Tuesday
October 21, 2014

Posts by Leslie


Total # Posts: 625

Physics
A student throws a baseball at a large gong 73 m away and hears the sound of the gong 1.7744 s later. The speed of sound in air is 330 m/s. What was the average speed of the base- ball on its way to the gong? (For simplicity, assume its trajectory to be a straight line.) ...
May 8, 2011

abnomal child psychology
individuals with mild mental retardation can usually acquire academic skills up to approximatley the_______ grade level. a.second b.tenth c.sixth d.twelfth I went with c. sixth please help.
May 5, 2011

Physics
A dragster maintains a speedometer reading of 100 km/h and passes through a curve with a constant radius. Which statement is true? 1. The dragster rounded the curve at a changing velocity of 100 km/h. 2. The dragster moved along a straight line at a constant velocity of 100 km...
April 28, 2011

PHysics
A dragster maintains a speedometer reading of 100 km/h and passes through a curve with a constant radius. Consider the following forces: I) air drag pushing back on the car; II) gravity pulling down on the car; III) the ground pushing up on the car; IV) friction pushing the ...
April 28, 2011

physics
I was only able to get the first and second question. Not the last two.
April 27, 2011

physics
A 37 ohm lamp and a 59 ohm lamp are connected in series and placed across a potential of 43 V. What is the equivalent resistance of the circuit? What is the current in the circuit? Answer in units of A. What is the voltage drop across the first lamp? Answer in units of V. What...
April 27, 2011

disease
Ct scans show evidence of multiple lesions in the white matter of the brain and spinal cord. What nerve disease could this be?
April 20, 2011

PHYSICS
A thin 2.82 m long copper rod in a uniform magnetic field has a mass of 44.2 g. When the rod carries a current of 0.238 A, it floats in the magnetic field. The acceleration of gravity is 9.81 m/s2 . What is the field strength of the magnetic field? Answer in units of T.
April 19, 2011

physics
An electron in an electron beam experiences a downward force of 1.9×10^−14 N while traveling in a magnetic field of 6.4 × 10^−2 T west. The charge on a proton is 1.60×10−19. a) What is the magnitude of the velocity? b) What is its direction?
April 19, 2011

math
Name the lengths of the sides of three rectangles that have perimeters of 14 units.
April 18, 2011

Biology
The ability to draw from z specific knowledge and experience to make a general explanation is
April 12, 2011

Physics
In the parallel circuit, if the current put out by the battery is 3 A and the current through R1 is 1 A, what is the current through R2?
April 9, 2011

chemistry
TNT (trinitrotoluene), an explosive, occurs naturally as an intermediate product of the decomposition of certain types of organic matter. Why does it not explode?
April 1, 2011

chemistry
TNT (trinitrotoluene), an explosive, occurs naturally as an intermediate product of the decomposition of certain types of organic matter. Why does it not explode?
April 1, 2011

math problem
the united kingdom,denmark,and norway have a total of 20 territories. norway has 1/5 as many territories as the united kingdom.denmark has 2 territories.how many territories does norway have?
March 31, 2011

Biology
What will happen to a turgid plant cell with an initial water potential of 0.5 MPa when dropped into a large beaker of water and solute that has a water potential of -1.5 MPa?
March 27, 2011

5th grade math
How can you change 320%to a decimal and a fraction
March 9, 2011

5th grade math
How to change 6/8 into a decimal, and into a percent can someone help me please
March 9, 2011

Writing
How can I make these sentences better and more "personal"? 1) As a teenager, my priority is to go to school and do well in all my classes. Outside of the classroom I have many interests and hobbies, such as dancing, and helping out in my community. 2) Kelvin is from ...
March 4, 2011

chemistry
LiOH + CO2 ----> Li2CO3 + H2O 1. how I can balance the equation?
March 4, 2011

chemistry
I need a problem: LiOH + CO2 ---> Li2CO3 + H2O 1. to balance the equation? 2. write the reasons estequiometricas with regard to Li2CO3? 3.how much do masses of Li2CO3 form if we add 37g of LiOHa to the Rxn? thanks
March 4, 2011

