Tuesday

March 31, 2015

March 31, 2015

Total # Posts: 79,550

**physics**

A 200-kg rock is being pulled upward with an acceleration of 3 m/s2. The net force on the rock is
*January 27, 2015*

**Math**

Urgent Help!
*January 27, 2015*

**Math**

Ratio of tickets Mark to Julia is 4:3. Julia has 36 tickets. How many tickets did they have together?
*January 27, 2015*

**L.A**

Thanks!
*January 27, 2015*

**Physics**

A +1.3-nC point charge is placed at one corner of a square (1.1 m on a side), and a -3.1-nC charge is placed on the corner diagonally opposite. What is the magnitude of the electric field at either of the other two corners?
*January 27, 2015*

**English**

Her refers to she.
*January 27, 2015*

**science**

It would expand
*January 27, 2015*

**math 4th grade**

llene is making smoothies. The recipe calls for1 1/4 cups of strawberries. How many cups of strawberries, written as a fraction greater than one, are used in the recipe?
*January 27, 2015*

**chemistry**

Calculate the number of collisions per second of one hydrogen molecule at 24 °C and 1.00 bar. The diameter of a hydrogen molecule is 270 pm.
*January 27, 2015*

**physics**

nvm bob, i figured it out and got it right on my homework thanks for your help!
*January 27, 2015*

**physics**

are you sure 8.6?? i'm getting 8.4
*January 27, 2015*

**physics**

I have no idea, that's what my calculator is coming up as when i type in (28*10^-12)(300) and since my homework is asking for 2 sig figs, i put 8.0
*January 27, 2015*

**physics**

This is my full work... First I had to find the capacitance so, C=[(8.85*10^-12)(.04)^2]/.0005 =2.832*10^-11 F =28.32 pF Now I have to find the charge on the positive electrode, so i tried Q=CV =(28*10^-12)(300V) =8.0*10^-9 but it's wrong
*January 27, 2015*

**physics**

yes! that's exactly what I thought. So i ended up figuring that out and got 2.8*10^-9 coulombs but somehow it's still wrong
*January 27, 2015*

**physics**

Two 4.0cm × 4.0cm square aluminum electrodes, spaced 0.50mm apart are connected to a 300V battery. What is the charge on the positive electrode? I already found the capacitance which turned out to be 28 pF.
*January 27, 2015*

**SCIENCE HELP NEED ANSWERS FAST!!!!!!!**

breh
*January 27, 2015*

**English**

What kind of a source is a cartoon & a song about the sinking of Titanic? I would say that they're both secondary sources.
*January 27, 2015*

**science need answers fast!!**

two blocks of 10kg and 4kg are in contact with each other on a frictionless. 25n force is applied horizontally
*January 27, 2015*

**Social Studies**

YEAAA!!! THANK YOU @MS. Sue!!! Here they are :) 5.Which statements describe the Persian Empire?Choose all answers that are correct. A. The Persians looked down on the culture and knowledge of the peoples they conquered.** B. Cyrus oversaw a period of great peace and prosperity...
*January 27, 2015*

**Social Studies**

Thank you so MUCH!!! Do you have time to check over a few more for me PLEASE?
*January 27, 2015*

**Social Studies**

Thank you @Ms. Sue :) okay so on #3 I couldn't figure it out, but now I want to say it is A. THANK YOU AGAIN!!!
*January 27, 2015*

**Social Studies**

1.Which Persian emperor was defeated by Athenian forces at the Battle of Marathon? A. Darius** B. Cleisthenes C. Miltiades D. Solon 2.Which Greek historian chronicled the events of the First and Second Persian Wars? A. Plato B. Sophocles C. Thucydides D. Herodotus** 3.Which ...
*January 27, 2015*

**Social Studies**

Thank you again @Ms. Sue!! You where a lot of help:) I left my book and was going off my study guide and brain :)!!!
*January 27, 2015*

