# Posts by Erin

Total # Posts: 696

Physics
You shoot an arrow into the air. 2.oo seconds later the arrow has gone straight upward to a height of 30 meters above its launch point. (a) What was the arrow's initial speed? (b) How long did it take for the arrow to first reach a height of 15 meters above it's launch...

physics
An Astronaut on the Moon drops a rock straight downward from a height of 1.25 meters. If the acceleration of gravity on the Moon is 1.62 meters per second squared, what is the speed of the rock just before it lands?

college math
please help me write the equation and solve for it. 1).in a basketball game, eric made half as many free throws as dan. if the total number of free throws made by both men was 18, how many free theows did eric make?

how can granite and slate peices be held together?

no im in 6th writeacher u r rong. i just got done w/ that i will help u in a minute

physics
A helicopter is rising at 5 m/s when a bag is dropped. After 2 seconds what is the bag's velocity? what is the bag's position? and how far below the helicopter is the bag?

college math
write the decimal as a fraction or a mixed number. write your answer in simplest form. .3282 so far i got this, 3282/100,000 then simplified to 1641/50,000

Physics
what is the volume of an object whos density is 2.2 g/cm^3 and has a mass of 50 g?

physics
A car moving with a constant acceleration covers the distance between two points 80 m apart in 8.0 s. Its velocity as it passes the second point is 14 m/s. (a) What was the speed at the first point? 1 m/s (b) What is the constant acceleration? 2 m/s2 (c) How far behind the ...

Mathematics
"Write the unit rate as a fraction" "25 feet per second" How do you solve this?

anatomy
Voluntary actions are controlled within the _________ of the frontal lobe

Algebra
Determine the approximate maximum distance y=-0.01x2 +0.7x+6.1

math
Write a linear function that satisfies the given conditions: f(0)=12, F(3)= -2

Math
Write an equation of the line that is perpendicular to the line y=2x-1 and passes throgh the point (0,-3)

Algebra
How do i simplify this? [(3x+1)/(x-2)] + [(2x-1)/(x-2)]

Life orientation(Reaseach)
I have a human rights poster to complete and i need help.

geometry
the area of a trapezoid is 108 square inches and one of its bases has a length of 8 inches. If the height of the trapezoid is 1.5 feet,f ind the length of the other base in inches.

physics
A shiny metallic Christmas ball ornament 5.10 cm in diameter is used as a mirror. What is the mirror's focal length? please answer in cm. thanks.

Math
I really need a math dictionary... I need the following definitions Please: point line intersecting lines parallel lines vertical lines horizontal lines acute angle obtuse angle right angle square rectangle trapezoid rhombus pentagon hexagon octagon triangle circle chord ...

Math
But when i search a word I didn't understand what it meant. Can anyone help me find a GOOD math dictionary?

Math
Thanks Ms.Sue!! It has been a LONG time since I posted!!

Math
I need the following definitions Please: point line intersecting lines parallel lines vertical lines horizontal lines acute angle obtuse angle right angle square rectangle trapezoid rhombus pentagon hexagon octagon triangle circle chord radius diameter cube rectangular prism ...

science
What mass of water, in grams, would have to be decomposed to produce 26.3 L of molecular oxygen at STP?

physics
Two children are having a splashing competition using a diving board. The first child is very small and jumps lightly off the end of the diving board. The second child, who is much larger, jumps heavily off the board. A. In what way or ways, if any, are the vibrations of the ...

Geology
The Love of Christ

Language Arts
Well actually, why wouldn't there be a comma after the yes? Why is there one after squeaky?

Language Arts
thanks!

Language Arts
In this sentence: I held it back and managed a squeaky "yes" in response. How would you correctly punctuate the yes part?

chemistry
Calculate the molar solubility of Cu(OH)2, Ksp = 2.2 × 10–20, in 0.52 M NH3. Don't forget to use the complexation reaction Cu2+ + 4 NH3 ⇌ Cu(NH3)42+, K = 5.0 × 1013 What does he mean by the complexation reaction??? So confused, please help!!!

Math
Solving quadratic equations by graphing? 3. x2-4x + 6 = 0 4. x2-4x-1=0 5. 4x2-12x + 3 = 0 6. x2-2x-4=0

The Great Gatsby Movie Discussion Questions? Compare and contrast Gatsby's social class with that of Tom and Daisy Buchanan. How does geography contribute to the definintion of social class in The Great Gatsby? What part of his past is Gatsby trying to recapture? Is he ...

AP World History
You're right, I can easily rewrite a fairly similar essay. Thank you for your help!

AP World History
Comparing the four Classical Societies, in essay format, of China (Han & Qin), India (Gupta empire) and Rome and Greece. I really need a good essay because I lost mine the day it was due and now it's late.

Pre-Algebra
Thank you so much! It makes sense now!

Pre-Algebra
I need help with scales, please! Q: You are making a scale drawing of a room using a scale of 1-inch:4-feet. a) The room is 14 feet by 18 feet. Find its dimensions in the drawing. b) A sofa in the room has a lenght of 6 feet. Find the length of the sofa in the drawing. Thank ...

geometry honors
if the volume of the pyramid is 64 feet cubed and the height is 16 feet what is the area of the base measured in square inches?

World History
Why was Egypt important to Europeans in the nineteeth century? Great Britain was determined to have complete control of the Suez Canal. Why? How did European lead to the Boer War? How did the French system of colonial rule differ from that of Great Britain? Why were many ...

English

English
it means anger, and hatred. hatred for the cat?

English
Need help with symbolism project. thank you for your help.? I need help with explaining symbolism of the axe from Black Cat. Do you know what symbolism mean is? THANK YOU FOR YOUR HELP am i right? Did the narrator kill his wife's brain with a axe? what is the symbol of the...

