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Questions Asked on October 13, 2011

A sled is being held at rest on a slope that makes an angle (theta) with the horizontal. After the sled is released, it slides a
1. 2 answers
2. asked by Mary
3. 7,143 views
Two equal charges are separated by 3.7 x 10^-10 m. The force between the charges has a magnitude of 2.37 x 10^-3 N. What is the
1. 3 answers
2. asked by aichan
3. 6,855 views
five hundred kcal of heat is added to 2-kg of water at 80 degree Celsius. how much steam is produced?
1. 2 answers
2. asked by xam
3. 6,227 views
Write the balanced molecular, complete ionic, and net ionic equations for the followingreactions in aqueous solution: a.
1. 1 answer
2. asked by gold
3. 6,136 views
To the nearest degree, determine the measure of angle X for each value oftan X a. tan X = 0.49 Just not sure how to solve these
1. 2 answers
2. asked by David
3. 5,575 views
spent steam from an electric generating plant leaves the turbines at 120.0 C and is cooled to 90. 0 C liquid water by water from
1. 1 answer
2. asked by doug
3. 4,860 views
At noon, ship A is 110 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 15 km/h. How fast is
1. 5 answers
2. asked by John
3. 4,519 views
in the diagram below of triangle abc, de is a midsegment of triangle abc, de=7, ab=10, and bc=13.find the perimeter
1. 3 answers
2. asked by joe
3. 4,225 views
A car drives up a straight hill at a constantspeed of 60 kilometers per hour. A truck drives over the crest of the hill at a
1. 2 answers
2. asked by Mathew
3. 4,099 views
1. According to the phase diagram for water, how is the state of water determined?a. proceed up a vertical line at any given
1. 1 answer
2. asked by Angel
3. 3,874 views
if a car accelerates from rest at a constant 5.5 m/s^2, how long will it take for the car to reach a velocity of 28 m/s
1. 3 answers
2. asked by ...
3. 3,683 views
The critical angle for a transparent material in air is 30 degrees. The index of refraction of the material is most nearlyA)
1. 1 answer
2. asked by Astrogirl
3. 3,634 views
the height of a rocket above the ground is modelled by the quadratic function h(t)=-4t^2+32ta) how long will the rocket be in
1. 1 answer
2. asked by Melissa
3. 3,470 views
A ball is thrown from the edge of a cliff with an initial velocity of 60·m/s upward. Answer the following questions using +
1. 1 answer
2. asked by jen
3. 3,326 views
If it takes 4.00 J of work to stretch a Hooke's Law spring 10.0 cm from its unstressed length, determine the extra work required
1. 3 answers
2. asked by Whitney
3. 3,172 views
Which virtue on Benjamin Franklin's list do you think is least important?Why?I think that if i had to pick out of the thirteen
1. 5 answers
2. asked by Anonymous
3. 2,970 views
WHAT IS THE RIDDLE TO ALGEBRA WITH PIZZAZZ WORK SHEET 56??
1. 6 answers
2. asked by ANGELO
3. 2,927 views
(1) Attack of the 50ft Turnip plays at 7:10. It isnow quarter to seven. How long before the movie starts? (2) It takes 30
1. 9 answers
2. asked by Little Lisa
3. 2,866 views
How does Franklin's scheme for moral perfection compare with the self-help books available today, in general?Well Franklin's
1. 1 answer
2. asked by Anonymous
3. 2,838 views
you are driving a 2520.0-kg car at a constant speed of 14.0 m/s along a wet, but straight, level road. As you approach an
1. 2 answers
2. asked by James
3. 2,797 views
Acetylene gas, C2H2, is used for welding. A 5-liter supply of acetylene being stored at -23ºC, exerts a pressure of 5 atm. At
1. 2 answers
2. asked by Anonymous
3. 2,659 views
A telemarketing supervisor tells a new worker that the odds of making a sale on a single call are 4 to 15. What is the
1. 1 answer
2. asked by Anonymous
3. 2,648 views
the width of a square-based storage tank is 3m less than its height. The tank has a capacity of 20m^3. If the dimensions are
1. 4 answers
2. asked by justme
3. 2,471 views
what is the moment of interia of a solid cylinder of radius R=0.0950m thickness t=0.015m total mass M=3.565kg? show your work
1. 2 answers
2. asked by Arthur
3. 2,392 views
A golfer takes two putts to get his ball into the hole once he is on the green. The first putt displaces the ball 6.90 m east,
1. 1 answer
2. asked by ashley
3. 2,380 views
A basket contains 11 pieces of fruit: 4 apples, 5 oranges, and 2 bananas. Jonas takes a piece of fruit at random from the
1. 4 answers
2. asked by stephanie
3. 2,308 views
Suppose the force of friction on a sliding object is 25 N. What is the force needed to maintain a constant velocity?