**Social Studies**

Could you please check my answers for me @Ms. Sue?
*January 27, 2015*

**math**

Mindi planted beans in 4/10 of her garden. What fraction of the garden has beans or peas?
*January 27, 2015*

**algebra**

The cost of renting a sailboat at a lake is $20 per hour plus $12 for life jackets. Write an equation in slope-intercept form that can be used to calculate the total amount you would pay for using this sailboat.
*January 27, 2015*

**math**

andrew read 24 pages of a book on Monday. He read 5/12 of the book on Monday and completed the remaining 1/4 on Tuesday. How many pages are in the book?
*January 27, 2015*

**Art**

;) Super glad you got 100% as well!
*January 27, 2015*

**Art**

I saw that one and it really confused me... I thought it was c!
*January 27, 2015*

**Art**

even the multispectral-x ray one?! Yay!!!
*January 27, 2015*

**Art**

Yes, for sure :)
*January 27, 2015*

**Math**

The area of a parallelogram is 84 cm² the base of the figure is 12 cm what is the height?
*January 27, 2015*

**Physics**

A 0.145 kg baseball pitched at 39.9 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between r the bat and ball is .001 s, calculate the average force between the ball and bat during contact. I know the answer is 13300 N, ...
*January 27, 2015*

**Art**

Wait so is it B or C
*January 27, 2015*

**Art**

Not a problem at all, I know how stressful it can get ;) Please tell me if it is right, and if your answer C for the multispectral-x ray one was also good :)
*January 27, 2015*

**Art**

Callie, I am super sure that is the answer. ;) Hope this helps and please let me know if correct :)
*January 27, 2015*

**Art**

Yes, 100% sure! :)
*January 27, 2015*

**Math**

The average size 8 shoe is approximately 8 1/2 inches plus or minus a quarter of an inch . Write and solve an absolute value inequality that shows the range of possible lengths of a person'a foot that would wear a size 8.
*January 27, 2015*

**math**

A rectangular room is 20 meters by 25 meets. It cost $20.00 per square meter to paint a room. How much would it cost
*January 27, 2015*

**math**

a carpenter has several boards of equal length. he cuts 3/5 of each board . after cutting the boards the carpenter notices that he has enough pieces left over to make 4 of the original boards. how many boards did the carpenter start with
*January 27, 2015*

**Art**

callie, did you get it right?
*January 27, 2015*

**Art**

was it C? Thanks sooo much ;)
*January 27, 2015*

**Algebra**

use the function rule f (x) = 3x - 2 find the output f (1.5) a. 2.5 b. -2.5 c. 6.5 d. -6.5
*January 27, 2015*

**English**

I was always told to write out my thoughts and pick a random thing from what I'm thinking of. It's actually quite useful.
*January 27, 2015*

**achieving excellence**

Part 1 of 1 - 5.0 Points Our learning style refers to: A. how much we know. B. how we best understand information. C. how fast we read and write. D. what we are learning. Reset Selection Mark for Review What's This? 5.0 Points Being ...
*January 27, 2015*

**Physics **

In the sum Vector A plus Vector B equals vector C, vector A has a magnitude of 11.6 m and is angled 36.5° counterclockwise from the +x direction, and vector C has a magnitude of 14.0 m and is angled 17.1° counterclockwise from the -x direction. What are (a) the ...
*January 27, 2015*

**Science**

You can apply Newton's Second Law, which is essentially Force = Mass x Acceleration. For the first question, have a mass of 40kg and an acceleration of 10m/s^2, which means that the Force will be 400N. 1. Calculate force by multiplying mass by acceleration, so 60kg x 2.0m/...
*January 27, 2015*

**Art**

Yup, it's C.
*January 27, 2015*

**Art**

I think C, please tell me if this is correct :) It means the world to me :)
*January 27, 2015*

**Art**

Can't it be A?
*January 27, 2015*

**chemistry**

a 126g iron rod has a heat capacity of 58 j. What is the specific heat of iron?
*January 27, 2015*

