Sunday
December 21, 2014

Posts by abby


Total # Posts: 680

math
what is A=____,b=8.1 mm,h=16mm
February 6, 2012

math
over 8 months,the value of Alana's investments dropped a total of $56. What integer value represents the average monthly change in the value of her investments?
January 30, 2012

physics
You are at a baseball game and the pticher throws a fast ball that accelerates to the batter at 50 m/s^2. Assume that the baseball has a mass of 0.15 kg. How much force (in Newtons) must the batter apply to the ball to lay down a perfect bunt that stops dead in front of home ...
January 22, 2012

physics
An electric motor lifts an elevator 1.1 m in 13.0 s by exerting an upward force of 7.80 x 104 N. What power does the motor produce in kW?
January 20, 2012

math
True or false? Explain, all multiples of 3 are composite
January 18, 2012

American Politics
why is New Hampshire such a critical state in the presidential selection process?
January 10, 2012

physics
A home run is hit in such a way that the baseball just clears a wall 25.0 m high, located a distance 125 m from home plate. The ball is hit at an angle of 38.0° above the horizontal, and air resistance is negligible. (Assume the ball is hit at a height of 1.0 m above the ...
December 6, 2011

math
object is oblong measure's 16" round and tapers and is 21" round at wides whats the volume???
December 4, 2011

Chemistry
How would I make the VSEPR for potassium iodide (KI) I believe I made the right Lewis Structure, but am confused on what geometry a VSEPR structure would be. Thanks!
November 30, 2011

Physics
a) What will an object weigh on the Moon's surface if it weighs 500 N on Earth's surface? (b) How many Earth radii must this same object be from the center of Earth if it is to weigh the same as it does on the Moon? Alright, I know how to do part a. but I'm having ...
November 27, 2011

early childhood education
a teacher requests that a child use a small stepladder to reach a book on a shelf she is helping the child develop a)primitive reflexes b)movement qualities c)locomotor reflexes d)spatial awareness i put b which of the following is an example of a closed skill a)striking a ...
November 6, 2011

math
Well you forgot a part of the question so that doesnt help me at all
November 3, 2011

early childhood education
a childs ability to jump for distance is an example of a)agility b)flexibility c)explosive power d)reaction time i put b am i correct a child who has to struggle to climb into a chair is confronting an.......... hazard a)biological b)physical c)ergonomic d)environmental i put ...
November 1, 2011

simplify
simplify by removeing the factors of 1 7z-49/7z is the answer -7?
October 27, 2011

U.S. History
Gabriel Prosser’s rebellion was... a. a revolt by farmers in western Pennsylvania b. a revolt by enslaved people in Virginia c. a revolt by followers of Jefferson d.a revolt by citizens in Kentucky
October 27, 2011

MATH HEPL
lisa can shovel the drive way in 35 minutes john the same driveway in 45 how long will it a\take3e them together?
October 27, 2011

Help
lisa can shovel the drive way in 35 minutes john the same driveway in 45 how long will it a\take3e them together?
October 27, 2011

Help
Divide and simplify 6a+18/a-3 divide by a+3/a-4 I got 6a-24/a-3
October 27, 2011

Math
solve 6/y+4=5/y-4
October 26, 2011

Math
Determine whether the following statement makes sense or does not make sense, and explain your reasoning: When I'm trying to determine end behavior, it's the coefficient of the leading term of a polynomial function that I should inspect. A) This makes sense because the...
October 23, 2011

math
2160-500=1660 1660 divide by 20=83
October 18, 2011

spelling??
thank you Ms.Sue
October 18, 2011

spelling??
need a word with 5 letters, 3rd letter is a "g" the riddle is "amazing tricks that seem real"
October 18, 2011

