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2011
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Questions Asked on March 14, 2011

Suppose a 6ft. man is 10 ft. away from a 24 ft. tall lamp post. If the person is moving away from the lamp post at at rate of 2
1. 3 answers
2. asked by Anonymous
3. 178,825 views
A block of mass m is placed in a smooth-bored spring gun at the bottom of the incline so that it compresses the spring by an
1. 2 answers
2. asked by Trevor
3. 9,445 views
Can you please tell me if these are correct?1. Sodium Hydrogen Sulfite reacts with hydrochloric acid to produce sulfur dioxide
1. 5 answers
2. asked by Anonymous
3. 6,123 views
About how much does a button weigh?1 gram 100 grams 1 kilogram 10 kilograms Thanks!
1. 9 answers
2. asked by Maddie
3. 5,352 views
addition of a strong acid would increase the solubility of which of the following saltsAgCl CaSO4 CdS CaCO3 PbBr2 CaHPO4 Cd(OH)2
1. 1 answer
2. asked by Emily
3. 4,792 views
is it ok to end a paragraph with a quote
1. 3 answers
2. asked by Anonymous
3. 3,633 views
In a "worst-case" design scenario, a 2000-{\rm kg} elevator with broken cables is falling at 4.00 {\rm m/s} when it first
1. 2 answers
2. asked by Trevor
3. 3,537 views
Which of the following solutions contain the greatest total ion concentration?a) one mole of potassium chloride dissolved in
1. 1 answer
2. asked by Jon
3. 3,007 views
The circular rug is placed on a square floor. The rug touches all four walls. How much of the floor space is not covered by the
1. 10 answers
2. asked by Jenny
3. 2,984 views
A plane flies horizontally at an altitude of 5 km and passes directly over a tracking telescope on the ground. When the angle of
1. 3 answers
2. asked by yolana
3. 2,954 views
If you cut a letter-sized document into 4 equal pieces (4-up), what are the dimensions of each piece?
1. 3 answers
2. asked by Alex
3. 2,694 views
Find the number of revolutions of a bicycle wheel of diameter 0.7m when the bike goes a distance of 22m down the street.
1. 3 answers
2. asked by Anonymous
3. 2,565 views
A simple pendulum of length is oscillating through a small angle θ in a medium for whichthe resistance is proportional to the
1. 4 answers
2. asked by shasha
3. 2,319 views
What is the decimal equivalent of 1/4
1. 7 answers
2. asked by Alex
3. 2,223 views
If the solubility of NaCl at 25 degrees Celsius is 36.2 g/100 g H2O, what mass of NaCl can be dissolved in 200.0 g of H2O?
1. 2 answers
2. asked by colleezy
3. 2,109 views
I really need help with balancing these equations: Can you check if my answer are correct? Please1. Sodium Hydrogen Sulfite
1. 3 answers
2. asked by Anonymous
3. 2,048 views
I really need help with balancing these equations: PLEASE HELP!!1. Sodium Hydrogen Sulfite reacts with hydrochloric acid to
1. 4 answers
2. asked by Anonymous
3. 1,964 views
Why does 0.10M acetic acid exhibit different conductivity from that of glacial acetic acid?
1. 1 answer
2. asked by G
3. 1,893 views
In a chemical reaction, substance A combines with substance B to form substance Y. At the start of the reaction, the quantity of
1. 3 answers
2. asked by mike
3. 1,890 views
What is my theoretical yield of iron II chloride if I start with 34 grams of iron II bromide?
1. 2 answers
2. asked by Allie
3. 1,845 views
Zinc metal reacts with hydrochloric acid to produce zinc (II) chloride and hydrogen gas. what volume (in mL) of 2.0M HCl is
1. 1 answer
2. asked by Jon
3. 1,780 views
Which of the following solutions contain the greatest total ion concentration?a) one mole of potassium chloride dissolved in
1. 1 answer
2. asked by Jon
3. 1,721 views
Eight one-inch cube are put together to make a “T”. If the complete figure is painted blue, how many cubes have exactly for
1. 2 answers
2. asked by Ryan
3. 1,630 views
how many half-lives have passed if 87.5% of a substance has decomposed? how many if 99.999% has decomposed?
