Saturday
May 23, 2015

Posts by Tommy


Total # Posts: 332

Algebra 2
Yes, sorry I meant evaluate. But the equation is not √2/(2+√2). The equation is √2/2 + √2
May 20, 2015

Algebra 2
I have tried solving this problem over and over but I'm still not sure with my answer. The question is sqrt2 / 2 + sqrt2. I think the answer is 1/sqrt2 + sqrt2 because you have to cancel out the common factors.
May 20, 2015

physics
a 16.0-g bullet is shot into a wooden block at rest with mass 4550g on a frictionless surface. the block moves 1.20m/s after the bullet strikes and becomes lodged in the block. find the speed of the bullet before striking the block.
April 7, 2015

physics
one car of mass 15.0kg is moving 5.00m/s to the right on a frictionless track and collides with a cart of mass 3.00kg. the final velocity of the carts that become stuck together after the collision is 1.50m/s to the right. find the velocity of the second cart before the ...
April 7, 2015

physics
an archer shoots an arrow into a piece of wood. the arrow is traveling at 120km/h when it strikes the wood. the arrow penetrates 3.8cm into the wood before stopping. what is its average acceleration (in m/s squared) into the wood?
April 6, 2015

Physics
Hi, I've been stuck on this for days! I'd love if I can get some help. Two unfortunate climbers, roped together, are sliding freely down an icy mountainside. The upper climber (mass 80kg ) is on a slope at 16∘ to the horizontal, but the lower climber (mass 65kg...
April 3, 2015

Physics
Hi guys, I'm a little stuck on this question I'm doing at the moment. If anyone has spare time, I'd be extremely grateful! A lens with 50-cm focal length produces a real image the same size as the object. a)How far from the lens is the object? b)How far from the ...
March 18, 2015

Physics
It's not 0%
March 18, 2015

Physics
Hello!I was wondering if anybody had the time to help me with this question. I am not sure what equation to use with three polarizing filters! I thought we use Malus' Law, but doesnt seem to work. Any help would be greatly appreciated!! The question: Unpolarized light ...
March 18, 2015

Math
not sure
March 16, 2015

Math
An art class is planning to paint a rectangular mural with an area of 60 square feet. It has to be at least 4 feet high but no more than 6 feet high. The length and width have to be whole numbers. List all possible lengths for the mural.
March 16, 2015

Physics
thanks for your time:)
March 14, 2015

Physics
Hi, can anybody provide some hints in how to approach these questions? I've been stuck on it for days!!! Thank you in advance!! Nodes of a Standing Wave: Consider a standing wave, where y represents the transverse displacement of a string that extends along the x direction...
March 14, 2015

Physics
Hello to all the fantastic tutors! I'm stuck on this question, I was wondering if there is a way to solve this. A car horn emits 378Hz sound. If the car moves at 23m/s with its horn blasting, what frequency will a person standing in front of the car hear? What I've ...
March 10, 2015

Physics
A transverse wave 1.1cm in amplitude is propagating on a string; the wave frequency is 44 Hz. The string is under 23-N tension and has mass per unit length of 16g/m . What is the wave speed? What I've done: using sqrt(Tension/mass_per_unit): sqrt(23/16)=1.19m/s But not ...
March 5, 2015

physics
A car traveling at 20 m/s stops in a distance of 50 m. Assume that the deceleration is constant. The coefficients of friction between a passenger and the seat are µs = 0.5 and µk = 0.03. Will a 70-kg passenger slide off the seat if not wearing a seat belt?
February 23, 2015

math
A band made a profit of 352.00 and sold 116 tickets and spent 25.00on advertising. How much was the cost of one ticket? T=the cost of one ticket. 116T-25.00=352.00 116T+25.00=+25.00 116T=377.00 116/116T=377.00/116 T=3.25
February 22, 2015

Science
What is the same in two isotopes of an element? What is different?
February 10, 2015

8th grade Science please help
Why is soda in an unopened bottle a homogenous mixture?
February 1, 2015

science answer fast please!
Could a molecule contain only one atom? Explain your answer.
February 1, 2015

science
Why is graphite considered an element?
February 1, 2015

science gases
The air that you breathe is a gas.List other gases that you have heard about in a science class.
January 27, 2015

science
When the temperature of the air in a hot air balloon increases, what happens to the volume of the gas?
January 27, 2015