**English**

thank you so much !!
*January 27, 2015*

**English**

can you give me five speeches that have become historically important ??
*January 27, 2015*

**MATH**

Sabah has $450 to pay for college textbooks. She expects to pay about $75 per book. Her friend told her that 4 of them can be checked out of the library for free. Complete the equation below to find the total number of books that Sabah can get for her classes. Use b to ...
*January 26, 2015*

**physics**

In the sum Vector A plus Vector B equals vector C, vector A has a magnitude of 11.6 m and is angled 36.5° counterclockwise from the +x direction, and vector C has a magnitude of 14.0 m and is angled 17.1° counterclockwise from the -x direction. What are (a) the ...
*January 26, 2015*

**Math**

On a centimer dot array draw all possible rectangles with perimeter of 16 cm and sides whose lengths are whole centimeters label the lengths of two adjacent sides of each rectangle
*January 26, 2015*

**Physics - Vectors**

The dot product
*January 26, 2015*

**Physics - Vectors**

It should be Vector B instead of Upper B
*January 26, 2015*

**Physics - Vectors **

Vector A has a magnitude of 2.2 units, vector B has a magnitude of 10 units, and Vector A times Upper B has a value of 14.0. What is the angle between the directions of Vector A and Vector B?
*January 26, 2015*

**pscy**

If pseudo-psychologies have no scientific basis, how do they survive and why are they so popular?
*January 26, 2015*

**Algebra**

I need help on this following problem: The length of a rectangle measures 1 cm less than its width. The perimeter of the rectangle is 106 cm. Find the dimensions of the rectangle. Now i have tried to solve this problem in multiple attempts as can be seen here: 54+53=107, 53+52...
*January 26, 2015*

**chem**

The radius of a iron atom is 124 pm. How many iron atoms would have to be laid side by side to span a distance of 1.75 mm?
*January 26, 2015*

**Language Arts**

Thank you so much :)
*January 26, 2015*

**math **

Taylor baked a cake to serve after dinner suppose she cut the cake into 8 equal size pieces and 6 people ate all the pieces explain how they could have divided the pieces so that everyone ate the same amount of cake
*January 26, 2015*

**physics**

A little girl with a mass of 33 kg jumps on a trampoline that has an elastic constant of 2336 N/m. When she jumps onto the trampoline it sinks 81 cm. Assuming that all of the energy of the trampoline launches her into the air, how far will she rise?
*January 26, 2015*

**algebra**

[(1.9×106)÷(2.62×105)]+7.96
*January 26, 2015*

**physics**

What percentage of the takeoff velocity did the plane gain when it reached the midpoint of the runway?
*January 26, 2015*

**Math**

I can't figure out how to solve this math problem, please help. 1.4 divided by 36.96
*January 26, 2015*

**math**

Sierra spent 2/3 of her savings on clothes and 1/5 0n school supplies. She saved the rest. What fraction of her savings did she save?
*January 26, 2015*

**SS**

I see machinery, firearms, shoes, watches, and instrument
*January 26, 2015*

**SS**

What resources led to the appearance of the Industrial Revolution in New England? Can some help me answer this question it is (5 points)
*January 26, 2015*

**physics**

It is night and a wilderness camper is in distress. To signal for help, they take a flare gun into a clearing and fire a flare up from the ground at a speed of 15 m/s. a) How high does the flare make it into the sky? b) How long is the flare in the sky? c) If the surrounding ...
*January 26, 2015*

**Math**

A fireman is standing 25 m due west of the burning building. If the angle of elevation of the ladder is 51°, how long is his ladder?
*January 26, 2015*

**math**

A peanut manufacturing company pays $0.02 per square inch of label used on its cylindrical peanut containers. Each container has a radius of 1.5 inches and a height of 2.5 inches. If the label covers the lateral area of the container, how much would it cost to produce 150,000 ...
*January 26, 2015*