1. 1 answer
2. asked by Kim
3. 1,622 views
Sperm cells have very little cytoplasm, while egg cells have a lot of cytoplasm. How do these different structures support the
1. 2 answers
2. asked by Jess
3. 1,609 views
In a movie theater, theater A has 30 seats in the first row. Each next row has 4 more seats in it than the previous row has.1)
1. 3 answers
2. asked by Stacy
3. 1,597 views
When solving a system of equations by the addition method, how do you know when the system has no solution?
1. 1 answer
2. asked by Logan
3. 1,595 views
Analyzing a Political CartoonPolitical cartoons are drawings that express a point of view. They generally show public figures,
1. 4 answers
2. asked by Coop
3. 1,578 views
Which one of the following statements about intelligence is the most accurate?IQ is a valid measurement, and environmental
1. 3 answers
2. asked by Chloe
3. 1,569 views
If one company(A) owns another company(B) and Company B owns a third company (C) is it safe to say that Company A owns part of
1. 1 answer
2. asked by Don
3. 1,507 views
What was the fourteen points?
1. 1 answer
2. asked by Daisy
3. 1,498 views
how many grams of lithium sulfate will be formed when 25 grams of sulfuric acid react with an excess of lithium hydroxide in the
1. 1 answer
2. asked by mary
3. 1,495 views
A sample of air occupies 3.8 L when the pressure is 1.2 atm.(a) What volume does it occupy at 7.3 atm? (b) What pressure is
1. 1 answer
2. asked by Alex
3. 1,472 views
Silver chloride can be prepared by the reaction of 100mL of 0.20M silver nitrate with 100mL of 0.15M calcium chloride. after the
1. 4 answers
2. asked by Jon
3. 1,461 views
I am to find the mean, variance, and standard deviation for the probability distribution. I don't even know where to start. Here
1. 2 answers
2. asked by Heather
3. 1,444 views
In a movie theater, Theater A has 30 seats in the first row. Each next row has 4 more seats in it than the previous row has.1)
1. 1 answer
2. asked by David
3. 1,436 views
A 150.0 mL flask contains 0.391 grams of a volatile oxide of sulfur. The pressure in the flask is 750 mmHg and the temperature
1. 1 answer
2. asked by Rachel
3. 1,416 views
CongruenceTrue or False: (give reason) _ __ 2 ∈ 18 (mod 8) Can someone please help with this problem? I'm confused. . . Thanks
1. 26 answers
2. asked by Francesca
3. 1,384 views
Find all values of theta in the interval 0 <= theta < 360 that satisfy the equation 3cos(2theta)=7cos(theta). Express answers to
1. 3 answers
2. asked by Waldo
3. 1,335 views
a woman wants to construct a box whose base length is twice the base width. The material to build the top and bottom is $ 9/m (
1. 0 answers
2. asked by Tomas
3. 1,317 views
INTRODUCTIONImagine yourself seven years from now. You are approximately 22 years old, and are looking to start a career after
1. 22 answers
2. asked by Anonymous
3. 1,298 views
Finding all Solutions for2cos(x)-�ã3=0
1. 5 answers
2. asked by Kelly
3. 1,294 views
8. The current in a simple series circuit is 5 amp. When an additional resistance of 2 ohms is inserted in series, the current
1. 1 answer
2. asked by okay
3. 1,197 views
What is the size of the margin (inside the business card) to prevent text and graphics from being cut off during trimming
1. 1 answer
2. asked by Alex
3. 1,194 views
1- Determine the [OH-] and pH of a solution that is .250 M in HCO-32- Calculate the [H3O+] and pH of each polyprotic acid
1. 0 answers
2. asked by Joey
3. 1,184 views
A solution is prepared by dissolving 23.7g of CaCl2 in 375.0g of water. The density of this solution is 1.05g/mL. determine the
1. 1 answer
2. asked by jim
3. 1,174 views
26.5 moles of a .2 M aqueous solution of NaOH is required to titrate 50 ml of an aqueous solution of HNO3, what is the
1. 0 answers
2. asked by Daniel
3. 1,160 views
Which words in the following title ought to be capitalized? This is how I was intending to capitalize it: To not only Look
1. 5 answers
2. asked by touché
3. 1,154 views
1. What are the next two terms in each sequence?2, 4, 8, 14, 22, … (2 points) 30, 38 30, 40 32, 44 32, 46 2. What are the next
1. 5 answers
2. asked by Jesicca
3. 1,151 views
A small motor draws a current of 1.76 A from a 110 V line. The output power of the motor is 0.20 hp.(a) At a rate of $0.060/kWh,
1. 1 answer
2. asked by julie
3. 1,130 views
Bill and Rosa have only nickels and dimes. Rosa has 75 cents and Bill has 90 cents. Each has the same number of coins and Bill
1. 3 answers
2. asked by Angie
3. 1,115 views
is the word days a homophone?
