# About previous Physics post/answer from Bobpursely

151,363 results

**Bobpursely**

Bobpursely would you mind looking at my physics post. Just provide me with the formulas.

**math-bobpursely**

Sorry bobpursely, but may I know what the E stands for in your formula? What is the Surface area of a glass bead that has the diameter of 11m? Express your answer to the nearest square mm. radius= .0055m radius^2= 5.5E-3 ^ 2=30.25 E-6m 4PIr^2= about 12*30.25E-6 m

**PHYSICS~Bobpursely**

Bobpursely can I please receive help from you. My posts are down below.

**About previous Physics post/answer from Bobpursely**

So do you mean to say....Ferris wheels use motors, therefore meaning that electrical energy is present. Electrical energy from the motor is then turned into kinetic energy. Electricity, generated from a switch and wires, travel through the motor which makes a magnetic field. ...

**English1A-previous post**

I responded to my previous post. Can someone help me, I'm not sure what time it is where everyone is at. I am in California but sll the posts is 3 hours ahead of me.

**repost**

bobpursely, I posted at 709 from our previous dialogue, can you please help me again? Much appreciated!

**Last chemistry post**

Can someone please reply to my previous post about chemistry preferable DrBob since he was helping me on it, but anyone is fine.

**Physics - bobpursely**

State the number of significant figures. 1) 809 Answer : 3 2) 0.0060 Answer : 5? 3) 0.00000095 Answer : 9? 4) 5.60 Answer : 3 5) 5.743 Answer : 4 6) 0.010 Answer : 4? Physics Help - bobpursley, Sunday, September 11, 2011 at 4:59pm 2, 3, 6 are wrong: Zeroes to the left of ...

**Social studies?**

Please ignore my previous post. I prematurely hit the enter key. I've been watching this board all day, waiting for someone to answer my physics question (no one has yet. sigh.) I just have to say Ms. Sue is my hero. She consistently answers almost every student's questions, ...

**To "bad@math" (and other names)**

Please post under one name. Please do not post to demand that someone go back and answer your previous questions. A math volunteer will get to them when he/she can. Thanks.

**Physics**

Please respond to my previous post.

**To Lindz**

If you see this post, respond here for a follow up on previous questions about reactivity to double bonds.

**To TC**

Please do not post any more economics assignments until you've answered my queries about your two previous posts.

**Management accounting**

this is added to my previous question assume that the only service performed is the giving of haircuts, the unit price of which is $12 see my previous post.

**To bobpursely**

It is a T.V quiz program. Please answer

**Geometry**

A dartboard consists of five concentric circles. The radius of the smallest circle is about 1 inch. The radius of the second circle is about 3 inches longer. The radius of the third circle is about 1 inch longer than the previous circle. The radius of the fourth circle is ...

**Chemistry**

Regarding previous post: I don't understand what I'm doing. My book says the answer is .50 M Ba(NO3)2 but I'm not getting that.

**history**

what are the two towns near boston that in 1775 the first battles of the american revolution fought in? See below. =) Whatis the answer? you said see below but there's no answer. Writeacher wants you to look at the Wikipedia website that she linked in her post to your previous...

**previous post**

has anyone read my 4 previous posts? I really need someone to check my answers. Please be patient, Erin. Our advanced math teachers are not online right now, it seems. =)

**Can someone please answer my question**

Please answer my previous post I really need help!!!

**Science**

Could someone please check me previous before previous Science post, thanks

**human service instructor feed back**

Hi Jean: You did a great job of answering the first part of the question. However can you look back over the DQ and answer the rest of the questions? Be sure to be thorough in you response. Thanks. I'm glad your instructor liked your answer for the first part of the question. ...

**Art**

I changed a few things from my previous mail. Could you check grammar and punctuation, Writeacher? Thank you! 1) I suppose you received the remaining balance because my bank has already taken the money from my bank account. 2) However, I would be grateful to you if you let me ...

**chemistry**

what is the molecular formula of oxide of arsenic in its gaseous state (also I need to explain how this formula came about )?? There are two arsenic oxides. One is As2O3 and the other is As2O5. How did that come about? Please clarify. I assume you have some data; previous ...

**math,correction**

Problem #1 Simplify by combining like terms. xã(18) -3ã(8x^2) My answer: -3xã(2) Problem #2 Simplify each radical expression. (ã(3) + 5)(ã(3) - 3) My answer: -12 see my previous post, don't understand your symbol ã sorry they are radicals

**English- A Raisin in the Sun**

This is a post continued from yesterday under "English-A Raisin in the Sun". In response to GuruBlue- Is Bennie worried about Mama meeting Asagai because Asagai wants Bennie to go to Africa and Mama won't like that? (I reposted because the previous post is a few pages back and...

