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Questions Asked on October 20, 2013

on a farm, there are some cows and some chickens. if the animals have a total of 40 heads and 112 legs, how many cows are there?
1. 9 answers
2. asked by milly
3. 8,830 views
5.34g of salt of formula M2SO4 (M is a metal)were dissolved in water. The sulfate ion was precipitated by adding excess barium
1. 1 answer
2. asked by Ben
3. 3,869 views
Trini adds 10g of baking soda to 100g of vinegar. The mixture begins to bubble. When the bubbling stops, trini finds the mass of
1. 5 answers
2. asked by Jessica
3. 3,661 views
Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s1.A. What is the symbol for
1. 1 answer
2. asked by Kristen
3. 2,932 views
naomi macy and sebastian have 234 stamps in all. naomi gives 16 stamps to macy and 24 stamps to sebastian. naomi then has 3
1. 8 answers
2. asked by milly
3. 2,801 views
what is the scale factor of ~1 inch= 3 feet please explain!
1. 7 answers
2. asked by Anonymous
3. 2,579 views
Vanessa can swim 3.0 m/s in still water. While trying to swim directly across a river from west to east, Vanessa is pulled by a
1. 2 answers
2. asked by Kailey
3. 2,398 views
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the
1. 1 answer
2. asked by Laura
3. 2,356 views
consider a system consisting of 2.0mol co2(g) initially at 25c and 10atm and confined to a cylinder of cross section 10.0cm2. it
1. 1 answer
2. asked by susie
3. 2,023 views
A solution of NaOH(aq) contains 5.2 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25
1. 2 answers
2. asked by Homework help
3. 1,917 views
a group of people pays $720 for admission tickets to an amusement park the price of an adult ticket is $15, and a child ticket
1. 5 answers
2. asked by naomi
3. 1,813 views
Scientific investigations involve many steps and processes. Which characteristics define a laboratory experiment?A. hypothesis,
1. 7 answers
2. asked by Anne
3. 1,807 views
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the
1. 1 answer
2. asked by Laura
3. 1,735 views
a tank and a pail contain a total of 5,136 milliliters of water. jacob pours 314 milliliters of waster from the pail into the
1. 3 answers
2. asked by naomi
3. 1,596 views
Jane claimed that a number is divisible by 4 if each of the last two digits is divisible by 4. Is this claim accurate? If not,
1. 1 answer
2. asked by Trudy
3. 1,533 views
Astrologers relate the location of stars and planets to events in human lives. Many years ago, people classified astrology as a
1. 1 answer
2. asked by Anne
3. 1,400 views
Which of the following is an example of how economics can affect science?A. Limited funding may lead scientists to research one
1. 3 answers
2. asked by Jessica
3. 1,384 views
Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p3.A. What is the symbol for this
1. 2 answers
2. asked by Joe
3. 1,340 views
what is the measure of an angle that is supplementary to the following angle.An Acute angle of 57º 57º+90º= Answer 147º
1. 2 answers
2. asked by Gio
3. 1,328 views
If 4.02 grams of a hydrate of magnesium sulfate loses 2.06 grams of water when heated, what is the formula for the hydrate
1. 1 answer
2. asked by Anonymous
3. 1,328 views
if air contains78% of nitrogen by volume what is the solubility nitrogen in water at 25 degree celcius?
1. 7 answers
2. asked by minte
3. 1,318 views
A magnet was placed near a pile that contained both iron and sulfur. The magnet was moved gradually closer to the pile. As it
1. 1 answer
2. asked by Brianna
3. 1,295 views
Please check my answers1. During puberty, boys testosterone production increases up to 5 times the level in childhood? True 2.
1. 1 answer
2. asked by Lisa
3. 1,293 views
Bungee Jumping.A bungee jumper jumps from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L.
