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Questions Asked on February 25, 2012

the base of a solid is the region between the curve y=2 square root of sin x and the interval [0,pi] on the x-axis. the
1. 1 answer
2. asked by diny
3. 3,413 views
Write the composite function in the form f(g(x)). [Identify the inner function u=g(x) and the outer function y=f(u).] Then find
1. 1 answer
2. asked by danny
3. 3,385 views
Two identical +9.0 µC point charges are initially spaced 5.2 cm from each other. If they are released at the same instant from
1. 1 answer
2. asked by Jon
3. 3,160 views
A small sphere with a mass of 2.00×10−3 g and carrying a charge of 5.20×10−8 C hangs from a thread near a very large,
1. 1 answer
2. asked by canan
3. 3,147 views
Fire towers A and B are located 10 miles apart. They use the direction of the other tower as0°. Rangers at fire tower A spots a
1. 1 answer
2. asked by Alianne
3. 2,506 views
A scatter plot would be useful forA. Showing the relative number of sales of four different brands of blank DVDs B. Showing the
1. 1 answer
2. asked by RGCLARK
3. 2,504 views
a body of mass 5 kg is thrown vertically upwards with a speed of 10m/s what is its k.e. when it is thrown find its potential
1. 2 answers
2. asked by Sharma
3. 1,870 views
The reaction: A + 3 B = D + F was studied and the following mechanism was finally determinedA + B = C (fast) C + B = D + E
1. 1 answer
2. asked by bob
3. 1,749 views
The probability that a married man watches a certain television show is 0.4 and the probability that a married woman watches the
1. 2 answers
2. asked by Misael
3. 1,717 views
A wire has a length of 4.52 x 10-2 m and is used to make a circular coil of one turn. There is a current of 7.94 A in the wire.
1. 3 answers
2. asked by Megan
3. 1,652 views
Triangulation can be used to find the location of an object by measuring the angles to theobject from two points at the end of a
1. 1 answer
2. asked by Alianne
3. 1,651 views
1. The purpose of American and European imperialism in the Pacific was mainly to gaina. markets for manufactured products b.
1. 3 answers
2. asked by mysterychicken
3. 1,604 views
complete the following double displacement reaction and indicate the states:KCl+AgNO3=
1. 1 answer
2. asked by Mandy
3. 1,548 views
A body of mass 10kg falls from a height of 5m above the ground what is the kinetic energy of the body just before its strike the
1. 1 answer
2. asked by Igbekele
3. 1,366 views
A pitched ball is hit by a batter at a 45° angle and just clears the outfield fence, 90 m away. Assume that the fence is at the
1. 1 answer
2. asked by Tim
3. 1,340 views
The force exerted by the wind on the sails of a sailboat is Fsail = 440 N north. The water exerts a force of Fkeel = 160 N east.
1. 1 answer
2. asked by Gregg
3. 1,338 views
A ball rolls with a speed of 6.4 m/s toward the edge of a table that is 0.7 m above the floor. The ball rolls off the table.a.
1. 2 answers
2. asked by Tim
3. 1,330 views
how many seconds will elapse between seeing lightning and hearing the thunder if the lightning strikes miles away and the
1. 3 answers
2. asked by Hannah
3. 1,322 views
For a certain chemical reaction, the rate constant at 250.0 °C is 0.00383 s-1 and the activation energy is 22.40 kilojoules.
1. 1 answer
2. asked by bob
3. 1,293 views
1) The reaction: A + 3B = D + F was studied and the following mechanism was finally determinedA+B=C (fast) C+B=D+E (slow) E+B=F
1. 1 answer
2. asked by Hannah
3. 1,293 views
Methanol (CH3OH) can be made by controlled oxidation of methane.CH4(g) + 1/2 O2(g) �¨ CH3OH(g) I found that the ƒ¢H�‹ is
1. 1 answer
2. asked by janvi
3. 1,265 views
What does aldous Huxley quote mean "Technological progress has merely provided us with more efficient means of going backward."
1. 1 answer
2. asked by erika
3. 1,256 views
Can someone give me an example when the self-fulfilling prophecy resulted from you own expectations of the outcome of the event?
