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2012
April

Questions Asked on April 18, 2012

1. What is the lateral surface area of a square pyramid with side length 11.2 cm and slant height 20 cm?224 cm2 448 cm2 896 cm2
1. 40 answers
2. asked by lilman
3. 23,368 views
the velocity of a particle traveling in a straight line is given by v=(6t-3t^2)m/s, where t is in seconds, if s=0 when t= 0.
1. 2 answers
2. asked by chanz11
3. 5,588 views
A mass is oscillating with amplitude A at the end of a spring.How far (in terms of A) is this mass from the equilibrium position
1. 2 answers
2. asked by Joe
3. 5,255 views
8 1/2 HRS ON THIS MASTERING PHYSICS WOWn 1909, Robert Millikan was the first to find the charge of an electron in his now-famous
1. 2 answers
2. asked by Kristie
3. 4,968 views
A white-crowned sparrow flying horizontally with a speed of 1.65 m/s folds its wings and begins to drop in free fall.(a) How far
1. 2 answers
2. asked by A
3. 4,041 views
Electronic types neglect the force of gravity on electrons.To see why, compute the force of Earth's gravity on an electron and
1. 2 answers
2. asked by Kristie
3. 3,882 views
ATP synthase, shown below, uses the proton (H ) gradient to drive ATP synthesis. Put the following steps of ATP synthesis in
1. 4 answers
2. asked by lolo
3. 3,847 views
Fine the error in punctuation or capitalization1. "After you've rested," Frank said, "please help me move these boxes." "Can we
1. 6 answers
2. asked by kevin
3. 3,510 views
Evaluate the expression under the given conditions.sin2(theta), sin(theta)=1/7(theta) in Q2
1. 2 answers
2. asked by Amanda
3. 3,384 views
Two masses, m1=3kg and m2=2kg, are suspended with a massless rope over a pulley of mass M = 10kg. The pulley turns without
1. 3 answers
2. asked by Jake
3. 3,169 views
How many millimoles and molecules of solute are in 500 ml of a solution that is 5.41 ppm KMnO4?
1. 1 answer
2. asked by Anna
3. 3,037 views
calculate the density of a cork of mass 24g and volume 100 cm3. what would its density be if its volume increases to 200 cm3?
1. 4 answers
2. asked by suevasha
3. 3,023 views
If 30 grams of KCl is dissolved in 100 grams of water at 40 degrees celsius, how many additional grams of KCl would be needed to
1. 4 answers
2. asked by Sarah
3. 2,963 views
How do I change a decimal that looks like this 0.31 1/4 into a fraction?
1. 3 answers
2. asked by Dianna
3. 2,883 views
1. A closed magnetic circuit of cast steel contains a 6cm long path of cross sectional area 1cm square and a 2cm part of cross
1. 2 answers
2. asked by Joanna
3. 2,857 views
a truck traveling along a straight road at 20km/h,increases its speed to 120km/hr in 15 s. If its acceleration is constant.
1. 1 answer
2. asked by chanz11
3. 2,806 views
"A years worth of hard work has finally paid off."year (my choice) years years' year's Please check.
1. 2 answers
2. asked by lilman
3. 2,713 views
the acceleration of a particle as it moves along a straight line is given by a=(2t-1)m/s^2, where t is in seconds.if s=1m and v=
1. 1 answer
2. asked by chanz11
3. 2,245 views
A bacterial culture isolated from sewage produced 35.5 mL of methane, CH4, at 31oC and 1 atm. What is the volume of this methane
1. 1 answer
2. asked by Anonymous
3. 2,225 views
find an equation for the hyperbola vertices (3,0),(3,4) asymptotes:y=2/3,y=4-2/3x
1. 2 answers
2. asked by sandra
3. 2,012 views
sara spent $64 on books and towels. she bought three times as many books as towels. how many of each did she buy?*every item is
1. 2 answers
2. asked by humna
3. 1,994 views
a baseball is thrown downward from a 12.5m tower with an initial speed of 4.5m/s. determine the speed at which it hits the
1. 3 answers
2. asked by chanz11
3. 1,963 views
To illustrate the effect of ice on the aluminum cooling plate, consider the data shown in the drawing below.The length of the
1. 2 answers
2. asked by anonymous
3. 1,923 views
This is a joke:What is neck hair on a female deer called?:)
1. 3 answers
2. asked by Just that Awesome
3. 1,775 views
Assume that an average SNMP response message is 100 bytes long. Assume that a manager sends 40 SNMP Get commands each second.
