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Questions Asked on February 17, 2010

A 15.0 Ohms resistor is connected in series to a 120V generator and two 10.0 Ohms resistors that are connected in parallel to
1. 1 answer
2. asked by Rony
3. 7,710 views
Two resistors, one 12Ohms and the other 18 Ohms, are connected in parallel. What is the equivalent resistance of the parallel
1. 2 answers
2. asked by Rony
3. 5,115 views
1.)An aqueous solution is 34.0% H3PO4 by mass and has a density of 1.207 g/mL. What is the molarity of the solution? AND what is
1. 2 answers
2. asked by anonymous
3. 4,714 views
A radio tower 500 feet high is located on the side of a hill with an inclination to the horizontal of 5 degrees. How long should
1. 3 answers
2. asked by PLEASE HELP ME
3. 4,417 views
Imagine that your water heater has broken, but you want to take a bath. You fill your bathtub with 25kg of room-temperature
1. 2 answers
2. asked by Anonymous
3. 4,224 views
When would you use:Jim and I or Jim and me? Can you give me some examples...and maybe a website. Thank you.
1. 3 answers
2. asked by Christopher
3. 3,701 views
Given that the specific heat capacities of ice and steam are 2.06 J/g°C and 2.03 J/g°C, the molar heats of fusion and
1. 4 answers
2. asked by Emily
3. 3,370 views
Which of the following are empirical formulas?A) Ribose (C5H10O5) B) Ethyl Butyrate (C6H12O2) C) Chlorophyll (C55H72MgN4O5) D)
1. 1 answer
2. asked by Jack
3. 3,267 views
A 3.00 uF and a 5.00 uF capacitor are connected in series cross a 30.0V battery. A 7.00 uF capacitor is then connected in
1. 3 answers
2. asked by ALan
3. 3,245 views
Why are small balloons cheaper than large balloons?
1. 7 answers
2. asked by Sakura
3. 3,082 views
Heating 1.124g of an unknown NaHCO3-NaCl mixture resulted ina mass loss of 0.270g.1) Calculate the mass of NaHCO3 present in the
1. 2 answers
2. asked by Macey
3. 2,868 views
A sample of solid Ca(OH)2 is stirred in water at 30°C until the solution contains as much dissolved Ca(OH)2 as it can hold. A
1. 2 answers
2. asked by Candice
3. 2,788 views
How do you express sin4x as a trigonometric funcition of x using the identities? I think that you are supposed to start with the
1. 1 answer
2. asked by Taylor
3. 2,562 views
**When 0.187 g of benzene,C6H6, is burned in a bomb calorimeter, the surrounding water bath rises in temperature by 7.48 C. **As
1. 1 answer
2. asked by Julie
3. 2,538 views
1. Write the expression as a function of an acute angle whose measure is less than 45.a. sin 80 b. sin (-100) To find the
1. 1 answer
2. asked by Priscilla
3. 2,435 views
In an experiment to find the percentage of calcium carbonate in sand from a beach, 1.86 g of sand reacted with an excess of
1. 3 answers
2. asked by Tony
3. 2,357 views
Explain how to make a 1 Normal solution H3PO4.
1. 1 answer
2. asked by David
3. 2,221 views
Pure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25°C. Calculate the molarity of a
1. 4 answers
2. asked by Mindy
3. 2,081 views
An electric catfish can generate a significant potential difference using stacks of special cells called electrocytes. Each
1. 2 answers
2. asked by Anthony
3. 2,065 views
An electric eel develops a potential difference of 460 V, driving a current of 0.80 A for a 1.0 ms pulse.Find the power of this
1. 2 answers
2. asked by Anthony
3. 1,892 views
Consider the solid S described below.A right circular cone with height 7h and base radius 2r Find the volume V of this solid
1. 2 answers
2. asked by HELP PLEASE!
