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Questions Asked on October 25, 2009

Suppose that in the same Atwood setup another string is attached to the bottom of m1 and a constant force f is applied,
1. 2 answers
2. asked by Rachel
3. 5,199 views
In Figure (a), a block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring
1. 3 answers
2. asked by Jin
3. 4,876 views
A quantity of N2 occupies a volume of 1 L at 290 K and 1.5 atm. The gas expands to a volume of 2.7 L as the result of a change
1. 2 answers
2. asked by .
3. 3,240 views
Are these correct?1. What is the formula mass for Mg(ClO3)2? mg=24.31 cl=35.45 x 2 = 70.9 o=16 x 6 = 96 24.31+70.9+96=
1. 2 answers
2. asked by Mattt K
3. 2,406 views
a 49 newton rockis lifted 2meters in 5 secondsHow much work is done? b what power is used?
1. 3 answers
2. asked by Barb
3. 2,139 views
For the reaction: H2(g) + I2(g) 2HI(g) , Kc = 12.3 at some temperature T. If [H2] = [I2] = [HI] = 3.21 x 10-3 M at this
1. 1 answer
2. asked by Jerry
3. 2,115 views
Which of the following will not increase the rate of a reaction? a. using a catalyst b.increasing the temperature c. decreasing
1. 1 answer
2. asked by Robert
3. 1,966 views
The equilibrium constant (Kc) for the gas phase reaction 2 NH3 N2 + 3 H2 is 3.0 x 10-3 at some temperature. The reaction is
1. 3 answers
2. asked by James
3. 1,955 views
a teacher pushed a 98 newton desk acrosss a floor for a distance of 5 meters she exerted a horizontal force of 20 newton How
1. 2 answers
2. asked by Barb
3. 1,864 views
maximum and minimum of y = cos(x) + sin (x)on the interval [0,2pi]
1. 5 answers
2. asked by Mark
3. 1,855 views
a student wo weighs 500 newtons climbed the stairs from the first floor to the third floor 15 meters above in 20 secondsA.how
1. 1 answer
2. asked by Barb
3. 1,712 views
a womans lifts a 300 newton child a distance of 1.5 meters and carries her forward for 6.5meters.how much work does the woman do
1. 2 answers
2. asked by Barb
3. 1,527 views
A certain string can withstand a maximum tension of 40 N without breaking. A child ties a 0.37 kg stone to one end and, holding
1. 1 answer
2. asked by umarah
3. 1,516 views
Compare and contrast the various sources of energy.---my teacher told me to do renewable and non-renewable. this is what i got:
1. 5 answers
2. asked by mysterychicken
3. 1,456 views
A sample of N2O effuses from a container in 48 seconds. How long would it take the same amount of gaseous I2 to effuse from the
1. 1 answer
2. asked by Kyle
3. 1,347 views
a racing dog is initially running at 10.0 m/s, but is slowing down. (a) How fast is the dog moving when its kinetic energy has
1. 1 answer
2. asked by sarah
3. 1,339 views
In spite of factors that tend to restrict cell size, some plant cells are very large. For example, some marine algae have cells
1. 2 answers
2. asked by bubba
3. 1,285 views
A golf ball of mass 4.6 g is struck by a golf club at a speed of 50 m/s. The ball has inital velocity ,v, in metres per second,
1. 1 answer
2. asked by Anonymous
3. 1,276 views
A delicatessen serves 13 kinds of sandwiches and 5 kinds of chips. How many different sandwiches and chip lunches can they make
1. 0 answers
2. asked by Rmz
3. 1,259 views
A techer pushed a 98 newton desk across a floor for a distance of 5 meters she exerted a horizontal force of 20 newtons. how
1. 3 answers
2. asked by Barb
3. 1,254 views
1. Checkpoint: Population Size• View the Ch. 7 Alien Invasion VLR located under the Week Four Materials section of your
1. 2 answers
2. asked by m
3. 1,250 views
Hi there I need help on my calculus homework and this week, we were working on partial derivative. I don't know how to approach
1. 1 answer
2. asked by shylo
3. 1,208 views
When the Supreme Court rules on an appeal from a state court, what restriction applies to the court's ruling?
