1,684 results, page 17
1. ## Physics Urgent!!!!!

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in

asked by Abi on April 30, 2011
2. ## Physics

A cross country team race is about to begin and team Delta decides to use their one-dimensional kinematics knowledge that they learned from their first year physics course. Each team consists of two people and one horse. The clock is started when the team

asked by victor on September 13, 2011
3. ## solving trigonometrical equations

arctan(tan(2pi/3) thanks. arctan(tan(2pi/3) = -pi/3 since arctan and tan are inverse operations, the solution would be 2pi/3 the number of solutions to arctan(x) is infinite, look at its graph. generally, unless a general solution is asked for, or a domain

asked by Jen on April 10, 2007
4. ## spanish

please revise my spanish part, make corrections, and add accent where needed: In the morning I wake up at 8:30 a.m. The first thing I do is brush my teeth and comb my hair. Then i eat breakfast. By 9:00 a.m., I start my schooling (home). The first thing I

asked by y912f on May 5, 2009
5. ## Physics hard... can't get it right

A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L and is filled to a pressure of 200 atm at 273 K. The maximum pressure the cylinder can hold is 1000 atm. The molar mass of

asked by richard on May 7, 2010
6. ## physics

I am studying for a physics exam and this is the pretest. There are some that I don't understand. If someone could help me get to the answer (show all the work so I can look it all over) that would be AMAZING! Thank you very much! 2. A roller coaster,

asked by Karrine on October 21, 2012
7. ## Physics - drwls

Posted by winterWX on Monday, March 19, 2007 at 11:51pm. A 2600 kg truck traveling north at 38 km/hr turns east and accelerates to 55 km/hr. What is the change in the truck's kinetic energy? What is the magnitude of the change in the linear momentum of the

asked by winterWX on March 22, 2007
8. ## physics

I need help solving these problems. I tried but my teacher did not teach it to us so it is very difficult for me. Thanks. "Projectiles launched at an angle" 1. A golfer can hit a golf ball a horizontal distance of over 300 m on a good drive. What maximum

asked by anonymous on October 25, 2006
9. ## Maybe you know this one..

Heyy, I posted this before but it kinda got pushed down and ignored, and I was hoping maybe DrBob might have an idea since no one else did! okay I have this question about chemistry and its driving me nuts. It feels like I am so close but am just missing

asked by Tracy on February 3, 2007
10. ## Physics - KE

In Figure 11-32 (which shows a ball at the top of an incline, at the bottom of the incline a loop begins with radius R and Q a point on the loop lined up with the center of the loop), a solid brass ball of mass m and radius r will roll without slipping

asked by COFFEE on March 27, 2007
11. ## english

The essay has to be 350 words What I learned in Home School Home school is easer than public school. I am able to learn all the same subject at home as I did in public school. I am also able to learn other things that you are not able to do in public

asked by greg on February 26, 2009
12. ## my thesis on govt

The “Articles of Confederation,” created a government so weak that it wasn’t able to govern the nation effectively leading to serious national problems among the states leaving the Constitution to fix the chaos the Articles had caused and attempting

asked by Anonymous on August 12, 2006
13. ## Trig

I don't know the physics behind Snell's Law, but I can do the math Snell's Law says sin(angle of incidence)/sin(angle of reflection) = refractive index since you know the two angles... sin45/sin27 = refractive index =1.5575365 so for an angle of refection

asked by Reiny on April 19, 2007
14. ## English

Here is the second part of the school description I need to translate. Some words are unclear and the sentences are too wordy. I need your help to improve them. 1) third branch includes the study of two foreign languages: English and French and addresses

asked by Henry2 on February 7, 2012
15. ## Math, Geometry and Physics

An enemy ship is on the east side of a mountainous island. The enemy ship can maneuver to within 2500 meters of the 1800 meter high mountain peak and can shoot projectiles with an initial speed of 250m/sec. If western shoreline is horizontally 300 meters

asked by Bob on January 16, 2007
16. ## Re: Physics (check)