**English Ms. sue**

I need help figuring out the rhyme scheme to Anne bradstreets poem "to her father with some verses" I saw a previous post where you said the answer was : aabbccddeeffggaabbccddeeffgg there are only 14 lines in the poem. I think the answer is: aabbccddeeffgg Can you explain why...

**why was I banned?**

Why was I banned from my previous post, I was not able to post anything new.

**French**

Part 3: Encore des questions: Faites des questions directes avec les phraes de l'activité 10 (from previous part 2 post) 1. ----------- intéresse Paul? Answer: Qu'est-ce qu' 2. ----------- lui est arrivé? Answer: Qu'est-ce qui 3. --------- il a compris? Answer: Qu'est-ce qu...

**physics**

1. A vector has (at minimum) how many parts associated with it? 2. When adding three vectors graphically one needs to: 1. Spin each one like a spinner on a board game. 2. Do nothing because more than two vectors cannot be added graphically 3. draw all the tails at the same ...

**@nonya**

Please do not post an entire test ... with not a thought of your own. Go through your questions and post ONLY those that you have serious doubts about ... AND include what YOU THINK each answer is. Then someone here will check your thinking.

**Ms.Sue**

Sorry for asking the same question twice,I will go through it and provide a good answer.Please let me post though.Please give me the permission to post.I am the person who asked about the STI's.

**try**

I guess my question that I posted does not come up I would like to answer your question, but I am unaware of your previous post. Please repost with the question. Thanks for asking.

**Check my previous post**

thanks.

**Monitors of Board**

Is there any way that the postings could be numbered? The post below this one by TONY obviously refers to a previous posting of his 8 steps below. I know the URL has a number behind each particular post, and each post can be identified by a title and time/date, but with a ...

**trig**

it says solve for all real solutions, compute inverse functions to 4 sigfigs. cos^2x=3-5cosx Devon, what grade level are these questions from? I am having the same problems as with your 9:14 post. Please see my partial solution in the post to bobpursely at 10:54 Devon, I have ...

**Cultural Diversty**

Write about influences of race as it relates to your community. In your paper, write your first-person account of how human interactions in your community have been racialized. For the community, you can consider relations within your neighborhood, local government, service ...

**physics**

how many gram of ice at 0 c can be melted by the heat released when one gram of steam condense to water at 100 c check my answer please and you deman i am sorry by accident i post it the previous question solution Qcold=-Qhot MLf(ice)=-MlV(water) Mice = -(-0.001*2256000)/(...

**Writing**

can someone look at my previous post?

**physics**

As Newton showed, gravity is a force that acts along the line separating two bodies and causes the two bodies to be attracted to each other (i.e. it is a central force). In this problem, assume that the planetary orbits about the Sun are circular. a. Does the force of gravity ...

**Chemistry**

Calculate the pH of 7.2 × 10-8 M HCl. Report your answer to the hundredths place. Next, What fraction of the total H in this solution is from the HCl? Report your answer to the hundredths place. I apologize for the re-post, but I felt the previous one was labeled incorrectly.

**English**

1. Can I ask you to wash the dishes? 2. May I ask you to wash the dishes? 3. Might I ask you to wash the dishes? --------------------- What is the difference between #1 and #2? Do you use #3? ================================ 4. Where can I find the post office? 5. Where is the...

**Science....**

Look at my previous post.... Can anyone please answer my science question??? well what's the question? http://www.sinauer.com/cooper/4e/chapter10.html Well, did u look at my previous post??? Hey Lance!! Thanx sooo much!! I got the problem right! I owe u one! Hey Lance!! Thanx ...

**CHEMISTRY**

I still don't get it. See question in previous post

**To: Drwls**

can you please check my previous science post, thanks

**To Ramon - English**

I removed your latest post because it included too much personal information about you. Do not post the name of your school or your last name. Please see my questions about your question below.

**Physics repost please check**

Posted by Mary on Monday, November 5, 2007 at 8:21pm. Suppose that the electric field of an electromagnetic wave decreases in magnitude. Does the magnetic field increase, decrease, or remain the same? Account for your answer. For Further Reading Physics - bobpursley, Monday, ...

**science**

A new plant, growing from a single leaf, is an example of sexual reproduction. True or False? Thanks. Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in ...

**Socials**

Ms. Sue can you please take a look at my previous post.

**english**

can someone please help me with my previous post...i don't have a clue :(

**Bob pursley**

Sorry I misspelled your name in my previous post:)

**To Cheryl**

I removed your post about tooth whitening because it doesn't have anything to do with school work. Please see a doctor about your symptoms. can u help me Please click Post a New Question and explain how you'd like us to help you.