Maths
Two polygons have te number of their sides in the ratio 1:3.The sums of their interior angles are in the ratio of 4;1. Find the number of sides of each polygon.

English
Need help with symbolism project. thank you for your help.? I need help with explaining symbolism of the ax from black cat. Do you know what symbolism mean is? THANK YOU FOR YOUR HELP example: etc

literature
The narrator killed his wife in her brain with the axe? am i right?

literature

literature
killed Pluto? i don't know the ax symbolizes. You need to explain what ax symbolizes from The Black Cat.

literature
Need help with symbolism project. thank you for your help.? I need help with explaining symbolism of the ax from Black Cat. Do you know what symbolism mean is? THANK YOU FOR YOUR HELP

chemistry
what mass of magnesium is needed to reduce a 500ml sample of oxygen at stp to a 375ml sample? Mg + O2--> MgO + O2

science
what is a name given to all of the functional parts that float in cytoplasm??? ( it has to be 10 letters)

Science
what is an 11 lettered word that means "a cell without a membrane?

math
Hi i forgot what the mode and mean are. Can anyone remind me??

Physics
A 210 g air-track glider is attached to a spring. The glider is pushed in 12.0 cm against the spring, then released. A student with a stopwatch finds that 13 oscillations take 16.0 s. Find the spring constant k.

science
Thank you Ms.Sue!

science
What is the definition of "Organ System"?

algebra
Please help! How do I solve this problem? 4 - 4 __ __ x+2 x _________ = 1 2

Math
well my father made me do that and he was WRONG!!

Math

ap chemistry
pentane is burned completely in oxygen gas. what is the balanced equation?

ap chemistry
a potassium hydroxide solution is titrated with a solution of perchloric acid. what is the balanced equation?

Christmas
thank you!

Christmas
Where can I find accurate information on Christmas?

Writing

Writing
i just wanted to write something

Writing
What can I write about? (holidays, History people,etc.)

English

math fractions
turn them into decimals

Social Studies
Heyy!! I have to do posters on A Lincoln any ideas?

5.10.15.20.25.30.... while... 10,20,30........... so Each 10 has two 5's.

Poem Contset!!
thanks and sorry i spelled it wrong.

Poem Contset!!
There is a poem "contest" at my school and If I write a poem that's good it may go in a book! The only problem is I can't really write a GOOD poem. Can anyone post a site that may help Me? THanks, ErIn

chemistry
how many mL of 1M HC2H3O2 are required to neutralize a spill of 25mL of 6M NaOH?

how do you do these problems?? 5-26 2-2/9 8-2/3 4/3+6 But I can do these types pf problems ( don't need help with problems below) 3/4 + 1/10 and 5/6 - 1/4 Please Help!! Thanks!!!

Math
ooppps i said it wrong!!!it's 5 - 2/6 sorry !

Math
how do you do these problems?? 5-26 2-2/9 8-2/3 4/3+6 But I can do these types pf problems ( don't need help with problems below) 3/4 + 1/10 and 5/6 - 1/4 Please Help!! Thanks!!!

math
(# = a tile) 1: #### #### 2: ## ## ## 3: ## ## ## ##

tens:1 Ones:2

Grammar/English
there is a period after Holly i really can't see it either.... Thanks for the help!!

Grammar/English
It's 2 different sentences right???

Grammar/English
i know how to do it i just need it checked "The street was blocked of." said Holly, "How do you see it?" do I have a How or a how???

Grammar/English
Please correct this sentence, the street was blocked off said Holly how did you see it Thanks!!

Physics
A 1.6kg box that is sliding on a frictionless surface with a speed of 11m/s approaches a horizontal spring. The spring has a spring constant of 2000 N/m. a. How far will the spring be compressed in stopping the box? b. How far will the spring be compressed when the box's ...

physics
An RC car has a power rating of 12 W and a mass of 1.0 kg. How long would it take to reach 5 m/s ? thanks.

math
no

Origami Sites
Thanks!!

Origami Sites
Hi. I can't find any origami sites to make easy Christmas presents. Can anyone help me! Thanks, Erin

I don't know what Subject!!
thank you

I don't know what Subject!!
Why do we celebrate Thanksgiving Day?

Thanks on thanksgiving
Your Welcome. I kind of skimmed them

Thanks on thanksgiving
With all the help you did for me i want to give a treat. here are some thanksgiving poems I found. Thank You For Inviting Us Thank you for inviting us To your Thanksgiving dinner. A day spent in your company Is invariably a winner. Thank you for the time you spent Preparing ...

US history multiple choice
I just always listen to Ms.sue

math
yepp

math
what is the x and y intercept of 4x+7y=8?

5th math
Well there is no mode or all the #'s are the mode. See if that helps.

Thanks Ms.Sue. You're the best!

I need information on Abraham Lincoln's adult hood. Can anyone give me a site that is not the wiki please? Thanks

Chemistry
How many grams of NO gas can be produced from 80.0mL of 4.00M HNO3 and excess Cu? 3Cu + 8HNO3---3Cu(NO3)2 + 4H20 + NO

Chemistry
If the amount of raidoactive iodine-123 in a sample decreases from 0.4 to 0.1 g in 26.2 hours, what is the half-life of iodine-123?

Science
What is the function of a Vesicle cell?

Social Studies
thanks!

Social Studies
Hi Jiskha!! I have been researching the Civil war and wanted to know it you can add to this. No this is not my work it is essays and summary's i found on the computer, this is what I found: Summary of the Civil War: Fought 1861-1865, the American Civil War was the result ...

math
Good job Lilly!!

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