1. 4 answers
2. asked by Michelle
3. 2,034 views
Identify the two conjugate acid-base pairs in each of the following.a.) H2PO4-(aq)+HSO4-(aq) <=> H2PO4(aq)+ SO4^-2(aq) b.)
1. 1 answer
2. asked by shelly
3. 1,899 views
PLEASE LIST ALL 7TH GRADE MATH SYMBOLS!!! PLEASE!!!I NEED THIS ASAP !!! :) THANK YOU!!!!
1. 10 answers
2. asked by Laruen
3. 1,798 views
Using each of the following scales, find the dimensions in a blueprint of an 8ft-by-12ft room.1. 1 in.:2ft 2. 1 in.:4ft
1. 2 answers
2. asked by Brianna
3. 1,767 views
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
1. 1 answer
2. asked by Colin
3. 1,729 views
Which of the following are characteristics of allegory?A. Immitation B. Humor C. Didacticism D. Spiral Plot C. Music
1. 2 answers
2. asked by Britt
3. 1,712 views
How do I use an array to find partial products for 4x36?
1. 4 answers
2. asked by acid burn
3. 1,680 views
A scientist wants to make a solution of tribasic sodium phosphate, , for a laboratory experiment. How many grams of will be
1. 3 answers
2. asked by Maddy
3. 1,648 views
A phone company charges $27.95 monthly fee and .12/min. for local calls. Another phone company charges $12.95 a month and
1. 3 answers
2. asked by Sondra
3. 1,619 views
I'm stuck on to stupid questions tell me the answer ok worry haunted the refugee ____ eyes a.childrens b children's c.childrens'
1. 21 answers
2. asked by Tttttttt
3. 1,546 views
Calculate:what is the density of a metal block that has a mass of 750 grams and a volume of 55 cubic centimeters?
1. 5 answers
2. asked by Faith
3. 1,505 views
The time in hours it takes a satellite to complete an orbit around the earth varies directly as the radius of the orbit (from
1. 2 answers
2. asked by Ty
3. 1,451 views
A trough is 16 ft long and its ends have the shape of isosceles triangles that are 5 ft across at the top and have a height of 1
1. 1 answer
2. asked by Jack
3. 1,446 views
A race car enters a flat 200 m radius curve at a speed of 20 m/swhile increasing its speed at a constant 2 m/s2. If
1. 1 answer
2. asked by holt
3. 1,433 views
What is the standard deviation of a normal distribution, whose mean is 35, in which an x-value of 23 has a z-score of -1.63?
1. 1 answer
2. asked by Becky
3. 1,391 views
Explain how music and culture influence one another. Provide an example of a song or album that affected culture. Provide
1. 1 answer
2. asked by Samantha
3. 1,377 views
As a system increases in volume, it absorbs 52.5 J of energy in the form of heat from the surroundings. The piston is working
1. 1 answer
2. asked by Sam
3. 1,369 views
A cart loaded with bricks has a total mass of 13.5 kg and is pulled at constant speed by a rope.The rope is inclined at 27.9
1. 2 answers
2. asked by Saumya
3. 1,368 views
A child of mass m sits in a swing supported by two chains, each of length R. The tension in each chain at the lowest point is T.
1. 2 answers
2. asked by Kari
3. 1,338 views
A ball thrown horizontally at 22.3 m/s from the roof of a building lands 31.0 m from the base of the building. How high is the
1. 1 answer
2. asked by Millie
3. 1,329 views
A shot-putter throws the shot ( mass = 7.3 kg) with an initial speed of 15.0 m/s at a 33.0 degreCalculate the horizontal
1. 1 answer
2. asked by Emma
3. 1,295 views
Perform the indicated operation and, if possible, simplify. Please show all of your work. Write your final answer exactly as a
1. 3 answers
2. asked by Anonymous
3. 1,287 views
What equation is the rotational equilvalent of newton's law ? give the meaning of each symbol and state which rotational
1. 1 answer
2. asked by leslie
3. 1,285 views
The world's oldest recognized monarchy is found in _____.a. Kush b. Egypt c. Nubia
1. 6 answers
2. asked by Angel
3. 1,252 views
A cube of gold has a side length .050m. The mass of the cube is 2.40kg. What is the density of gold in g/cm cubed?