1. 2 answers
2. asked by Jennifer
3. 1,188 views
List the possible rational roots of each equation. Then determine the rational roots.6x^4+35x^3-x^2-7x-1 The answer in the back
1. 0 answers
2. asked by Carl
3. 1,181 views
a box pushed across the floor for a dis tance of 5 meters with a force of 50 newtons in 5 secondhow much work is done? what is
1. 0 answers
2. asked by sherrie
3. 1,175 views
It is a 5 digit no. ,palindrome,divisible by 4,10 digit is cube root of 1 digit,product of 100 digit and 1 digit is 54 ,sum of
1. 1 answer
2. asked by Pooja
3. 1,163 views
Hi there I need help with one of the problem from my homework package. This week for my calculus class, we were learning how to
1. 0 answers
2. asked by shylo
3. 1,138 views
I have separated the paragraphs. Can you please tell me if I have missed anything, and how I can make it shorter if it seems too
1. 3 answers
2. asked by Sara
3. 1,134 views
What are the disadvantages of using coal as an energy source? what are the advantages and disadvantages of using oil as an
1. 1 answer
2. asked by mysterychicken
3. 1,128 views
a mr wikinson backpack weighs 45 pounds if there are 453.7grams in one pound what is the mass of his backpack?
1. 1 answer
2. asked by keria
3. 1,109 views
The parachute on a race car of weight 8850 N opens at the end of a quarter-mile run when the car is traveling at 31 m/s. What
1. 2 answers
2. asked by Melody
3. 1,042 views
A generator produces electrical power, P, in watts, according to the function:P(R)= 120/ (0.4 + R)^2 where R is the resistance,
1. 0 answers
2. asked by Anonymous
3. 1,032 views
Ozone is depleted in the stratosphere by chlorine from CF3Cl according to the following set of equations:CF3Cl + UV Light --->
1. 2 answers
2. asked by Kyle
3. 1,018 views
Draw Lewis dot structures, including appropriate resonance forms, and assign formal chargesto each of those structures, for the
1. 1 answer
2. asked by Emma
3. 992 views
Determine the seating capacity of an auditorium with 10 rows of seats if there are 10 seats in the first row, 16 seats in the
1. 1 answer
2. asked by Ellie
3. 990 views
Which of the following nitrogen oxide molecules and related ions is/are diamagnetic and has/have more than two charge-minimized
1. 3 answers
2. asked by Dave
3. 984 views
FeS + HCl yields FeCl2 + H2SBalanced Equation & Type of Reaction
1. 0 answers
2. asked by Alex
3. 895 views
A 0.24-kg object traveling rightward at 3.5 m/s collides head-on and elastically with a 0.40-kg object traveling leftward at 2.1
1. 2 answers
2. asked by Sandhu
3. 886 views
Most of us tend to accept the opinions of the authority because we believe that those who are in the position of authority are
1. 5 answers
2. asked by Tiffany
3. 864 views
A sign is supported by a cable and a horizontal beam.The beam has a length 1.4 m and a uniform mass of12 kg.a) If the cable is
1. 4 answers
2. asked by Sandhu
3. 861 views
I'm writing a paper about sedimentary rocks. My goal is 700 words but I'm stuck. can someone read this and let me know if I'm
1. 7 answers
2. asked by pooleboy
3. 848 views
a student who weighs 500 newtons climbed the stairs frim the first fkoor to the third floor 15 meters above in 20 secondHow much
1. 0 answers
2. asked by gary
3. 837 views
If a term paper consisted 42 pages,each containing 40 lines of 100 symbols each (counting each space as symbol)was to be encoded
1. 2 answers
2. asked by Ryan
3. 822 views
A rectangle has perimeter 64cm and area 23cm squared. Solve the following system of equations to find the rectangle's
1. 1 answer
2. asked by Anonymous
3. 793 views
How do you factor 1/2x^3-x so that the zeroes can be found? Thank you-Adriana
1. 3 answers
2. asked by Adriana
3. 771 views
[HELP WITH PART D PLEASE SCROLL DOWN] A 920 kg car is pulling a 300 kg trailer. Together, the car and trailer have an
1. 4 answers
2. asked by Ryan
3. 765 views
“If Mary and Tom are classmates, then they go to the same school.”Which statement below is logically equivalent? If Mary and
1. 1 answer
2. asked by Anonymous
3. 762 views
You own a bond that has an 8 percent coupon and matures 8 years from now. You purchased this bond at par value when it was
1. 0 answers
2. asked by Anonymous
3. 753 views
A 5 kg block is pushed up a 37 degree incline given an initialvelocity of 2 m/s at the base of a frictionless plane. The maximum
1. 1 answer
2. asked by Lindsey
3. 741 views
Suppose that in the same Atwood setup another string is attached to the bottom of m1 and a constant force f is applied,
1. 1 answer
2. asked by TPAIN
3. 737 views
Write a 700-word paper in APA format that provides an overview of how plate tectonics affects sedimentation. Answer the
1. 2 answers
2. asked by Davey
3. 734 views
•Writing Assignment: prepare for this assignment by reading Chapter 8 Read all three scenarios and identify which blood
1. 2 answers
2. asked by bobbi
3. 725 views
in questions 1 and 2, write an equation of the line in slope-intercept form.1. the slope is -4/3; the y-intercept is -2. 2. the
1. 1 answer
2. asked by rachel
3. 717 views
A few practice ?'s on my study guide that I'm stuck on.Put these in the correct sequence for phagocytosis? chemotaxis,
1. 0 answers
2. asked by Help w/ study guide!