1. 3 answers
2. asked by Alana
3. 1,255 views
For an object in equilibrium the sum of the torques acting on it vanishes only if each torque is calculated based on your:
1. 2 answers
2. asked by Hector
3. 1,222 views
A wire has a length of 4.52 x 10-2 m and is used to make a circular coil of one turn. There is a current of 7.94 A in the wire.
1. 1 answer
2. asked by Megan
3. 1,207 views
For a particular chemical reaction, the rate constant at 30.0 °C is 1.38 X 10-4 L mol-1 s-1, while the value at 49.0 °C is
1. 1 answer
2. asked by bob
3. 1,206 views
calculate the freezing point of 12.0g FeCl3 in 142g water...
1. 1 answer
2. asked by globamabob
3. 1,186 views
A system at equilibrium contains I2(g) at a pressure of 0.23 atm and I(g) at a pressure of 0.24 atm. The system is then
1. 1 answer
2. asked by Anjali
3. 1,184 views
In 9.7 s a fisherman winds 2.1 m of fishing line onto a reel whose radius is 30 cm (assumed to be constant as an approximation).
1. 2 answers
2. asked by Nilan
3. 1,154 views
A man invested half of his money at 5%, one-third of his money at 4%, and the rest of his money at 5.5%. If his total investment
1. 1 answer
2. asked by aj
3. 1,153 views
I had to perform an experiment for rate of reaction.The point of the experiment was to show how changes in reactant
1. 6 answers
2. asked by Hannah
3. 1,137 views
The fuel efficiency, E, in litres per 100 km, for a car driven at speed v, in km/h is E(v)=1600v/(v^2+6400)a) determine the
1. 1 answer
2. asked by Jake
3. 1,130 views
a 25 kg box is released from rest on a rough inclined plane tilted at an angle of 33.5 degrees to the horizontal. The
1. 2 answers
2. asked by Allie
3. 1,114 views
find y" by implicit differentiation.4x^3 + 3y^3 = 4 ===================================== 4x^3 + 3y^3 = 4 12x + 9yy' = 0 24x +
1. 1 answer
2. asked by Nurcan
3. 1,113 views
adam smith supported three different views of theory of value(are the followings correct, i will add them to my essay) 1. Labor
1. 1 answer
2. asked by Ana
3. 1,099 views
What does the quote from Jean arp "soon silence will have passed into legend.man has turned his back on silence. Day after day
1. 2 answers
2. asked by erika
3. 1,094 views
Keith, Anne, Elizabeth, and Marcus are taking a picture. how many different ways can the friends stand in a horizontal line for
1. 1 answer
2. asked by shion
3. 1,093 views
Solve variation problemif m varies jointly as z and p, and m=10 when z=2 and p=7.5, find m when z=5 and p=7
1. 1 answer
2. asked by Anne
3. 1,089 views
For the following function, state the derivative and evaluate f'(4):f(x) = x Please show your work! Thank you!!
1. 3 answers
2. asked by Labiba
3. 1,084 views
An American standard analog television picture (non-HDTV), also known as NTSC, is composed of approximately 485 horizontal lines
1. 3 answers
2. asked by mina
3. 1,081 views
Each side of a square is 20cm. Four points on the sides are joined as shown to form an inner square. What is the minimum area of
1. 1 answer
2. asked by Me & u
3. 1,079 views
" performance can't be measured , so any effort to link pay with performance is a fantasy. Difeerence in performances are often
1. 1 answer
2. asked by Stephanie
3. 1,076 views
create a java program that accepts students names, and test scores from a file, and displays theri name, average score and
1. 2 answers
2. asked by Big Daddy
3. 1,074 views
Consider a differentiable functionf having domain all positive real numbers, and for which it is known that f'(x)=(4-x)^-3 for
1. 3 answers
2. asked by bill
3. 1,066 views
Triangulation can be used to find the location of an object by measuring the angles to theobject from two points at the end of a
1. 0 answers
2. asked by Alianne
3. 1,012 views
how do you Match each ordered pair with the quadrant in which it lies?
