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Posts by nicole

Total # Posts: 1,876

Physics
The centers of a 14 kg lead ball and a 120 g lead ball are separated by 9.0cm .What gravitational force does each exert on the other?

world geography
since the 1970 european have tired to limit

5th grade math
find the surface area of a rectangular with the measurements of 4 5 and 8

Physics
The instant before a batter hits a .14 KG baseball, the velocity of the ball is 45 meters per second west. The instant after the batter hits the ball, the ball's velocity is 35 meters per second eat. The bat and ball are in contact for 1.0 x 10 ^-2 second. How do I ...

Physics
The instant before a batter hits a .14 KG baseball, the velocity of the ball is 45 meters per second west. The instant after the batter hits the ball, the ball's velocity is 35 meters per second eat. The bat and ball are in contact for 1.0 x 10 ^-2 second. How do I ...

Chemistry
Because AgNO3 has nitrate in it, and nitrate is ALWAYS soluable, the AgNO3 dissociates 100%, which means that in the solution there are Ag+ and NO3- ions. When added to this equation, the Ag+ ions and Cl- ions will react using up some of the Cl- ions in the reactants side, ...

Algebra
Okay...now I understand. Thank you very much!!

Algebra
For which table(s) of values in Exercises 39–42 is the relationship linear? Tell how you decided. Write the equation for each linear relationship. x y 5 20 10 30 15 40 20 50 25 50 30 50 bobpursley stated "Look at y. It stays constant at the end. If it were always ...

Algebra
"Write a brief scenario that can be modeled with a linear equation. Summarize a situation modeled by a quadratic equation." Although I understand the difference between the two, I'm having a hard time creating problems that express them.

6th grade math
how much is 3pt to a cup

Volume of a rectangular prism
If a triangular prism has length 10m and volume 180 m3 what are two possible integer height and width

10th grade
Find the measure of diameter AC if BP=x and AC=5x-6

Geometry
If the edge of a cube is doubled, the volume is?... a. half as much, b. doubled, c. quadrupled, d. none of these

Geometry
Hi Ms. Sue! Although I do appreciate your help I am still having trouble with this problem because I am confused about how to find the height of the triangles. I did notice I mistakingly wrote that I was working with right triangles, they are equilateral. Again, Thank you very...

Geometry
I would greatly appreciate any help I can get with this problem. I need to find the volume of a right triangular prism. The sides of the triangles measure 2cm and the length of the prism is 10cm. I found the surface area to be 64sq cm...is this correct? And can I somehow use ...

amercian government
dramatic change in public opinion on basic issues is uncommon and is almost always a cosequence of?

accounting
Your team has been assigned the duty to diagram the audit trail for your company. In your diagram, show several transactions and how they would be tracked from the journal entry to the financial statement and back to the journal entry

Geometry
Aren't they the same?

Geometry
How do the axes of rotational symmetry of an octahedron compare to the axes of rotational symmetry of a cube?

classroom instruction 9not sure if i am right)
THIS IS GOOD! :)

SCI/275 ENVIRONMENTAL SCIENCE
What is this asking?

Geometry
Thank you!

Geometry
Show that Euler's formula holds for a right pentagonal prism.

math
Thank you!

math
How many rectangles will fit about a point when tessellating the plane? How do you know?

math
A girl has a score of 59 and wants to know how to get a mean of 69. She would like to use two more scores to get that mean. What numbers did she use? Please help!

calculus
ok then think about what you have to do first :)

calculus
is that a negative 3?

math
how did you do the decimal?

math
plzzzzz help!!!

math
67 * 56% = ?

Math
Oh yes I understand very well how important it is to be very clear when asking a question like this, but it's one of the questions on an assignment with multiple choice answers. The best that I could come up with looks like 2x2x2x2x2x5=160....(5 for the various cheeses, 2 ...