Physics
By trial and error, a frog learns that it can leap a maximum horizontal distance of 1.26 m. If, in the course of an hour, the frog spends 27.5 % of the time resting and 72.5 % of the time performing identical jumps of that maximum length, in a straight line, what is the ...
January 27, 2015

Spanish II
Thank you so much!I am happy to know that my answers weren't as far off as I originally thought. I have a PC with Windows 8. On Microsoft word I use the symbols to make accent marks but I'm not sure how to on my computer.
January 27, 2015

Spanish II
Hi! I have completed this assignment but I felt like I was guessing throughout the whole thing. Since I could not underline I instead put 5 periods and the numbers instead; the answers are below the paragraph. Is this paragraph correct? Complete the following paragraphs with ...
January 27, 2015

math
if Dave is 21 years old 2014 how how old will he be in 2020
January 15, 2015

chemistry
the answer is 9.2 L and 34 lbs.
December 15, 2014

Math
Mindy picked 4 times as many daisies as tulips for a flower bouquet. She picked a total of 20 flowers. How many more daisies than tulips did she pick?
November 10, 2014

Math
What 3 positive integers satisfy a^3+b^3=c^3 ?
November 6, 2014

math please help
Suppose that ice cream consumption per person at parties is normally distributed with a mean of 0.39 gallons, and a standard deviation of 0.26 gallons. If you are throwing a party with 33 guests, how much ice cream do you need to buy to make sure that the probability of having...
October 24, 2014

math
HELP HELP PLEASE The University of Townville gives a full scholarship to any student who scores in the top 4% of students on the SMRT standardized exam. SMRT scores have a mean of 260 and a standard deviation of 22. What score does a student need to attain in order to receive ...
October 20, 2014

Math
Is 0.600 kg lighter than 1.00kg?
October 7, 2014

Physics
A 0.600-kg ball traveling 4.00 m/s to the right collides with a 1.00-kg ball traveling 5.00 m/s to the left. After the collision, the lighter ball is traveling 7.25 m/s to the left. What is the velocity of the heavier ball after the collision?
October 7, 2014

Physics-Intro
A 0.600-kg ball traveling 4.00 m/s to the right collides with a 1.00-kg ball traveling 5.00 m/s to the left. After the collision, the lighter ball is traveling 7.25 m/s to the left. What is the velocity of the heavier ball after the collision?
October 7, 2014

Values
Why do teenagers rebel?
October 7, 2014

Math
let s(t)= t^4-4t^3+8t for 0 ≤ t ≤ 4 find the total distance traveled by the object. find where the acceleration is positive.
October 5, 2014

math help
Which is equivalent to 14x-3y+2z=100 -17x+8y+10z=11 -3+13y+29z=81
May 19, 2014

Chemistry
The observed general trend in ionization energies shows two slight discontinuities in each period. Examine the electron configuration at these points and explain why such a discontinuity may occur.
April 9, 2014

Social Studies
I know his ideals,but I don't know how should I write about the reality? For example, october crisis, can you give me an idea how does october crisis affect his ideals?
March 11, 2014

Social Studies
I have to explain how does Pierre Elliot Trudeau's ideals meats the reality in 200 words? So can you give me some ideas about how should I write it?
March 11, 2014

Social Studies
To what extent do you think that Pierre Elliot Trudeau was the right man for his time? 200 words
March 11, 2014

Social Studies
How does Pierre Elliot Trudeau's idealism meets the reality? 150 words
March 11, 2014

English
Here are some quotes in Pride and Prejudice, can you help me to analyze it, remember to write it in your own words, I'm not good at analyzing, so... 1. It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife. 2. ...
February 27, 2014

English
Can you write this paragraph in your own words, so I can understand, but don't make the paragraph too short.
February 17, 2014

English
But his reference to Shakespeare is especially deliberate, being in the form of a solemn and last appeal to his friends among the scholarly dramatists to relinquish their connection with the presumptuous and ungrateful stage.
February 17, 2014

Drama
Can you read this and give me some idea about how I should block the scene because I have to perform it. Hi, I'm William Shakespeare. I had disappeared from the records for seven years. Many rumors flew around, including that I liked to poach. They say I had to leave ...
February 17, 2014

history
Answers are POORHOUSES and FACTORYS.
February 17, 2014

English
Can you check if there's grammar mistakes in this monologue, if there is, can you correct it for me. Hi, I'm William Shakespeare. I had disappeared from the records for seven years. Many rumors flew around, including that I liked to poach. They say I had to leave ...
February 17, 2014