1. 1 answer
2. asked by Lorna
3. 996 views
A particular reaction has an activation energy of 51.6 kJ/mol-rxn. How much faster is the reaction at 50 degrees C versus 25
1. 0 answers
2. asked by bob
3. 988 views
A bag holds 3 yellow marbles and 7 blue marbles. how many and what color marbles could you add to the bag so that the
1. 2 answers
2. asked by shion
3. 983 views
1) The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the
1. 0 answers
2. asked by Hannah
3. 953 views
Balance the redox equation by oxidation number method:Cr2O7 2- + Br- + H+ = Cr 3+ + Br + H2O Please help!
1. 1 answer
2. asked by Sarah
3. 952 views
For a one step reaction, the activation energy for the forward reaction is 40.0 kJ/mol and the enthalpy of reaction is -20.0 kJ
1. 1 answer
2. asked by bob
3. 951 views
To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest . The belt is a 215-turn coil.
1. 1 answer
2. asked by Help
3. 940 views
Writeacher, I really need your help to write a short paragraph (100 words) on how best to prepare for a university interview.I'l
1. 1 answer
2. asked by Henry2
3. 927 views
The equation A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must bea.
1. 1 answer
2. asked by bob
3. 925 views
solve by the substitution method. 6x+3y=-21 -4x+y=41
1. 3 answers
2. asked by kim
3. 908 views
what is the power of a 6 ohm bulb when 3 of such bulbs ar econnected in a 12 volt parallel circuit?
1. 1 answer
2. asked by Hannah
3. 904 views
Calculate the resistance per unit length of a nichrome wire, which has a radius of 0.436 mm. The resistivity of nichrome is
1. 1 answer
2. asked by Kudo
3. 894 views
patricia had a car crash while she was on her way to work one morning.she was badly injured and needed to have an arm
1. 0 answers
2. asked by mary
3. 885 views
Why oceans are important as a source of moisture
1. 1 answer
2. asked by Slindile Muthwa
3. 868 views
A line in the infrared region of the hydrogen spectrum has a wavelength of 1.875 micro meters. What is the transition
1. 0 answers
2. asked by Jimmy
3. 857 views
a perso increases the number of tosses of a fair coin the actual number of heads will get farther and farther away from the
1. 1 answer
2. asked by marie
3. 851 views
sketching the level curve of f(x,y) = y/(x^2 + y^2)Just wondering if there is a way to get the equation of the line cause I have
1. 1 answer
2. asked by Bryan
3. 841 views
Now consider a rectangle of perimeter 20cm.let one side be x find the length of other sides in terms of x"plz help me"thnx
1. 1 answer
2. asked by Zama
3. 841 views
The temperature in a room is kept at a constant 20 °C but the humidity is only 20%. If the room has a volume of 30m³, and the
1. 0 answers
2. asked by sand
3. 834 views
Write a two column proof.Given: angle STV is congruent to angle TVU, angle STU is congruent to angle UVS. Prove: Angle SVT is
1. 1 answer
2. asked by Lina
3. 831 views
A ball is dropped from 27.0 feet above the ground. Using energy considerations only, what is the velocity of the ball prior to
1. 1 answer
2. asked by Hannah
3. 820 views
Write the formula for each of the following compounds, being sure to use brackets to indicate the coordination sphere.1)
1. 2 answers
2. asked by DAN
3. 807 views
An aqueous salt solution is formed by adding 11.67 g sodium sulfate (solute) to water (solvent). What mass (in g) of water is
1. 4 answers
2. asked by jenny
3. 797 views
Problem 1.Three supermarket chains in the Denver area each claim to have the lowest overall prices. As part of an investigative
1. 1 answer
2. asked by Jess
3. 779 views
The equation A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must bea.
