Archives
2012
February

Questions Asked on February 21, 2012

For the following reaction, Kp = 3.5 104 at 1495 K.H2(g) + Br2(g) 2 HBr(g) What is the value of Kp for the following reactions
1. 3 answers
2. asked by Elizabeth
3. 11,223 views
A 60 kg boy on roller skates moves with a speed of 5 m/s. He runs into a 40 kg girl on skates. Assuming they cling together
1. 2 answers
2. asked by judy
3. 5,216 views
At the bow of a ship on a stormy sea, a crewman conducts an experiment by standing on a bathroom scale. In calm waters, the
1. 2 answers
2. asked by Lilly
3. 4,461 views
A sensor light installed on the edge of a home can detect motion for a distance of 50ft. in front and with a range of motion of
1. 2 answers
2. asked by melissa
3. 4,023 views
It must be nice," she said. "It must be very nice. I wish women could do such things.""It ain't the right kind of a life for a
1. 7 answers
2. asked by Jess
3. 3,556 views
1. The time required to complete a project is normally distributed with a mean of 80 weeks and a standard deviation of 10 weeks.
1. 4 answers
2. asked by Gracie
3. 3,334 views
I have to find the integral of(e^3lnx + e^3x)dx. Can someone help me?
1. 2 answers
2. asked by Sarah
3. 3,026 views
Binomial problems: BasicAnita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion of
1. 3 answers
2. asked by Armando
3. 2,852 views
Which of the the following statements is true in regard to limited data sets?A.Limited data sets contain some individual
1. 1 answer
2. asked by Brenna
3. 2,830 views
what is the voltage acros a 60.0 resistor with a current of 3 1/3 a?
1. 1 answer
2. asked by Hannah
3. 2,562 views
How do you write the chemical equation for neutralization of nitric acid, HNO3, with magnesium hydroxide, Mg (OH)2, first with
1. 1 answer
2. asked by Holly
3. 2,393 views
The graph represents the purchasing power if the inflation is 12%. Estimate the purchasing power of a monthly salary of $3000?
1. 2 answers
2. asked by Kayla
3. 2,290 views
The drawing shows box 1 resting on a table, with box 2 resting on top of box 1. A massless rope passes over a massless,
1. 1 answer
2. asked by Natasha
3. 2,273 views
The equilibrium constant Kp for the reaction below at 700°C is 0.76 atm.CCl4(g) --> C(s) + 2 Cl2(g) Determine the initial
1. 1 answer
2. asked by Andre
3. 2,246 views
A piece of copper wire of resistance R is cut into 10 equal lengths. These parts are connected in parallel. How does the joint
1. 2 answers
2. asked by Anonymous
3. 2,236 views
ch3o what is functional group
1. 1 answer
2. asked by samira
3. 1,991 views
A brick is thrown upward from the top of a building at an angle of 25° to the horizontal and with an initial speed of 16 m/s.
1. 1 answer
2. asked by sid
3. 1,884 views
The Washington Monument is the tallest structure in Washington D.C. At the same time the monument casts a shadow that is about
1. 5 answers
2. asked by Eleanna
3. 1,857 views
I need a thesis statment for an esaay. I have read the short story "the large ant" but cant think of any thesis statment. Its
1. 3 answers
2. asked by Sarah
3. 1,821 views
2L of 6M HCl
1. 1 answer
2. asked by cindy
3. 1,754 views
Emma bought 6 new books for her collection. This increased her collection by 12%. How many books did she have before her
1. 5 answers
2. asked by Anonymous
3. 1,745 views
For the reaction below at a certain temperature, it is found that the equilibrium concentrations in a 5.00 L rigid container are
1. 1 answer
2. asked by Elizabeth
3. 1,737 views
A catapult used to hold a stone of mass 500g is extended by 20cm with an applied force F.If the stone leaves with a velocity of
1. 3 answers
2. asked by Godslight
3. 1,730 views
A 50 kg crate is pushed at constant speed up the frictionless 31° ramp shown in the figure.A)What horizontal force F is
1. 1 answer
2. asked by Steve
3. 1,685 views
can someone please explain f1d1 = f2d2
1. 2 answers
2. asked by jenny
3. 1,670 views
10. In the end of the story, most of the inhabitants of Rip Van Winkle's villagea. doubt his truthfulness b. believe, enjoy, and
1. 2 answers
2. asked by mysterychicken
3. 1,657 views
Scientist study many factors that allow them to predict weather. Which factor most directly affects the movement of air?a) air
1. 11 answers
2. asked by Miliano
3. 1,637 views