quemistry
I NOT UNDERSTAND
March 4, 2011

quemistry
Br2 + Cl2 ---> 2BrCl 1. FIND ALL THE REASONS ESTEQUIOMETRICAS WITH REGARD TO Cl2. 2. all the masses of Cl2 are needed to form 55g of BrCl. 3. all the grams of Br2 are needed to form 38g of BrCl. please I need help for this question for a homework. thanks
March 4, 2011

chemistry
Br2 + Cl2 ----> 2BrCl all estequiometicas con respecto a Cl2? cuantos moles de Cl2 se necesitan para formar 55g de BrCl? cuantos gramos de Br2 se necesitan para formar 38G de BrCl? Gracias,
March 4, 2011

phsyics
Light enters a plate of borosilicate crown glass at an angle of 40.2 degrees  with respect to the nor- mal to the air-glass surface. If the index of refraction of the glass is 1.52, find the angle made by the refracted beam with the normal. Answer in units of .
February 27, 2011

phyics
A mechanic pushes a(n) 3980 kg car from rest to a speed of v, doing 5107 J of work in the process. During this time, the car moves 29.3m. Neglect friction between car and road. Find the speed v. Answer in units of m/s.
February 27, 2011

Psychology
What are some problems with the following research study and how can I improve them? A researcher is interested in testing whether violent films make people more aggressive (the hypothesis). He asks his research assistants to wait outside the Friday night showing of Die ...
February 25, 2011

3rd grade math
why is school hard
February 24, 2011

physics
Estimate the force a person must exert on a string attached to a 0.120 kg ball to make the ball revolve in a circle when the length of the string is 0.600 m. The ball makes 1.20 revolutions per second. Do not ignore the weight of the ball. In particular, find the magnitude of ...
February 6, 2011

Medical Information Management
Accouding to a December 4 hospital census of 100, what are the total inpatient service days for December 5? Admissions 10 Discharges 2 A&D 1 A. 90 B. 109 C. 100 D. 110
January 20, 2011

English
How do I diagram this sentence? "They were made more cruel by the exposure of their position aloft on high seats." I don't know what to do with "aloft on high seats."
December 28, 2010

grammar
My teacher corrected a sentence, but wants me to explain why she is correct. I wrote: "Franklin acknowledges how difficult achieving perfection is, and how many have failed at it just like him." She corrected it to read: "Franklin acknowledges how difficult ...
December 6, 2010

Calc
A certain item sells for $30. If the cost of producing this item is given by C = .05s^3 + 100, find the marginal profit when x = 10.
December 3, 2010

trig
prove cosx+cotx/secx+tanx =cosxcotx
December 3, 2010

Math
cosx+cotX/secX+tanx=cosxcotx
December 2, 2010

Grammar
1. "catch" will change to "caught"? 2. developed --> develops believed --> believes was --> is will encounter --> encouenters was working --> are working was --> is Are these correct?
November 11, 2010

Grammar
In the paragraphs below, look for shifts in verb tense. In each paragraph, cross out these verb shifts and replace them so that there is verb tense consistency. Write in the correct form of the verb above what you have crossed out. 1. I watched the small children with their ...
November 11, 2010

Math
1. Points Q,R,S, and T lie on a circle with center P. If the radius of the circle is 1, what is the value of PQ+PR+PS+PT? 2. If 10^ab= 10,000, where a and b are positive integers, what is one possible value of a? 3. In the plane, the line 2x-3y=c passes through the point (5, -...
November 5, 2010

chemistry
Can someone help me with this question? what two conditions must be met by a thermochemical equation so that its standard enthalpy change can be given the symbol delta Hf?
October 12, 2010

chemistry
what two conditions must be met by a thermochemical equation so that its standard enthalpy change can be given the symbol delta Hf?
October 12, 2010

College Chemistry-Please help me
Are you looking for total net equation?
October 4, 2010

math
if the circumference of a circle is 16 meters,what is the approximate area of the circle
October 2, 2010

English
In the sentence, "He loves to watch television.", what part of speech is the word loves?
September 29, 2010

Statistics
A i think
September 26, 2010

Math
1. X^2= 4Y^2 and x=2y+1 Sooo i substitute (2y+1)^2= 4y^2 Find the square root of both sides 2y+1= 4y Solve for y 2y+1=4y 1=4y .25=y Substitue into X=2y=1 x=2(.25)+1 x=.5+1 x=1.5 But thats not an option.What did i do wrong?
September 26, 2010

