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October 25, 2014

Posts by Emily


Total # Posts: 2,343

Yr 10 PE
Btw 'Teacher' do you happen to know anyone named Mackenzie Farmer in year 10? Because she told me about this website and that it was alright to use. And what have I done wrong, I wrote out exacly what was on the sheet, just in a simpiler form?
February 27, 2011

Yr 10 PE
999babe999- its a different Emily than the one that asked the question.
February 27, 2011

Yr 10 PE
Jeeze it sounds just like the assignment I got the other day. Pick either one of the road saftey ads and do the following: 1. Write what the purpose of the road saftey ad. 2. Write down how it is effective. 3. Say why funding should or should not be cut by the Government based...
February 27, 2011

Yr 10 PE
I don't seem to understand this question can you please paraphrase this. Task Outline: Outline the purpose of ONE health promotion initiative related to road safety, assess the effectiveness of this initiative and justify funding for road safety initiatives. Task ...
February 27, 2011

Physics
Is the trend for ionic radius just that for metals, they are smaller than the nuetral atom and for non-metals, and for non-metals, they are bigger than the neutral atom? Or is there another specific trend?
February 26, 2011

North & Central America
What ensures Canada's cold climate?
February 26, 2011

Physics
This is wrong!
February 25, 2011

Science
Thanks Ms. Sue
February 24, 2011

Science
Is it A .. other forcs keep building up the land?
February 24, 2011

Science
For million of years, wind and rain have worn down the earth. The land is not totally level now because ____. a. other forces keep building up the land b. wind and rain cannot erode solid rock c. for most of those years, wind and rain were scarce d. wind and rain pile dirt ...
February 24, 2011

Physics
A block is released from rest at the top of an incline which makes a 30 degree angle with the horizontal. The incline is 12 m long and it takes the block 25 seconds to reach the bottom. What is the coefficient of kinetic friction, between the block and the incline?
February 24, 2011

Chemistry
The mass of the solution will change as a result of the newly added substance. Because of colligative properties, anytime something is added to solution, the freezing point is lowered and the boiling point is raised. Water does not conduct electricity on its own, and since ...
February 23, 2011

Math
Regina worked in the garden, she spent 1/4 hour planting beans, 3 3/4 minutes staking tomato plants, and 1/2 hour training the cucumber vines. How much time did she spend gardening? Explain your answer.
February 22, 2011

calculus
find the derivative of 3/ln(3z)
February 20, 2011

Yr 10 English URGENT
My last name starts with a B......
February 20, 2011

Yr 10 English URGENT
HEY SHIVI! I made it up on the day. I made something up about a boat about 2 sink and I was about to die. Nice story though. What did u get for it?
February 20, 2011

Chemistry
What's the relationship between ionization energy and electron affinity? I ionization eneergy deals with losing electrons and electron affinity deals with gaining electrons, but I don't know how to explain the relationship.
February 18, 2011

Chemistry
Explain which atom of the following pair have the smaller ionization energy: As, I
February 18, 2011

Physics
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.93 V and a current of 2.7 A are induced in the coil. The wire is the re-formed into a single-turn square coil, which is used in the same ...
February 18, 2011

Physics
Yes, that's the question, but I'm confused as to how I should find the length.
February 17, 2011

Physics
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.93 V and a current of 2.7 A are induced in the coil. The wire is the re-formed into a single-turn square coil, which is used in the same ...
February 17, 2011

bookkeeping
just because someone ask for advice/a little help on an answer doesnt mean she/he is cheating
February 15, 2011

Calculus
find derivative of w(x)= (23e^x)/4^x
February 14, 2011

Calculus
f(t)=-4.9t^2+25t+3 meters what is the average velocity during the first two seconds? find the instantaneous velocity at t=2
February 13, 2011

Physics
A duck on a pond paddles 20 m [36˚ N of E] and then paddles another 60 m[25˚E of S]. Determine the duck’s total displacement.
February 13, 2011

Calculus
find dz/dx when z= (ln 5)e^x
February 10, 2011

Social Studies
It is but I read through the section twice and I couldn't find anything that helped.
February 9, 2011

Social Studies
How was the culture of the Ottoman rulers similar and different from the cultures of the people they ruled in Southwest Asia? Plase help me with this question its confusing me so much!
February 9, 2011