1. 1 answer
2. asked by Anonymous
3. 1,288 views
A sociologist is interested in the relations between x=number of job changes and y=annual salary (in thousands of dollars) for
1. 1 answer
2. asked by Amanda
3. 1,254 views
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows: 31 said
1. 2 answers
2. asked by Jodie
3. 1,245 views
A charged rod of length 21cm and total charge -7.5muC is bent into a three-quarter circle symetric about the x-axis as shown
1. 2 answers
2. asked by nisha
3. 1,225 views
For the diprotic weak acid H2A, Ka1 = 2.2 × 10-5 M and Ka2 = 7.8 × 10-7 M. What is the pH of a 0.0650 M solution of H2A? What
1. 1 answer
2. asked by Homework help
3. 1,198 views
Maria is standing 4.5 meters from the tennis net. She hits the ball horizontally with a velocity of 18.0 m/s from a height of
1. 1 answer
2. asked by farnell
3. 1,193 views
The fizz produced when an alka-seltzer tablet is dissolved in water is due to the reaction between sodium bicarbonate and citric
1. 1 answer
2. asked by Lu
3. 1,134 views
As a tennis ball is struck, it departs from the racket horizontally with a speed of 27.1 m/s. The ball hits the court at a
1. 1 answer
2. asked by victoria C!!
3. 1,128 views
Water freezes at 0 Celisus. If a temperature drop is causing a glass of water to freeze, how would a thermometer in the water
1. 6 answers
2. asked by Anne
3. 1,075 views
Consider problem U concerning the geosynchronous satellite of mass 50 kg. It orbits at a radius of 42,300 km with a speed of
1. 0 answers
2. asked by Eli Smith
3. 1,058 views
For the diprotic weak acid H2A, Ka1 = 2.2 × 10-5 M and Ka2 = 7.8 × 10-7 M. What is the pH of a 0.0650 M solution of H2A? What
1. 1 answer
2. asked by Homework help
3. 1,050 views
Even if you can help answer one that would be a great help!1. How many liters of NO(g) are produced when 0.85L of 2.00M HNO3
1. 3 answers
2. asked by P.
3. 1,049 views
Describe at least two alternatives to oil that are currently available and discuss the barriers that keep these alternatives
1. 1 answer
2. asked by Anonymous
3. 1,047 views
Which of the following is not true of parenthetical elements?A. The information they supply is necessary for the sentence to
1. 4 answers
2. asked by Cassie
3. 986 views
One end of a cord is fixed and a small 0.270-kg object is attached to the other end, where it swings in a section of a vertical
1. 1 answer
2. asked by <3
3. 978 views
The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest
1. 1 answer
2. asked by Abena
3. 967 views
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity
1. 0 answers
2. asked by Anonymous
3. 967 views
a solid of density 5000 kgf weights0.5 kgf in air . it is completely immersed in water of density 1000 kg m-3.calculate the
1. 0 answers
2. asked by ASTINA
3. 966 views
Verify the given linear approximation ata = 0. Then determine the values of x for which the linear approximation is accurate to
1. 1 answer
2. asked by brian
3. 963 views
so my intervention is how i'm going to reduce air pollution like convincing people to walk and ride bikes etc. and then how
1. 6 answers
2. asked by Reina B.
3. 950 views
"two other projects that are either similar to your intervention or address a similar issue. remember to relate these projects
1. 10 answers
2. asked by Reina B.
3. 949 views
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity
1. 0 answers
2. asked by Anonymous
3. 917 views
2(x+3)=-4(x+1) my answer is 5/3 am i right?
1. 1 answer
2. asked by Anonymous
3. 898 views
Choose from the list the correct electron configurations for the following ions.A B C D E F G H I J K+ A B C D E F G H I J In+ A
1. 1 answer
2. asked by sara
3. 880 views
A perforated bead of mass 37g moves on a frictionless horizontal circular track of radius R=0.65m. The track runs through the
1. 1 answer
2. asked by Anonymous
3. 851 views
A 0.245kg ball is thrown straight up from 2.20m above the ground. Its initial vertical speed is 8.80m/s. A short time later, it
1. 1 answer
2. asked by Kristen
3. 846 views
Why is the copper/ sulfur mass ratio different from the mole ratio
1. 1 answer
2. asked by Anonymous
3. 818 views
What is the percentage of immigrants living here in the U.S. legally? Of these people, how many are naturalized? I've tried
1. 0 answers
2. asked by Chipe Martinez
3. 795 views
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity
1. 4 answers
2. asked by Anonymous
3. 781 views
There are 22 gloves in a drawer. 5 brown pair, 4 green pair, and 2 blue pair. If you had the reach into the drawer and it was
1. 2 answers
2. asked by Rachel
3. 770 views
together, tom and max have 72 football cards.Tom has 2 more than 4 times as many cards as Max has. How many football cards does
1. 3 answers
2. asked by lana
3. 764 views
if 2.0 grams of sodium sulfate are mixed with 2.0 grams of calcium chloride to produce calcium sulfate as a precipitate, which
1. 1 answer
2. asked by Anonymous
3. 751 views
What actions were taken by the first continental congress and what actions were taken by the second continental congress in
1. 2 answers
2. asked by Anonymous
3. 733 views
For the diprotic weak acid H2A, Ka1 = 2.2 × 10-5 M and Ka2 = 7.8 × 10-7 M. What is the pH of a 0.0650 M solution of H2A? What
1. 1 answer
2. asked by D.C.
