Saturday
December 10, 2016

Posts by Tessa

Total # Posts: 107

physics
Two workers are moving a slab of ice (m = 290 kg) across the factory floor. As seen from above, one worker exerts a force of 415 N at an angle of -20o, and the other exerts a force of 470 N at an angle of 50o. What is the magnitude of the acceleration of the ice slab?
September 14, 2016

physics
A major-league pitcher can throw a baseball in excess of 41.3m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches a catcher who is 15.2m away from the point of release?
September 14, 2016

Physics
A hot-air balloon is rising upward with a constant speed of 2.10m/s. When the balloon is 3.18m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?
September 14, 2016

math
How to find L.C.M
July 25, 2016

math
I feel dumb for not knowing how to do this, but how would these numbers be converted into cents? \$.003253 per kWh. \$0.00825 decrease per kilowatt hour
May 13, 2016

synonyms
Does overhaul and remodel essentially mean the same thing?
May 9, 2016

Writing
What's the best way to say that someone resigned from council because the timing conflicted a full-time job?
April 15, 2016

Science
1.Explain the process of succession. 2.Describe how changes in an ecosystem can affect organisms that live there. 3.Describe the amount of time needed for ecosystem recovery
March 11, 2016

health
I believe the answer is Omega-3 , but I'm not exact. I hope this helps! :3
March 9, 2016

Social Studies
13.) D 14.) A ????????????
February 26, 2016

Urgent! PLZZ HHEELLPP!!
Instead of D is number 9 B?
February 26, 2016

Urgent! PLZZ HHEELLPP!!
8. Which answer best describes a main benefit of the Transcontinental Railroad? A.) It proved to the world that the United States was capable of great feats of engineering B.) It created safe, high-paying jobs for immigrants who wanted to work building the railroad C.) It ...
February 26, 2016

History
Instead of C is number 7 A?
February 26, 2016

History
5. Which of the following best summarizes why the Missouri Compromise needed to be replaced by the Compromise of 1850? A.) Members of the Congress wanted to end the question of slavery in the U.S. B.) The U.S. wanted to sell the territory gained after the Mexican-American War ...
February 26, 2016

History
ok thank u
February 26, 2016

History
If 4 is not C then is it D?
February 26, 2016

History
So if 4 is not C what is it? I don't understand.
February 26, 2016

History
3. Support for the Mexican-American War are most closely connected with support for which of these ideas? A.) Manifest Destiny**** B.) Transcendentalist Movement C.) Great Awakening D.) Monroe Doctrine 4. Read the information below: During the 1820's and 1830's, many ...
February 26, 2016

Health
thank you
February 18, 2016

Health
4.) Most unintentional poisonings occur in children under... (1 point) A. 10 B. 2 C. 5 *** D. 6 months 9.) As a universal precaution, use ___ whenever possible if you are going to be in contact with bodily fluids. (1 point) A. latex gloves *** B. band-aids C. lotion D. water ...
February 18, 2016

health
The answer is PCP ( c )
November 20, 2015

Science
btw all is right except 2 its B
November 6, 2015

Career
thanks!! 100%
October 1, 2015

Health
wouldnt choking be the common emergency?
May 19, 2015

science
so the answer is hot right because im stuck on that too???
April 9, 2015

physics
A bicycle has wheels with a diameter of 0.570 m. It accelerates uniformly and the rate of rotation of its wheels increases from 181 rpm to 260 rpm in a time of 19.9 s. Find the linear acceleration of the bicycle. i tried converting everything to linear to use a linear equation...
February 21, 2015

me too 100%%
November 17, 2014

Colle physics
For an object in uniform circular motion, on what parameters does the experimental determination of the centripetal force depend when using F = ma
October 28, 2014

english
how do u write an outline over someone you admire like for instant my cousin who helped me in band, athletics and school work??
September 23, 2014