1. 1 answer
2. asked by caitlyn
3. 1,226 views
The laboratory technician accidentally mixed NaHCO3 with BaCl2*2H2O instead of KCl when preparing unknown mixtures for this
1. 2 answers
2. asked by Gary
3. 1,215 views
1. According to the phase diagram for water, how is the state of water determined?a. proceed up a vertical line at any given
1. 0 answers
2. asked by Angel
3. 1,202 views
Which one of the following lines best illustrates personification?A. A narrow wind complains all day. B. The fog comes on little
1. 2 answers
2. asked by Linda
3. 1,188 views
Find the x and y intercepts of f(x)=x^2-x-6.
1. 5 answers
2. asked by Nadia
3. 1,176 views
A 5 kg block is pulled along a horizontal frictionless floor by a string and exerts force of magnitude 16 N at an angle 30
1. 0 answers
2. asked by Leonita
3. 1,169 views
Balancing chemistry equations and need help! Thank You!?Help balancing any of the following equations: Cl2+Na Br----> NaCl2 + Br
1. 1 answer
2. asked by Ginger
3. 1,153 views
The earth orbits the sun once every 365.24 days. The distance between the earth and sun is 1.49x 10^8 Km. The mass of the earth
1. 0 answers
2. asked by ED
3. 1,145 views
What is the purpose of division of polynomials?
1. 1 answer
2. asked by Rebecca
3. 1,138 views
Determine the mass of KHP (molar mas = 204.2 g/mol) that is required to react with 30.0 mL of 1.0 M Na0H (molar mass 40.0
1. 1 answer
2. asked by chris
3. 1,136 views
Two boxes of masses 21.6 kg and 28.2 kg sit on a smooth, frictionless surface. The boxes are in contact, and a horizontal force
1. 1 answer
2. asked by Tina
3. 1,129 views
Hello, im having major issues with this problem...I need to find a pH for a 100.0-mL solution of 0.017 M CH3COOH (Ka = 1.8 10-5)
1. 1 answer
2. asked by A person
3. 1,127 views
Use the table below to find the products of the two polynomials. Enter your answer in descending order in the box below. Enter
1. 5 answers
2. asked by sam
3. 1,115 views
Solution A is 25% and solution B is 40% acid. How many gallons of each solution must be used in order to create a 50 gallon
1. 2 answers
2. asked by Diane
3. 1,113 views
Calculate [H3O+] and [OH-] in 0.22M KOH(aq)
1. 1 answer
2. asked by Shellu
3. 1,110 views
Pick the correct answer which corrects the underlined portion of the following sentences in the simplest way possible – for
1. 3 answers
2. asked by ME
3. 1,109 views
How do I cite an in- text citation in mla format that has more than 3 authorsdo I list all the authors and how will this ciation
1. 2 answers
2. asked by kate
3. 1,102 views
The density of dry air measured at 25 degrees celsius is 1.19 x 10 to the negative 3 g/cm cubed. What is the volume of 50.0g of
1. 2 answers
2. asked by Jasmine
3. 1,099 views
What mass of CO2, a greenhouse gas, is produced per liter of each fuel (assuming complete combustion)I got this data density of
1. 1 answer
2. asked by sari
3. 1,085 views
Only two forces act on an object (mass = 4.20 kg), as in the drawing. (F = 73.0 N.) Find the magnitude and direction (relative
1. 1 answer
2. asked by Taylor
3. 1,081 views
he owners of a two-person business make their decisions independently of each other and then compare their decisions. If they
1. 1 answer
2. asked by Amy
3. 1,078 views
If f and g are inverse functions, f (7) =10 and f (10) = −1 , find g(10).