3. 713 views
Why does water solubility of monofunctional, polar organic compounds rapidly diminish above four or five carbons?
1. 1 answer
2. asked by Cerise
3. 693 views
I would be grateful if someone could please review these and tell me if I am correct. Thanks!1.What is the empirical formula for
1. 1 answer
2. asked by Mattt K
3. 692 views
A 1 g grasshopper and a 0.1 g cricket leap vertically into the air with the same initial speed in the absence of air which of
1. 2 answers
2. asked by Adam
3. 692 views
What is the difference between memoirs and biographies????????????
1. 1 answer
2. asked by Sumaiya
3. 689 views
Methanol boils at 65Celcius. The vapor pressure of ethanol at 65Celcius is at 410 torr. for a mixture containing .200 mol of
1. 0 answers
2. asked by Cerise
3. 688 views
3q2+5q+300Find the marginal and average cost functions. Show that AC is at its minimum when q = 10 and that MC = AC at this
1. 1 answer
2. asked by cb
3. 666 views
Which statement is logically equivalent to ~a �¨ b?a �¨ ~b b �¨ ~a ~b �¨ a ~b �¨ ~a
1. 1 answer
2. asked by Anonymous
3. 666 views
3.Describe 3 events that happened during these years (Reign of Terror).The Reign of Terror was a period of violence in the
1. 1 answer
2. asked by Sara
3. 659 views
SO2 can be drawn as a molecule which satisfies the octet rule (using one double bond anda single bond) or as an expanded octet
1. 2 answers
2. asked by Adam
3. 655 views
(a).A 220-kg sleigh is pulled by one horse at constant velocity for 0.90 km on a snowy, horizontal surface, the coefficient of
1. 1 answer
2. asked by Sandhu
3. 654 views
EC= eye colorRFL= ring finger longer RFNL= ring finger not longer EC RFL RFNL Total Blue 20 17 37 Brown 27 22 49 Green 15 7 22
1. 1 answer
2. asked by CM
3. 652 views
Using Literary Elements, Can You Compare And Contrast Abigail Adams' Letter To Her Daughter With Jean De Crevecoeur's Essay From
1. 2 answers
2. asked by Anonymous
3. 652 views
What is the coefficient for H2O when the following equation is balanced: Mg3N2 + H2O → Mg(OH)2 + NH3?When the following
1. 1 answer
2. asked by Andrea
3. 651 views
a 715 N person walks up three flights of stairs, covering a total vertical distance of 10.5 m. (a) If, as is typical, only 20%
1. 3 answers
2. asked by physics student
3. 647 views
An object travels 6m in the first second of travel, 6m again durning the second second of travel, and 6m again druning the third
1. 2 answers
2. asked by Caitlyn
3. 645 views
Today, Mark invested $5,000 into an account that guarantees 7.50% p.a., compounded monthly and Madonna invested $5,000 into
1. 1 answer
2. asked by tiff
3. 639 views
6.What event concluded the Reign of Terror?Robespierre's death concluded the reign of terror. Oppositon leaders united their
1. 4 answers
2. asked by Sara
3. 639 views
6. Prove that f(x) = (3/4)x^4 + 2 and g(x) = (4sqrt(108x-216))/3 are inverses.I know you solve it with composite functions
1. 3 answers
2. asked by Emily
3. 634 views
Why is pure water neutral?I think its because its neither acidic nor alkaline hence it has a PH of exactly 7 due to the presence
1. 4 answers
2. asked by Anonymous
3. 628 views
a fisherman reels in 12.0 m of line while landing a fish, using a constant forward pull of 25.0 N. How much work does the
1. 1 answer
2. asked by steve
3. 627 views
A piano whose mass is 106 kg is being lifted at a steady speed from ground level straight up to an apartment 12.4m above the
1. 2 answers
2. asked by lawless
3. 625 views
Who am I? If you multiply me by 6 and subtract 11, the result is 73.