Algebra
HELP! I am not sure how I would even start this problem or solve it. A hyperbola with a horizontal transverse axis contains the point at (4, 3). The equations of the asymptotes are y-x=1 and y+x=5 Write an equation for the hyperbola.
July 26, 2014

geometry
What type of quadrilateral is formed by connecting the points (0,0), (3x,b), (18x,b), and (15x,0)? Explain. How would I solve this?
June 24, 2014

geometry
What type of quadrilateral is formed by connecting the points (0,0), (3x,b), (18x,b), and (15x,0)? Explain. How would I solve this?
June 24, 2014

chemistry
How many grams of magnesium metal will react completely with 5.2 liters of 4.0 M HCl? Show all of the work needed to solve this problem. Mg (s) + 2 HCl (aq) yields MgCl2 (aq) + H2 (g)
May 21, 2014

Chemistry
How many grams of iron metal do you expect to be produced when 245 grams of an 80.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal? Show all of the work needed to solve this problem. 2 Al (s) + 3 Fe(NO3)2 (aq) yields 3 Fe (s) + 2 Al(NO3)3 (aq)
May 21, 2014

math
there right
April 30, 2014

chemistry
A certain acetic acid solution has pH = 2.14. Calculate the volume of 0.0900 M KOH required to reach the equivalence point in the titration of 35.0 mL of the acetic acid solution.
April 3, 2014

educational technology
just made 100% all of u guys are right!!! Thx peeps!
March 30, 2014

science
why is gravity on earth and not on the moon i need something to help me start it off
March 7, 2014

chemistry
what volume would 4.3 moles of hydrogen gas occupy at 45 degrees and 3.22 atm?
February 27, 2014

social studies
I NEED HELP!!!!!
February 23, 2014

Socials
What does the biome in Kamloops look like? What are the critters and vegetation in this region?
February 18, 2014

Science
K thank u:)
February 18, 2014

Science
That didn't even answer the questions? A b and c were questions not options
February 18, 2014

Science
Consider a neutral atom that has 17 electrons A.) how many protons does it have? B.) what is it's atomic number? C.) which element is it?
February 18, 2014

Science
1. Consider a neutral atom that has 17 electrons A.) how many protons does it have b.) what is it's atomic number c.)which element is it 2. List the following for an atom with 33 protons and 42 neutrons a.) the name of the element b.) the atomic number C.)the number of ...
February 17, 2014

Essay direction clarification
Shew thanks! You just made my night! Sometimes I obsess too much :) Thank You
October 9, 2013

Essay direction clarification
I am trying to prepare in my head for an essay exam that I will be having tomorrow and I would like to know how you would interpret the professors instructions - "Please prepare to answer one of the following in an essay of at least four paragraphs including an ...
October 9, 2013

English II - Poisonwood Bible
Thanks! I will definitely check it out. I have drafted a basic outline like what I intend to write. I have a topic, Leah's overall change and how it changed us. And I have all the evidence written down with page numbers etc. Once again thank you for your help!
October 4, 2013

English II - Poisonwood Bible
I'm trying to come up with a thesis statement also I need help with a question. How does Leah Price's changes in the book change us, the reader? As for my thesis statement, I have sort of an idea of what I want it to be like... Leah alienates herself from the Congolese...
October 4, 2013

Thank you, that sounds so much better - and way shorter! I have never been good with thesis statements! Thanks once again!
September 30, 2013

I need help with making a thesis statement for an essay I have to write on the book Poisonwood Bible The prompt I have says : Choose a novel or play that depicts a conflict between a parent and a son or daughter. Write an essay in which you analyze the sources of the conflict ...
September 30, 2013

math
Describe and correct the error made in solving the literal equation at the right for n. 2m = -6n + 3. 2m + 3 = -6n. 2m + 3/-6 = n
September 11, 2013

math
There are 25 cars in a parking lot. Nine of the cars are red. The rest of the cars are black and white. A. What percent of cars in the lot are red? Not red? B. describe two ways to determine the percent of cars that are not black given the number of white cars.
April 29, 2013

algebra
shes right both are correct just got a 100
March 19, 2013

Physics
Suppose you are stopped for a traffic light, and an ambulance approaches you from behind with a speed of 19.0 m/s. The siren on the ambulance produces sound with a frequency of 960 Hz as measured when you are at rest relative to the ambulance. The speed of sound in air is 343 ...
March 1, 2013