You operate a gaming Web site, where users must pay a small fee to log on. When you charged $3 the demand was 520 log-ons per
1. 1 answer
2. asked by Erin
3. 1,614 views
An upward force of 35 N is applied via a string to lift a ball with a mass of 2.1 kg.(a) What is the net force acting upon the
1. 2 answers
2. asked by Mina
3. 1,582 views
Find the slope of the line passing through the points (-3, -10) and (4, 5)
1. 1 answer
2. asked by Wendi
3. 1,526 views
Consider an ideal pulley system. Pull one end of a rope downward by 1 meter with 50 N of force, and you'll lift a 200-N load a
1. 1 answer
2. asked by britches
3. 1,500 views
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light,
1. 2 answers
2. asked by Steve
3. 1,475 views
Simplify:sin(x-y)cosy+cos(x-y)siny = (sinxcosy-cosxsiny)cosy+(cosxcosy+sinxsiny)siny = ??? What do I do next??? Please Help and
1. 4 answers
2. asked by Anonymous
3. 1,464 views
6. You have kinetic energy when you run. If you run three times as fast, you'll have a kinetic energy ____________________.A) 3
1. 1 answer
2. asked by britches
3. 1,459 views
Consider the reaction below.3 O2(g) --> 2 O3(g) At 175°C and a pressure of 128 torr, an equilibrium mixture of O2 and O3 has a
1. 1 answer
2. asked by Elizabeth
3. 1,458 views
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light,
1. 0 answers
2. asked by Steve
3. 1,445 views
So, they give me a word equation, where I am suppose to try and create a balanced equation for it.Ammonium phosphate and barium
1. 2 answers
2. asked by Matthew
3. 1,434 views
As Sales Manager for Montevideo Productions, Inc., you are planning to review the prices you charge clients for television
1. 1 answer
2. asked by Angel
3. 1,424 views
1) Given this data in a study on how the rate of a reaction was affected by the concentration of the reactantsInitial Rate, RUN
1. 1 answer
2. asked by Hannah
3. 1,399 views
General Hospital has a current ratio of 0.5. Which of the following actions would improve (increase) this ratio? (Hint: Create a
1. 0 answers
2. asked by W
3. 1,392 views
A boat which can travel at 5m/s in still water is crossing a river 200 m wide.the rate of the flow of the river is 2 m/s assumed
1. 1 answer
2. asked by Jat
3. 1,376 views
A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s
1. 2 answers
2. asked by Heather
3. 1,355 views
How many different whole numbers can be made with the digits 5, 7, 8? For this problem, each different whole number may have 1,
1. 1 answer
2. asked by eric
3. 1,354 views
An upward force of 35 N is applied via a string to lift a ball with a mass of 2.1 kg.(a) What is the net force acting upon the
1. 1 answer
2. asked by Mina
3. 1,340 views
Consider an ideal pulley system. Pull one end of a rope downward by 1 meter with 50 N of force, and you'll lift a 200-N load a
1. 2 answers
2. asked by britches
3. 1,338 views
Sally is driving her car and talking on her cell phone. Statistically this behavior has been shown to be quite dangerous and
1. 2 answers
2. asked by Tessy
3. 1,293 views
is conductivity a physical or chemical property
1. 4 answers
2. asked by bob
3. 1,286 views
I have to find the calculation of Van't Hoff factor "i" for NaCl and sucrose. The directions say to use the equationdelta Tf =
1. 6 answers
2. asked by Hannah
3. 1,270 views
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light,
1. 1 answer
2. asked by Eva
3. 1,269 views
Balance the follow equation using change in oxidation number method. (1) P4 + HNO3 = H3PO4 +NO2 + H2O (2) Na2Cr2O7 + FeCl2 + HCl
1. 1 answer
2. asked by Chemo
3. 1,267 views
¿Cómo son las monedas de pesos mexicanos?We had to do a reading and type the answers-not sure about this questionHay monedas
1. 4 answers
2. asked by Audrey
3. 1,250 views
Thank you very much. Here is a summary I need to prepare for tomorrow. I also need to rephrase the last sentence. Thank you very
1. 1 answer
2. asked by Henry2
3. 1,239 views
Darius uses the shadow method to estimate the height of a flagpole. He finds that a 5 foot stick casts a 4 foot shadow. At the
1. 1 answer
2. asked by Lizette
3. 1,227 views
A man stands on the roof of a 10.0 -tall building and throws a rock with a velocity of magnitude 30.0 at an angle of 34.0 above
1. 1 answer
2. asked by Rei
3. 1,220 views
You have just opened a new nightclub, Russ' Techno Pitstop, but are unsure of how high to set the cover charge (entrance fee).
