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Questions Asked on November 7, 2010

Plese tell me if these are right.A 15.0-mL sample of NaCl solution has a mass of 15.78g. After the NaCl is evaporated to
1. 3 answers
2. asked by Jason
3. 13,803 views
what are some poetic devices used in the following poem?"Mending Wall" by Robert Frost Something there is that doesn’t love a
1. 10 answers
2. asked by Rebecca
3. 7,928 views
If you add 5.0 mL of 0.50 M NaOH solution to 20.0 mL to Buffer C, what is the change in pH ofthe buffer? (where buffer C is
1. 3 answers
2. asked by Chelsea
3. 5,852 views
A culture of bacteria in a petri dish is doubling every hour. If there are 100 bacteria at time t=0, how many bacteria will
1. 5 answers
2. asked by Anonymous
3. 5,773 views
three different liquids are used in a manometer.(a) derive an expression for P1-P2 in terms of ro(a), ro(b), ro(c), h1, and h2
1. 3 answers
2. asked by Marissa
3. 5,272 views
A girl is flying a kite at a height of 320 ft. If the wind blows the kite horizontally at a rate of 15 feet per second away from
1. 3 answers
2. asked by Naz
3. 3,998 views
Two roads intersect at right angles. At a certain moment, one bicyclist is 8 miles due NORTH of the intersection traveling
1. 3 answers
2. asked by Nel
3. 3,866 views
Two sides of a triangle have the same length. The third side measures 4 meters less than twice the common length . The perimeter
1. 2 answers
2. asked by Joel
3. 2,522 views
What is the wavelength of the transition from n = 2 to n = 1 for Li2+? Li2+ is a hydrogen-like ion. Such an ion has a nucleus of
1. 1 answer
2. asked by Emily
3. 2,484 views
Let F be the function defined by F(X)=12X to the 2/3 power minus 4X Find the intervals of which F is increasing? Find X & Y
1. 2 answers
2. asked by Alex
3. 2,380 views
a ball is thrown horizontally from a hill 29.0m high at a velocity of 4.00m/s. find the distance between the base of the hill
1. 1 answer
2. asked by Anonymous
3. 2,219 views
Find the dimensions of the right circular cylinder of greatest volume which can be inscribe in a right circular cone with radius
1. 2 answers
2. asked by daan
3. 2,107 views
Consider the reaction2 Al2O3(s) -> 4 Al(s) + 3 O2(g) . �H = +3339.6 kJ/mol What is the change in heat when 0.455 L of a 3.60 M
1. 2 answers
2. asked by Beth
3. 2,105 views
Air bags are activated when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap.
1. 2 answers
2. asked by Justin
3. 2,092 views
A cue ball traveling at 4.0 m/s makes a glancing, elastic collision with a target ball of equal mass that is initially at rest.
1. 1 answer
2. asked by Amy
3. 2,073 views
A 10.0-L stainless steel container was charged with 2.00 atm of hydrogen gas and 3.00 atm of oxygen gas. A spark ignited the
1. 1 answer
2. asked by Anonymous
3. 2,035 views
The rate of effusion of a particular gas was measured and found to be 23.0 mL/min. Under the same conditions, the rate of
1. 1 answer
2. asked by Anonymous
3. 1,995 views
What is the net force of a 4.0N force and 8.0N force acting on an object in opposite directions?
1. 1 answer
2. asked by leisha
3. 1,983 views
Light with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron
1. 1 answer
2. asked by Emily
3. 1,967 views
Write the following logarithmic equation in exponential form?1- log0.001 = -3
1. 2 answers
2. asked by DAVE
3. 1,823 views
A man doing push-ups pauses in the position shown in the figure . His mass = 68 kg.Image:
1. 1 answer
2. asked by Nicole
3. 1,780 views
After t years, the value of a car that originally cost $16,000 depreciates so that each year is is worth 3/4 of it's value for
1. 2 answers
2. asked by Chelsea
3. 1,724 views
Based on the balanced equation,C2H4 + 3O2 → 2CO2 + 2H2O calculate the molecules of H2O formed when 135 molecules of O2 are
1. 1 answer
2. asked by Marissa
3. 1,661 views
can you help me through this?A boat moves through a river at 7.0 m/s relative to the water, regardless of the boat's direction.