Posted by COFFEE on Friday, March 30, 2007 at 4:16am. A sanding disk with rotational inertia 1.1 x 10^-3 kg*m^2 is attached to an electric drill whose motor delivers a torque of 6 Nm about the central axis of the disk. What are the following values about

asked by COFFEE on March 31, 2007
17. ## Physics

A physics student of mass mm = 100 kg gets a summer job painting houses. On his first project, he builds a platform using large pine board with a mass of mb = 60 kg The board has an overall length of L = 8.5 meters and set on two 1 meter tall saw horses so

asked by Jacob on April 9, 2010

I'm confused and am hoping someone could help me understand energy can neither be created nor destroyed... great... so in physics classes we can set up problems and stuff were KEo + PEo = KE + PE Energy intial equals energy final sense energy is conserved

asked by Physics on October 20, 2009

I need help for a physics error analysis assignment and I have no background understanding whatsoever of statistics since I've never taken it and it all seems so foreign to me without any teaching. Can someone please help me with these questions? 1) One

asked by Sam on October 20, 2008
20. ## psych

Identify each of the following consequences either positive reinforcement (PR), negative reinforcement (NR), negative punishment (NP) or positive punishment (PUN). NP 1. A teacher meeting with a parent makes that parent feel less powerful by having her sit

asked by SAM on January 28, 2017
21. ## sat essay

Is it necessary for us to find new solutions to problems? Many people may argue that we don¡¯t need to since we are already able to solve the problems. As far as I am concerned, we should always try to find new solutions to problems. New solutions enable

asked by Mercedes on December 2, 2009
22. ## Math

Which of the following situations corresponds to the equation below? 1/3x + 8 = 18 2/3 Keneda is packing some suitcases to take on a cruise. The cruise line allows each guest to bring up to three pieces of luggage with a limit on total weight. So far, she

asked by Wendy on November 9, 2015
23. ## Physics Urgent!!!!!

Mars orbits the Sun at a mean distance of 228 million km, in a period of 687 days. The Earth orbits at a mean distance of 149.6 million km in a period of 365.26 days. All answers should be in the range (0, 2pi) a) Suppose Earth and Mars are positioned such

asked by Eduardo on April 8, 2011
24. ## spanish

help me translate please!! i tried it myself but it was a mess! :( My name is Isabella and I am 14 years old. I live with my parents and two brothers in the outskirts of Newport. My school is a few miles away from where I live, I go to school by coach but

asked by Ray on March 12, 2011
25. ## Physics - Grade 12

I've been doing extra questions for physics, but these four are still giving me trouble. Please help me solve them, including Free Body Diagrams if possible. 1. If a curve with a radius of 60m is properly banked for a car traveling at 60km/hr, what must

asked by Joe Seppe on April 21, 2008

Before posting, please understand a few things. 1) If we see other tutors replied to your message, we might skip it to go to others at first. This may be a problem, which I will discuss in a minute. If you do not ask a question, you will not get an answer.

asked by MattsRiceBowl on December 18, 2010
27. ## physics - Damon

PLEASE SEE ADDITIONAL QUESTION AT BOTTOM. A pendulum was set up and measurements were made to enable the mechanical energy to be calculated at the start position S and the lowest point of the pendulums swing L. The mass of the pendulum bob was determined

asked by Sarah on January 30, 2010
28. ## chemistry

I'm sorry, but this is a re-post. I couldn't find the original post;-( so, does anyone have any suggestions for helping a student make a passing grade in college chemistry? She took it twice and didn't pass. Any suggestions would be appreciated. I thought

asked by jules on August 2, 2007
29. ## Physics

Thank you so much bobpursley for all your help. I actually think I'm beginning to understand, physics involves a lot of what I've learned so far, Newton's laws, mass, acceleration, etc... I just have to make connections. “A Honda Civic and Lincoln Town

asked by Hannah on December 4, 2009
30. ## Physics

Thank you so much bobpursley for all your help. I actually think I'm beginning to understand, physics involves a lot of what I've learned so far, Newton's laws, mass, acceleration, etc... I just have to make connections. “A Honda Civic and Lincoln Town