**Math **

Your weekly paycheck is 30 percent less than your coworker's. Your two paychecks total 695. Find the amount of each paycheck. Your coworker's is : and yours is .
*January 26, 2015*

**LA**

Is it D?? Ms.Sue?
*January 26, 2015*

**LA**

Okay Thank you
*January 26, 2015*

**LA**

Hi. Ms. Sue. Can you please check my answer? 1. In "The Sky Is Low, the Clouds Are Mean". what human behavior does the snowflake display? A)It cannot make up its mind.** B)It is mean and nasty. C)It is full of complaints. D)It has trouble getting along with others. 2...
*January 26, 2015*

**Physics**

A golfer takes three putts to get the ball into the hole. The first putt displaces the ball 3.32 m north, the second 1.63 m southeast, and the third 0.703 m southwest. What are (a) the magnitude and (b) the angle between the direction of the displacement needed to get the ball...
*January 26, 2015*

**Physics**

A golfer takes three putts to get the ball into the hole. The first putt displaces the ball 3.32 m north, the second 1.63 m southeast, and the third 0.703 m southwest. What are (a) the magnitude and (b) the angle between the direction of the displacement needed to get the ball...
*January 26, 2015*

**Math**

What don't you like about Reiny's answer?
*January 26, 2015*

**history**

Which of the following describes changes to the industry in South Carolina during the 1800s? (
*January 26, 2015*

**SS**

The Industrial Revolution led to changes as the U.S. became more economically independent. Which of these changes occurred during this time? A)Cities began to grow, because individuals moved from farms looking for education.** B)Low taxes allowed people to invest in small ...
*January 26, 2015*

**SS**

I need help! Ms.Sue can you check my answer? Which of the following help to increase the populations of northeastern cities? A) More diversity B) Successful cotton crops C) Growth of factories and trade** D) Building of the Erie Canal A boundary was set between Canada and the ...
*January 26, 2015*

**Algebra I**

Write and solve a system of equations to solve the problem. At a film festival, Film A is 4 times as long as Film B. Together, the films are 160 min long. How long is each film?
*January 26, 2015*

**physics**

In a chase scene, a movie stuntman runs horizontally off the flat roof of one building and lands on another roof 2.0m lower. If the gap between the buildings is 4.4m wide, how fast must he run to cross the gap? Express your answer to two significant figures and include the ...
*January 26, 2015*

**Calc**

Thank you for the help SJ, Steve & Reiny.
*January 25, 2015*

**Calc**

lim x->0 X*e^(cos 1/x)
*January 25, 2015*

**4th grade math**

A frog made 3 jumps. The first was 12 5/6 inches. The second jump was 8 3/6 inches. The third jump was 15 1/6 inches. What was the total distance the frog jumped?
*January 25, 2015*

**Criminal Law**

Thank you for the help!
*January 25, 2015*

**Criminal Law**

Explain West Virginia laws that prohibit conduct that would be considered predatory.
*January 25, 2015*

**Calc 1**

1. Evaluate: lim x->0 (sqrt((x+4)-2)/x 2. Show that the limit of 4x-1 as x->2 is 7.
*January 25, 2015*

**math 2nd grade**

Write a sentence using words that compares the crayons in the two boxes
*January 25, 2015*

**physics**

John and Mary are skating at an ice rink. John skates at a constant speed of 6.7 m/s, with respect to the ice surface, directly south. Mary skates at a constant speed of 11.5 m/s in a direction of 34° west of south, with respect to the ice. What are the magnitude and ...
*January 25, 2015*

**ALGEBRA**

Thank you
*January 25, 2015*

**ALGEBRA**

Please help...Since opening night, attendance at Play A has increased steadily, while attendance at Play B first rose and then fell. Equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. On what day(s) was ...
*January 25, 2015*

**Social Studies**

as its intellectual who became the leader of Harlem Renaissance Claude McKay H L Menuken W E B DuBois James Weldon Johnson
*January 25, 2015*

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