1. 2 answers
2. asked by Bob
3. 1,755 views
traveling with an initial speed of 70km/h. a car accelerates at 6000km/hr^2 along a straight road. how long will it take to
1. 1 answer
2. asked by chanz11
3. 1,578 views
what is the molality of a solution prepared by dissolving 13.0 g of Ba(NO3)2 in 450 g of water?
1. 2 answers
2. asked by Mad
3. 1,488 views
Use the table to identify the relationship of the SECOND sentence to the FIRST sentence.1. A triangle is a right triangle if and
1. 1 answer
2. asked by chino
3. 1,476 views
A cone is inscribed in a sphere with a radius of 5 centimeters.The distance from the center of the sphere to the center of the
1. 1 answer
2. asked by CP
3. 1,422 views
The earliest and most enthusiastic proponents of Manifest Destiny were:A. Investment Bankers B. Eastern Politicians C. Northeast
1. 3 answers
2. asked by Student
3. 1,357 views
the edge of a cube was found to be 18 inches with a possible measurement error of 0.1 find the max possible error in calculating
1. 1 answer
2. asked by angie
3. 1,341 views
Which of the following are examples of inferential statistics?Check all that apply. A.Finding the average (mean) of a set of
1. 2 answers
2. asked by daryl
3. 1,330 views
How many molecules are in 12.2 g NO2?Answer in units of molec
1. 3 answers
2. asked by luke
3. 1,305 views
A spring hanging from the ceiling has an unstretched length of 80 cm. A mass is then suspended at rest from the spring causing
1. 1 answer
2. asked by Anonymous
3. 1,300 views
Calculate the pH of an aqueous solution of 0.15 M potassium carbonate.I know that pH = -log(H30+) but I am not sure how to start
1. 2 answers
2. asked by Hannah
3. 1,267 views
I have a few questions on sentences I wrote last week. Could you please check them?1) In the summary of Gulliver's travels I
1. 1 answer
2. asked by Matthew
3. 1,252 views
a saturated solution of barium chloride at 30C contains 150g water. How much additional barium chloride can be dissolved by
1. 1 answer
2. asked by Ondina
3. 1,239 views
A 9.67-m ladder with a mass of 25.0 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight
1. 1 answer
2. asked by Natasha
3. 1,234 views
Mrs Sim spent some money on 45 buns. She spent the same amount of money on 20 muffins. Each muffin cost $0.95 more than each
1. 2 answers
2. asked by Al
3. 1,233 views
Data from the latest census was analyzed. It was determined that one-parent households spend less on food away from home that do
1. 0 answers
2. asked by Mike
3. 1,204 views
I need help trying to figure out if the sentence is simple or compound;The party, planned at the last moment, was a success.
1. 1 answer
2. asked by please help!!
3. 1,198 views
A 190 kg hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.160 m/s. How much work must be
1. 1 answer
2. asked by Addie
3. 1,194 views
A TV pollster believes that 75% of all TV households would be tuned in to Game 6 of 1997 NBA Championship series between the
1. 0 answers
2. asked by Pat
3. 1,189 views
a scale on a map is 1.5 in. : 200 mi. the map distance from miami to chicago is 9 in. what is the actual distance between the
1. 9 answers
2. asked by marko
3. 1,187 views
Given that the power consumed by a device is 1000 W operating on a 70-V line, calculate the amount of current it draws.
1. 3 answers
2. asked by Kristie
3. 1,179 views
General Mills Warm DelightsTM: Indulgent, Delicious and Gooey! I recommend we all taste test Warm Delights prior to discussing
1. 1 answer
2. asked by Dayi
3. 1,170 views
Company A rents copiers for a monthly charge of $240 plus 8 cents per copy. Company B rents copiers for a monthly charge of $480
1. 1 answer
2. asked by Anonymous
3. 1,169 views
A wave travels along a string at a speed of 1,5m 1s.if the frequency of the source of the wave is 7,5hz,calculate:(a)the
1. 2 answers
2. asked by Brydley
3. 1,155 views
The average hemoglobin reading for a sample of 20 nurses was 16 grams per 100 mL, with a sample standard deviation of 2 g.