asked by Hannah on December 4, 2009
31. ## Physics

Thank you so much bobpursley for all your help. I actually think I'm beginning to understand, physics involves a lot of what I've learned so far, Newton's laws, mass, acceleration, etc... I just have to make connections. “A Honda Civic and Lincoln Town

asked by Hannah on December 4, 2009
32. ## Physics

I have been given this question and with very little knowledge of physics and a book and flex studies that I am not finding very explanitory. I am not sure I am on the correct path as the vlaues I have seem very large. I would appreciate any

asked by Rachel on April 8, 2011
33. ## Math Puzzler For Ken and BobPursley

Below is the original question and emailed response from my friend, Dr Ford, a theoretical physicist at Tufts University in Boston. Question: We have a normal watch. The big hand is 4cm long and the little hand is 3cm long. What's the distance between the

asked by Lance on November 19, 2006
34. ## Physics

During the semi-finals of the U. S. Open 2007 Grand Slam Tennis, Venus Williams was in the second set of her match against Justine Henin when her serve was clocked (by a radar gun) at 77 miles per hour. The ball left her racquet horizontally at a height of

asked by Vanessa on October 2, 2007
35. ## physics in a way

If you break a raw egg, why can't you put it back together? using relations to entropy and the 2nd law of termodynamics I am not certain of any physical laws that prohibit it. The 2nd law will require that energy be added in order to make up for the

asked by Ghazi on November 14, 2006
36. ## Math

1) If you have an inhomogeneous, linear equation like f''(x) + f'(x) + f = x you can find the general solution by finding a particular solution (with no constants of integration)to this equation and adding it to the general solution to the homogeneous

asked by Sonya on September 19, 2009
37. ## General Physics

Clarification: this is calculus-based physics, so the methodology is not restricted to trigonometry only. I have two questions, so hopefully I can divide them up nice and evenly. Also, if you know where I should copy and paste proper vector notation from,

asked by Justin on June 23, 2016
38. ## sat essay

assignment:should people always prefer new things, ideas, or values to those of the past? Should people always prefer new thing to the old? Many people argue that we should not accept the new easily and should sick to the old. As far as I am concerned, we

asked by Mercedes on November 21, 2009
39. ## Physics

An athlete starts at point A and runs at a constant speed of 5.40 m/s around a round track 250 m in diameter. Find the x component of this runner's average velocity between points A and B. (answer is 3.44 m/s) Find the y component of this runner's average

asked by Josh on September 14, 2006
40. ## Re: Physics - drwls #2

Posted by winterWX on Monday, March 19, 2007 at 11:54pm. A small block of mass m = 4.0 kg can slide along the frictionless loop-the-loop. The block is released from rest at point P, at height h = 23R above the bottom of the loop (R is the radius of the

asked by winterWX on March 22, 2007
41. ## English

I need some help diagraming the sentence: How can an art decay? Thanks, Michelle art | can decay ________________ \ \ \an \ How \ \ Please note in the above diagram that "How" modifies "can decay." i need help distinguishing verbs from verbals (cont.) i

asked by Michelle on June 15, 2005
42. ## English

Need help with some questions! A silent killer is spreading poison across the earth. Rain, polluted by the grass given off by factories and motor vehicles, is becoming highly acidic. This "acid rain" is slowly destroying our environment. Acid rain has

asked by hrn on November 20, 2017
43. ## Physics

2018-West High School-Trimester 3 Home Announcements Assignments Discussions Grades1 People Pages Files Syllabus Quizzes Modules Class Notebook Google Drive Office 365 Discovery Education Collaborations Flipgrid Physics Projectile Motion Quiz Started: Mar

asked by Zach on March 9, 2018
44. ## physics-mechanics-collisions,momentum, impulse

