Friday
September 19, 2014

Posts by alyssa


Total # Posts: 538

physics
A girl and the bike she is riding have a combined mass of 73.7 kg and are initially at rest but then she tosses the jug of water in her hand the forward direction. If the jug has a speed of 3.0m/s relative to the ground and the girl and bike move in the opposite direction at -...
September 15, 2014

chemistry help!
The Colorado River is diverted to flood fields. If the river is flowing at 17,600 ft3/s , how long will it take to flood a 5500 acre field to a depth of 2.00 meters? Note that 1 acre=43560ft2.
August 25, 2014

Science (Physics)
Thank you!
August 3, 2014

Science (Physics)
I will next time but I really need help with these questions, any help would be appreciated.
August 3, 2014

Physics
Two resistors 10ohms and 5ohms are connected in parallel across a 15V battery. What is the potential difference across the 10ohms resistor. I do not need the answer just the formula and how to figure out the problem. Thanks.
August 3, 2014

Science
There are two set pieces in a theater sitting on platforms with wheels. One is a tree with a mass of 50 kg. It is moving at 3 m/s. The other is a fence with a mass of 30 kg. If the two set pieces have equal momentum, how fast is the fence moving? A. 3 m/s B. 5 m/s C. 30 m/s D...
July 14, 2014

Chemistry
Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more compli- cated, but this is a reasonable first approxima- tion.) The combustion of carbon is described by the equation C(s) + O2(g) −→ CO2(g) ∆H◦ = −394 kJ What is ...
May 22, 2014

Chemistry
Calculate the volume of NaOH 0.5 mol/L necessary to neutralize 300 mL of HCl 0.2 M. na= how do I calculate this? Ma= 0.2 M Va= 0.300 L nb= 0.5 mol Mb= 0.5 M Vb= ?
May 13, 2014

language art pllz help
A B C B B
April 30, 2014

Chemistry
HELP!! I'm doing an experiment to do with phosphorus and plant food and MgNH4P04 6H20 my air dry weight of MgNH4P04 6H20 was 1.31 g grams of P in plant food was .165 g % P in plant food is 13.87% % P205 equivalent to % P above is 63.02% % P 205 in 10-52-10 is 52% i then ...
April 25, 2014

History
Mark the statement if it describes Roman society during the time of Cincinnatus. A. Rome’s government was based on law in which many people had a voice. B. Rome was being surrounded and threatened by outside forces. C. People in Rome admired those who used their abilities...
April 23, 2014

Chemistry
Vitamin K is involved in normal blood clotting. When 1.05 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 3.53 °C. The freezing point and Kf constant for camphor can be found here. Calculate the molar mass of ...
March 26, 2014

Chemistry
Given that the vapor pressure of water is 17.54 Torr at 20 °C, calculate the vapor-pressure lowering of aqueous solutions that are 1.90 m in (a) sucrose, C12H22O11, and (b) aluminum chloride. Assume 100% dissociation for electrolytes. I got .5799 Torr for sucrose, ...
March 26, 2014

Math
I forgot the - in the above answer that I gave. It should really be y+7=-2(x-2) y=-2x-3
March 26, 2014

Math
The key to perpendicular lines is that the slopes will multiply together to get negative one. Since your original slope is 0.5, your new slope will be -2. Passing through your stated points, the point-slope equation of the line will be: y-(y1)=m(x-(x1)) plug in your slope & ...
March 26, 2014

Science
Different climates and enviornments all together. A desert has very little water, so all the plants and animals are adpated to such conditions ex: cactus. What animals come to mind in the desert are mostly cold blooded reptiles. Forest ecosystems on the other hand, have just ...
March 26, 2014

Bronies
What are bronies? I hear about it all the time. Does anybody know?
February 11, 2014

algebra 2 honors
2x^2-12x+32=x^2 how would I solve this by factoring?
January 5, 2014

algebra 2 honors
2x^2-12x+32=x^2 how would I solve this by factoring?
January 5, 2014

english
is it possible to find evidence that could ever disprove a conspiracy theory? why/why not?
November 15, 2013

algebra 2
So I am doing my algebra home work and I get stuck on these three problems. x^2-19x+72 from there idk what to do because nothing multiplies up to 72 and adds up to -19. Same for this one. x^2-25x+48 And x^2+9-90 (X+15) (x-6)
November 10, 2013

algebra 2
So I am doing my algebra home work and I get stuck on these three problems. x^2-19x+72 from there idk what to do because nothing multiplies up to 72 and adds up to -19. Same for this one. x^2-25x+48 And x^2+9-90 (X+15) (x-6)
November 10, 2013

math
A traveler went 10 miles south, 7 miles east, 2 miles south, and 2 miles west. How many miles is the traveler from the start?
November 7, 2013

science
I don't know
October 30, 2013

AP chemistry
001 (part 1 of 2) 10.0 points A 1.37-gram sample of compound X (of MW 88.0 g/mol) was burned in a bomb calorime- ter containing 1700 g of water. A temperature rise of 0.95◦C was observed. ∆Erxn for this re- action is −475 kJ/mol of X. What is the heat ...
October 27, 2013

physics
n object is dropped from rest. What is the acceleration after 6 s? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m/
October 20, 2013

social justice
what are some of the social and economic consequences globally due to the shift to lifestyle branding?
October 1, 2013