Physics - Please Help
Two cars are moving. The first car has twice the mass of the second car but only half as much kinetic energy. When both cars increase their speed by 3.41 m/s, they then have the same kinetic energy. a) What is the original speed of the first car? b)What is the original speed ...
February 8, 2011

pre-algebra
If I have Y=-3X+21 do i simplify or keep it just the same???
February 8, 2011

pre-algebra
If I have Y=-3X+21 do i simplify or keep it just the same???
February 8, 2011

Physics - Please Help
Two cars are moving. The first car has twice the mass of the second car but only half as much kinetic energy. When both cars increase their speed by 3.41 m/s, they then have the same kinetic energy. a) What is the original speed of the first car? b)What is the original speed ...
February 8, 2011

Physics
Two cars are moving. The first car has twice the mass of the second car but only half as much kinetic energy. When both cars increase their speed by 3.41 m/s, they then have the same kinetic energy. a) What is the original speed of the first car? b)What is the original speed ...
February 8, 2011

Chemistry
Calculate the amount of Citric acid monohydrate needed to make 100 mL of 0.1 M solution
February 7, 2011

physics
a worker drives a .551 kg spike into a rail tie with a 2.55 kg sledgehammer. The hammer hits the spke with a speed of 62.1 m/s. if one fourth of the hammers kinetic energy is converted to the internal energy of the hammer and soike, how much does the total internal energy ...
February 7, 2011

chemistry
How many photons of light are emitted when the electrons in 10 hydrogen atoms drop from energy level 5 to 3?
February 5, 2011

SraJMcGin
Thanks so much SraJMcGin for all those notes, even my teacher didnt provide us with such good notes like you did:) Thanks so much:)<3<3<3<3<3<3<3 Where do I check the related questions?
February 3, 2011

SraJMcGin
SraJMcGin. I have a few questions; a few things that I don't really get.. I have trouble remembering the endings of the er, ir, and re verbs. Regular verbs mean that they don't have to be changed(they stay in the same form), its just their endings that change, the ...
February 3, 2011

physics
One strategy in a snowball fight is to throw a snowball at a high angle over level ground. While your opponent is watching this first snowball, you throw a second snowball at a low angle and time it to arrive at the same time as the first. The acceleration of gravity is 9.8 m/...
February 3, 2011

French
use 2 verbs together with the second in the infinite form. I dont get this...what to do?
February 2, 2011

French
Ask a question using Qui, Qui a la, Quelle, Quand, etc. 1.Quand tu vas a la cafe? 2.Qui vas aller a lècole? 3.Quelle heure est-il? Have I got all of them?
February 2, 2011

French
Use different adjectives correctly and demonstrate understanding of gender and number changes -2 BANGS examples/2 Non-Bangs examples. B-Beauty(Belle, Beau) A-Age(Jeune, Vieux) N-Number(Nouveau, Nouvelle) G-Gender(Bon, Mauvais) S-Size(Petit, Grande) Im not really sure of what ...
February 2, 2011

French
Wow thanks Grace so much:)
February 2, 2011

French
Difference between indefinite and definite articles? Indefinite = Un, Une, Des Defenite = La, Le, Les The indefinite articles means A or A(n) and Des means some. Le, and La mean the, and Les is the plural form of these two. Give example of each: 1.Je vais manger des fromage.(...
February 2, 2011

Statistics
Juan makes a measurement in a chemistry laboratory and records the result in his lab report. The standard deviation of students' lab measurements is 10 milligrams. Juan repeats the measurement 3 times and records the mean (x-bar) of his 3 measurements. a) What is the ...
February 1, 2011

math
ragan takes an hour to plant 2 vines between each of the 6 posts in the first row of his vineyard how long will it take to plant two vines between each of the 9 posts in the longer second row hint 10 vines take one hour
February 1, 2011

math
i have 3 kg 4 kg and 5 kg on one side and 5 kg and 7 kg on the other side which two tiles do i swap to have the same amount on both sides
February 1, 2011

math
i have 3 kg 4 kg and 5 kg on one side and 5 kg and 7 kg on the other side which two tiles do i swap to have the same amount on both sides
February 1, 2011

math
how do you add 3 1/2 + 1 3/4
January 31, 2011

Physics
The air speed indicator of a plane that took off from Detroit reads 373 km/h and the compass indicates that it is heading due east to Boston. A steady wind is blowing due north at 42.3 km/h. Calculate the speed of the plane with reference to the ground. If the pilot wishes to ...
January 30, 2011