MATH (PLease HELp)
i think the answer is 3 nickels .15 9 dimes .90 18 quarters 4.50 total 5.50
October 18, 2011

physics
Tangential velocity=radius of circle -:- angular speed=4-:-2=2m/s
October 18, 2011

writting
Thank you Ms. Sue and Writeacher.
October 10, 2011

writting
looking for help with apostrohe catastrophe in the following it is, use_________. if not,use_______ there is, use______. if not,use_______ who is, use________. if not, use______ they are, use______. if not, ____ or __ you are, use_______. if not, use_______ let us, use________...
October 10, 2011

Math
Find b such that (8x+1/b)-2=x has a solution set given by {3}. b =
October 4, 2011

antonyms
looking for antonym for "all" needs to be seven letters the 6th letter is an "n"
October 1, 2011

physics
Harry accidentally falls out of a helicopter that is traveling at 80 m/s. He plunges into a swimming pool 4 seconds later. Assuming no air resistance, what was the horizontal distance between Harry and the swimming pool when he fell from the helicopter?
September 29, 2011

accounting
Marks: 20 At the beginning of the fiscal year, ABC Clinic expected to treat 10,000 patients and estimated that it would incur $1,000,000 in overhead. At fiscal year end data indicated that the clinic only saw 9,000 patients and incurred overhead of $925,000.If the clinic used ...
September 28, 2011

Fractions
solve 9/10(3+8x)+3¡Ý15 How do you multiply the fraction?
September 23, 2011

Geometry
Two supplementary angles are in the ratio 7:11. Find the measure of the smaller angle.
September 22, 2011

Science
Why whales live in oceans?
September 21, 2011

Science
Ibook batteries last for 5 hours What is the independent and dependent variable? What is the control group?
September 12, 2011

Physics
Simpson drives his car with an average velocity of 45.1 km/h to the east. How long will it take him to drive 153 km on a straight highway? Answer in units of h
September 8, 2011

math
Help
September 1, 2011

Language
Thank you so much! May i ask what you do for a living?
August 29, 2011

Language
I think its , danced across the sky
August 29, 2011

Language
What is the predicate in the following sentences? The glowing stars danced across the sky. Camping is a lot of fun when you have a friend with you.
August 29, 2011

math
what is 8+10+2/12+4/9 in lowest term if possible
July 30, 2011

Chemistry!
A Galvanic cell runs on the following reaction: Co (s) + Cu2+ (aq) → Co2+ (aq) + Cu (s) Draw a diagram for this Galvanic cell, labeling the electron flow, the anode and cathode, and the positive and negative sides of the Galvanic cell.
June 30, 2011

ANOTHER SCIENCE
Consider the following reaction that has reached equilibrium: NH3 (aq) + C2H4O2 (aq) ! NH4+ (aq) + C2H3O2- (aq) ∆H = -102.1 kJ a. What will happen to the concentration of NH4+ (aq) if the temperature is raised? b. What will happen to the concentration of NH4+ (aq) if the...
June 30, 2011

Science
The following reaction: 2SO3 (g) ! 2SO2 (g) + O2 (g) has an equilibrium constant equal to 0.23 M. If the following concentrations are present: [SO2] =0.480 M, [O2] = 0.561 M, [SO3] = 0.220 M, is the reaction at equilibrium? If not, which way must it shift to reach equilibrium?
June 30, 2011

Chemistry
Write a balanced net ionic equation for the oxidation of metallic copper to Cu(II) ion by hot concentrated H2SO4, in which the sulfur is reduced to SO2
June 29, 2011

Chemistry
moles would be 118g divided by 342.3?
June 29, 2011

chemistry
0.5 M1V1=M2V2
June 27, 2011

chemistry
how many milliliters of hydrogen at 0 degree C and 1400 mmhg are produced if 15g of magnesium reacts with sulfuric acid?
June 16, 2011

math
0.00186 L of SO2
May 25, 2011

Math
M=1.05
May 6, 2011

Math
1.05
May 6, 2011

Algebra
Members of the Lake Shawnee club pay $40 per summer season plus $7.50 each time they rent a boat. Nonmembers pay $12.50 each time they rent a boat. How many times would both a member and a nonmember have to rent a boat in order to pay the same amount?
May 6, 2011

creative writing
Is there a personification example in the song: Did You Ever Know That You're My Hero
May 5, 2011