Chemistry
How many molecules of ethane (C2H6) are present in 0.249 g of C2H6? Enter answer in scientific notation.
February 19, 2013

Physics
Suppose the battery on your phone delivers a current of 0.740 mA (that's milliAmperes) over a time of 4.00 hours. What is the total charge that flows out of the battery during this time? AND How many electrons flow out of the battery during this time?
January 28, 2013

A. random sample of 50 four year olds attending daycare centers provided a yearly tuition average of 3987\$ and the population standard deviation of \$630. Find the 90% confidence interval of the true mean. and B. If a daycare center were starting up and wanted to keep tuition ...
November 24, 2012

A. random sample of 50 four year olds attending daycare centers provided a yearly tuition average of 3987\$ and the population standard deviation of \$630. Find the 90% confidence interval of the true mean. and B. If a daycare center were starting up and wanted to keep tuition ...
November 23, 2012

Math/statistics
Thirty five percent of adult americans are regular voters. A random sample of 250 adults in a medium size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on the results. ...
November 23, 2012

Math/statistics
a recent study indicated that 29% of the 100 women over age 55 in the study were widows. a. How large a sample must you take to be 90% confident that the estimate is within 0.05 of the true proportion of women over age 55 who are widows? b. If no estimate of the sample ...
November 23, 2012

statistics
In a sample of 200 people, 154 said they watched educational television. Find the 90% confidence interval of the true proportion of people who watch educational television. If the television company wanted to publicize the proportion of viewers, do you think it should use the ...
November 23, 2012

chem
When dealing with acids and dissociating, remember that only certain acids dissociate. Those are the strong acids and they are: HCl, HBr, HI, NHO_3, H_2SO_4, HClO_3, and HClO_4. All other acids not listed are weak acids. Perchlorate splits because it is a strong acid. Remember...
October 29, 2012

Math
Which gender typically watches more television per month? Justify your answer. MALE |. . . . :. . . : .: .. . .: . . . . . FEMALE| . . .:. . . .::.. ::. .. . . | | | | | | | 700 1050 1400 1750 2100 2450 2800
April 20, 2012

CHEM
How did you get that? I'm stuck on getting to 183.18
March 16, 2012

I don't understand. in the formula Q=C*M*deltaT, do you use 4.200 kj/mol as C. Is the answer to question one, calculate the heat involved in the trial, 1.19 KJ?
January 1, 2012

This is the second reaction: HCl(aq)+NaOH(aq)-->NaCl(aq)+H2O(l) (Heat of neutralization) This reaction involves mixing two solutions: 1.00 mol/L NaOH and 1.00 mol/L HCl. Trial 1: 48.0 mL of the NaOH solution is mixed with 47.5 mL of the HCl. The temperature rises from 22.00...
January 1, 2012

Physical Education
In your role within a structure discuss the importance of communication. Provide examples that you have used. (4)
September 22, 2010

Physics
The combination of an applied force and a frictional force produces a constant total torque of 38.1 Nm on a wheel rotating about a fixed axis. The applied force acts for 7.00 s, during which time, the angular speed of the wheel increases from 2.40 rad/s to 12.5 rad/s. The ...
April 26, 2010

ice skater world problem
A skater spins with an angular speed of 12.4 rad/s with her arms outstretched. She lowers her arms, decreasing her moment of inertia by a factor of 8.00. Ignoring friction on the skates, what will be the skater's final angular speed?
April 26, 2010

Physics
A solid bar of length L = 1.30 m has a mass m1 = 0.893 kg. The bar is fastened by a pivot at one end to a wall which is at an angle è = 33.0 ° with respect to the horizontal. The bar is held horizontal by a vertical cord that is fastened to the bar at a distance a ...
April 26, 2010

Physics: merry-go-round question
A playground merry-go-round of radius 1.92 m has a moment of inertia 411 kg m2 and is rotating at 10.4 rev/min. A child with mass 38.3 kg jumps on the edge of the merry-go-round. Assuming that the boy's initial speed is negligible, what is the new angular speed of the ...
April 26, 2010

physiology
i think its between the 2 and 3rd one
April 26, 2010

Physics
I don't understand how you get the answer. What is the Vb, Va and Q?
February 22, 2010