Math
1.The square of x is equal to 4 times the square od y. If x is 1 more than twice y, what is the value of x? A) -4 B) -.5 C) -.25 D) .25 E) .5 2.In the xy-coordinate plane, lines L an Q are perpendicular. If line L contains the points (0,0) and (2,1), and line Q contains the ...
September 26, 2010

Math
1. In the 30 day month of April, for every three days it rained, there were two days it did not rain. The number of days in April on which it rained was how much greater than the number of days on which it did not rain? 2. Each terms of a certain sequence is greater than the ...
September 24, 2010

health care
Hospitals that are excluded from the Medicare acute care PPS (such as children's hospitals) are paid based on a. reasonable costs b. fee schedules c. global payments d. bundled payments
September 23, 2010

math
how do you write in word form 204,500,040.
September 19, 2010

physics!!!
a sled and rider with a combined weight of 60kg are at rest on top of a hill 12m high.what is the total energy at the top of the hill?
September 7, 2010

PHYSICAL SCIENCE
A 0.50-KG BLOCK INITIANALLY ON A REST ON A FRICTIONLESS HORIZONTAL SURFACE IS ACTED UPON BY A FORCE OF 8.0N FOR A DISTANCE OF 4.0M. HOW MUCH KINETIC ENERGY DOES THE BLOCK GAIN?
September 7, 2010

math
is the answer for 3y+8=-13 be y=-7?
August 31, 2010

math
if i know the domain of an equation is any real number except 3/7 how can i express it in interval notation? Thanks!
August 23, 2010

Grammar
dissatisfied. In this sentence should it be will or would? Why will I want to have everything except for love?
July 21, 2010

Grammar
I meant kids that get everything they want often want more. Like they begin to believe that being spoiled with items is not everything.
July 21, 2010

Grammar
Is this sentence grammatically correct? If not how can i fix it? Those who do have what they want crave for more; they want love and affection.
July 21, 2010

Grammar
Thank you so much! One last question =) What part of speech is there?
July 20, 2010

Grammar
Can you tell me a sentence that doesnt agree with the antecedent in number
July 20, 2010

Grammar
so I can put which of the two is a possesive pronoun as a question.
July 20, 2010

Grammar
I really dont know what to put for 6. Help?
July 20, 2010

Grammar
Is this good for 4? 4) You should take my (advise, advice) when it comes to handling stress.
July 20, 2010

Grammar
This is a backwards Hw. They give us the answers and we have to come up with questions for each. The questions should be about homophones, adjectives and adverbs, pronouns,appositives, and count/noncount nouns. They could be multiple choice, fill in the blanks or anything else...
July 20, 2010

Grammar
Are the appositives essential or non essential? 1. My son, the policeman, will be visiting us next week. 2. The captain ordered the ship's carpenters to assemble the shallop, a large rowboat. 3. Walter, the playboy and writer, is very attached to his mother, Mrs. Hammon. 4...
July 17, 2010

MATH HELP ASAP
PLEASE. 1. A frog jumps from a rock to the shore of a pond. Its path is given by the equation y=(-5/72)x^2+(5/3)x, where x is the horizontal distance in inches, and y is the height in inches. What is the frog's maximum height? How far had it traveled horizontally when it ...
July 13, 2010

Writing
Those this sound like a personal easy? Is it a good hook? After reading so many books, I have to admit that this was the first to make me cry. My dream goal is to become a psychologist. At first I was confused and undecided but by reading this book I made up my mind. As I read...
July 13, 2010

Grammar
1. The worker (who,whom) left the empty soda can on the computer. 2.Between you and (I,me), Greg will lose. 3.Do not give any money to (he,him) or (I,me). 4.(She,Her) and i were high school sweet hearts. 5.Often (we,us) boys will play hockey just for fun. Theres alot more. ...
July 13, 2010

Pre-calc
For 2 I did the function and got n=-1. then i substitute it in and got 11.5 is that the answer? if so to which of the 2 questions?
July 13, 2010