Math
Perform the following multiplication. Be sure answers are reduced to lowest terms. (Enter as an improper fraction.) 2 1/2 x 1 3/8 =
May 3, 2011

physics
Suppose Fuzzy, a quantum mechanical duck, lives in a world in which h = 2π J.s. Fuzzy has a mass of 2.0 kg and is initially known to be within a region 1.0 m wide. a) What is the minimum uncertainty in his speed? b) Assuming this uncertainty in speed to prevail for 5.0 s...
April 8, 2011

Physics
Electrons in a beam incident on a crystal at an angle of 30ͦ have kinetic energies ranging from zero to a maximum of 5500 eV. The crystal has a grating space d=0.5 Aͦ, and the reflected electrons are passed through a slit .Find the velocities of the electrons passing...
April 7, 2011

Physics
Suppose Fuzzy, a quantum mechanical duck, lives in a world in which h = 2π J.s. Fuzzy has a mass of 2.0 kg and is initially known to be within a region 1.0 m wide. a) What is the minimum uncertainty in his speed? b) Assuming this uncertainty in speed to prevail for 5.0 s...
April 7, 2011

Physics
it is π (pi)
April 7, 2011

Physics
Suppose Fuzzy, a quantum mechanical duck, lives in a world in which h = 2 J.s. Fuzzy has a mass of 2.0 kg and is initially known to be within a region 1.0 m wide. a) What is the minimum uncertainty in his speed? b) Assuming this uncertainty in speed to prevail for 5.0 ...
April 7, 2011

Physics
Electrons in a beam incident on a crystal at an angle of 300 have kinetic energies ranging from zero to a maximum of 5500 eV. The crystal has a grating space d=0.5A0, and the reflected electrons are passed through a slit .Find the velocities of the electrons passing through ...
April 5, 2011

Physics
An air rifle is used to shoot 1.0 g particles at 100 m/s through a hole of diameter 2.0 mm. How far from the rifle must an observer be to see the beam spread by 1.0 cm because of the uncertainty principle? Compare this answer with the diameter of the universe (  1026 m).
April 5, 2011

Physics
To what voltages must we accelerate electrons (as in an electron microscope, for example) if we wish to resolve; a) a virus of diameter 12 nm , b) an atom of 0.12 nm, c) a proton of diameter 1.2 fm?
April 4, 2011

Physics
Electrons in a beam incident on a crystal at an angle of 300 have kinetic energies ranging from zero to a maximum of 5500 eV. The crystal has a grating space d=0.5A0, and the reflected electrons are passed through a slit .Find the velocities of the electrons passing through ...
April 3, 2011

Physics
Two converging lenses with focal lengths 5 cm and 30 cm are placed 35 cm apart. Rays from a very distant object are impinged on the lens system parallel to the principal axis. What is the refractive power of the combination of these two lenses?
March 26, 2011

Pre Calc
Thanks so much guys!!!!
March 23, 2011

Pre Calc
tan(x)=5 sin(x) for interval -π < x < π A) 0, 1.571 B) -1.571, 0, 1.571 C) -1.369, 0, 1.369 D) 0, 1.369
March 23, 2011

geometry
A guy wire is attached to the top of a 75 meter tower & meets the ground at a 65 degree angle. How long is the wire?
March 23, 2011

Math
tan(x)=5 sin(x) for interval -π < x < π
March 23, 2011

Physics
A photon of energy E strikes an electron at rest undergoes pair production, producing a positive electron(positron) and an electron, photon+electron produce positron+electron+electron The two electrons and the positron move off with identical momenta in the direction of the ...
March 22, 2011