1. 0 answers
2. asked by Anonymous
3. 1,147 views
Describe the preparation of 100 mL 0.50 M solution of Fe(NO3)3 from a stock solutiion that is 60%(w/w)Fe(NO3)3 solution with a
1. 1 answer
2. asked by BabyMikee
3. 1,121 views
An SRS of size n is taken from a large population whose distribution of income is extremely right-skewed and the mean income is
1. 1 answer
2. asked by Anna
3. 1,118 views
In what two ways is the word debit defined in Debits and CreditsIn what two ways is the word credit defined in Debits and
1. 0 answers
2. asked by Sandra M
3. 1,106 views
923.85 grams of gaseous ammonia condenses into liquid.How much energy was released?answer: 1268.28852 = 1268 kj
1. 1 answer
2. asked by joseph
3. 1,101 views
Does the Messina Plate (small piece of oceanic crust between the African and Eurasian Plates, near Messina, Italy) still exist
1. 0 answers
2. asked by Barbie
3. 1,077 views
How could crime help private business? Identify 10 industries or companies that could benefit from crime. Are there problems
1. 0 answers
2. asked by sharday
3. 1,075 views
A snail crawled for 40 seconds at an average speed of 15 millimeters per second.Explain how to find the distance the snail
1. 3 answers
2. asked by jacob
3. 1,047 views
Which situations are examples of a particle with a non-zero acceleration? (Select all that are true for full credit.)a)A car
1. 1 answer
2. asked by sally
3. 1,042 views
$1000 in a savings bond on the day you were born. The bond pays 6% interest compounded annually. How much is it worth in 18 yrs?
1. 1 answer
2. asked by Pat
3. 1,034 views
Ice at -10degrees celcius and steam at 130 degrees celcius are brought together at atmospheric pressure in a perfectly insulated
1. 0 answers
2. asked by Elifolet
3. 1,029 views
The focal length of lens is 5.0cm. How far from the lens must the opbject be placed to produce an image 1.5cm from the lens
1. 3 answers
2. asked by !!!!!!! TASHA!!!!
3. 1,022 views
If a turntable rotates through 720 degrees in one second, how many revolutions does it make in one minute.120?
1. 3 answers
2. asked by Jerald
3. 1,018 views
Step 1:H2O2 + I^-^ = H2O + OI^-^step 2: H2O2 + OI^-^ = H2O + O2 + I^-^ What is the equation for the overall reaction? I am not
1. 0 answers
2. asked by Hannah
3. 1,018 views
The general manager for Gordon's Self Service Gasoline is interested in estimating the mean number of gallons of gasoline that
1. 0 answers
2. asked by Melvin
3. 1,015 views
Forty-five-year-old Guy is in his midlife transition. According to Carl Jung, Guy should be in the process of accomplishing
1. 1 answer
2. asked by Rheya
3. 991 views
At 50 degrees, 100 grams of water is saturated with cerium (III) sulfate. How many grams of cerium (III) sulfate must be added
1. 1 answer
2. asked by Sarah
3. 983 views
Complete the work sheet. In completing the worksheet, compute State of Illinois corporate income taxes at 41/2% of pretax
1. 0 answers
2. asked by bakbone
3. 965 views
The entrance fees to the Science centre is as follows:Adult :$ 10 Child :$7 A group package of 1 adult and 2 children can be
1. 2 answers
2. asked by RS
3. 951 views
50 mL of a 2.50 M solution of ammonium phosphate is added to 100mL of a 1.50 M solution of calcium nitrate. At the end of the
1. 0 answers
2. asked by Bleh
3. 942 views
A ferryboat traveling at a speed of 30 km/h attempts to cross a river with a current of 5 km/h. What is the boat's speed
1. 1 answer
2. asked by James
3. 933 views
The height of a parallelogram is 10 feet more than its base. If the area of the parallelogram is 120 square feet, find its base
1. 1 answer
2. asked by Derek
3. 929 views
How was the person that discover cells?
1. 1 answer
2. asked by Jahmere
3. 927 views
two boys paul mass 60kg and john mass 40kg are standing on skateboards. They place their hands against each other and push away
1. 1 answer
2. asked by lebohang
3. 920 views
a particle moves along a straight line such that its position is defined by s=(t^2-3t^2=2)m.determine the average velocity, the
1. 1 answer
2. asked by chanz11
3. 920 views
Evaluate the expression under the given conditions.tan(A+B); cosA=-1/7, A in quadrant 3, sinB=1/2, B in quadrant 2.