Chemistry
Equation: Fe+CuCl2>FeCl2+Cu We put two iron nails into the copper chloride solution:1. mass of empty dry beaker:103.64 2. mass of two iron nails, before reaction:1.20 3. mass of two iron nails after reaction: 1.01 4. mass of beaker and copper (dry):104.4 Through ...
February 16, 2014

Chemistry
If the tongs used in the experiement were made of pure iron, what might happen if the tongs were allowed to remain in contact with the CuCl2 solution?
February 16, 2014

Chemistry
Equation: Fe+CuCl2>FeCl2+Cu The ratio of moles of copper produced to moles of iron reacted should be 1:1,but I get 60:17 in lab,can you state at least 3 errors for me?
February 16, 2014

English
Can you read this essay first, and then tell me how I should block the scene and perform it, I have no idea how I should do this. Hi, I'm William Shakespeare. I had disappeared from the records for seven years. Many rumors flew around, including that I liked to poach. They...
February 16, 2014

English-help me please
Can you change the hard English words to easy ones and make the long sentences a little bit short for me? I have to memorize it and perform it, so I need this monologue to be easier. Monologue:Shakespeare's relationship with Robert Greene For seven years, I was disappeared...
February 16, 2014

Social Studies
laissez-faire and different political ideologies:conservative, liberal and socialist.
February 15, 2014

Social Studies
If you are a member in Liberal party, what would you say about the great depression in Canada, I mean your idea?
February 15, 2014

English
How can I direct a key scene in Macbeth?
February 9, 2014

English
Question's about shakespeare? 1. What kind of music speaks to him the most? 2. For him, what role should the government have in a person's life? 3. For him, is the glass half empty or half full and why? I cannot find the answers for these questions online.
February 4, 2014

Social Studies
significance of liberation of the netherlands
February 2, 2014

Social Studies
In what ways did the Treaty of Versailles and the Great Depression help bring Hitler to power?
February 2, 2014

Social Studies
Explain the significance of the following for Canada and the World War 2: Dieppe, Ortona, D-Day, and liberation of the Netherlands.
February 2, 2014

Social Studies
Why is the Holocaust a great reason to support the current Canadian policy of multiculturalism?
February 2, 2014

Chemistry
All these
January 25, 2014

Chemistry
Air Pollution: How do I use equations to describe the question "How is it formed?' for the air pollution?
January 25, 2014

4th grade social studies
why did the king of spain give florida land away to foreigners? I can't find any thing on the internet?
January 22, 2014

English
Write this in your own words. what is Pollution? Pollution is the introduction of contaminants into the natural environment that cause adverse change.[1] Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of ...
January 22, 2014

Drama
About the movie" Hotel Rwanda¡±£º 1. 1. What moment did Paul's life change? 2. Could Paul have changed his mind? 3. At what moment was Paul past the point of no return? 4. What are the positive and negative sides of attempting to recreate ...
January 15, 2014

Chemistry
How do I write a blog for my chemistry project?
January 7, 2014

Social Studies
What kind of personalities did Canada have in the 1920s? Here we should treat Canada as a patient, so I think Personalities here means its character and nature, but not a famous person.
December 31, 2013

Psychology
How do I write a conclusion and recommendation for a psychological report? This report is about analyze Canada's relationship with Great Britain, USA and itself in the 1920s.
December 31, 2013

Social Studies
The teacher said we should treat Canada as a patient here and then analyze its relationship with itself.
December 31, 2013

Social Studies
During the 1920s, what were the various personalities of Canada, which personalities were dominant, which personality were starting to assert itself, and which personalities were still being ignored or mistreated? And "Personalities¡±here means Canada's ...
December 31, 2013

Social Studies
The teacher let us analyze Canada's relationship with itself in the 1920s. We are doing this in a psychological report and we should treat Canada here as a patient. I just don't understand what does he mean by attitude and where should I start?
December 31, 2013

Social Studies
It's talking about its attitude in the 1920s.
December 31, 2013

Social Studies
How would you describe Canada's attitude to money,work,entertainment and the past and the future?
December 31, 2013

english
what sound devices does Dickinson employ in the phrase, "too cool for Corn", "But when a Boy, and Barefoot"? alliteration, slant rhyme
December 26, 2013