Math
We are working on permutations and combinations and the problem reads as follows: A deli offers its cheese sandwich with various combinations of mayonnaise, lettuce, tomatoes, pickles, and sprouts. 5 types of cheese are available. How many different cheese sandwiches are ...

mathematics
Angles 1 and 7 are alternate exterior angles of a transversal cutting two parallel lines. If m(angle1)=4x+10 and m(angle7)=6x+4, what are the measures of angles 1 and 7? Give a property of angles that helped you solve the problem. What's confusing me about this problem is ...

geometry
What's throwing me off a bit on this problem is the fact that angles 1 and 7 are alternate exterior angles. Is this possible with the two lines being parallel?

geometry
Angles 1 and 7 are alternate exterior angles of a transversal cutting two parallel lines. If m(Ú1)=4x+10 and m(Ú7)=6x+4, what are the measures of angles 1 and 7? Give a property of angles that helped you solve the problem.

physics
0.25 m/s^2

math
math is a hard thing for me sometimes and i need help with the question 5% OF 36 PLEASE HELP!

Math
The numbers 1-10 are placed on cards, and the cards are put in a hat. If two cards are drawn, in order, without replacement, what is the probability that a. both are composite? b. one number is even and the other is odd? c. one number is even and the other a prime?

Math
At a party, 55 handshakes took place as everyone shook hands with everyone else. How many people were at the party?

math
What are the odds against throwing either a sum of 3 or 8 in rolling a pair of regular dice?

math
What are the odds against getting a head and a tail in a single toss of two coins?

physics
There's a problem my professor assigned, but I'm not sure which equation/process I should use to solve it. Please help. Two particles having charges of 0.420nC and 15.1nC are separated by a distance of 1.50m. At what point along the line (in m from the particle with ....

math
-x +2 18 ------------- 8 9

4 grade
20

math
Give a verbal, visual, numerical, and graphic representation for the idea one-fourth.

math
How would you instruct someone to take one-fourth of a pizza if you could not use the word one-fourth?

Physics
I am reposting this since I did so incorrectly the first time. (I apologize for posting it twice the first time as well...I accidently hit refresh) Here is the problem with the proper units: You are trying to overhear a juicy conversation, but from your distance of 15.0m , it ...

physics
You are trying to overhear a juicy conversation, but from your distance of 15.0 , it sounds like only an average whisper of 35.0 . So you decide to move closer to give the conversation a sound level of 60.0 instead. How close should you come? (in cm)

physics
I didn't mean to post the question twice and I have absolutely no idea where to start. I do not need the answer necessarily, but an equation to work with would be great. Thank you.

physics
You are trying to overhear a juicy conversation, but from your distance of 15.0 , it sounds like only an average whisper of 35.0 . So you decide to move closer to give the conversation a sound level of 60.0 instead. How close should you come? (in cm)

7th grade math
I am in 6th grade and i am haveing trouble with statistics and how to memorize them!!! How can i do this???? Is there a special way???

3rd grade science
The moon rotates in a circle around Earth so sometimes it is between Earth and mars and sometimes it is not. You can put the moon anywhere around the Earth and your model will come out perfect :)

3rd grade science
Hi i would like to tell you that the moon revolves around the earth so somewere close to the earth or around it would be fine!!!!

physics
For real images in converging lenses, I know that if the object distance increases, then the image distance will decrease. However, I need to explain WHY and I don't know? Pleaes help.

grade 11 physics
what is the index of refraction of a medium in which the speed of this radiation is 2.54X10^8 m/s? I don't even know where to start...

geometry
What is the lateral area of a cylinder? How do you find it? Is there a formula?

geometry
How do you find the lateral area and perimeter of a pentagonal pyramid? ex: The slant height of a regular pentagonal pyramid is 6 cm, and the length of each side of the base is 3 cm. Find the lateral area.

