a point 1.10m horizontally from
1. 3 answers
2. asked by Anonymous
3. 907 views
A launched rocket has an altitude, in meters, given by the polynomial h = vt -4.9t^2, where h is the height, in meters, from
1. 3 answers
2. asked by Michelle
3. 883 views
Find the expected value, ì, for the sum of two fair dice. The probability distribution for the sum of two dice is given in the
1. 1 answer
2. asked by Anonymous
3. 875 views
A titration was performed in which 56 ml of a .022M HCL solution was used to titrate 50 ml of a PB(NO3)2 solutiona) what was
1. 0 answers
2. asked by MAX
3. 873 views
I have to write an essay for english here is the topic:Identify the protagonist: The critic Randal Stewart has this is say about
1. 3 answers
2. asked by Roger
3. 873 views
the final exam in a course will count as 30% of the total. prior to the final exam, 245 points are possible. how many points
1. 3 answers
2. asked by paul
3. 869 views
Behavioral and psychodynamic perspectives differ in that the former emphasizes the____, while the latter focuses on___.A) the
1. 5 answers
2. asked by Melisa
3. 867 views
A diver running 1.3 m/s dives out horizontally from the edge of a vertical cliff and reaches the water below 2.5 s later. How
1. 2 answers
2. asked by GEO
3. 861 views
1. Maybe we can get together on the weekend.2. Maybe we can get together on weekend. 3. Maybe we can get together on weekends.
1. 1 answer
2. asked by rfvv
3. 860 views
Let P be the point (p,q) and L the line y = m x + b. It is not necessary, but if you like you may assume that P lies below the
1. 0 answers
2. asked by amy
3. 838 views
(a)block A weigh 60N. the coefficient of static friction between the block and the surface on which it rests is 0.25. the weight
1. 4 answers
2. asked by andrew
3. 837 views
i need to find 3 examples of using combustion in everyday life and theni need combustion example , fuel used , and is fuel a
1. 1 answer
2. asked by ++ LOUISA MAE++
3. 824 views
A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a)
1. 2 answers
2. asked by daisy
3. 824 views
CuSO4 + X h20 -> CuSO4 +xH20 ...a 9.6 g sample of CuSO4 was allowed to absorb water. After absorption the sample weighed 15.01
1. 1 answer
2. asked by MAX
3. 814 views
if 11.80 g of iron reacts with 5.06 g of oxygen . Determine the empirical formula of the resulting oxide ?
1. 1 answer
2. asked by r2rou2a
3. 806 views
Complete this conversation between two friends, Ana Margarita and Fernando. They are planning to go to a party with a group of
1. 1 answer
2. asked by Christopher
3. 796 views
The driver of a car traveling at 30 m/s needs to quickly reduce the car’s speed to 20m/s to round a curve in the highway. If
1. 1 answer
2. asked by lee
3. 781 views
Ok so im just totally confused because i don't technically have chemistry teacher (i have cancer so i cant go to school so while
1. 3 answers
2. asked by Ana
3. 781 views
If you don't know what page the word keening is on in the book Hatchet then can you tell me were to find the book online so I
1. 2 answers
2. asked by Sara
3. 779 views
Here are some more sentences I'd like you to check. Thank you very much.1) He can take a pound of flesh from Antonio on the
1. 1 answer
2. asked by Franco
3. 775 views
Your friend has a cube of gold. You have a cube of gold that weighs twice as much. Your cube is 1.26as long as your friends, and
1. 1 answer
2. asked by chris
3. 770 views
5.50 grams of nitrogen triiodide are detonated in a closed 7.00 L flask that was under full vacuum initially. The nitrogen
1. 1 answer
2. asked by Jazmin
3. 770 views
When 112 g of water at a temperature of 22.5°C is mixed with 65.1 g of water at an unknown temperature, the final temperature
1. 1 answer
2. asked by Noelle
3. 743 views
A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant externam pressure of 2.00 atm at a
1. 0 answers
2. asked by alexie
3. 727 views
I would like to know how I could write this in my own words. I wondering if you could help me out because I don't know what to
1. 1 answer
2. asked by Lauren
3. 725 views
A car that weighs 1.5 × 10^4 N is initially moving at a speed of 43 km/h when the brakes are applied and the car is brought to
1. 1 answer
2. asked by monnie
3. 718 views
After several drinks, a person has a blood alcohol level of 200 mg/dL (milligrams per deciliter). If the amount of alcohol in
1. 1 answer
2. asked by liz
3. 717 views
find 4 consecutive odd integers such that the sum of 7 times the smallest number and twice the largest is -91.
1. 1 answer
2. asked by Kory
3. 708 views
find an equation of the line containing the given pair of points. Use function notation to write the equation.(5/7,10/14) and
1. 1 answer
2. asked by kate
3. 691 views
A 50 ml sample of 0.025M AgNo3 is mixed with 15 ml of 0.04 M CrCl3. How many grams of AgCl will precipitate? Please show steps
1. 2 answers
2. asked by MAX
3. 671 views
A rock is tossed straight up with a velocity of 34.0 m/s. When it returns, it falls into a hole 17.3 m deep. What is the rock's
1. 1 answer
2. asked by Andres
3. 659 views
A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a)
1. 0 answers
2. asked by koraile
3. 643 views
9. An isosceles triangle is drawn with its vertex at the origin and its base parallel to the x-axis. The vertices of the base
1. 1 answer
2. asked by calculus
3. 643 views
motorcycle and 66.0 kg rider accelerate at 2.0 m/s2 up a ramp inclined 5.0° above the horizontal. What are the magnitude of the
1. 2 answers
2. asked by joe
3. 641 views
A spring gun launches a ball horizontally from 1.3 m above the floor. the ball strikes the floor 2.2m away, measured
1. 2 answers
2. asked by Bolo
3. 638 views
A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a)
1. 0 answers
2. asked by katherine
3. 632 views
A spring gun launches a ball horizontally from 1.3 m above the floor. the ball strikes the floor 2.2m away, measured
1. 1 answer
2. asked by Phanel
3. 629 views
How does this sound?8 de octubre ¡Hola, Marcia! Mi madre en casa de mis abuelos. No vamos al cine. Yo tengo que pasar la
1. 2 answers
2. asked by Lily
3. 625 views
a) IHI insurance is interested in determining whether younger drivers (below the age of 25) are more prone to motor accidents
1. 1 answer
2. asked by Scott
3. 619 views
Please answer the following questions and requirements to write your 4–6-page paper. As you answer each question, you must
1. 1 answer
2. asked by meeee
3. 616 views
o Formulate a hypothesis statement regarding your research issue.?o Perform a regression hypothesis test on the data.? o
1. 1 answer
2. asked by jessika
3. 614 views
For mla formatting an essay how do you write and cite a quote from a book?also, is the quote suppose to be in italics? thanks
1. 1 answer
2. asked by roger
3. 612 views
Larry leaves home at 1:01 and runs at a constant speed to the lamppost. He reaches the lamppost at 1:10, immediately turns, and
1. 1 answer
2. asked by Andres
3. 612 views

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