Physics
The temperature of your skin is approximately 35C degrees. What is the wavelength at which the peak occurs in the radiation emitted from your skin?
March 22, 2011

chemistry
you must prepare 300 mL of .750M NaBr solution using 2M NaBr stock solustion. how many mL of stock solution should you use?
March 17, 2011

apples
Is the saying "an apple a day keeps the doctor away" true?
March 14, 2011

Etymology
Thankyou!
March 13, 2011

Etymology
I am doing a project on Fascinating Etymology Stories and was wondering if you guys know of any good websites with interesting stories of the origin of words, preferrably not words that came from a persons name. Thanks:)
March 13, 2011

etymology
how did wrigley come up the orbit. not the actually product but i need to know the orgin of the product name orbit. thanks:)
March 13, 2011

chem
Determine the volume of 0.240 M KOH solution required to neutralize each of the following samples of sulfuric acid. The neutralization reaction is shown below. H2SO4(aq) + 2 KOH(aq)--> K2SO4(aq) + 2 H2O(l) (a) 26 mL of 0.240 M H2SO4 thanks
March 11, 2011

science
determine the molar concentration of Ca^2+ and Cl- in a .075 M CaCl2 solution
March 9, 2011

chemistry
Calculate the molarity of each of the following solutions. 1. 61.9 g of C2H6O in 3.4 L of solution
March 9, 2011

5th grade math
this is soooooooooooooo BORING
February 25, 2011

History
If you could summarize the fighting in the Soviet Union between 1941 and 1944 into one sentence what would you say??
February 21, 2011

child day care management,health,safety,and nutrit
which of the following are the three major types of knowledge identified by piaget
February 16, 2011

physical
A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 142-kg laser sensor that measures the thickness of the ice (see the drawing). The helicopter and the sensor both move only in the horizontal direction and have a horizontal acceleration of ...
February 2, 2011

Chemistry
Kinetic energy is calculated from the formula KE = (1/2)mv2. Suppose a mass of 14.2 kg (m = 14.2 kg) is moving with a velocity of 750. ms-1 (v = 750. meters per second). Calculate the kinetic energy of this mass in units of Joules.
January 25, 2011

Physics
This is a conservation of angular momentum problem. Now, the formula for angular momentum is: L = Iw So basically, L before = L after: I1w1 = I2w2 The trick to solving these is to figure out what the change in moment of inertia is, and then apply the concept of conservation of...
January 23, 2011

science
if an astraunout could jump 40 cm on jupiter how high could he ir she jump on earth how about the moon also????? pleese help me im stuck on this question
January 9, 2011

Math
Thanks Ms. Sue
January 9, 2011

Math
$260
January 9, 2011

Math
Lyla deposited $250 in an account earning 4% simple interest. At the end on one year, how much was in the account, assuming no more deposits or withdrawals?
January 9, 2011

Math symbols
thank you!!!! :) :) :)
December 20, 2010

Math symbols
thanks and do you know what "*" means in math?
December 20, 2010

Math symbols
What does * mean in math? thanks for ur help Abby
December 20, 2010

statistics
Scores on the ACT test are normally distributed with a mean of 21.1 and a standard deviation of 4.8. If one ACT score is randomly selected, find the probability that it is greater than 20.
December 14, 2010

physics
how much work is being done if a 100 N box is lifted 3 meters off the ground???
December 10, 2010

7th grade
I am doing a battle chart in history class the I need to know who won the Gonzales battle Also i need the mexican leader and the texas leader and who won on in the battle of the concepcion and where the goliad battle took place and when it took place also i need all the grass ...
December 9, 2010

math
what multiplication fact could you use to find a number that can be divided evenly by 8 and by 9
December 9, 2010

us history
I need help finding information about the Industrial revolution. How it impacted American society economically, socially, politically, and morally. This needs to be a 500 word essay. Thanks for the help! :)
December 6, 2010

Physics HELP!
how is this equation right? when i multiplied all those numbers to get T1 i got a huge number...to plug it back in for T2 i would get a negative number...
December 5, 2010

physical science with earth science
Write a balanced chemical equation for the reaction for propane C3H8 burning in oxygen to for carbon dioxide and water vapor
December 2, 2010

math
880
December 1, 2010

science
A place or object used for comparion to determine whether something is in motion is called what?
December 1, 2010

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