Archives
2012
February

Questions Asked on February 27, 2012

zi drive 420 miles to visit her sister. after she had diven one-third of the way there, she stopped to eat lunch. how many miles
1. 1 answer
2. asked by nehila
3. 445 views
How do I find the indefinite integral of cosx/(1-cos^2 x)dx?
1. 1 answer
2. asked by Courtney
3. 425 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. 1 answer
2. asked by cher
3. 708 views
Suppose that when you ride on your 7.90-kg bike the weight of you and the bike is supported equally by the two tires. If the
1. 0 answers
2. asked by Adrianna
3. 817 views
how many grams of potassinum nitrate are produced from 81.6kg of potassinum chloride and 40.8 kg of hydrogen nitrate?4KCl+4HNO3+
1. 1 answer
2. asked by rk
3. 444 views
solve for the roots of the quadratic equation2(x^2 - 4x + 5)=x^2 - x
1. 1 answer
2. asked by omar
3. 438 views
A football kicked with an initial speed of 23.1m/s reaches a maximum height of 16.9m. At what angle was the ball kicked? What
1. 0 answers
2. asked by Brandi
3. 1,038 views
What is the mole fraction of NaOH in an aqueous solution that contains 20.5% NaOH by mass?
1. 1 answer
2. asked by Anonymous
3. 792 views
why was the nile so valuable for trade and transportation
1. 1 answer
2. asked by zavier
3. 464 views
The Earth has an angular speed of 7.272 10-5 rad/s in its rotation. Find the new angular speed if an asteroid (m = 1.07 1022 kg)
1. 1 answer
2. asked by huiol
3. 734 views
The frequency of oscillation of the wave emitted by an FM radio station is 80.9 MHz. Find the period of vibration. Radio waves
1. 0 answers
2. asked by amanda and leah
3. 691 views
A 25,000 kilogram train is traveling down a track at 20 meters per second. A cow wanders onto the tracks 75 meters ahead of the
1. 0 answers
2. asked by TRACY
3. 529 views
A 7 kilogram bowling ball is dropped from a fourth story window. If each story is 3 meters high, use energy conservation (not
1. 1 answer
2. asked by TRACY
3. 555 views
a 1500kg sports car accelerates from 0 to 30 m/s in 8 seconds. Whaat is the power of its engine? Please help
1. 1 answer
2. asked by TRACY
3. 466 views
A river is moving at 4.0 m/s [s] , and a swimmer swims across it at 1.4 m/s [e] relative to the water. What is the swimmers
1. 1 answer
2. asked by Melissa
3. 519 views
A homeowner wants to plant a garden in his backyard. He decides to have 375 square feet garden and wants the garden to be 10
1. 2 answers
2. asked by cris
3. 728 views
why did the egyptians embalm bodies
1. 1 answer
2. asked by zavier
3. 531 views
A river is moving at 4.0 m/s [s] , and a swimmer swims across it at 1.4 m/s [e] relative to the water. What is the swimmers
1. 1 answer
2. asked by Melissa
3. 653 views
What is the volume of CO2 at 25 degrees C and 1.3atm if 10.0g of Cburns at STP?
1. 1 answer
2. asked by angelica
3. 421 views
what are the cultural diffusions between japan and korea
1. 0 answers
2. asked by Anna
3. 298 views
my answer is 63.56. i don't know if its right answer. here this problem:It takes Scott an average of 45 min to prune 1 tree.
1. 1 answer
2. asked by cynthia
3. 539 views
what items were found inside pyramids ?
1. 3 answers
2. asked by zavier
3. 358 views
why was the reign of ramses 2 so successful?
1. 2 answers
2. asked by zavier
3. 368 views
you are standing in a canyon. you shout and hear an echo 2 seconds later. what can you tell me about the width of the canyon?
1. 1 answer
2. asked by Regina
3. 1,417 views
Analyze the changes in global commerce between 1750 and 1900 due to changes in technology, communication, and economic theory.
1. 1 answer
2. asked by Emily
3. 1,020 views
A block mass m1 lying on a frictionless inclined plane is connected to a mass m2 by a massless cord passing over a pulley.1.)