Physics
For a science fair competition, a group of High School students built a kicker-machine that can launch a golf ball from the origin with a velocity of 12.3 m/s and initial angle of 29.9° with respect to the horizontal. *Where will the golf ball fall back to the ground? *How...
January 30, 2011

Physics
A golf ball is hit with an initial angle of 54.7o with respect to the horizontal and an initial velocity of 85.1 mph. It lands a distance of 104.3 m away from where it was hit. By how much did the effects of wind resistance, spin, and so forth reduce the range of the golf ball...
January 30, 2011

math
hey, this is my first time using this site so I'm not sure what I'm doing exactly! So i need a REALLY simple way how to convert fractions into a percent! i be confused!! :(
January 27, 2011

Photography
Suppose you have three negatives: an over-exposed one, an under exposed one, and a correctly exposed one. Which would require the longest exposure during contact printing?
January 27, 2011

Math
Lois invests $650 every 6 months at 4.6%/a compounded semi-annually for 25 years. How much interest will she earn after the 25th year?
January 26, 2011

Math
I did it, im just making sure my answer is right
January 26, 2011

Math
On July 1, 1996, Anna invested $2000 in an account that earned 6%/a compounded monthly. On July 1, 2001, she moved the total amount to a new account that paid 8%/a compounded quarterly. Determine the balance in her new account on January 1, 2008.
January 26, 2011

math
On July 1, 1996, Anna invested $2000 in an account that earned 6%/a compounded monthly. On July 1, 2001, she moved the total amount to a new account that paid 8%/a compounded quarterly. Determine the balance in her new account on January 1, 2008.
January 26, 2011

Math
Cliff has some money he wants to invest for his retirement. He is offered two options: 10%/a simple interest or 5%/a compounded annually. Under what conditions should he choose the first option
January 26, 2011

Math
Q: Determine the sum of the first seven terms of a geometric series in which the first term is 11 and the seventh term is 704. ^Are there two answers, since the common ratio could be positive or negative?
January 25, 2011

math
in 5 years art will be twice as old as ben. 5 years ago art was 3 times as old as ben. How old are they?
January 24, 2011

Math
The revenue for a business is modeled by the function R(x)=-2.8(x-10)^2+15, where x is the number of items sold, in thousands, and R(x) is the revenue in thousands of dollars. Express the number sold in terms of the revenue.
January 22, 2011

Math
Determine the domain and range of f(x)=-sqrt(x+3) and the equation of the inverse.
January 22, 2011

Math
Simplfy 7sqrt(3/6)
January 22, 2011

Pre Calc
A swimming pool can be filled by a vent in 10 hours. When the pool is filled, it can be emptied bya drain pipe in 20 hours. The pool manager mistakenly leaves the drain pipe open while trying tofill the pool. How long will it take to fill the pool?
January 21, 2011

physics
Find the coefficient of kinetic friction between a 4.3-kg block and the horizontal surface on which it rests if an 80 Newton/meter spring must be stretched by 2.7 cm to pull the block with constant speed. Assume the spring pulls in a direction 13 degree above the horizontal.
January 19, 2011

Math
40 + 24 = 64
January 19, 2011

physics
thank you! may God bless you Bob :)
January 19, 2011

physics
My bad. Find the coefficient of kinetic friction between a 4.3-kg block and the horizontal surface on which it rests if an 80 N/m spring must be stretched by 2.7 cm to pull the block with constant speed. Assume the spring pulls in a direction 13 degree above the horizontal.
January 19, 2011

physics
Find the coefficient of kinetic friction between a 4.3- block and the horizontal surface on which it rests if an 80 spring must be stretched by 2.7 to pull the block with constant speed. Assume the spring pulls in a direction 13 above the horizontal.
January 19, 2011

Algebra 2
Complete the square to solve -x^2-7x+6=-2x^2
January 17, 2011

MATH
Solve for y in the following system of equations: x - y = -1 3x + 5y = 21
January 13, 2011

Math
if log(x+1) 27=3 find the value of x *(x+1) is the base i know that the answer is 2 but i have no clue how to get that
January 13, 2011

Statistics
"Buy a Match 6 lottery ticket every day until you win the lottery. (In a Match 6 lottery, a player chooses 6 different numbers from the set {1, 2, 3, ..., 44}. A lottery representative draws 6 different numbers from this set. To win, the player must match all 6 numbers, ...
January 13, 2011

science
when do plates have the most potential energy
January 11, 2011

Math
The height of the tide in a given location on a given day is modelled using the sinusoidal function h(t)=5 sin (30(t-5))+7. a) What time is high tide? What time is low tide?
January 10, 2011