3. 733 views
A university has 1000 computers available for students to use. Each computer has a 250 gigabyte hard drive. The university wants
1. 1 answer
2. asked by Anonymous
3. 723 views
For the diprotic weak acid H2A, Ka1 = 2.2 × 10-5 M and Ka2 = 7.8 × 10-7 M. What is the pH of a 0.0650 M solution of H2A? What
1. 1 answer
2. asked by D.C.
3. 704 views
A particle of mass m = 27 g slides inside a bowl whose cross section has circular arcs at each side and a flat horizontal
1. 1 answer
2. asked by Lilian
3. 689 views
Find the sum of the squares of the deviations from the mean of a series of ACT scores: 24,17,27,25,22
1. 1 answer
2. asked by Tay
3. 683 views
7/x+5/3x=2/x-5so lcm=3x(x-5) 21(x-5)+5(x-5)=5x 21x-105+5x-25=5x 26x-130=5x -26x to both sides -130=-21x divide each side by -21
1. 5 answers
2. asked by B8
3. 675 views
Consider problem U concerning the geosynchronous satellite of mass 50 kg. It orbits at a radius of 42,300 km with a speed of
1. 0 answers
2. asked by Eli Smith
3. 672 views
Vanessa can swim 3.0 m/s in still water. While trying to swim directly across a river from west to east, Vanessa is pulled by a
1. 1 answer
2. asked by Kailey
3. 662 views
For the diprotic weak acid H2A, Ka1 = 2.2 × 10-5 M and Ka2 = 7.8 × 10-7 M. What is the pH of a 0.0650 M solution of H2A? What
1. 1 answer
2. asked by D.C.
3. 660 views
what are welfare payments
1. 1 answer
2. asked by sandiswa
3. 657 views
A stone is thrown in a vertically upward direction with a velocity of 5 m s -1 . If the acceleration of the stone during its
1. 1 answer
2. asked by Maihul
3. 653 views
A garden fertilizer contains 15% by mass of nitrogen. The recommended usage is 30g of fertilizer per 10dm^3 of water. What is
1. 1 answer
2. asked by Claudia
3. 651 views
States. We are living in a same society but some people tend to be healthy and some tend to be less healthy. Many factors
1. 1 answer
2. asked by sham
3. 651 views
A cannon is fired from a cliff top 15m high and at 30 degrees. It takes 3 seconds for canon to reach the earth, what is the
1. 1 answer
2. asked by Lorna
3. 650 views
For the diprotic weak acid H2A, Ka1 = 2.2 × 10-5 M and Ka2 = 7.8 × 10-7 M. What is the pH of a 0.0650 M solution of H2A? What
1. 1 answer
2. asked by D.C.
3. 650 views
Stella brought 3/8 of a pound of grapes and ate 1/3 of the grapes.How muchdid she eat?
1. 2 answers
2. asked by anonymous
3. 647 views
single celled prokaryotes like the bacteria and archaea are the dominant and most diversified groups of living forms today. does
1. 0 answers
2. asked by student
3. 638 views
A constant force of 35.9 N, directed at 28.7o from horizontal, pulls a mass of 14.7 kg horizontally a distance of 3.41 m.