You are at the controls of a particle accelerator, sending a beam of 2.40×107 protons (mass ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unknown

asked by HANNE on October 28, 2012
45. ## physics

I have a couple physics questions I need help with please! If you could show me step-by-step directions, I'd really appreciate it! A boat with a horizontal tow rope pulls a water skier. She skis off to the side, so the rope makes an angle of 15.0 degrees

asked by physicsclass on April 16, 2011
46. ## AP Physics

I need someone to review the following questions for my summer assignment and tell me if my answers are right or wrong. Please do it carefully, and the problems I found to be the most trickiest were #2 and #5. (This is is AP physics) #1 In a pickup

asked by scrupulous on August 27, 2013
47. ## physics (for bobpursley, or anyone)

Hey bob, its Mike and Jake. We wanted to start over on a new foot with you. We got assignment worth over 300pts, so far we getting 80% of the questions right, which is pretty good. We are stuck on some questions. We will tell you the questions and tell you

asked by mike on May 10, 2007
48. ## Excel VBA

(I have no idea what to do I've asked our professor for help with this numerous times he refuses please help, I know how to make input boxes and a command button but that is it) (1) When an object is thrown into the air it exhibits what is called

asked by Ebony on October 9, 2011
49. ## English

I am having trouble writing a topical outline and expanding it to a sentence for this paper: Marie Curie is best known as the discoverer of the radioactive elements polonium and radium, and is the first person to earn the honor of two Nobel prizes. Her

asked by Erin on May 4, 2009
50. ## English

1.the subject of the sentence is first person, then the verb must be in what form? third person second person fourth person first person Question 2 Verbs indicate what? location punctuation history time Question 3 Verbs may also indicate what? use date

asked by christopher on April 20, 2010
51. ## Math: Direct Variation

I really don't get direct variation and I took a test on it and bombed it but now I can correct it so if anyone can just explain it to me I'd be really grateful. :) Generally, direct variation means that as one of the variables assumes increasing positive

asked by Somebody on September 21, 2006
52. ## English

I don't understand E.L. Doctorow's essay "Why We Are Infidels". Please help me understand it, because I have to compare and contrast this essay with Salman Rushdie's "Imagine There's No Heaven." Thanks for the help!

asked by Anonymous on July 5, 2007
53. ## is it possible to read too much

ive been reading a ton of books, and now my speech is far more sophisticated than any of my friends. im only 14 years old, and the fact that i use some advanced vocab turns them off. so basically is it possible to read too much? i fear if i keep reading

asked by tim on July 28, 2005
54. ## math

2. How is the graph of y = –2x² – 5 different from the graph of y = –2x²? (1 point) It is shifted 5 units up. It is shifted 5 units down. It is shifted 5 units left. It is shifted 5 units right. 3. A model rocket is launched from a roof into a

asked by Anonymous on March 12, 2014
55. ## World History

1. The purpose of American and European imperialism in the Pacific was mainly to gain. A. markets fro manufactured products B. coaling stations and naval bases C. sources of raw materials D. places for surplus population I said C. 2. The development of

asked by Eri on May 17, 2013
56. ## Physics

1. What is the weight of a 24kg mass on Mars if its surface gravitaional field = 3.5N/KG? a) 235.2 N b) 84 N c) 24 kg d) 6.86 kg 2. A space shuttle is placed in a circular orbit around the Earth. It then thrusts its engine and moves to a new orbit, as

asked by Alfred on August 31, 2009
57. ## Science

1. The south pole of a magnet is held 2 inches from the north pole of a second magnet, and the force between them is measured. If the magnets are moved to 4 inches apart, the force will __________. A. not change B. be doubled C. be halved D. be quartered

asked by guitarpick03 on March 27, 2018
58. ## Math

Please help! I'm behind and need help. Only need help with these questions. Unit 4, Lesson 10 Math test (Quadratic Functions and Equations Unit Test). Thank you! 2. How is the graph of y equals -8x^2 - 2. different from the graph of y equals negative 8x