1. 0 answers
2. asked by Anonymous
3. 1,217 views
What is chemical name for Na2Cr2O2?
1. 2 answers
2. asked by Chemo
3. 1,216 views
Write the equation of the line tangent to the graph of the function at the indicated point. As a check, graph both the function
1. 1 answer
2. asked by Mike
3. 1,210 views
I included my doubts using question marks. I need to rephrase "hopefuls", "disposable" and the last sentence. I really hope you
1. 1 answer
2. asked by Henry2
3. 1,206 views
Find the amount of CuSO4.5H2O needed to prepare 500 mL of 0.25 M solution.
1. 1 answer
2. asked by Sarah
3. 1,201 views
A young boy swings a yo-yo horizontally above his head so that the yo-yo has a centripetal acceleration of 275 m/s2. If the
1. 2 answers
2. asked by Anonymous
3. 1,193 views
ROMEO AND JULIETwhat are juliets feelings towards romeo in act 3 scene 2 from lines 1-35?
1. 4 answers
2. asked by ali
3. 1,185 views
Use the angle at the tail of v(arrow above) and the magnutude of v to calculate the values of vx and vy. How do these values
1. 2 answers
2. asked by geekgirl05
3. 1,166 views
f someone scored two Standard Deviations above the Mean on a standardized test where the Mean = 100 and the Standard Deviation =
1. 1 answer
2. asked by Annie
3. 1,158 views
A 200-L iron tank has a mass of 36 kg. a) Will it float on seawater if empty? b) What mass of potatoes could be added such that
1. 1 answer
2. asked by Jessica
3. 1,156 views
can any two triangles be joined to make a rhombus
1. 2 answers
2. asked by ezabai
3. 1,156 views
the diving club offers 4 beginning diving classes each day . each class has room for 6 people . how many people can take classes
1. 2 answers
2. asked by ahoids
3. 1,153 views
Business and Economics: For a business to make a profit it is clear that revenue R must be greater than cost C; in short, a
1. 1 answer
2. asked by momin
3. 1,149 views
Simplify #3:[cosx-sin(90-x)sinx]/[cosx-cos(180-x)tanx] = [cosx-(sin90cosx-cos90sinx)sinx]/[cosx-(cos180cosx+sinx180sinx)tanx] =
1. 1 answer
2. asked by Anonymous
3. 1,147 views
Which requires more power? lifting a 25 kg bag of cement 10 m vertically in 1 minute, or lifting a 50 kg bag 5?
1. 1 answer
2. asked by britches
3. 1,129 views
A block is suspended from the end of a spring. An external force holds the block so that initially the spring is not stretched
1. 1 answer
2. asked by Mary
3. 1,127 views
1.) Calculate delta rH for the freezing of water at one bar and -10 degrees C. The heat capacities are H2O(s)=36.9 JK-1mol-1 and
1. 1 answer
2. asked by nicole
3. 1,115 views
The amount of carbon dioxide (in pounds per 15,000 cubic miles) released by a certain SUV depends on its fuel efficiency
1. 1 answer
2. asked by Eric
3. 1,111 views
A crane is holding a bloc of metal of 10 000kg. If the crane's arm weights 1000kg and is 10,0m long, what is the tension in
1. 0 answers
2. asked by Raf
3. 1,093 views
The resistance of a 395 m long aluminum rod is 3580 .A. Find the cross-sectional area of the rod mm2 B. Find the current in the
1. 0 answers
2. asked by Anonymous
3. 1,087 views
Let sct 3 , where c 1.0 m/s 3 . Compute the average speed over the time intervals �t1 1.0 10 �1 s, �t2 1.0 10 �2 s, and �t3 1.0
1. 1 answer
2. asked by juan
3. 1,087 views
Two blocks are positioned as shown below. block A has a mass of 15 kg and hangs on one end of a cable that passes over a
1. 1 answer
2. asked by Eastern Illinois University
3. 1,078 views
The boiling point of an aqueous solution is 102.35 °C. What is the freezing point? Constants can be found here.