Pre-calc
1. Find the equation for a quadratic function whose vertex is (2,5) and whose graph contains the point (-8,15). 2.What are the x- and y- intercepts for y=2x^2+x-6 Plesee explai. I want to learn to learn how to do them.
July 12, 2010

math
There are five girls and five boys at a party. In how many ways can they be seated in a row of six?
June 30, 2010

math
Consider a state lottery that has a weekly television show. On this show, a contestant receives the opportunity to win $1 million. The contestant picks from four hidden windows. Behind each is one of the following: $150,000, $200,000, $1 million, or a "stopper". ...
June 17, 2010

Government
I'm rather confused about the whole Social Security may go bankrupt thing...since our nation is $14+ trillion dollars in debt, why would Social Security benefits stop if money runs out, since we borrow for everything else?
June 13, 2010

health service manager
What are some of the operations mangement practices that can help bring manufacturing back to the U.S? How can a focus on quality improve manufactoring?
June 6, 2010

7th grade
To find what X is, you would divide -4 into -76. This makes X=19
May 4, 2010

math
how do i find 1/3 of 9 2/5 of 25
April 13, 2010

math 4th grade
thank you
April 13, 2010

math 4th grade
no to sure how to do this
April 13, 2010

math 4th grade
it is 3/50
April 13, 2010

math 4th grade
lets say i'm not allow to use a calculator how else will i beable to solve this
April 13, 2010

math 4th grade
how do i put the following fractions in order from least to greatest: 3/7, 3/50, 3/2, 3/3, 3/4 please help
April 13, 2010

chemestry
how many moles of ammonia contain 1.51 x 10 24power NH3 molecules need help with formula please
April 13, 2010

French
If you're using the future tense, should the second verb be in the future as well? I'm trying to say I would like to study journalism. Is it J'aimerais etudier journalisme OR J'aimerais etudierai journalisme? Merci beaucoup!
April 8, 2010

math
tian's daughter will be 5/6 of a year old next week.how many months old will she be
March 17, 2010

math
thank you
March 16, 2010

math
which is bigger 16/50 or 9/30
March 16, 2010

english
i have to write a critical lens about this quote: "To provoke dreams of terror in the slumber of prosperity has become the moral duty of literature". by Ernest Fisher what does the quote mean?
March 6, 2010

Math
1.(Y+2)/(Y^2-9) * (4Y+12)/(3Y+6) ÷ 8/(2Y-6) = 2.(4X-Y)/(X+Y) * (X^2-Y^2)/(16X^2-Y^2) ÷ (2X-2Y)/(16X+4Y) = 3.(X^2-25)/(2X+12) * (X^2+8X+12)/(4X-20) ÷ (X^2+7X+10)/8X =
February 17, 2010

Algebra
1.(Y+2)/(Y^2-9) * (4Y+12)/(3Y+6) ÷ 8/(2Y-6) = 2.(4X-Y)/(X+Y) * (X^2-Y^2)/(16X^2-Y^2) ÷ (2X-2Y)/(16X+4Y) = 3.(X^2-25)/(2X+12) * (X^2+8X+12)/(4X-20) ÷ (X^2+7X+10)/8X =
February 17, 2010

writing
Ok so one setting is poor/ sharecropper and the other once used to be rich and on the most selective street now its full of machines and factories.
February 16, 2010

writing
Im having troubke coming up with a thesis.I need to compare setting in two different stories.
February 16, 2010

Writing
What is a good way to begin a comparison essay?
February 16, 2010

Chemistry
Based on the balanced equation 2Ba + O2 → 2BaO calculate the number of BaO formula units formed when 54 Ba atoms and 21 O2 molecules react?
February 15, 2010

ecuador
the currencey used in ecuador is the: A} pero B} sucre C} kina D} pula A little help here plz lol
February 13, 2010

math
yea i guess
February 13, 2010

helpmplz
thx:0
February 13, 2010

Math
A circle is tangent to the y-axis at y=3 and has one x-intercept at x=1, find the other x-intercept and the equation of the circle. ...And if it's not any trouble, could you please explain how to do get there alongside showing me what to do? Thanks (:
February 8, 2010

s.s
how is sweden's economy similar to the united kingdom's economy
February 8, 2010

writing
What is another characteristic that will help you get into college?
February 4, 2010

writing
how does perceverance and responsibility help you get into college?
February 4, 2010

Writing
How can confidence and determination help succeed in school?
February 4, 2010

Math
ramey has 27 and judy has 15
February 4, 2010

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