3. 1,878 views
MIX W5 CUPS CONCENTRATE AND 8 CUPS COLD WATER. SUPPOSE YOU MAKE ONLY 1 CUP OF MIX W. hOW MUCH WATER AND HOW MUCH CONCENTRATE DO
1. 2 answers
2. asked by KATIE
3. 1,751 views
How much energy (in kilojoules) is required to convert 280mL of diethyl ether at its boiling point from liquid to vapor if its
1. 1 answer
2. asked by Julie
3. 1,586 views
A falling stone takes 0.28 s to travel past a window 2.2 m tall. From what height above the top of the window did the stone
1. 1 answer
2. asked by Aly
3. 1,492 views
In response to the increasing weight of airline passengers, the Federal Aviation Administration in 2003 told airlines to assume
1. 1 answer
2. asked by steve
3. 1,455 views
When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical
1. 7 answers
2. asked by Anthony
3. 1,451 views
The relatively high resistivity of dry skin, about 1x10^6 Ohm m, can safely limit the flow of current into deeper tissues of the
1. 2 answers
2. asked by Anthony
3. 1,441 views
A truck moves 70m east, then moves 120m west, and finally moves east again a distance of 90 m. If east is chosen as the positive
1. 1 answer
2. asked by Chastity
3. 1,432 views
The vector position of a 3.65 g particle moving in the xy plane varies in time according to the following equation.r1 =
1. 0 answers
2. asked by engmath
3. 1,332 views
Let x be the number of miles driven on 60 gallons of gas. By setting up and solving a proportion involving x, find the value of
1. 2 answers
2. asked by michelle king
3. 1,307 views
What can you conclude about the relationship between colligative properties and the type of ions in solution from the 1.0m
1. 2 answers
2. asked by Laverne
3. 1,282 views
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is
1. 1 answer
2. asked by anonymous
3. 1,280 views
What tool/instrument is used to measure liquid volume?
1. 3 answers
2. asked by pavleen
3. 1,274 views
2 NO2(g) N2(g) + 2 O2(g)The ¥ÄH¡Æ for the reaction above is -66.4 kJ. The system is initially at equilibrium. What happens
1. 1 answer
2. asked by JCY
3. 1,273 views
2. Which statement best explains the effect of resources on population size?a. the exponential growth curve models the effects
1. 0 answers
2. asked by mysterychicken
3. 1,266 views
Use the cofunction identities to find an angle x that makes the statement true: tan(2x-140) = cot(x+5)
1. 2 answers
2. asked by Sandra
3. 1,263 views
How much heat (in kilojoules) is released on reaction of 4.10 g of Al?Reaction: 2Al(s) + 3Cl2(g)--->2AlCl3(s) Delta H= -1408.4
1. 3 answers
2. asked by Jackie
3. 1,259 views
A 70 W electric blanket runs at 24 V.What is the resistance of the wire in the blanket? How much current does the wire carry?
1. 2 answers
2. asked by Anthony
3. 1,239 views
Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn
1. 2 answers
2. asked by Anthony
3. 1,235 views
can your help me with my homework question?Gildas family goes on vacation. They travel 125 miles in the first 2.5 hours.If
1. 1 answer
2. asked by pavleen
3. 1,220 views
How much heat (in kilojoules) is released on reaction of 4.10 g of Al?Reaction: 2Al(s) + 3Cl2(g)--->2AlCl3(s) Delta H= -1408.4
1. 3 answers
2. asked by Julie
3. 1,209 views
In a typical lightning strike, 2.5 C flows from cloud to ground in 0.20 ms.What is the current during the strike?
1. 2 answers
2. asked by Anthony
3. 1,185 views
how has the geography and history of the South helped create a diverse population that continues to grow?
1. 0 answers
2. asked by bex
3. 1,176 views
What is the hidden word in the letters below:-aeeilnnstv Thanks
1. 2 answers
2. asked by MONA
3. 1,175 views
which sentence is correct?I like to ride my bike IN the park. I like to ride my bike AT the park.
1. 2 answers
2. asked by Happy Face
3. 1,159 views
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1g of copper and asked to make a
1. 1 answer
2. asked by Anthony
3. 1,139 views
My teacher saidIf x-2(square root xy)=9-4(square root 2) so since there are two square roots -2(square root xy) equals -4(square
1. 1 answer
2. asked by Ulyessus
3. 1,134 views
I forgot to include the following statements:Thank you very much in advance. 1) Yesterday I read the following news in the
1. 1 answer
2. asked by Franco
3. 1,132 views
In organizational psychology, the "Big Five" refers to five general principles to be used when making changes.