1. 1 answer
2. asked by Maria
3. 1,657 views
A student conducts an experiments to determine the enthalpy of neutralization for phosphoric acid reacting with sodium
1. 1 answer
2. asked by Beth
3. 1,642 views
The energy change �H associated with thereaction NBr3(g) + 3H2O(g) -> 3HOBr(g) + NH3(g) is +81 kJ/mol rxn. These bond energy
1. 2 answers
2. asked by Beth
3. 1,595 views
A compound has the empirical formula CHCl. A 256 mL flask, at 373 K and 750. torr, contains 0.800 g of the gaseous compound.
1. 1 answer
2. asked by Justin
3. 1,528 views
how to solve this:what is the largest rectangular area that can be enclosed with 400 ft of fencing? What are the dimensions of
1. 1 answer
2. asked by Amy
3. 1,470 views
A mass m is attached to the end of a spring (constant k). The mass is given an initial displacement x0 from equilibrium, and an
1. 2 answers
2. asked by Lily
3. 1,447 views
identify the three domains of development,describe why it is important to consider each domain in the study of adult
1. 2 answers
2. asked by tee
3. 1,442 views
how much work is required to lift a 98-N block of ice ifA) it is lifted a vertical distance of 5-m.? B) you push the same block
1. 1 answer
2. asked by Tyler
3. 1,360 views
A 5.00 kg ball (ball 1), moving to the right at a velocity of +4.00 m/s on a frictionless table, collides head-on with a
1. 3 answers
2. asked by dan
3. 1,340 views
The two forces F1 and F2 act on a 27-kg object on a frictionless tabletop. If F1 = 7.1 N and F2 = 33 N, find the net force on
1. 2 answers
2. asked by aNGEl
3. 1,309 views
A cue ball traveling at 4.0 m/s makes a glancing, elastic collision with a target ball of equal mass that is initially at rest.
1. 0 answers
2. asked by Amy
3. 1,304 views
what is the fact of Each European gropup that set up colonies settled in a specific part of the Americas.
1. 3 answers
2. asked by angel
3. 1,286 views
A loaf of bread weighs 3.9 N on earth. What should it weigh, in newtons, on the moon, where the acceleration due to gravity is
1. 0 answers
2. asked by Sabrina
3. 1,283 views
The demand function for a product is modeled by :p=10,000(1-(3/3+e^-0.001x) Find the price of the product if the quantity
1. 0 answers
2. asked by Tyler
3. 1,264 views
Volunteers who had developed a cold within the previous 24 hours were randomized to take either zinc or placebo lozenges every 2
1. 1 answer
2. asked by Anonymous
3. 1,248 views
a pieces of metal of mass 3.6kg is suspended from a spring balance, what is the reading of spring balance in newton, with a
1. 4 answers
2. asked by fola
3. 1,234 views
Who was the unions general?Ulysses S. Grant Who was the main general for the Confederacy? Robert E. Lee Who was president of the
1. 2 answers
2. asked by Erin
3. 1,204 views
"the summer people" by Shirley JacksonHow does the use of dialect separate the allisons from the townspeople?
1. 1 answer
2. asked by Chey
3. 1,177 views
A mechanic pushes a 2,500 kg car from rest to a speed v, with 5000J of work. During this process the car moves 25m. Neglecting
1. 1 answer
2. asked by Luz
3. 1,174 views
two ropes attached to I beam (mass 500 kg). ropes make angles of 60 degrees with horizontal. Determine tension in each rope
1. 1 answer
2. asked by Anonymous
3. 1,165 views
How much work is required to stop an electron (m = 9.11*10^-31 kg) which is moving with a speed of 1.50×106 m/s?