1. 1 answer
2. asked by Josh
3. 912 views
Brandon throws a flying disc with a force of 8 N. If the disc has an acceleration of 4 m/s2, what is the mass of the disc?
1. 1 answer
2. asked by john
3. 893 views
how much 10M HNO3 must be added to 1L of a buffer that is .010M acetic acid and .10M sodium acetate to reduce the pH to 5.
1. 1 answer
2. asked by allison
3. 891 views
Solve this equation:√4x+8=6 If there is more then one solution enter with a comma
1. 1 answer
2. asked by Nancy
3. 889 views
Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.7 kg · m2 and an angular velocity of +7.3
1. 1 answer
2. asked by Natasha
3. 889 views
Find the formula mass of the compoundH2SO4. 1. 98.09 amu 2. 96.07 amu 3. 97.08 amu 4. 81.08 amu 5. 89.09 amu
1. 6 answers
2. asked by please help
3. 886 views
The base of a rectangular box is x +2 cm wide and 2x+5 cm long. if the height of the box is x cm, write a polynomial in standard
1. 2 answers
2. asked by bobby
3. 881 views
enrollment in a business seminar increased from 75 to 85 people. what is the persent increase
1. 1 answer
2. asked by shelby
3. 881 views
15y<5
1. 1 answer
2. asked by Courtney
3. 867 views
9/x+5=4/x-3 how do I set this up and work it?
1. 1 answer
2. asked by Susan
3. 864 views
Given cos a=-7/25 in quadrant II , and sin b=-12/13, in quadrant IV , find cos(a+b) and sin2a
1. 3 answers
2. asked by shay
3. 848 views
For my paper I have to write an old story made new and we had to pick one from before the 1900s, so i picked The tortoise and
1. 2 answers
2. asked by Jon
3. 843 views
Evaluate the expression. Assume that all angles are in Quadrant I.14. tan(arccos 3/5)
1. 1 answer
2. asked by missy
3. 840 views
Determine the mass of 7.79 ×1023 atoms Cl.Answer in units of g
1. 1 answer
2. asked by luke
3. 837 views
Brandon throws a flying disc with a force of 8 N. If the disc has an acceleration of 4 m/s2, what is the mass of the disc?
1. 0 answers
2. asked by john
3. 833 views
A spring hanging from the ceiling has an unstretched length of 80 cm. A mass is then suspended at rest from the spring causing
1. 0 answers
2. asked by Anonymous
3. 825 views
use the binomial theorem to expand and simplify (y^2-2)^6 )(y^2+2)^6
1. 1 answer
2. asked by Jaxx
3. 816 views
How has climate affected population patterns in Africa?
1. 1 answer
2. asked by Nicole
3. 813 views
e.g. In 20121. In twenty twelve 2. In two thousand twelve (Can we read either way? Are both readings correct?)
1. 1 answer
2. asked by rfvv
3. 813 views
1.73 revolution per second is equal to X radian per second.What is X?
1. 1 answer
2. asked by Anonymous
3. 795 views
What effects did the Industrial Revolution have on government reforms, and what were the laws that were enacted in Great Britain
1. 3 answers
2. asked by mysterychicken
3. 795 views
what are the five reasons why knowlegde of english language registers is important in accounting and finance?
1. 1 answer
2. asked by tory
3. 793 views
evaluate without using a calculator216 2/3
1. 2 answers
2. asked by Nancy
3. 792 views
Evaluate the expression. Assume that all angles are in quadrant 1.1. cos(arccos4/5)
1. 1 answer
2. asked by missy
3. 790 views
The power of a significance test for a particular value of the parameter is computed to be 0.93. Which statement below is true?a
1. 0 answers
2. asked by Anna
3. 786 views
How would you prepare 50.00 mL of 0.25 Molar NaCl from 2.00 Molar NaCl?
1. 1 answer
2. asked by Lorraine
3. 785 views
A sealed container contains 1 mole of neon gas at STP. Estimate the number of neon atoms having speeds in the range from 200 m/s
1. 2 answers
2. asked by zuhra
3. 778 views

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