1. 1 answer
2. asked by lola
3. 1,104 views
Databases are everywhere, both seen and unseen. What are some of the databases you interact with? Why do databases make
1. 1 answer
2. asked by Lourdes
3. 1,093 views
Please help me on these questions:3. The soil of much of the steppe region of Northern Eurasia is a. very fertile and
1. 0 answers
2. asked by y912f
3. 1,083 views
how do i calculate a ratio of oxidised to reduced cytochrome c Fe2+ to Fe3+given E(mV) at 25 C and pH7 as 100 and absorbance at
1. 0 answers
2. asked by lucy
3. 1,071 views
One student says “My sister’s high school geometry book talked about equal angles. Why don’t we use the term equal angels
1. 1 answer
2. asked by alicia
3. 1,065 views
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.8g of copper and asked to make a wire,
1. 3 answers
2. asked by Anthony
3. 1,047 views
This is for my English 101 class, I have to write a 3 page paper. Why did the recent history of liberalism and neoconservatism
1. 5 answers
2. asked by Megan
3. 1,035 views
How much heat (in kilojoules) is evolved or absorbed in the reaction of 2.65 g of Na with H2O?2Na+2H2O ---> 2NaOH + 2H2 Delta H=
1. 3 answers
2. asked by Anonymous
3. 1,024 views
Does anyone know how to calculate average point grade?I have the following data: grade D - 2 students - 4,9 percent grade C - 6
1. 9 answers
2. asked by refy
3. 1,021 views
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is
1. 0 answers
2. asked by anonymous
3. 1,011 views
A student claims that if any two planes that do not intersectare parallel, then any two lines that do not intersect should also
1. 2 answers
2. asked by alicia
3. 1,006 views
what does it mean when ur teacher says include a revised and proofread copy
1. 3 answers
2. asked by laura
3. 953 views
The electric field at the point and points in the positive direction with a magnitude of 8.00 . At the point and the electric
1. 5 answers
2. asked by Adam
3. 943 views
Can you elaborate on the five broad domains or dimensions of personality which have been scientifically discovered to define
1. 1 answer
2. asked by lola
3. 940 views
WHAT TASK COMPONENT DISTINGUISHES THE WECHSLER SCALES FROM SBIS?
1. 1 answer
2. asked by tea scott
3. 908 views
write equation of line that passes through the point1)parallel to the given line 2)perpendicular to the given line pt (6,2) line
1. 3 answers
2. asked by ashley
3. 881 views
Find the volume of the solid obtained by revolving the graph of y=x(sqrt(1-x^2)) over [0,1] about the y-axis.How do you write
1. 2 answers
2. asked by Jenna
3. 871 views
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is
1. 0 answers
2. asked by anonymous
3. 867 views
Consider the solid obtained by rotating the region bounded by the given curves about the line x = 4.x= 4y^2 , x = 4 Find the
1. 0 answers
2. asked by JESSICA
3. 865 views
In the experiment of Nucleophilic substitution reactions: Competing Nucleophiles1)what would happen if all the solids in the
1. 0 answers
2. asked by Jennifer
3. 864 views
The week before a big concert, five friends (Alvin, Bert, Chip, Dennis, and Ethan) stood in line to buy tickets. There were
1. 1 answer
2. asked by Joe
3. 863 views
Can you check the following sentences for me? Let me know how I can improve them, please.1) England was invaded by some Germanic
1. 1 answer
2. asked by Franco
3. 839 views
Where can I find information about Managed Health Care? I am also interested in its pros and cons.Also, where can I find
1. 2 answers
2. asked by Mercedes
3. 825 views
The US Senate consists of 100 senators, 2 from each state. A group of 5 senators is formed.1.) how many groups are possible?