1. 1 answer
2. asked by Anon
3. 1,818 views
what were the accomplishments of queen hatshepsut?
1. 1 answer
2. asked by zavier
3. 346 views
the effect of channel presentation and type of processing on recall of meaningful words
1. 1 answer
2. asked by akweley
3. 417 views
okay so the equation is -4.9t^2 - 39.2t + 1.6If the rockets explode at the highest point (which max height is 80 meters) One of
1. 0 answers
2. asked by Marisol
3. 577 views
why did the egyptians have such great respect for the pharaohs ?
1. 2 answers
2. asked by zavier
3. 556 views
what is symbolic reasoning?Please help and explain. Thank you!
1. 1 answer
2. asked by saranghae12
3. 478 views
what is Kc for 2NOBr-->2NO+Br2 when the temperature is 1000K and the Kc is 1.3x10^-2
1. 1 answer
2. asked by Anonymous
3. 662 views
A winch is used to drag a 375 N crate up a ramp at a constant speed of 75 cm/s by means of a rope that pulls parallel to the
1. 1 answer
2. asked by dillion
3. 1,443 views
A husband and Wife take turns pulling their child in a wagon along a horizontal sidewalk. Each exerts a constant force and pulls
1. 1 answer
2. asked by Natasha
3. 1,407 views
sin [sin -1 (7/25) - cos -1 (-8/17)]
1. 1 answer
2. asked by Ansley
3. 1,079 views
A mass m1 on a horizontal shelf is attached by a thin string that passes over a frictionless pulley to a 2.5 kg mass (m2) that
1. 0 answers
2. asked by J
3. 870 views
The string of a conical pendulum is 54.5 cm long and the mass of the bob is 0.22 kg.a) Find the angle between the string and the
1. 1 answer
2. asked by J
3. 832 views
can a trapezoid have equal sized bases?
1. 3 answers
2. asked by samantha
3. 371 views
Solve for x. 9-4x<-3
1. 1 answer
2. asked by anonymous
3. 319 views
r=40-2t shows the relationship between the average rate of speed, r, of a car in meters per second, and the time, t,in seconds,
1. 1 answer
2. asked by annie
3. 417 views
(2.50mL)(0.10M) / 75.00mL = 0.003333Im not sure how many sig figs to use. Would it 3.33e-3?
1. 1 answer
2. asked by Hannah
3. 409 views
An airplane flying with the wind can cover a certain distance in a = 3 hours. The return trip against the wind takes b = 4.5
1. 2 answers
2. asked by Libuse
3. 2,183 views
Mr. Jaskson's lunch cost $8.00 plus 8% sales tax. He tipped the server 15% of total bill after sales tax was added. How much did
1. 3 answers
2. asked by erica
3. 569 views
A collection of nickels, dimes, and quarters amounts to $9.50. If there are 130 coins in all and there are twice as many dimes
1. 1 answer
2. asked by Libuse
3. 728 views
A 528 kg automobile is moving at 20.4 m/s at a height of 5.0 m above the bottom of a hill when it runs out of gasoline. The car
1. 1 answer
2. asked by opp
3. 504 views
6 hour have to change to minute. i hate words problem.so here the problem: Two candles are the same length. One candle takes 6
1. 2 answers
2. asked by deadlove
3. 620 views
a large 1.5 x 10^6liter tank contains water polluted with lead (II) nitrate at a molarity concentraion of2.5 x 10^-6 M to the
1. 4 answers
2. asked by tom
3. 827 views
[H^+] = 2.7 x 10^-3Calculate for [OH^-] [OH^-] = ? M
1. 2 answers
2. asked by Matt
3. 387 views
a landscaper uses square tiles to make garden paths the ends of the paths are always 2 tiles wide, and the center portions of
1. 1 answer
2. asked by bri
3. 871 views
Photographic film contains silver bromide in gelatin. Once exposed, some of the silver bromide decomposes, producing fine grains
1. 2 answers
2. asked by Denisha
3. 3,328 views
okay so the equation is -4.9t^2 - 39.2t + 1.6If the rockets explode at the highest point (which max height is 80 meters) One of
1. 1 answer
2. asked by Marisol
3. 533 views
A right triangle with hypotenuse y and equal legs of size x has a perimeter of 36m. Express the area of the triangle solely in
1. 1 answer
2. asked by Nurcan
3. 1,108 views
Given the function f(x,y)=y/(x^2+y^2), give and identify the level curves for k=1, k=1/2, and k=1/4, and draw a contour map
1. 1 answer
2. asked by Anonymous
3. 530 views
The degree of polarity of a bond is indicated by1) ionization energy difference 2) the shape of the molecule 3)
1. 2 answers
2. asked by Anonymous
3. 1,039 views
A steroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid
1. 0 answers
2. asked by Natasha
3. 631 views
A 7 kilogram bowling ball is dropped from a fourth story window. If each story is 3 meters high, use energy conservation (not
1. 0 answers
2. asked by TRACY
3. 1,073 views
a 1500kg sports car accelerates from 0 to 30 m/s in 8 seconds. Whaat is the power of its engine? Please helppower= work/time=
1. 0 answers
2. asked by TRACY
3. 530 views
what isw the density of N2O,a gas at STP?
