Archives
2010
February

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. 7,700 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. 5,103 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. 4,709 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. 4,401 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. 4,211 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. 3,687 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. 3,358 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. 3,263 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. 3,232 views
Why are small balloons cheaper than large balloons?
1. 7 answers
2. asked by Sakura
3. 3,077 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. 2,860 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. 2,774 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. 2,552 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. 2,527 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. 2,429 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. 2,341 views
Explain how to make a 1 Normal solution H3PO4.
1. 1 answer
2. asked by David
3. 2,216 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. 2,064 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. 2,061 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. 1,884 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. 1,870 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. 1,745 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. 1,573 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. 1,483 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. 1,444 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. 1,435 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. 1,432 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. 1,421 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. 1,328 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. 1,296 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. 1,278 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. 1,270 views
What tool/instrument is used to measure liquid volume?
1. 3 answers
2. asked by pavleen
3. 1,264 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. 1,259 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. 1,252 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. 1,251 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. 1,247 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. 1,231 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. 1,228 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. 1,210 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. 1,195 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. 1,174 views
What is the hidden word in the letters below:-aeeilnnstv Thanks
1. 2 answers
2. asked by MONA
3. 1,173 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. 1,167 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. 1,147 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. 1,130 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. 1,129 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. 1,123 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. 1,098 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. 1,085 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. 1,073 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. 1,062 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. 1,062 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. 1,038 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. 1,031 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. 1,015 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. 1,012 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. 1,003 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. 1,000 views
what does it mean when ur teacher says include a revised and proofread copy
1. 3 answers
2. asked by laura
3. 946 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. 936 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. 932 views
WHAT TASK COMPONENT DISTINGUISHES THE WECHSLER SCALES FROM SBIS?
1. 1 answer
2. asked by tea scott
3. 898 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. 877 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. 863 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. 857 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. 855 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. 855 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. 852 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. 822 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. 815 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. 808 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. 798 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. 792 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. 787 views
Which of the following is equal to the expression below?(7-5)3
1. 2 answers
2. asked by pretty grah
3. 779 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. 768 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. 766 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. 765 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. 760 views
to cause a dry substance or solid ingreient to pass into solution in a liquid
1. 1 answer
2. asked by Clarissa
3. 719 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. 718 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. 718 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. 714 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. 707 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. 705 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. 694 views
why does an air bubble rise to the surface of a glass of water
1. 5 answers
2. asked by pavleen
3. 693 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. 684 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. 682 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. 678 views
iF YOU DIVIDE 30 BY ME, THE ANSWER IS 3 DOUBLED. WHAT NUMBER AM i >
1. 2 answers
2. asked by 3rd
3. 676 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. 666 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. 661 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. 661 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. 654 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. 654 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. 640 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. 637 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. 636 views

Back to February 2010

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2025