1. 2 answers
2. asked by isabel
3. 1,108 views
A survey found that 25% of pet owners had their pets bathed professionally rather than doing it themselves. If 20 pet owners are
1. 1 answer
2. asked by Ashley
3. 1,108 views
1. In an experiment performed by Gregor Mendel the results were are as follows. Two pea plants were crossed both were
1. 0 answers
2. asked by Jessie
3. 1,105 views
A 10.00g sample of a mixture of CH4 and C2H4react with O2 at 25C and 1 atm to produce CO2 and water. If the reaction produces
1. 0 answers
2. asked by Aly
3. 1,094 views
Imagine you are a working mother of 3 children who has experienced inequity in the workplace regarding pay and conditions. Write
1. 1 answer
2. asked by Shivi
3. 1,092 views
A bank account earns 10 percent interest compounded continously. What annual amount of money must parents deposit each year in
1. 0 answers
2. asked by aj
3. 1,083 views
An unknown compound X is one of the four compounds listed in the table below. A mixture of X with o-toluic acid melts at 100
1. 0 answers
2. asked by Jenna
3. 1,079 views
A hiker shouts toward a vertical cliff 789.5m away. The echo is heard 2.1s later. The wavelength of the sound is 12.3 m.What is
1. 0 answers
2. asked by Parker
3. 1,078 views
Light relects off a mirror. Light reflects off the white surface of a ceiling/wall. Why can you see images in a mirror but not
1. 1 answer
2. asked by Erika
3. 1,073 views
A tire placed on a balancing machine in a service station starts from rest and turns through 10.8 revolutions in 8.48 s before
1. 1 answer
2. asked by Emily
3. 1,070 views
An airline pilot pulls her 12.0 kg rollaboard suitcase along the ground with a force of 25.0 N for 10.0 meters. The handle she
1. 1 answer
2. asked by Ryan
3. 1,063 views
a mass of 0.2 kg is whirled at 12 revolutions in 2 sec in a horizontal circle at the end of o string0.8m long.(a)angular
1. 1 answer
2. asked by jhay
3. 1,060 views
When people don't clearly recognize the obstacle causing their frustration, theyA. will probably strike out at any convenient
1. 2 answers
2. asked by Anonymous
3. 1,057 views
If the diagonal of a square has a length of 10 suare root of 2 cm, find the area of the square and the perimeter of the square.
1. 2 answers
2. asked by Jen
3. 1,057 views
A billiard ball moving at 5.80 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 4.81
1. 1 answer
2. asked by John
3. 1,049 views
The capacity of a measuring pitcher is 96 fluid ounces. How many quarts can the pitcher hold?
1. 3 answers
2. asked by Andrea
3. 1,048 views
a. If the face value of a coin exceeds the cost of coinage, the resulting revenue to the issuer of the coin is known as
1. 1 answer
2. asked by Anonymous
3. 1,045 views
show working production function: q = 6l – 0.5l2 where q = number of car washes per hour and l = number of workers. a)
1. 0 answers
2. asked by Soanz
3. 1,037 views
how many grams of calcium nitrate are needed to make 100mL of a 0.5M solution
1. 1 answer
2. asked by Anonymous
3. 1,037 views
What are the products of a reaction between NaCl, HNO3, and AgNO3?