1. 1 answer
2. asked by Caprice
3. 1,075 views
Calculate [H3O^-] in a 0.15M solution of benzoic acid, HC7H5O2(aq) having a Ka of 6.4 x 10^-5I got. 6.4x10^-5=(x)(x)/0.15
1. 1 answer
2. asked by shelly
3. 1,057 views
Is HOCl(aq) a polyprotic acid? Explain
1. 1 answer
2. asked by mike
3. 1,048 views
A farmer wishes to enclose a rectangular pen with area 100 square feet next to a road. The fence along the road is to be
1. 3 answers
2. asked by Andres
3. 1,030 views
A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20
1. 3 answers
2. asked by Jennifer
3. 1,028 views
A student reacts 0.1212 g of an Mg/NaCl mixture with hydrochloric acid. The volume of hydrogen saturated with water vapor
1. 2 answers
2. asked by Duane
3. 1,007 views
In the sentence....They have done nothing wrong. I know "have done" is part of the verb phrase but not sure if "wrong" is part
1. 1 answer
2. asked by Brandi
3. 992 views
Hello! :-) Can some please explain to me or provide a website that has information about graphs and how to use them? Thanks!Hell
1. 6 answers
2. asked by Hello Kitty
3. 991 views
how has workng together changed history?
1. 2 answers
2. asked by allison
3. 987 views
Find the measure of feta, to the nearest degree where o degrees is less than feta which is less than 360 degrees.6 sin feta = -1
1. 1 answer
2. asked by -Untamed-
3. 956 views
A gun is fired at a bird sitting on a distant tree.If the barrel of the gun is aimed directly at the bird,will the bullet
1. 0 answers
2. asked by Leonita
3. 953 views
Round 50.4 square miles to the nearest Square mile
1. 3 answers
2. asked by J
3. 942 views
A man is driving his car ata velocity of 100km/h on a straight road. H e sees a traffic jam at a distance and slows down to
1. 1 answer
2. asked by ted
3. 920 views
for what value of m, x4+4x2+m+8/x2+4/x4 is a complete square where x is not equal to 0
1. 1 answer
2. asked by ayisha
3. 917 views
Choose the word in the following sentences that is grammatically incorrect:1. Lisa enjoys meeting men who are very intelligent
1. 4 answers
2. asked by ME
3. 915 views
Carrie is being held by her father. She is smiling at him one minute and then, unexpectedly, she slaps his face. This is a sign
1. 1 answer
2. asked by dianah
3. 915 views
1. If they failed to light the lanterns, they were fined heavily.2. If they failed to light the lanterns, they would be fined
1. 1 answer
2. asked by rfvv
3. 903 views
Write two types of philosophy?
1. 1 answer
2. asked by Philosophy
3. 903 views
A bus that is traveling at 30.0 km/h speeds up at a constant rate of 3.5 m/s^2. what velocity does it reach 6.8 seconds later?
1. 0 answers
2. asked by ...
3. 895 views
what is the landmarks of newjersey?
1. 1 answer
2. asked by Justin
3. 893 views
1. Reading is essential for becoming a savvy member of one's community, and writing is essential for expressing one's viewpoint
1. 4 answers
2. asked by ME
3. 892 views
The leg and cast weigh 200 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1
1. 1 answer
2. asked by Diana
3. 887 views
what is the length of CE if DC=5x-24, CE= 6x-20, and DE= 55?
1. 1 answer
2. asked by Ciara
3. 877 views
If a coordinate system is set up such that the positive x axis points in a direction 75° above the horizontal, what should be
1. 1 answer
2. asked by James
3. 875 views
What are the sentence structure rules for the Japanese language?I know you have the sentence -> (noun phrase) (verb phrase)
1. 1 answer
2. asked by Sam
3. 869 views
FeS2 (s) + O2(g) -----> SO2(g) +Fe203(s) (unbalanced)a production error leads to the sulfide being placed in a 950-L vessel with
1. 0 answers
2. asked by tori
3. 864 views
suppose an experimental arrangement like the one in part 2 has mass m1= 0.200kg at the 0.100m mark and a mass m2=0.100 kg at
1. 0 answers
2. asked by Matthew
3. 861 views
1) Attack of the 50ft Turnip plays at 7:10. It isnow quarter to seven. How long before the movie starts? (2) It takes 30 minutes
1. 2 answers
2. asked by Little Lisa
3. 859 views
The production process of computer parts uses two machines one old & one new. If the old machine is used the probability that
1. 1 answer
2. asked by Erica
3. 859 views

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