Geometry
How do you go about finding the lateral area of a trianglar prism? Ex: The base of a triangular prism is an equilateral triangle with a perimeter of 42 cm. If the height of the prism is 10 cm, find the lateral area. Thanks for the help in advance

math
i can type 19 words in 38 seconds. how many i can type in 60 seconds.

physics
a. speed=distance/time= 2PI*radius/time What does 2PI mean?

physics
The combined mass of a race car and its driver is 600. kilograms. Traveling at a constant speed, the car completes one lap around a circular track of radius 160 meters in 36 seconds. A) Based on the given information, calculate the speed of the car. B) Calculate the magnitude ...

math 157
Is 3x^2=5 a linear, quadratic or exponential function? and how

math
A small college has 1250 students. There are 30 more women than men. How many women attend the college?

7th grade
I'm in 8th grade and I can't even figure that out Goshh.(:

Math for Educators
Show how to slice a cylindrical piece of cheese into eight congruent pieces with three slices.

math
Show how to slice a cylindrical piece of cheese into eight congruent pieces with three slices.

history
what sort of armor did the Black Prince wear? what was it made out of? how heavy was it and how functional was it? I've been looking but all i can find it that it was black, heavy and not very functional. thanks!

social study
how to make tepee which is native American house?

Science
He came out wet

physics
How far does a 1.58-kg stone with the kinetic energy of 3.11 J go in 1.86 s if it is moving in a straight line?

Physics
Two joules of energy are required to extend a spring by .25 m. What is the spring constant?

Physics
A 770N woman sitting on a frictionless surface throw a 2.6 kg book at a speed of 35 m/s. What is her recoil speed in m/s?

Physics
On a frozen pond, a person kicks a 10.0 kg sled, giving it an initial speed of 12.2 m/s. How far does the sled move if the coefficient of kinetic friction between the sled and the ice is .10?

Physics
A 21-kg child swings on a playground swing 3.4 m long. What is the period of her motion? If her brother, who weighs twice as much as she does,rides on the swing instead, what is the period of the motion?

us history
In what ways did democracy create a new political culture? How did democracy impact social change?

Spelling
brother mother fly

Spelling
Nail Hammer screw

Math
The game of dots is played by rolling a fair die and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?

Foundations in business
Analyze the problems, issues, and tasks employees will have to solve to best provide such a service to customers

physics
A boy reaches out of a window and tosses a ball straight up with a speed of 15 m/s. The ball is 20 m above the ground as he releases it. Use energy to find the following.

College Physics
A car starts from rest on a curve with a radius of 150 and accelerates at 1.30 . How many revolutions will the car have gone through when the magnitude of its total acceleration is 3.30 ?

pre-algebra
42 is 60% of what number? and what percent of 400 is 20?

pre-algebra
what percent of 400 is 20?

physics
Calculate the index of refraction of a diamond if the speed of light in a diamond is 1.24x10 to the power of 8 m/s. Please break it down and show all the steps. :) thank you

pre-algebra
solve for X when 2/3 X = 2 2/9

math
Barbara knows that she will need to buy a new car in 4 years. The car will cost $15,000 by then. How much should she invest now at 10%, compounded quarterly, so that she will have enough to buy a new car? Round to the nearest cent.

Math
45

Math
How do you write 2.78 in expanded form

3rd grade
His answer is reasonable because 75-30=45 and 45+30=75.

Social Studies
During the time of Troy and the Trojan war was it common for the king and his wife to be buried near each other? Website refs would be great also... thanks:)

Social Studies
What is priam's treasure and if you have any websites about it please tlel me thanks:)

Organic Chemistry
How is the rate of adjusted when using a sand bath as a heat source?

physics
23.3

chemistry help!
Ca Co3(s) 2HCl (aq) Ca Cl2(aq)+H2o(e)+Co2(g)

9th grade
what do you need help with?

math
... and then since the 's' isn't a like term, it stays the way it is.

math
exactly =)

math
you would combine the r's just by adding them together, because they are the same variable. The first r in the equation doesn't have a number with it, right? So since it isn't attatched to a number, pretend that there is an invisible 1 in front of it. So when you ...

math
OH sorry typo! 3 +1 and you'd have 4r! sorry!

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