Math
A total of 68 awards will be given to the soccer team. Each box holds 8 awards. How many awards are in the partially filled box?
October 1, 2013

english
what are your political, economic and autonomy goals?!
September 24, 2013

bio 11
must the steps in the scientific method always be followed in the same order? Explain.
September 4, 2013

bio 11
what is the only difference between a control set up & an experimental set up?
September 4, 2013

8th grade algebra
While on vacation a group can rent bikes and scooters by the week. They gett a reduced rental rate if they rent 5bikes for every two scooters rented. The reduced rate per bike is $15.50 amd the reduced rate per scooter is $160 a week. The sales tax on each rental is 12%. The ...
August 18, 2013

8th grade algebra
While on vacation a group can rent bikes and scooters by the week. They gett a reduced rental rate if they rent 5bikes for every two scooters rented. The reduced rate per bike is $15.50 amd the reduced rate per scooter is $160 a week. The sales tax on each rental is 12%. The ...
August 18, 2013

socials 11
why were provincial premiers opposed to the charter or rights and freedoms?
August 2, 2013

Math
How do i find surface area of a rectangular prism?
July 30, 2013

socials 11
what was pierre's laporte reasons for asking robert baroussa to save his life by meeting the demands of the FLQ?
July 24, 2013

socials 11
discuss the treatment of aboriginal people in Canada during the 20 century
July 24, 2013

socials 11
do you think that Canada is truly a bilingual country? explain.
July 24, 2013

socials 11
do you think that the Canadian Government should have the ability to suspend certain civil rights in "emergency" situations? explain.
July 24, 2013

socials 11
how come illegal immigrants who are entering Canada such a problem for Canada?
July 23, 2013

socials 11
what do you think Canada should do with the economic immigrants arriving off the coast?
July 23, 2013

socials 11
why was the issue of West Coast salmon such a controversial issue?
July 23, 2013

socials 11
explain what increased privatization of the healthcare system would entail, and list the pros & cons of such a system.
July 23, 2013

socials 11
why is health care a growing concern for Canada?
July 23, 2013

socials 11
what do you think is the best solution for Canada's current healthcare predicaments?
July 23, 2013

socials 11 (health care in canada)
why is health care a growing concern for Canadian citizens?
July 22, 2013

socials 11 (health care in canada)
explain what increased privatization of the healthcare would entail, and then list the pros and cons of such a system
July 22, 2013

world geography
They are frozen?
July 22, 2013

Chemistry
calculate the natural logarithm and reciprocal concentration at 0 seconds and NO2 concentration (M) of .8333 and at time 20 (seconds) and .4617 NO2 concentration (M)
July 22, 2013

socials 11
why did Trudeau lose popularity in the 1970s?
July 21, 2013

socials 11
why did OPEC raise the price of oil in 1972?
July 21, 2013

socials 11
why did canada's ties with cuba, in particular, represent a move away from adherence to american foreign policy?
July 21, 2013

socials 11
what did the automotive products agreement change between canada and the us?
July 19, 2013

socials 11
why was the expo 67 a significant moment for French-Canadians?
July 18, 2013

socials 11
why did tvs become so popular after the ww2?
July 18, 2013

socials 11 (post war 1946-1980)
what was the extent of Canada's involvement in the Marshall Plan?
July 17, 2013

socials 11 (the beginning of the cold war)
in what sense did the concept of MAD keep both sides from going to war?
July 17, 2013

socials 11
why was totalitarian needed for ww2?
July 11, 2013

Chemistry
Explain why the FeCl3-KCI-HCl solution was used as a reference solution. Suggest a procedure you could follow to determine whether it was necessary to use this solution as a reference or whether distilled water would have been just as satisfactory.
July 10, 2013

socials 11
explain how the clothing women wore during the 1920s was indicative of their changing role.
July 9, 2013

socials 11
what event in europe inspired the formation of some canadians trade unions?
July 8, 2013

socials 11
what event in europe inspired the formation of some canadians trade unions?
July 8, 2013

socials 11
world war 1 !
July 7, 2013

socials 11
what war-related issue affected French and English relations in Canada for years to come?
July 7, 2013

socials 11
explain why the issue of conscription helped to further divide English and French relations in Canada.
July 7, 2013

math
ok! thanks a lot.
July 4, 2013

math
but the answer should be $ 26. 65 !
July 4, 2013

math
The markup on a restaurant mean is 250%. A meal costs $7.25 to produce. How much will the customer be charged, after markup and 5% GST are applied?
July 4, 2013

socials 11
ww1
July 4, 2013

socials 11
although the German troops met with success against the invading Russian troops, in what way did these battles hurt the Germans?
July 4, 2013

socials 11
what would happen if troops managed to capture the enemy's front line?
July 4, 2013

socials 11
Why did entering no mans land come to mean almost certain death?
July 4, 2013