1. 2 answers
2. asked by CARMEN
3. 2,079 views
In Dante's inferno, why does Dante have to get rid of his feelings of sympathy and pity toward sin and sinners in order to grow?
1. 1 answer
2. asked by Karen
3. 604 views
I have to calculate the concentration of I2 produced (# of moles of I2 produced / L) based on the stoichiometric ratio in the
1. 4 answers
2. asked by Hannah
3. 1,143 views
compare ionotropic and metabotropic receptor channels in both structure and function
1. 0 answers
2. asked by Laci
3. 372 views
discuss spatial and temporal summation
1. 0 answers
2. asked by hannah
3. 333 views
discuss Clostridium Botulism and Clostridium Tetanus, and how they interfere with SNARE proteins.
1. 0 answers
2. asked by brent
3. 379 views
A 2.9-kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the
1. 0 answers
2. asked by opp
3. 821 views
. Each week during the first half of the semester, a sample of 50 students was polled todetermine how many of them had their
1. 1 answer
2. asked by tim
3. 579 views
A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and
1. 1 answer
2. asked by renee
3. 688 views
(0.80M)(5.00mL) = c2 (75.00mL)c2 = 5.33e-2 M Is the correct amount of sig figs?
1. 4 answers
2. asked by Hannah
3. 624 views
A capacitor consisting of two parallel plates of area A = 4.6 m2 and spacing d = 0.150 m is filled with two parallel slabs of
1. 0 answers
2. asked by Meghan
3. 941 views
A motorist driving a 1100-kg car on level ground accelerates from 20.0 m/s to 30.0 m/s in a time of 5.6 s. Neglecting friction
1. 0 answers
2. asked by opp
3. 394 views
A 1.00e2kg crate is being pushed across a horizontal floor by a force of P that makes an angle of 30.0 degrees below the
1. 0 answers
2. asked by Natasha
3. 753 views
How much work is needed to lift an object with a mass of 51.0 kg to a height of 2.00 meters? Calculate your answer in JoulesAn
1. 1 answer
2. asked by Anonymous
3. 922 views
For the quadratic surface defined by 36x^2-72x-9y^2-36y-16z^2+96z-288=0Put the surface into standard form and identify the
1. 2 answers
2. asked by Lucy
3. 529 views
There are four people that want to cross a bridge. Sam can cross in 1 minute, Joe can cross in 2, Jack can cross in 5, and Steve
1. 0 answers
2. asked by Jacob
3. 732 views
You are a chemist requested to review and analyse certain debris found on thebottom of aboot found in a crime scene. The debris
1. 1 answer
2. asked by Jimmy
3. 962 views
A hang glider moving at speed 9.0 m/s dives to an altitude 4.2 m lower. Ignoring drag, how fast is it then moving?