Life Span Development
Someone tells you that she has analyzed your genetic background and environmental experiences and concluded that environment definitely has had little influence on your intelligence. What would you say about this analysis?
January 9, 2011

math
A grocer get food from three suppliers. They deliver every 5 days, 6 days, and 7 days, respectively. All three came today. When will they all deliver on the same day again?
January 6, 2011

social studies
why does the 21st century include 2011
January 5, 2011

marketing
Imagine that you are a mentor to a new employee at a marketing firm. The new employee is having trouble understanding what the term market communication really means.
January 3, 2011

english
Verbs that form their past and past participle by adding ed , d , or t to the present are called a) regular. b) irregular
January 3, 2011

English
Read the following sentence. Decide if the verb is used as transitive or intransitive. The sun rose over the mountain. 1)transitive 2)intransitive
January 3, 2011

Statistics
Ohhh I get it now! Thanks so much!
January 2, 2011

Statistics
A coin is tossed five times. Find the probability of getting four tails. I realize that getting four tails is the exact same thing as getting only one heads, but how would you figure out this problem using probability rules? Thanks for your time, I appreciate it :]
January 2, 2011

math
hi i made a typo in my last question can u please show me step by step how to simplify [(x^3/y^3) -1]/[(x^2/y^2)+(x/y)+1]
January 2, 2011

math
[(x^3/y^3) -1]/[(x^2/y^2)+(x/y)+1] is right yes please help
January 1, 2011

math
how do i simplify [(x^3/y^3) -1]/[(x^2+y^2)+(x/y)+1]
January 1, 2011

Math
The point (-8,3) lies on the terminal arm of angle theta in standard position. Determine the primary trigonometric ratios for angle theta and calculate the value of theta to the nearest degree. Only the sine ratio was positive, and when I used that to calculate the angle, it ...
December 27, 2010

Math
State the restrictions on the variables for these trigonometric identities. a)(1 + 2 sin x cos x)/ (sin x + cos x) = sin x + cos x b) sin x /(1+ cos x) = csc x - cot x
December 22, 2010

math
im helping my brother with his homework but i completely forgot how to do this? Solve the system by substitution: y=3x-4 x+5y=-4
December 21, 2010

General Chemistry
According to the following reaction, how many moles of Fe(OH)2 CAN FORM FROM 175.0 mL of 0.227 M LiOH soultion? Assume that there is an excess of FeCl2 FeCl2(aq)+ 2 LiOH(aq)-(Oh)2(s)+2LiCl(aq) I have no clue how to approach this problem? Could anyone help me? I do not know ...
December 17, 2010

Math
Cliff has some money he wants to invest for his retirement. He is offered two options: 1. 10%/a simple interest 2. 5%/a compounded annually Under what conditions should he choose the first option?
December 15, 2010

Math
Under what conditions should he choose the first option? Explain.
December 15, 2010

Math
Cliff has some money he wants to invest for his retirement. He is offered two options: 1. 10%/a simple interest 2. 5%/a compounded annually
December 15, 2010

Physics
How does the index of refraction relate to the speed of light in a substance?
December 14, 2010

Physics
When an object is immersed in a fluid describe the buoyant force?
December 14, 2010

Physics
A 1.5kg frog on a string is being dragged along a table with a force of 12N. If string makes a 60 degree angle with the table, and the co efficent for friction is 0.15, what is the accleration of the frog.
December 14, 2010

chemistry
The boiling point of an aqueous solution is elevated by 0.15 degrees celcius. the change in freezing point of the solution, delta T, is? a.) -6.32 b.) 0.15 c.) -0.15 d.) 0.54 e.) -0.54 I know the answer is d, i just don't understand how to get it! thanks!
December 14, 2010

calculus
D. Plugging 2 into original fxn gives you y-coordinate. (2,6) Taking the derivative of y=(x^3)-x gives you f'(x)=3x^2-1. Plug in x=2 to find slope. use point slope form to get equation! :)
December 14, 2010

Math
sin^2 theta + 2 cos theta -1/ (sin^2 theta +3 cos theta-3= cos^2 theta+cos theta/ (-sin^2 theta) Prove the identity.
December 12, 2010

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