1. 0 answers
2. asked by bob
3. 772 views
I am looking for an attention getter for my imformative speech about dog-human communication, In the speech, I am going to be
1. 1 answer
2. asked by rebekah
3. 767 views
1) The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the
1. 0 answers
2. asked by Hannah
3. 765 views
x+y=5x-y=3 Please help me solve this system of equation and show your work thanks
1. 2 answers
2. asked by Kim
3. 760 views
Read the following passage by Picoult and identify the metaphor. Quote the metaphor in your response and explain what makes it
1. 3 answers
2. asked by Riley
3. 757 views
For a one step reaction, the activation energy for the forward reaction is 40.0 kJ/mol and the enthalpy of reaction is -20.0 kJ
1. 0 answers
2. asked by bob
3. 755 views
a 1300 kg car starts from rest at A , coasts 170m through a dip and comes to stop at B after coasting a distance d on level
1. 3 answers
2. asked by Anonymous
3. 755 views
A 29-ft chain with mass density 3 lb/ft is initially coiled on the ground. How much work is performed in lifting the chain so
1. 1 answer
2. asked by Sara
3. 753 views
The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the
1. 0 answers
2. asked by bob
3. 747 views
Writeacher, I need to know the vocabulary generally used when comparing pictures. I need you to check these sentences and
1. 1 answer
2. asked by Henry2
3. 742 views
I also need to find information about the following questions. I really hope you can help me, writeacher.1) How important do you
1. 2 answers
2. asked by Henry2
3. 733 views
Find the derivative of the function.1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3 ---> i hate trig. 3. y=4sec5x 4. y=xsin√x
1. 0 answers
2. asked by dania
3. 732 views
How do you find all the polar coordinates of P=(-1, -2pi/3)? I've read that you're supposed to add 2pi to find the coterminals
1. 1 answer
2. asked by Mayhem
3. 731 views
In 9.7 s a fisherman winds 2.1 m of fishing line onto a reel whose radius is 30 cm (assumed to be constant as an approximation).
1. 2 answers
2. asked by Nilan
3. 728 views
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 416 N and F2 = 363 N.
1. 1 answer
2. asked by Anonymous
3. 711 views
I nee help revising my essay here it isThis is what my general view on American History. Well let me tell you it’s a course
1. 2 answers
2. asked by connie
3. 705 views
an 84 kg fisherman jumps for a dock into a 122 kg rowboat at rest on the westside on the dock. if the velocity of the fishermen
1. 1 answer
2. asked by Anonymous
3. 696 views
a hollow cylindrical pipe is 21m long .its outer and inner diameters are 10 cm and 6cm respectively .find the volume of copper
1. 1 answer
2. asked by Anonymous
3. 689 views
Which of the following is true about hedge funds?A) They are heavily regulated B) Hedge fund investments are more liquid than
1. 3 answers
2. asked by Stephanie
3. 686 views
The Robinsons decide they would rather purchase the $85,000 home. Their bank requires a 5% down payment to be paid to the seller
1. 1 answer
2. asked by Pat
3. 677 views
A ball is dropped from a height of 10m .If the energy of ball reduces by 40% after striking the ground, how much high can the
1. 3 answers
2. asked by Sharma
3. 674 views
Rebekah's recipe for 4 1/2 dozen cookies calls for 6 cups of sugar. How many cups of sugar are needed to make 8 dozen cookies?Is
1. 1 answer
2. asked by Taylor
3. 668 views
In "Touching Spirit Bear," the book, I have to answer these questions.1. Why does Cole think the bear attacked him? 2. In what
1. 1 answer
2. asked by Alexis Herda
3. 666 views
The sum of 3 consecutive intergers is 90. Find the largest interger if x is the smallest interger.
1. 1 answer
2. asked by Ernest
3. 660 views
If the angle decreases what will happen to the tension? Please explain why.
1. 1 answer
2. asked by Anonymous
3. 656 views
iron cube of side 10 cm is kept on a horizontal table . If the density of iron cube is 8000 kg /m cube , find the pressure on
1. 1 answer
2. asked by Sharma
3. 652 views
I don't know how to do this question, I understand we have to use ICE but I keep getting the wrong answer when I solve for x,
1. 4 answers
2. asked by Student
3. 649 views
What does this quote mean from aldous"technological progress has merely provided us with a more efficient means of going
1. 13 answers
2. asked by erika
3. 646 views
Balance each of the following redox equations using the half-reaction method.HI(s) + H2SO4 (aq) --> H2S(g) + I2 (s) My only
1. 2 answers
2. asked by Aria
3. 644 views
A 90 cm length of steel wire with a diameter of 0.5 mm is stretched between the inside walls of an oven the wire is just taut
1. 1 answer
2. asked by sand
3. 640 views
Thank you very much for your help.I tried to include a few things, though I couldn't find much about how to prepare for an
1. 1 answer
2. asked by Henry2
3. 638 views

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