1. 2 answers
2. asked by Rmz
3. 618 views
What factors determine whether a case will be tried in a state court or a federal court?
1. 1 answer
2. asked by Jennifer
3. 614 views
Mr. Smith has 17 18-cent notebooks and 7-cent pencils. The notebooks and pencils are worth $1.85. How many notebooks and how
1. 3 answers
2. asked by Anonymous
3. 606 views
please could someone hep me. for my assignment i need to write a newspaper article about cane toads in australia.i need to
1. 1 answer
2. asked by Scooter
3. 604 views
Why adding only characters to a text file may increase the file's size by several hundred bytes and at other times may not
1. 1 answer
2. asked by Ryan
3. 602 views
Trying to summarize the duties of the public duties of the physician as specified by law. I cant figure out how to put all that
1. 1 answer
2. asked by tamara jones
3. 597 views
A roller coaster ride includes a circular loop with radius R = 13.1 m. What minimum speed must the car have at the top to stay
1. 1 answer
2. asked by A
3. 597 views
write an equation of the line that is parallel to the given line and passes through the given point.y=-4x-7, (5,-3) y=-2/3x+4,
1. 1 answer
2. asked by <3
3. 595 views
thankyou for the websites you found the last one was perfect it helped alot thankyou again :)
1. 0 answers
2. asked by Scooter
3. 588 views
A generator produces electrical power, P, in watts, according to the function:P(R)= 120/ (0.4 + R)^2 where R is the resistance,
1. 1 answer
2. asked by Anonymous
3. 587 views
do you agree with what the writer has said in "the story of an hour" by kate chopin. why or why not.
1. 2 answers
2. asked by carla
3. 581 views
what would the graph of this look likexy<0
1. 1 answer
2. asked by lyne
3. 577 views
1. Walking in the park, I saw Mina.2. When I walked in the park, I saw Mina. 3. When I was walking in the park, I saw Mina.
1. 2 answers
2. asked by Tom
3. 577 views
what does it mean to have a constant acceleration does that mean that a= 0 or a=x?I particularly need help with::::>> Suppose
1. 2 answers
2. asked by Brit
3. 573 views
Arectangle has perimeter 64cm and area 23cmsquared. Solve the following system of equations to find the rectangle's dimensions.
1. 4 answers
2. asked by Ariza
3. 571 views
The number of dogs and chickens add up to 14. The number of legs between them is 36. How many dogs and how many chickens are on
1. 0 answers
2. asked by Rmz
3. 564 views
Richard's age in 7 years will be twice what it was 19 years ago. How old is Richard now?
1. 2 answers
2. asked by Bob roboto
3. 562 views
You have decided to buy a car that costs $34,100. The dealer offers you a 5-year loan with monthlypayments of $695 per month.
1. 0 answers
2. asked by London
3. 561 views
For my past post, you gave me this whole stuff for plagarism, ect. and i agree i needed to put them in my own words but this is
1. 2 answers
2. asked by mysterychicken
3. 554 views
A vector field with a vector potential has zero flux through every closed surface in its domain. it is observed that although
1. 0 answers
2. asked by Tom
3. 553 views
1. As he was sick, he could not go out.2. Being sick, he cound not go out. 3. Sick, he could not go out. (Are they all the same?
1. 1 answer
2. asked by Tom
3. 553 views
Can someone help with the following: I know how to get the MC and AC; however I'm not sure on the algabraic part.Given the
1. 2 answers
2. asked by cb
3. 552 views
I distributed 3x^2+x-10=f(x) to find the zeroes. My book's answer was (3x-5)(x+2). When I distributed this to make sure I got
1. 1 answer
2. asked by Adriana
3. 550 views
a 49 newton rock is lifted in 5 seconds A. how much work is done?B.what power is used? How do you write this question out
1. 1 answer
2. asked by gary
3. 549 views
please help, I really appriciate you help alot.Question:A 0.34 kg particle has a speed of 2.0 m/s at point A and kinetic energy
1. 1 answer
2. asked by Chan
3. 548 views

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