1. 0 answers
2. asked by Jason Dunder
3. 824 views
can you help me to identify any rhetorical devises and its function in this sentence "I trust you have seen Janet's file and
1. 1 answer
2. asked by dee
3. 804 views
A train is travelling 20metres per second, accelerates at 0,5 cubic metres per second for 30 seconds.How far will it travel in
1. 0 answers
2. asked by Lutho
3. 801 views
A car battery is rated at 90A hr, meaning that it can supply a 90A current for 1 hr before being completely discharged.If you
1. 1 answer
2. asked by Anthony
3. 797 views
Which of the following is equal to the expression below?(7-5)3
1. 2 answers
2. asked by pretty grah
3. 781 views
2. Which statement best explains the effect of resources on population size?a. the exponential growth curve models the effects
1. 0 answers
2. asked by mysterychicken
3. 777 views
A man 2 m tall is walking away from a lamppost which is 6m tall at a rate of 2 m/s. Find the rate of change of a)the tip of the
1. 1 answer
2. asked by calculus
3. 776 views
29. CFCs are a problem because theya. have been released in large quantities in the past b. break down to reactive free chlorine
1. 5 answers
2. asked by mysterychicken
3. 775 views
what the purpose of the olympic torch/flame?The purpose of the olympic torch/flame is to give everyone the strength to protect
1. 4 answers
2. asked by Sara
3. 767 views
to cause a dry substance or solid ingreient to pass into solution in a liquid
1. 1 answer
2. asked by Clarissa
3. 730 views
When 0.667 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 108C is observed. Assume the
1. 1 answer
2. asked by blasting
3. 728 views
Find the length of the entire perimeter of the region inside r = 16sin(theta) but outside r = 4
1. 0 answers
2. asked by rao shahbaz
3. 723 views
I am doing my research paper on Character Anaylsis of Ethan Frome, from the novel "Ethan Frome". I need help with my thesis.
1. 1 answer
2. asked by pam
3. 721 views
Thank you very much for your last corrections!Could you possibly check these other sentences, too? Thank you. 1) In 43 AD the
1. 1 answer
2. asked by Franco
3. 718 views
2.0x10^13 electrons flow through a transistor in 1.0ms.What is the current through the transistor?
1. 2 answers
2. asked by Anthony
3. 714 views
How many grams of gaseous required?If 0.260 mol of solid C and 20.0 g of solid TiO2 are reacted stoichiometrically according to
1. 1 answer
2. asked by Louis
3. 702 views
Choose the correct command form. No __________ uds.esos zapatos sucios en la casa! (llevar)A. llevan B. lleven C. lleve D. lleva
1. 2 answers
2. asked by bob
3. 699 views
Todd's wieght went from 220 lbs to 190 lbs and Cassidy's wighte went from 150 lbs t?o 135 lbs. Who had the greater percentage of
1. 1 answer
2. asked by Andrea
3. 698 views
why does an air bubble rise to the surface of a glass of water
1. 5 answers
2. asked by pavleen
3. 697 views
Describe the many different methods of measuring healthy body weights and evaluate their accuracy. Don't forget to include
1. 0 answers
2. asked by lola
3. 684 views
iF YOU DIVIDE 30 BY ME, THE ANSWER IS 3 DOUBLED. WHAT NUMBER AM i >
1. 2 answers
2. asked by 3rd
3. 680 views
If 100 mL of a 3 M solution of sodium hydroxide is diluted to a total volume of 600 mL with distilled water, what will the final
1. 2 answers
2. asked by Brittany
3. 675 views
Two aqueous solutions of sucrose, C12H22O12, are mixed. One solution is 0.1495 M sucrose and has d = 1.018 g/mL; the other is
1. 1 answer
2. asked by anonymous
3. 668 views
Are these the correct way to write the spanish sentences? :- in the morning tommy and children greet each other. : In the
1. 1 answer
2. asked by kat
3. 665 views
What is the actual purpose of the Olympic rings. Isn’t the purpose of the rings to tell everyone that anyone is welcome to
1. 7 answers
2. asked by Sara
3. 660 views
In a game of Incan basketball, A points are given for a free throw and B points are given for a field goal, where A and B are
1. 0 answers
2. asked by bart
3. 660 views
The reaction of zinc and chlorine requires 0.00624 mol of Zn and 0.0125 mol of Cl to react exactly to form zinc chloride. What
1. 1 answer
2. asked by Cheryl
3. 649 views
A helicopter is ascending vertically with a speed of 5.20m/s. At a height of 125 m above the Earth, a package is dropped from a
1. 1 answer
2. asked by Aly
3. 643 views
I HAVE TO WRUTE AN ESSAY ON THE PROS AND CONS ON THE CIVIL RIGHTS MOVEMENT!
1. 4 answers
2. asked by Anonymous
3. 643 views

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