Tuesday
September 2, 2014

Posts by lee


Total # Posts: 765

Physics
A ball was thrown with a velocity of 150 ft/ s at angle of 45 degrees above the horizontal. a)Find the range and the time of flight. b)What is the maximum height reached?
October 9, 2010

physics
The driver of a car traveling at 30 m/s needs to quickly reduce the car’s speed to 20m/s to round a curve in the highway. If the car’s deceleration has a magnitude of 6.0 m/s2, how far does it travel while reducing its speed?
October 9, 2010

physics
pitcher throws a ball for 1.98m. the balls mass is .145kg. what is the force on the ball by the pitcher?
October 6, 2010

chemistry
how many pounds of uranium are needed to make a nuclear bomb
September 29, 2010

earth
The earth doesn't "float", it orbits the sun following Newton's Law of Universal Gravitation. The presence of the sun, which is much more massive than earth and the other planets, drives the movement of the planets. The sun is so dense that a spoonful of it ...
September 29, 2010

algebra
rice are $2.00 per lbs. and sugar are $4.00 per lbs. I bougth a total of 10 pounds of both for $27.00 How many pounds of each did i get?
September 28, 2010

college algebra
Peaches are $2.00 per pound and mangos are #4.00 per pound. I bought a total of 10 pounds of fruit for $27.00 How many pounds of each did i get?
September 28, 2010

college algebra
The length of a carpet is 5 Ft. more than the width. The perimeter is 34 ft. What is the area?
September 28, 2010

math
A military jet flies directly over and at a right angles to the straight line course of a commercial jet. The military jet is flying 200 mph faster than four times the commercial jet. How fast is each going if they are 2050 miles apart (on a straight line) after one hour?
September 24, 2010

math
A jet takes the same time to travel 2500km with the wind as it does to travel 1900 km against the wind. If its speed relative to the air is 450km/hr, what is the speed of the wind?
September 24, 2010

calculus
A military jet flies directly over and at a right angles to the straight line course of a commercial jet. The military jet is flying 200 mph faster than four times the commercial jet. How fast is each going if they are 2050 miles apart (on a straight line) after one hour?
September 24, 2010

Business
what canadian service is imported and exported..
September 23, 2010

business
or it is just the different point of views on customs act ÉÉ
September 23, 2010

business
what is a recent canadian safety regulation act that got violated ie. acts such as food and drugs act meat inspection act seeds act hazardous products act customs act
September 23, 2010

business
why do you think federal government is concerned about foreign investment in financial services, transportation and culture in particular...(especially canadian government)
September 22, 2010

historyÉbusiness
how can investment regulation negatively impact a foreign business (in canada- investment canada act(ICA)
September 22, 2010

business
we have to present on germany and my part is 1) trade agreements 2) proximity to trade partners i dont know what it means!!
September 20, 2010

business
what is the mening of trade agreements of germany and their proximity to trade partners. please and thank you.
September 20, 2010

9th grade global history
what did he mean the gift of the nile
September 1, 2010

The elements and Principles of Design
thankyouu so muchh! <3
August 19, 2010

math
18. A cyclist bikes x distance at 10 miles per hour and returns over the same path at 8 miles per hour. What is the cyclist's average rate for the round trip in miles per hour?
August 9, 2010

biology
choose one animal species. Your goal is to describe the way in which an evolutionar change might occur for a particular characteristic(trait) of a populaiton of that species as a result of natural selection
August 8, 2010

Anatomy and Physiology
The nerve impulse reaches the spine through the axon tip, where it then travels to the tensor fascia, then to the iliacus, to the hipbone to the patella to the fibula longus, to the soleus to tibialis anterior.
July 31, 2010

PSYCHOLOGY
Sona is trying to put together a puzzle that is too difficult for her to complete alone. If the puzzle is within Sona’s zone of proximal development, then she
July 17, 2010

math
you are given two equations which are both true , and yiu are asked to solve for both x and y. you plane to solve this set of eqiutions by substituting part of one equation into the other so you end up with an equation that contains only x's or y's. the first thing you...
July 5, 2010

physics
If 30 N of force is exerted over an area of 20 m2, how much pressure is being applied?
June 28, 2010

Algebra
The signs are alternating and each term is a multiple of 5. The rule would be (-1)^n(5*n) where n are the integers 1 through 5. To show you that this is true I will evaluate the expression for each value of n 1 through 5 n=1 (-1)^1*5*1=-1(5)=-5 n=2 (-1)^2*5*2=1(10)=10 n=3 (-1...
May 26, 2010

Physics
An inductor is in the built in the shape of a solenoid of radius 0.20 cm, length 4.0 cm, with 1000 turns. This inductor is connected to a generator supplying an rms voltage of 1.2×〖10〗^(-4) V AC at an angular frequency of 9.0×〖10〗^3 ...
April 25, 2010

Marketing
The manager of the aluminum recycling division of Environmental Services wants a survey which will tell him how many households in the city of Seattle, Washington, will voluntarily wash out, store, and then transport all of their aluminum cans to a central recycling center ...
April 20, 2010