**To Carol -- science**

I've removed your post with the long, complex assignment that expects you to do research and thinking. If you have a specific question about this assignment, please post it along with your ideas about possible answers to it.

**Inductive effects**

Is there a good tutorial on inductive effects, especially as they relate to acids and bases as taught in Organic Chemistry? My book is lacking information on this. The teacher discussed this subject in class today and I think it may have to do with a previous question by Lindz...

**Algebra**

Which pattern could have been used to create the sequence? 20, –40, 80, –160, 320 Multiply the previous term by –2 Divide the previous term by 2 Subtract 60 from the previous term. Add –60 to the previous term.

**To Troyer 0269**

I deleted your last science post, as I promised I would a couple of weeks ago. You posted five questions that I'm sure you could answer by reading your text. As you know, we don't give answers, but help students with problems they don't understand. If you post what you know ...

**Bobpursley+Chemistry**

Hey Can you take a look at my previous post that you replied on.

**English**

Could someone please take a look at my previous post, thanks a lot.

**chem-follow up question to previous post**

how do you calculate the molar mass?

**Ms. Sue**

Can you evaluate my answers in my previous "English/Literature Questions" post? Thank you.

**math,correction from previous post**

can someone please correct this for me thanks. simplify: 7sqrt(7x) + 5 sqrt (7x) My work: (7+5)sqrt (7x) My answer: 12sqrt (7x) is this correct? yup so i don't have to take out the x from the radicand Nope. 7x + 5x = 12x No matter what "x" is.

**Biology (Science)**

Which of the following is not true about a hypothesis? 1) Previous knowledge can help support it. 2) It is a tentative explanation. 3) It can be proven to be false. 4) It must be testable to be useful. 5) It can be proven to be true. I know for sure that 2 and 4 is not the ...

**math**

how can you get the answer 16 using these numbers 4,3,2,1=16 you can not use any number more than one time. Help! 3-1=2 2x2=4 4x4=16 Bold face type show numbers in the problem. please help You need to post a question before we can help. Just click on the "Post a New Question" ...

**math (repost)**

Question: Can MSI (1000 sq inch) be converted into "linear feet"? Answer that was given: Yes, 1MSI = 6.94 ft In a previous post I was told to divide 1000 by 144, but won't that just leave me with 6.94 sq ft? I'm still a bit confused by this, can some one help me understand this?

**Common Sense**

Do people actually work for this website like, bobpursely, gurublue, PSY,Leo, and other? We teachers are all volunteers. We answer questions on this site because we enjoy helping students learn. And yes -- we are real human beings!

**physics**

A mass with an initial combined potential energy and kinetic energy of 10,000 joules is dropped onto a fence post to drive it into the ground. The post is driven 0.25 meters into the ground before it comes to rest with the mass sitting on top of the post. How much work was ...

**Math**

It says find the value of n. This is a fraction. 3 - +n=1 4 what does n equal??? See previous post.

**Algebra**

*correction of previous post* Find the LCD of the rational expressions in the list. m-2/m^2+2m , -8/m^2+6m+8

**to angie**

Please do not post responses to other students unless you can help them very proficiently with their specific problem or question. This is not a website for "personals" -- so please don't post any personal information about yourself or ask personal informtion of others. Thanks...

**physics**

One end of a post weighing 400 N and with height h rests on a rough horizontal surface with Ks=0.30. The upper end is held by a rope fastened to the surface and making an angle of 36.9^\circ with the post. A horizontal force F_vec is exerted on the post as shown. (Figure 1) ...

**Math**

is this the correct answer? I might post more on this exact post, so please bare with me? These are proportions 1.) 2:5 = 4:y Answer: y=2

**calculus**

So from a previous post I asked, "f(x)=(1+x) what is f'(x) when x=0?" and someone replied, "the derivative of f(x)=x+1 is f'(x)=1 so your answer would just be 1" Now my question is why!? it doesn't matter what x is? f'x when x=238423904 will also be 1? For some reason I ...

**math**

How do u graph y= -2x = 1. in baseball,the pither's mound is 6 in. more than 20 yd from homeplate.how many is this. First, Kylie, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous ...

**Physics**

Given a square of sidelength a = 4 cm. We place a charged particle at each corner, three of them carry + 2 nC of charge and one carries the same amount of negative charge. What is the magnitude of the electric field at the center of the square? I read a previous post for a ...

**Mathmatics**

what is 11-5=12- 1/3t=1/5 That solution is not correct, the 1/3 is a multiplier so it can't be subtracted. If the original was (1/3)t = 1/5 then t = (1/5)*3 t= 3/5 if the poster meant 1/(3t) = 1/5 then 3t = 5 t= 5/3 First, if you have a question, it is much better to put it in...