Government
Homework Help Powers that are shared by both the National Government and the States are called... A) reserved powers B) enumerated powers C) inherent powers D) implied powers E) concurrent powers The Supreme Court carries out most of the country's procedures for persons ...
June 26, 2013

Math
In math we're doing a review sheet and i dont get any of it so can someone please help!! What is the simplest form of the expression Radical 28 + radical 175 - radical 7
May 30, 2013

math
thank you ms.sue
May 22, 2013

math
a jet travels at 435.6 miles per hour. how far will it travel in 6.75 hours?
May 22, 2013

4 grade math
Find two mixed numbers so that the sum is 15 3/10 and the difference is 8 5/10
May 21, 2013

4th grade math
Find two mixed numbers so that the sum is 8 4/8 and the difference is 2 2/8
May 21, 2013

Chemistry
What concentration of SO32– is in equilibrium with Ag2SO3(s) and 3.60 × 10-3 M Ag ? The Ksp is 8.46×10–12.
April 25, 2013

Literature ?! Check my answers?
C C B trust me i just took it
April 17, 2013

physics
A 35,000 kg locomotive is moving at a velocity of 11 m/s east. What is the magnitude of the locomotive's momentum?
April 7, 2013

Math
Jeremy and Cynthia leave at the same time to travel 75 miles to an area. Jeremy drives 15 miles in 12 minutes. Cynthia drives 26 minutes in 20 minutes. If they continue at the same rates, who will arrive at the area first?
April 2, 2013

8th grade math
In the original design for the livingroom genivie ve planned to have a 6ft by 8ft floor rug made after looking at the budget however she discovers she only had enough money to make a .75 times the size of the original how much fringe must she purchase to outline the new rug.
March 25, 2013

social studies
what nation is home to the gonges and indus river
March 20, 2013

World Geography
For good crops, Syrian farmers are still largely dependent on what?
March 19, 2013

Geometry
A 20 foot ladder is leaning aagainst a wall the base of the ladder is 7 feet away from the.wall hkw high up the wall will the ladder reacb
March 11, 2013

Geometry
A 20 foot ladder is leaning aagainst a wall the base of the ladder is 7 feet away from the.wall hkw high up the wall will the ladder reacb
March 11, 2013

Physics
So just for the record, the answer for A is right. For B, when calculating the resistance R, I messed up in regards to the radii. For the length i needed to use r=.034m and for the area r=4.5e-4m. What a silly mistake. Cheers! and thanks for responding! :)
February 17, 2013

Physics
I don't understand what you just did for A. I used emf=change in flux/change in time flux = magnetic field*area according to my book, the answer for A is right. Please explain!
February 17, 2013

Physics
A circular conducting coil with radius 3.40 cm is placed in a uniform magnetic field of 1.090 T with the plane of the coil perpendicular to the magnetic field. The coil is rotated 180° about the axis in 0.222 s. (a) What is the average induced emf in the coil during this ...
February 17, 2013

Chemistry
What is the final temperature after a 11.9 g piece of ice is placed into a Styrofoam cup containing 110 g of hot water at 73.3 degrees Celsius?
February 15, 2013

math
Charles mixed pineapple juice and orange juice to make a fruit punch. He made a total of 5 1/2 cups of the mixture and used 2 more cups of orange juice than pineapple juice. How much did he use of each type of juice?
February 12, 2013

Chemistry
Part A answer was number two and Part B was number one
February 5, 2013

math average!
My average is a 74 right now. My grades are 70( which counts as 60% as my grade and i have 2 more major test coming up) 94, 60 (which counts as 25% and i have about 5 more of this coming up) 90,100,83,91,71( i have about 3 more of these and they count as 15%) This was an ...
February 4, 2013

math
I have a 76 average right now, what grades do I need to get if i have 5 more tests and need to get an 85 average?
February 4, 2013

Math
Gina cut a piece of ribbon into 3 equal pieces. Then she cut off 2 inches off one piece to make it 3 inches. How long was the original piece of ribbon?
January 30, 2013

Algebra
LCD of x/x2+3x , 2x/x2-3x
January 27, 2013

Physics
Vf=Vi+at Vf=20 m/s+ 7m/s^2*3s Vf=41 m/s
January 15, 2013

Physics
Three point charges are on the x axis: −6 µC at −3 m, 7 µC at the origin, and −5 µC at 3 m. Find the force on the first charge. The value of the Coulomb constant is 8.98755 × 10^9 N · m^2/C^2.
January 15, 2013

physics
A point charge of +1 µC is located at x = −2 cm and a second point charge of −8 µC is located at x = 6 cm. Where should a third charge of +1 µC be placed so that the electric field at x = 0 cm is zero?
January 15, 2013

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