Algebra 2
Hey I am working on math homework that involves "Standard Form to Vertex Form by Averaging." My class is just starting to learn this today, but I am totally lost still on what to do. Can you please help? The formula for this is y=a(x - h)^2 + k the h is the x-value ...
February 8, 2010

Algebra 2
i have alot more like this and i don't seem to remeber how to get 'h'
February 8, 2010

Algebra 2
Hey I am working on math homework that involves "Standard Form to Vertex Form by Averaging." My class is just starting to learn this today, but I am totally lost still on what to do. Can you please help? The formula for this is y=a(x - h)^2 + k the h is the x-value ...
February 8, 2010

Economics
I need help finding two sources about real estate monetary and fiscal policies. The sources need to help me answer the following questions... How have these policies affected... 1. employment rates for real estate? 2. growth of real estate? 3. prices of homes?
November 28, 2009

religion
i don,t no.
September 26, 2009

geometry
A rectangular garden that is W ft wide is enclosed by 120 ft of fencing. How long is the garden?
September 24, 2009

biology
diffusion
September 23, 2009

Math
Here's a couple examples from my homework. If someone could help me solve this by showing me step by step what to do, it would be so great. Also, any websites that would show me the steps too. Thanks so much. I have to get all my work done by tomorrow and I'm kinda ...
March 15, 2009

Sci 275
I asked this already but was not clear on what I needed help with. My assignment is on water pollution. Write a 700- to 1,050-word paper in APA format that includes the following: o A brief description of your selected water resource issue and how it originated. o A management...
February 22, 2009

Sci 275
I did not want my paper written for me, I have it started already and am now stuck. For example, I cannot find opposing viewpoints on water pollution.
February 22, 2009

Sci 275
Write a 700- to 1,050-word paper in APA format that includes the following: o A brief description of your selected water resource issue and how it originated. o A management and sustainment plan that you think will alleviate the problem. o Any opposing views of the issue. o ...
February 22, 2009

Math
Did you give us all the information? Because I don't know how you'd be able to solve that without knowing the amount of apples and/or oranges.
February 19, 2009

Quick question
Just so I can know in the future, how exactly did you figure those points out? Thanks!
February 19, 2009

Algebra
Solve graphically. x-y=0 y=x² The reason I don't understand the question is the second equation with the x². How do I graph that? I'm not sure if I ever graphed with an exponent, and if I did, it was a long time ago. I'm reposting this because I didn'...
February 19, 2009

Well, if you have a calculator (not one that has just the numbers and symbols, a more middle school one. If you don't have one, an older sibling might), there is a fraction to decimal key. It looks like this F◄ ►D, kind of. At least on my calculator, a Texas ...
February 19, 2009

algebra
Solve graphically. x-y=0 y=x² The reason I don't understand the question is the second equation with the x². How do I graph that? I'm not sure if I ever graphed with an exponent, and if I did, it was a long time ago. Thanks!
February 19, 2009

Quick question
So that means the amount of baking soda is the same as 4 vinegar?
February 19, 2009

Algebra
Translate to a system of equations. DO NOT SOLVE. A nontoxic scouring powder is made up of 4 parts baking soda and 1 part vinegar. How much of each ingredient is needed for a 16-oz mixture? What are the two equations? For most problems, I can easily find the info for the two ...
February 19, 2009

Describe what you think are some of the positive and negative issues related to political action committees and interests groups.
December 2, 2008

History
Who is the best president in your life time? I am going back to high school, so tell me what you think about my answer. Well I think the best President was George Washington for his leadership throughout the Revolutionary War. But since I was not alive when he was in office I ...
November 26, 2008

what is the verb in this sentence: He's very smart.
November 24, 2008

Find the unit rate: \$10.99 for 12 slices of pizza
November 19, 2008

math
expressions with possitive and negative exponents. how do u leave no exponents in the denominator?
October 26, 2008

English
dramalanse: salamander
September 5, 2008

Algebra
find the equations of the normals to the curve xy=4 which are parellel to the line 4x-y-2=0
June 8, 2008

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