1. 1 answer
2. asked by Emma
3. 1,160 views
An escalator is 15.0 m long. If a person stands on the escalator, it takes 38.0 s to ride from the bottom to the top.(a) If a
1. 1 answer
2. asked by Kelly
3. 1,156 views
Can you tell if I'm correct. Which combination in titration has ph=pka and buffer regionstrong acid-strong base- no to both
1. 0 answers
2. asked by poet
3. 1,153 views
suppose you exert 150N on your refrigerator and push it across the kitchen floor at constant velocity.a. is the friction force
1. 1 answer
2. asked by Anonymous
3. 1,140 views
I have to do some research of the poor in the Victorian Era. These are some things that I have to look for:1. What kinds of
1. 7 answers
2. asked by Anya
3. 1,113 views
A chemist weighed out 5.31 g of a mixture containing unknown amounts of BaO(s) and CaO(s) and placed the sample in a 1.50 L
1. 6 answers
2. asked by Anonymous
3. 1,090 views
Solve & plot a graph for the following: F(X)=cos(X)-cos to second power X for the interval negative pi greater than or equal to
1. 0 answers
2. asked by Alex
3. 1,080 views
The sphereflake shown (not shown for question) is a computergenerated fractal that was created by Eric Haines. The radius of the
1. 2 answers
2. asked by Tony
3. 1,067 views
A man doing push-ups pauses in the position shown in the figure . His mass = 68 kg.Determine the normal force exerted by the
1. 1 answer
2. asked by Nicole
3. 1,058 views
I'm a seventh grade student, I'm having a hard time trying to understand how to do nth term, where n represents the position of
1. 0 answers
2. asked by Jay
3. 1,053 views
Write an essay comparing Baldwin's account of the Titanic with Rosenthal's account of his visit to Auschwitz. In your paragraph,
1. 2 answers
2. asked by Randell
3. 1,048 views
what is the meaning of "Tango C.1918-24" of Elie Nadelman? why did he make it? I need some information for that work. Please
1. 0 answers
2. asked by Catherine
3. 1,043 views
How would you rewrite the following claim to remedy problems of ambiguity?Do not assume that common sense by itself solves the
1. 1 answer
2. asked by Jim
3. 1,028 views
For the reaction:CH4(g) + 2O2(g)-->CO2(g)+2H2O (l) ÄH = -50.38 kJ/mol, How many moles of methane (CH4) must be burned to
1. 2 answers
2. asked by Luke
3. 1,025 views
Thank you very much for your corrections. Here are some more sentences I'm not sure of.1) Mickey hasn't finished the washing-up,
1. 1 answer
2. asked by Franco
3. 1,009 views
Angioplasty is a technique in which arteries partially blocked with plaque are dilated to increase blood flow. By what factor
1. 0 answers
2. asked by BG
3. 1,006 views
A block moves up an incline of 45 inches at constant speed, because the action of a force of 15 N parallel to the incline. If
1. 0 answers
2. asked by Luz
3. 1,006 views
What is so special about Colonial NewYork???
1. 2 answers
2. asked by Sumaiya
3. 999 views
What does manipulative mean??Which fraction manipulative covers 1/2 of 1/3 ?
1. 3 answers
2. asked by Suzanne
3. 988 views
A jet pilot is in a vertical loop. If the jet is moving at a speed of 1300 km per hour at the lowest point of the loop determine
1. 1 answer
2. asked by Chris
3. 976 views
A Rectangle with vertices A, B, C, AND D. The triangle is divided with vertices P AND Q. How many right triangles can you make
1. 0 answers
2. asked by Camara
3. 963 views
Identify the action-reaction paris in the following situations:a) a person takes a step b) a snowball hits someone in the back
1. 1 answer
2. asked by Alecia
3. 952 views
is offshore outsourcing good for U.S.? and i will the references where you retrieved your answer thank you.
1. 0 answers
2. asked by jerry carter
3. 951 views
A 4.5 kg body moving in the +x direction at 5.5 m/s collides head-on with a 2.5 kg body moving in the -x direction at 4.0 m/s.
1. 2 answers
2. asked by Lily
3. 949 views
Use a combustion reaction of liquid ethanol in air as a source of work, assuming temperature is 25 deg C, air pressure is 1atm
1. 0 answers
2. asked by Jordan
3. 929 views
5. No, ____ me gusta ir a la escuelaa. nada b. no c. pues d. ni B? 9. No me gusta ____ nadar ____ dibujar. a. si/si b. si/ni c.
1. 3 answers
2. asked by mysterychicken
3. 920 views
Water is moving with a speed of 5.0 m/s through a pipe with a cross-sectional area of 4.2 cm2. The water gradually descends 8.2
1. 1 answer
2. asked by Megan
3. 919 views
a baseball team buys 15 bats for $405. aluminum bats cost $25 and wooden bats cost $30. how many of each type did they buy?