Last One [Chemistry]
When the Kelvin temperature of an enclosed gas doubles, the particles of the gas ___?
April 13, 2010

Chemistry
Oh the Ideal Law? Thank you so much!!
April 13, 2010

Chemistry
what is the pressure exerted by 32g of 0xygen(O2) in a 22.0 L container at 30.0`C? What Law do I use?
April 13, 2010

Chemistry
Which of the following atoms would have the greatest velocity if each atom had the same kinetic energy? Ammonia? Bromine? Hydrogen? Chlorine?
April 13, 2010

Chemistry
all I know is that Nitrogen and Helium are the one; but these I do not know
April 13, 2010

Chemistry
So it's between Argon and Neon right? and thank you for helping me
April 13, 2010

Chemistry
Which of the following gases is the best choice for inflating a balloon that must remain inflated for a long period of time? a) argon b) hydrogen c) neon d) oxygen
April 13, 2010

1st grade math
find 4 ways to show 25 cents..
April 8, 2010

physics
m1= 1kg v1= 1.50 m/s ===== m2= 0.010kg v2= 100m/s ===== m1*v1= 1kg*1.50kg= 1.50kg-m/s m2*v2= 0.010kg*100m/s= 1.0kg-m/s ===== mTotal= 1.010kg Since the bullet is shot in a vertical movement, and the duck was flying horizontally, then we can use Pythagorean to solve for the ...
March 29, 2010

Physics
Two very long, straight, parallel wires separated by distance d carry currents of magnitude I in opposite directions. Find the magnetic field at a point equidistant from the lines, with a distance 2d from each line.
March 28, 2010

chemistry
Urgent. The melting point of pure acetylsalicylic acid is 135 degrees celsius. Comment on the purity of your product based on its melting point range. My melting point range was 105-115. I do not even know where to start for this question. Could you please help?
March 23, 2010

chemistry
Thank you that was very helpful!!!
March 17, 2010

chemistry
URGENT: If 2.24g of salicylic acid is reacted with 61mL methanol, what is the maximum mass of product that could be formed? The density of methanol is 0.791g/mL. Do I just multiply 61ml by 0.791g/ml to get 48.251 g methanol then multiply this by the 2.24g of salicylic acid?
March 17, 2010

math
A rectangular park measuring 35 yards by 24 yards is surrounded by a trail of uniform width. If the area of the park and the trail combined is 2420 square yards, what is the width of the path?
March 2, 2010

kindergarten
I need to know what a counter is in order to have my child draw a piece of yarn 3 counters long from the needle. What exactly is a counter?
February 8, 2010

Math
Amy paid 72.34 for a pair of running shoes during a 20%off sale. what was the regular price?
January 31, 2010

chemistry 21
13. Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2S(s) + O2(g) „_ 2Cu(s) + SO2(g) If the reaction of 0.540 kg of copper(I) sulfide with excess oxygen produces 0.140 kg of copper metal, what is the percent yield? A) 32.5% B...
January 31, 2010

Math
2 sqrt 7 is your surd a surd is a numerical expresion containing one or more irrational roots of numbers its the conventional way of saying sqrt 7 x 2
January 26, 2010

economics
testing procedures required by the US Food and Drug Administration raise the cost and price of drugs. Should we eliminate such requirements in order to ease inflationary pressures
December 13, 2009

economics
The Fed should simply increase the money supply at the same rate that the full employment economy grows, and the government should desist from any stabilizing urges." What school of thought would make this suggestion, and how do economists of that school justify that ...
December 13, 2009

Trigonometry
If someone could tell me if this is correct, it would really help me out. Problem: A statue 20 feet high stands on top of a base. From a point in front of the statue, the angle of elevation to the top of the statue is 48 degrees, and the angle of elevation to the bottom of the...
December 10, 2009

Spanish
Is this correct? "Accion de gracias feliz! Nosotros deseo ustedes tenidas unasvacaciones alegres! Feliz dia del pavo!" I am trying to say, "Happy Thanksgiving! We wish you all had a joyful holiday! Happy Turkey day!"
November 28, 2009

Calc
Thank you!
November 8, 2009

Calc
A sample of a radioactive substance decayed to 93.5% of its original amount after a year. a) What is the half-life of the substance? ? years (b) How long would it take the sample to decay to 10% of its original amount? ? years
November 8, 2009

Economics
How does inflation influence the terms of trade?
October 29, 2009

Economics
How does inflation influence the terms of trade?
October 29, 2009

Economics
How does inflation influence the terms of trade?
October 29, 2009

albebra
whats the question guy?
October 29, 2009

Economics
How does inflation influence the terms of trade?
October 29, 2009

college
Whenever Congress has a perceived need for ongoing control of an economic activity, it has tended to creat a: a. regulatory agency b. cabinet department c. presidential commission d. government corporation
October 29, 2009

algebra 2
you are making gift baskets.each basket will contain three different kinds of candles: tapers,pillars, and jar candles. Tapers cost $1 each, pillars cost $4 each, and jar candles cost $6 each. You put 8 candles costing a total of $24 in each basket, and you include as many ...
October 14, 2009

circles
the radius of a curvature is 10ft and the height of the segment is 2ft. What is the length of the chord
September 26, 2009

physics
A wave of amplitude .30 m interferes with a second wave of amplitude .20 m. What are the largest and smallest displeacements that can occur? What type of interference is demonstrated by each displacement?
September 8, 2009