Science
Idk
December 2, 2013

math
OHHHHH..... okay i understand now... Thanks!!
November 8, 2013

math
If a Realtor earns 6% commission for selling $70,000 home, what is the amount of the commission?
November 8, 2013

algebra
Please help find the root(values of x when the expression is equal to zero) 3x^2+21x=0
October 3, 2013

economics
Discuss the role of advertising in product differentiation and the intent of advertising in altering the firm’s demand curve.
September 20, 2013

Chemistry
The temperature of a 12.58g sample of calcium carbonate increases from 23.6degrees celcius to 38.2 degrees celcius. If the heat capacity is 0.82J/g-K, how many Joules of heat are absorbed
June 18, 2013

Chemistry
Calculate the Bi^3+ at the following points on the titration of 25cm3 of 0.02M Bi^3+ solution with 0.02M of EDTA at pH=2. After the addition of: a. 10cm3 b. 24cm3 c. 25cm3 d.26cm3 e. 30cm3. (Given: stability constant = 10^27.5, and alpha = 10^15.5) Please I need quick reply. ...
June 10, 2013

economics
A research firm calculated that students who attend University spend about $2,760 each in the local economy for a total of $50.45 million. In total, the impact of their spending on the local economy is £63 million. Calculate the size of the student spending multiplier. ...
May 17, 2013

economics
if Q = 60 − (1/2)P, and MC = 60, which means that MR = 60 how do you work out the price, which then allows you to work out the Q. does the graph still exhibit a slope at twice the rate of the demand curve? thanks for looking in
May 9, 2013

Chemistry
cr(s)--->Cr^3(aq)+3e- and Pb2+(aq)+2e---->Pb(s) write a balanced equation Please help thanks
May 5, 2013

statistics
An oil change shop advertised to change oil within 15 minutes. Based on the data collected on a typical day, what is the probability that oil change will take 15 minutes or less time? Based on the data, do you think the business claim is valid? Explain why or why not.
April 18, 2013

how many particles...?(Physics
A person takes a breath as deep as possible by exhaling as far as possible (leaving a volume of 1.170 L in their lungs), and then slowly inhaling to increase their lung volume by 4.580 L. His body temperature is also 37.64 ¡ãC. (i)How many particles of air do ...
April 9, 2013

Urgent Help needed in PHYSICS!
A spherical balloon is inflated to a diameter of 20.0 cm. Assume that the gas in the balloon is of atmospheric pressure (101.3 kPa) and is at a temperature of 20.0 ¡ãC. It is then taken by a diver 15.0 m under the sea. The temperature of the seawater at this depth...
April 9, 2013

Physics-
i¡® ve got the first question... so can anyone help me with the second??
April 9, 2013

math
31824
March 24, 2013

math
A professor grades students on three tests, four quizzes, and a final examination. Each test counts as two quizzes and the final examination counts as two tests. Sara has test scores of 60, 80, and 89. Sara's quiz scores are 85, 94, 83, and 84. Her final examination score ...
March 24, 2013

Algerbra
-3x+6
March 24, 2013

math
if the perimeter of a pentagon is 60 com, what must its dimensions be to maximize area? the pentagon has two sides equal to ecah other, (vertical side) the the base and top are all equal to each other
February 20, 2013

Help math
$4000 invested at an APR of 9% for 10 years What is the amount of money after 10 years
January 27, 2013

I don't understand how you did it help
A $4000 deposit at an APR of 5.6% with a quarterly compounding for 8 years . The amount after 8 years would be ???
January 27, 2013

Help on my math question
A $2,000 deposit at an APR of 5.4% with quarterly compounding for 8 years. The amount after 8 years ?? I need to find what the amount would be after 8 years please help This not Dave my name is Tommy I don't even know who Dave is and I'm sorry if you think I am I don&#...
January 27, 2013

MATH PLESE
This not Dave my name is Tommy I don't even know who Dave is and I'm sorry if you think I am I don't know how to solve these . My dad would get really mad he is the president of Harvard lol so you can see I'm in a tight squeeze.
January 27, 2013

MATH PLESE
A $2,000 deposit at an APR of 5.4% with quarterly compounding for 8 years. The amount after 8 years ?? I need to find what the amount would be after 8 years please help
January 27, 2013

History
8. What happened to Japanese Americans during World War II? A.) They were forced to leave the country. B.)They stayed in their homes. C.) They all joined the Japanese army. D.) They were sent to internment camps. I think it is C. Thank You.
January 24, 2013

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