1. 2 answers
2. asked by Neil
3. 994 views
a friend has a new baby and has invited you to her house . write a letter accepting the invitation . ask for two questions that
1. 3 answers
2. asked by sarah
3. 983 views
The president of the country PTA organization makes copies of membership lists for all of the elementary schools. Sometimes she
1. 1 answer
2. asked by Karen
3. 976 views
The half-reaction of 3 Pb + 2 NO3 + 8 H-->3 Pb2+ + 2 NO + 4H2O
1. 0 answers
2. asked by Noluvuyo habasisa
3. 973 views
a 23ml H2SO4 solution is titrated by 50 ml 0.10 M NaOH solution, what is the molarity of H2SO4 solution? (Note that H2SO4 is a
1. 1 answer
2. asked by Joel
3. 970 views
The majority of the world’s diamonds comes from Country A and Country B. Suppose that the marginal cost of mining a diamond is
1. 0 answers
2. asked by Amanda
3. 958 views
What is the typical screen resolution of a computer monitor?A) 85 B) 200 C) 72 D) 100 dont want the answer, just a hint.
1. 1 answer
2. asked by Alex
3. 949 views
A circular swimming pool is 4 feet deep and has a diameter of 15 feet. If it takes 7.5 gallons of water to fill one cubic foot,
1. 2 answers
2. asked by Anonymous
3. 946 views
In a steam radiator, steam at 110°C condenses and the liquid water formed is cooled to 80°C. How much heat per gram of liquid
1. 0 answers
2. asked by dawn
3. 942 views
Find the exact value of Sin^-1(sin(13pi/15))
1. 1 answer
2. asked by Kelly
3. 938 views
6. A square aluminum rod is 1.0 meters long and 5.0 mm on edge. What is the resistance between its ends? What must be the
1. 1 answer
2. asked by okay
3. 936 views
Calculate [H3o+] in each aqueous solution at 25*C, and classify each solution as acidic or basic.a. [OH-]= 1.1 x 10^-9M b.
1. 0 answers
2. asked by sally
3. 932 views
What is the density of coconut oil?
1. 0 answers
2. asked by Mckey
3. 931 views
A billiard ball moving at 5.80 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 4.81
1. 0 answers
2. asked by John
3. 928 views
a bank account earns 7% annual interest compounded continuously. you deposit $10,000 in the account, and withdraw money
1. 1 answer
2. asked by Anonymous
3. 909 views
While watching ocean waves at the dock of the bay, Otis notices that 10 waves pass beneath him in 30 seconds. He also notices
1. 1 answer
2. asked by Shannon
3. 895 views
Please check my answers:How are the symbols 3/4, 0.75, and 75% related? They are all different ways to express the same number.
1. 0 answers
2. asked by Anonymous
3. 874 views
1..........At what temperature of 0^C steel rod & copper rod have length of 80.1cm and 99.9cm respectively. At what temperature
1. 2 answers
2. asked by eissa
3. 868 views
"if the general public benefits from entrepreneurial politics why aren't such policies fueled by a social movement or other mass
1. 1 answer
2. asked by chrissy
3. 867 views
Use an inequality to solve the problem. Be sure to show the inequality and all of your work.The area of a triangle must be at
1. 0 answers
2. asked by Anonymous
3. 867 views
how much energy would be released in the following reactionCH4 + 2O2--> CO2 + 2H2O
1. 1 answer
2. asked by Anonymous
3. 866 views
why is yellow journalism important in the Spanish American war?
1. 2 answers
2. asked by ashley --- HELP PLEASEE!!!
3. 865 views
What is Brazil’s Cerrado, and how is agriculture affecting it?
1. 1 answer
2. asked by MARYLANIZ
3. 864 views
The mass of a star is 1.49·1031 kg and it performs one rotation in 26.1 days. Find its new period (in /days) if the diameter
1. 0 answers
2. asked by Megan
3. 849 views
taxes are used for many things.for reparing schools and community buildings.please give me another way how taxes are used.
1. 1 answer
2. asked by alexander- very important!!!
3. 848 views
A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.4 cm/min. At what rate is the volume
1. 1 answer
2. asked by Anonymous
3. 846 views
Explain why the addition method might be preferred over the substitution method for solving the system 2x-3y=55x+2y=6 Am lost on
1. 0 answers
2. asked by Logan
3. 840 views
sin^2x/sec^2x-1
1. 0 answers
2. asked by Kelly
3. 834 views
How do you find the circumference of a circle?
1. 4 answers
2. asked by Dan
3. 824 views
Determinne the amount of Dextrose and NaCl in 500ml of 5% DNS. (The solution is 5% in regards to dextrose and 0.9% in regards to
1. 1 answer
2. asked by Sonya
3. 819 views

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