1. 3 answers
2. asked by Heather
3. 1,066 views
Point E is the centroid of triangle ABC. Find DB.AF = 10x=3 EF = 2x+5 EB = 4x+3 This is for median of triangles.
1. 2 answers
2. asked by Anonymous
3. 1,065 views
A loaf of bread was shared by four people. The amounts they each received were in the ratio of 2/3 : 1/2 : 1/3 : 1/4. What
1. 2 answers
2. asked by CrissyXD
3. 1,035 views
Is this quote a metaphor?"That's a bright direction, there's a glowing there." In context it seems like a metaphor since the
1. 3 answers
2. asked by Joshua
3. 1,034 views
Writeacher, I need to rephrase a few verbs related to film stars. I also wanted to prepare a sort of vocabulary to be used when
1. 1 answer
2. asked by Henry2
3. 1,031 views
why dna replication necessary to life? i think it because it carry genetic information?
1. 0 answers
2. asked by Shreya
3. 1,031 views
At 0.100 s intervals, the xcoordinates of a particle are 0, 1.01 cm, 2.05 cm, and 3.12 cm. Estimate the instantaneous velocity
1. 2 answers
2. asked by juan
3. 1,027 views
The drawing shows a wire tooth brace used by orthodontists. The topmost tooth is protruding slightly, and the tension in the
1. 1 answer
2. asked by Natasha
3. 1,025 views
Add. (2a^4-2a^3+3a^2+14a-5)+(a^5+7a^3+7a^2-3a+2)+(-5a^4+a^2-8a-6)
1. 1 answer
2. asked by jossie
3. 1,022 views
For the reaction given below, the frequency factor A is 8.7 multiplied by 1012 s-1 and the activation energy is 63 kJ/mol.NO(g)
1. 1 answer
2. asked by Tanyo
3. 1,019 views
At 2200°C, K = 0.050 for the following reaction.N2(g) + O2(g) 2 NO(g) What is the partial pressure of NO in equilibrium with N2
1. 1 answer
2. asked by Elizabeth
3. 988 views
In order to share an XML file among different systems and programs, this XML file need to checked well, what are the two things
1. 1 answer
2. asked by Lisa
3. 984 views
A water-skier lets go of the tow rope upon leaving the end of a jump ramp at a speed of v1 = 14.7 m/s. the skier has a speed of
1. 1 answer
2. asked by Sam
3. 978 views
The table shows the number of classrooms needed for different numbers of students.Total Students Classrooms 66 3 110 5 154 7 220
1. 4 answers
2. asked by Colton
3. 977 views
For this problem, assume that you are to pick 3 cars from the motor pool, which contains 6 subcompact cars, 6 compact cars, and
1. 1 answer
2. asked by victoria
3. 973 views
Explain, using collision theory, the effect of decreasing temperature on the rate of a chemical reaction.Explain, using
1. 2 answers
2. asked by Aria
3. 966 views
At –10.00 °C (a common temperature for household freezers), what is the maximum mass of fructose (C6H12O6) you can add to
1. 1 answer
2. asked by Heather
3. 965 views
Life would best be symbolized by what?A. darkness B. island C. tree D. stone
1. 5 answers
2. asked by Katlin Hanson
3. 962 views
In the decomposition reaction 2 KCIO3 (s) --> 2KCI (s)+3O2(g),what volume of O2 gas at STP would be produced from 3.66 of KCIO3
1. 1 answer
2. asked by Sean Z.
3. 951 views
Clara Wieck Schumann's "Forward" was written for a/an?
1. 1 answer
2. asked by wendy
3. 934 views
Assume that there are 7 different issues of Newsweek, 8 different issues of Time, and 4 different issues of Sports Illustrated,
1. 0 answers
2. asked by victoria
3. 931 views
Sand is poured onto a level piece of ground at the rate of 0.25 m^3/min and forms a conical pile whose height is equal to its
1. 3 answers
2. asked by help
3. 915 views
Your friend's 11.1g tassel hangs on a string from his rear-view mirror. When he accelerates from a stop light, the tassel
1. 1 answer
2. asked by Brice
3. 904 views
In your opinion should there be a specific curriculum included in school and college syllabus which would teach students on
1. 1 answer
2. asked by sharday
3. 878 views

Back to February 2012

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2025