**@Help plzz check asap**

I've removed the entire test you posted -- without indicating your answers! Please post only those questions you have serious doubts about along with what YOU THINK the answer is for each. Then when someone comes online who has read that work, he/she may be able to help. Do ...

**READING**

I need help with one less letter than the previous word. (its in a sentence.) Please explain more about your assignment. Are you trying to make a new word from a previous word?

**bobpursely**

I am so confused on this I read the site you sent me is it genotype

**biology**

what is the definition, positives, negatives, and ethical issues of genatically modify organisims? thank you, but i prefere if you provide me with exact answers limited in one page rather than a general website Do not repeat your posts. Repeating the posts will not get you any...

**math**

whats all the prime numbers less than 200 See my response to your previous post. Thanks for asking.

**Calculus**

Find the derivative: h(x)=7x/sqrt(5-2x) Using the chain rule...I figured out my previous post.

**MATH**

how many milligrams are there in a kilogram I give up alejandra. I showed you how to count your way to the answer and you keep posting. We don't give answers but we try to help you understand so you don't need us. Please go back and count your way from milligrams to kilograms...

**English**

This paragraph serves as an introduction to the rephrase. I summarized briefly what happened before their conversation. I will include the rephrase in my next post. Thank you. 1) In letter XV of Richardson’s Pamela, Pamela recounts to her mother what happened to her as she ...

**Physics......**

A ball on a 6.5 m long string swings down and wraps around a post that is 4.0 m below the post the string is attached to. If the ball is released level with the post to which it is attached, what will be the velocity of the ball when it is at its highest point over the lower ...

**Physics**

A ball on a 6.5 m long string swings down and wraps around a post that is 4.0 m below the post the string is attached to. If the ball is released level with the post to which it is attached, what will be the velocity of the ball when it is at its highest point over the lower ...

**English**

Speech in the Virginia Convention by Patrick Henry 2a. what does henry say about the previous speakers? 2b What does he hope to accomplish by commenting on the previous speakers?

**Physics**

Can someone plz answer my 2 previous question ???

**5th grade math**

Which pattern can describe the numbers 2,4,10,28, and so on? A. For each number after first, add 4 to previous number in the list. B. For each number after first, multiply the previous number by 3 and subtract 2. C. For each number after first, add 2 or 6 to previous number. D...

**Math (bobpursely)**

Given that a*b = ab-b/a Evalute 1)-3+-4*8 is it 32-8/4=6? 2)2*(4*8) is the ans 64? it means ab minus B divided by A

**Dr.Bob - about your post to a previous question**

For that question by Josh on the second page I reviewed what you did and am confused to how you found the g excess reagent (NH3) I posted a response to what I found when I helped Josh with the problem. Could you please take a look at it and check my thinking on the problem ...

**About Posting**

Very few people have permission to post links on this board. However, you could tell the person to go to Wikipedia.com and tell the search term you used to find the information. Is it true that I'll never be able to post a link here on Jiskha? I've tried it a few times when ...

**Algebra 2 URGENT**

Solve. Square root of 3x+4=x BobPursely can you please show me the work

**Government**

As of the date of ratification,what did the U.S. Constitution establish?? John this question has already been answered for you. please recheck previous post.

**Chemistry**

question from my previous post answered by DrBob - is this because this acts as a polyprotic acid, or because the ratio in the Henderson Hasselbach for HA/A- remains the same?

**computer science**

i need help about blue j from Java.i have project about property. i have almost finish but the end i have error . if there s any one could send me post answer. many thanks

**chemistry**

how many grams of CaCl2 need to be dssolved in 100g of water to prepare a solution which freezes at -2.0 degrees? Work this problem just like the previous one EXCEPT there is another part to the formula. Delta T = i*Kf *m i is the number of particles and CaCl2 will have 3. In ...

**MATH - PLEASE HELP!**

Need help with combining like terms How do I figure this out... 11+5t^2+t+6t If anyone can help I would really appreciate it. I helped BELOW!!!LOL See the answer below which I posted as a correction to the answer provided by Margie and Dr Phil. The correct answer to this post ...

**social studies**

Please help me answer these questions, as I have no idea about it. 1) Why do naturalist movements tend to be fractured (why don't they work out...) 2) How does this affect the post-colonial administration of successor states? Please help answer, or provide some websites which ...

**Pre-Algebra [FOUND THE ANSWER]**

Earlier I posted a qustion about ordered pairs and I was asked to re-post the answer when I get it. 2x - 3y= 12 These are the two I had: (9,2) and (12,4) I found this one: (15,6) -MC

**science**

light affected by gravity in einsteins general theory of relativity Look below at yopu previous post. I tried again