ALGEBRA
SUZY IS 10 YEARS OLDER THAN BILLY, AND NEXT YEAR SHE WILL BE TWICE AS OLD AS BILLY. HOW OLD IS SUZY NOW? HOW OLD IS BILLY?
September 8, 2009

college
solve by the elimination method 4x+8y=8 -4x+y=10 What is the solution of the system?
September 1, 2009

math
(5, 10, 15, 20, 25, 30)
August 27, 2009

world Literature
What are the primary aspects of the Renaissance WOrldview? How is it similar or differ from ancient and western worldviews? How is it present today?
August 23, 2009

World History
yes cant find the answer!! it's due tomorrow.. plz help me
July 27, 2009

World History
Compare matrilineal and patrilineal cultures.
July 27, 2009

World History
I know the differences but I can’t figure out the comparisons. Matrilineal- term for a family organization in which kinship ties are traced through the mother. Patrilineal- term for a family organization in which kinship ties are traced through the father.
July 26, 2009

World History
Compare matrilineal and patrilineal cultures.
July 26, 2009

World History
Compare matrillineal and patrilineal cultures.
July 26, 2009

World History
Provided social welfare Provided strict stationary guidelines and rules to contrast a unstable government system - morals/ how to live life unified communities through pride in architecture and common worship
July 26, 2009

World History
Describe three ways the Church shaped Medieval life.
July 26, 2009

NWSS math
v/v+11 + 1/v+19=1
July 6, 2009

Math
How many vertices does a cube have? How do you know for sure?
June 13, 2009

english
in the following words where is the stress?stress on the syllable - comfortable, fashionable, occasion and commercial?
April 26, 2009

English
Is there a silent letter in the word maintenance? one that is un voiced?
April 26, 2009

English
Where is the schwa sound in both the words comfortable and fashionable if it present?
April 26, 2009

English
In both the words commercial and occassion are there any silent letters that are not voiced when these words are pronounced?
April 26, 2009

English
Is there a silent letter in the words comfortable and fashionable?a silent letter that is not voiced when the these words are pronounced.
April 26, 2009

english
I agree, knowledge is more vaulable than ignorance or not knowing
April 26, 2009

business
A coffee shop sounds good with good selection of drinks, snacks ect.
April 25, 2009

Grammar
Use whom, which is correct.
April 25, 2009

algebra
15M+9N-1PN
April 13, 2009

science
genotype ???
March 25, 2009

Math
The LCM of two numbers is 24. The GCF is 2. The numbers differ by 2. What are the numbers?
March 25, 2009

math6
o i got the ansewer already
March 14, 2009

math6
grrr tht dosent help i need the ansewer pleaseplease
March 14, 2009

math6
put least to greatest 3.7,3.2,35/8
March 14, 2009

math6
thats sooooooo wrong
March 10, 2009

math6
the lcm is 30 the gcf is 2 whats the pair of numbers for each set of conditions
March 10, 2009

Chemistry
Sorry I mistyped. I meant to type aq. I don't feel so bad that it is confusing to others. The actual assignment states balance the equation for 1/2 of A, where A is FECl, is combined with 1/3 of K, where K is NaOH. I have no other information .
March 4, 2009

Chemistry
I have to balance a double replacement chemical reaction. I do not know if I am doing it right. The question is 1/2 of A combines with 1/3 of K. A = FeCl (ag) and K = NaOH Is the answer FeCl+NaOH = FeOH + ClNa?
March 4, 2009

statistics
The mean GPA (grade point averagE. of all male students at a college is 2.77 and the mean GPA of all female students at the same college is 2.89. Suppose we take one sample of 40 male students and another sample of 50 female students from this college. What is the mean of the ...
January 30, 2009

Is this a metaphor?
"Listen, your my prize pupil." Is he comparing the other person as a prize pupil without using like or as?
January 26, 2009

math
It is hard to type fractions here, but I will try. My book says I need to "tell why the ratio $0.37 $1.85 ______ and ______ 1 stamp 5 stamps is not a proportion." It looks like a correct proportion to me! Is the problem that there is a 1 as a denominator? Does the ...
January 5, 2009

8th grade tech
Thank you so much guys, Ms. Sue, I'm g oing to take it in he stuff I've copied from that site, I'll tell you tomorrow if its right. Lee
December 8, 2008

8th grade tech
I don't know but, It's Computer Tech, So I'm guessing Computers?
December 8, 2008

8th grade tech
I need to find out what a Information Colour chart is. I've checked on internet but I can't find. Could anyone help me I need 3-5 facts about it to. Thank you.
December 8, 2008

English
My contention is that "affected" is a participle (a verb functioning as an adjective),describing the subject "students", and "be" is a linking verb.
November 29, 2008

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