1. 1 answer
2. asked by opp
3. 892 views
Which type of bond is formed between two chlorine atoms in a chlorine molecule?1) polar covalent 2) nonpolar covalent 3)
1. 4 answers
2. asked by Case
3. 6,537 views
A 1289 Hz sound from the speaker enters a tube at point A.It then takes two paths, ACD or ABD. Minimum sound is heard when ACD
1. 0 answers
2. asked by Tom
3. 1,016 views
If acetic acid is the only acid that vinegar contains , calculate the concentration of acetic acid in the vinegar. if the pH of
1. 2 answers
2. asked by Taylor
3. 393 views
Under what conditions would an applied force increase the Kinetic energy of an object?
1. 0 answers
2. asked by Natasha
3. 320 views
A block of mass M = 6.755 kg is pulled along a horizontal frictionless surface by a rope of mass m = 0.592 kg, as shown in Fig.
1. 0 answers
2. asked by zach
3. 1,195 views
A uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0° above the horizontal. The weight of
1. 1 answer
2. asked by rachel
3. 589 views
Find the pH of mixture of acids. 0.185 M in HCHO2 and 0.225 M in HC2H3O2Im using an ice chart of weak acid and putting in strong
1. 3 answers
2. asked by L.Bianchessi
3. 4,189 views
Are there any symbols, crests or badges for online and regular support groups??
1. 5 answers
2. asked by Anonymous
3. 438 views
How do you solve this???foodbill:$18 salestax:%5 Tip:%20
1. 3 answers
2. asked by vick
3. 435 views
If 62.7 ml of .208M HCL is needed to needed to neutralize a solution of Ca(OH)2, how many grams of Ca(OH)2 must be in the
1. 2 answers
2. asked by Arianna
3. 959 views
The perception process involves three parts: listening, absorbing, and reacting.False A child growing up on a deserted island
1. 1 answer
2. asked by Anonymous
3. 615 views
Period:Asymptotes: Range: a) y= 2 sec (x) + 1 b) y= -2 csc (x - pi/2) c) y= 1 + tan (x + pi/4) d) y= 1/2 + csc (x - pi) + 1 e)
1. 2 answers
2. asked by Krystal
3. 648 views
AssignmentTesting a Theory Write at least 300 words describing a time when you had to test a theory. This theory may be
1. 5 answers
2. asked by shellie
3. 744 views
50g of H2SO4 produce how many grams of H2?
1. 1 answer
2. asked by charesse
3. 863 views
A pitcher throws a 0.111-kg baseball, and it approaches the bat at a speed of 37.4 m/s. The bat does 78.6 J of work on the ball
1. 0 answers
2. asked by Isaac
3. 686 views
Should I use a comma after story and after the question mark as shown below?“Have you ever read the story, ‘The Tell-Tale
1. 1 answer
2. asked by Al
3. 584 views
The drawing shows a skateboarder moving at 5.34 m/s along a horizontal section of a track that is slanted upward by 47.7 °
1. 0 answers
2. asked by Alexander
3. 606 views
The mass of the thread was neglected in the experiment. If this mass were 0.2 gram, estimate the largest error in the
1. 0 answers
2. asked by Priscilla
3. 453 views
20. The wheelchair ramp at the entrance of the Mission Bay Library has a slope of 1/18. What angle does the ramp make with the
1. 4 answers
2. asked by Ariel
3. 2,168 views
What mass of aluminum is produced by the decompisition of 7.47 kg of Al2O3?
1. 1 answer
2. asked by Cheery`
3. 716 views
A solution in which [H+] is 1000 times greater than [OH-][OH-] = ?M
1. 3 answers
2. asked by Matt D
3. 11,374 views
Determine how much you would be willing to pay for a bond that pays $60 annual interest indefinitely and never matures (i.e., a
1. 1 answer
2. asked by Raechell
3. 1,213 views
What is the range of 100, 95, 88, 0, and 87?
1. 1 answer
2. asked by Jean
3. 412 views
what test would you form to verify the presence of the Na+4 and the Po4,3-ion in plant food
1. 2 answers
2. asked by Anonymous
3. 710 views
given tanx= (1/2) and cscx<0, find cos2x
1. 1 answer
2. asked by Logan
3. 468 views

Back to February 2012

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2024