1. 2 answers
2. asked by dave
3. 912 views
Is momentum conserved when a cannon is rigidly mounted to the deck of a large boat and subsequently fired. What will happen and
1. 0 answers
2. asked by Fritz
3. 910 views
An astronaut on the Moon fires a projectile from a launcher on a level surface so as to get the maximum range. If the launcher
1. 1 answer
2. asked by ayanna
3. 905 views
The angular position of a point on the rim of a rotating wheel is given by Theta = 4.0t-3t^2+t^3, where theta is in radians and
1. 2 answers
2. asked by Scott
3. 894 views
give examples of literary and non-literary prose by citing examples from any source.350 words
1. 1 answer
2. asked by Neetoosha
3. 887 views
A 5.00 kg ball (ball 1), moving to the right at a velocity of +4.00 m/s on a frictionless table, collides head-on with a
1. 1 answer
2. asked by joshua
3. 882 views
The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.030 kg and is moving along the x
1. 0 answers
2. asked by joshua
3. 875 views
I need to write a response to Hoagland's "City Rat?"I don't know where to begin, or what a possible response can be
1. 1 answer
2. asked by Anonymous
3. 873 views
to move a large crate across a rough floor, you push down on it at an angle of 21 degree. find the force necessary to start the
1. 0 answers
2. asked by sid
3. 848 views
1. the opposite angles of a parallelogram measure(x=30) and (2x-50).Find the measure of each angle of the parallelogram.2. the
1. 2 answers
2. asked by marycon
3. 841 views
I have to do this big project on architecture and i'm only in 5th grade!!!!!!!!!!
1. 0 answers
2. asked by Erin
3. 839 views
How would i shorten the following citation for subsequent citations in Turabian style?Department of Nineteenth-Century, Modern,
1. 2 answers
2. asked by Anonymous
3. 836 views
Calculate the frequency of electromagnetic radiation emitted by the hydrogen atom in the electron transition from n = 7 to n =
1. 2 answers
2. asked by Emily
3. 825 views
two children are fighting over a toy pull on it from opposite sides .the result is stand off.explain this term of the net force
1. 1 answer
2. asked by juan
3. 807 views
You have been asked to speak at a career fair for high school students in your home town. Specifically, you are making a
1. 1 answer
2. asked by Jennifer
3. 792 views
multiply and simplify5Ib. 6oz. * 5
1. 2 answers
2. asked by Joe
3. 788 views
Hello,I am needing help formulating a question for my English class. We are needing to write an ethical/causal argument. I want
1. 1 answer
2. asked by Aestas
3. 785 views
How would you rewrite the following claim to remedy problems of ambiguity?Do not assume that common sense by itself solves the
1. 1 answer
2. asked by Jim
3. 780 views
ok so heres the question:Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies. For
1. 1 answer
2. asked by Tee
3. 772 views
Describe the motion of a bicycle in a race in terms speed,velocity,acceleration.
1. 0 answers
2. asked by cassie
3. 768 views
log8 4(square root sign) 1/2
1. 1 answer
2. asked by DAVE
3. 765 views
The angular position of a point on the rim of a rotating wheel is given by Theta = 4.0t-3t^2+t^3, where theta is in radians and
1. 0 answers
2. asked by Scott
3. 761 views
A 1.00-L gas sample at 100.°C and 611 torr contains 50.0% helium and 50.0% xenon by mass. What are the partial pressures of the
1. 1 answer
2. asked by Anonymous
3. 760 views
4. No es trabajadora. Es _____.a. atrevida b. desordenada c. perezosa d. impaciente C? 9. No me gusta _____ nadar ____ dibujar.
1. 1 answer
2. asked by mysterychicken
3. 755 views
which product is not equal to -1?A. 4/5 x 85/68 = +1 B. 3/27 x -216/24= -1 C. 7/8 x -16/14 = -1 D. -1/12 x -12 = +1 are those
1. 2 answers
2. asked by liiy
3. 750 views
How does the allylic halide behave under SN2 and SN1 conditions? Briefly explain why the allylic halide should be able to
1. 0 answers
2. asked by Crystal
3. 748 views
a) If the pressure and volume of a gas both increase, will the temperature increase or decrease?b) If the pressure is doubled
1. 1 answer
2. asked by R
3. 736 views
Organism A has more juxtamedullary nephrons than organism B. which of these organisms could concentrate urine more effectively
1. 1 answer
2. asked by Anonymous
3. 731 views
1. Look at the Canadian national flag.2. Look at the national flag of Canada. 3. This is the Chinese national flag. 4. This is
1. 2 answers
2. asked by rfvv
3. 721 views
individuals with diabetes mellitus produce urine that is concentrated and higher in volume than the urine of healthy
1. 0 answers
2. asked by Anonymous
3. 720 views

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