1. 1 answer
2. asked by Kristen
3. 634 views
A solution of NaOH(aq) contains 5.2 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25
1. 2 answers
2. asked by Homework help
3. 618 views
A 710 gram block is released from a height h above an ideal spring of spring constant 400 N/m. The block sticks to the spring,
1. 0 answers
2. asked by Anonymous
3. 617 views
I need help understanding how to differentiate between isomers and resonance structures in skeletal structures.Specifically,
1. 0 answers
2. asked by Bill
3. 598 views
What object would you write this poem on and why?The Secrets We Hide © Tiffany Franklin we struggle to have meaning in this
1. 1 answer
2. asked by Margarita
3. 597 views
A constant force of 58.3 N, directed at 31.7 degrees form horizontal, pulls a mass of 11.9 kg horizontally a distance of 2.77 m.
1. 1 answer
2. asked by Lara
3. 594 views
A baseball of mass 0.13 kg, moving horizontally with a momentum of 4 kg¡Pm/s, is struck head-on by a baseball bat with an
1. 0 answers
2. asked by anonymous
3. 593 views
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm.(a)
1. 0 answers
2. asked by rabio
3. 592 views
A 5000kg truck is being pulled up a 15 degree ramp by a cable which is parallel to the surface of the ramp. If the coefficient
1. 2 answers
2. asked by chuck
3. 589 views
A 6 kg rifle is used to fire a 9 g bullet, which travels with a speed of 700 m/s.(a) What is the speed of recoil of the rifle?
1. 0 answers
2. asked by anonymous
3. 577 views
A skier skis from rest from a vertical height h1 = 19.1 m over two successively lower hills of vertical heights h2 = 15 m and h3
1. 0 answers
2. asked by webassign
3. 572 views
4. Which of the following sentences contains a comma splice?A.The kitten climbed the drapes, it couldn't figure out how to get
1. 4 answers
2. asked by Cassie
3. 571 views
ms. sue can you answer my question
1. 25 answers
2. asked by Reina B.
3. 567 views
Why is a coyote a poor indicator speciesWhat natural zone are each of these cities or areas in? Los Angeles, Palm Springs, Santa
1. 1 answer
2. asked by s
3. 565 views
Suppose you and a friend each take different random samples of data pairs (x,y) from the same population. Assume the samples are
1. 1 answer
2. asked by Trish
3. 564 views
A 5000kg truck is being pulled up a 15 degree ramp by a cable which is parallel to the surface of the ramp. If the coefficient
1. 1 answer
2. asked by chuck
3. 562 views
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity
1. 0 answers
2. asked by Anonymous
3. 562 views
Why do the passengers in high- altitude jet planes feel the sensation of weight while passengers in the International Space
1. 0 answers
2. asked by bbragg
3. 551 views
A farmer has 12000m roll of fencing. He wants to make 2 paddocks by splitting a rectangle enclosure in half. What are the
1. 1 answer
2. asked by RHINO
3. 543 views
a. Critical Thinking Critical Thinking Suppose you and a friend each take different random samples of data pairs (x,y) from the
1. 1 answer
2. asked by Amanda
3. 543 views
why is the copper/sulfur mass ratio different from the mole ratio?
1. 0 answers
2. asked by Katie
3. 542 views
Would you expect to find the humid transitional zones on the coast or inland? Northern or Southern part of California?
1. 3 answers
2. asked by sasha
3. 542 views
How is the declaration related to John Locke's idea of the social contract?
1. 1 answer
2. asked by Anonymous
3. 535 views
For citing using the Turabian or Chicago format, do you have to put a subscript and a footnote at the end of every sentence? If
1. 1 answer
2. asked by Serena
3. 535 views
What natural zone are each of these cities or areas in? Los Angeles, Palm Springs, Santa Monica Mountains, Catalina, San
1. 1 answer
2. asked by Sasha
3. 534 views
-3.5,-3,-v3,1,0,2/9,v5,15.3,18 my teacher said to write which ones are natural, rational, whole, integers, irrational, & real
1. 1 answer
2. asked by Anonymous
3. 533 views
What does m equal? M*10-m*13=138
1. 2 answers
2. asked by Shohanur
3. 518 views

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