59. ## English 1

Can someone please check these. I answered what I thought was right; therefore, I did not know three of them which are 16, 17, and 19. 6. Compare and contrast the poem “Mexicans Begin Jogging” and the story “Delfino II: Diez in the Desert.” a. Both

asked by Blair on November 24, 2015
60. ## Physics

I'm sorry for the repost I just cant seem to find the answer for this. I did this in A1 and got it all wrong and was given the answer sheet and my teacher told me to look at that which is below, but I didnt understand and shes busy. I understand

asked by A level Student on September 24, 2018

1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China. **?? b. The Grand Canal in China is a man-made waterway, still used, that is the oldest

asked by Etta on March 14, 2016

1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China. b. The Grand Canal in China is a man-made waterway, still used, that is the oldest in

asked by Etta on March 14, 2016
63. ## english

can someone proofread this for me and make comments.. thanks Compare and Contrast / A College Education Patrick Allitt maintains that Undergraduates should be able to Specialize and that liberal arts are a matter of choice for those undecided, but that

asked by jj on March 19, 2008
64. ## help ms sue lang arts

For Questions 1–6, read the play excerpt below and answer the questions that follow. Jaws of the Water ACT TWO At rise we see DAD, TINA, and MARK rushing in and out of the living room. Each enters carrying important items—such as sleeping bags, rain

asked by josh on March 17, 2014
65. ## Language arts help!!

1–6, read the play excerpt below and answer the questions that follow. Jaws of the Water ACT TWO At rise we see DAD, TINA, and MARK rushing in and out of the living room. Each enters carrying important items—such as sleeping bags, rain gear, and

asked by josh on March 21, 2014
66. ## physics kinematics

Physics - Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.

asked by Diyan on March 8, 2011
67. ## physics kinematics

Physics - Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.

asked by Diyan on March 8, 2011
68. ## physics

Physics - Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.

asked by Diyan on March 8, 2011
69. ## physics

Physics - Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.

asked by pbhakta on March 8, 2011
70. ## physics kinematics

Physics - Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.

asked by Diyan on March 8, 2011
71. ## physics

Physics - Unit V Challenge Problem No matter how bad your day is going, here's proof that things could be A LOT worse. This is a bricklayer's accident report that was printed in the newsletter of the English equivalent of the Workers' Compensation Board.

asked by Diyan on March 8, 2011
72. ## child development

• Compose a 1,400- to 1,700-word paper analyzing the information processing theory. o Identify the components of the information processing theory described in the text. o Define the components and their functions. o Summarize the interrelationship among

asked by scooby on December 6, 2009
73. ## physics

( 1.) A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is not true?< (A) The passenger is in motion relative to the passer-by (B) The passer-by is stationery

asked by lawrence on October 12, 2011
74. ## computers

TMA1PHY111 ( 1.) A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is not true?< (A) The passenger is in motion relative to the passer-by (B) The passer-by is

asked by lawrence on October 12, 2011
75. ## phy

A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the

asked by christ on January 28, 2013
76. ## physics

passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the

asked by nandeve on February 10, 2014
77. ## physic

1 A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the

asked by mike on April 23, 2012
78. ## physics

1 A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the

asked by nandeve on February 12, 2014
79. ## Englisch

Can somebody help me to write a summary? The article "Towards a greener Economy?, written in 2009 by friedman, deals about the economic system in unsustainable. The satirical newspaper decribe the americans are wasteful. Than i don't know how can i write

asked by Clara on September 20, 2011
80. ## Tidal Heights/Barometric Pressure

What barometric pressure are tidal height predictions based on? Tidal height has nothing to do with barometric pressure. Barometric pressure is a reading that is measured. Now if you are wondering what the "standard" pressure is, it is the average

asked by Mike on August 18, 2006

My Professor gave us 10 Chapters of Physics homework to do in a week! While I have gotten most of it done, there are a few questions I was unable to find answers to. Is there any way you can help me out a little bit? When an electron in an atom makes a

asked by Brandon on November 24, 2008
82. ## writing

Edit mMath Autobiography Theresa V. Monteiro MAT 095 11:00 AM – 12:15 PM My name is Theresa and I am from Norwalk Connecticut. I’ve been living here for a year now. I moved to New London Connecticut to start my life. I’ve taken care of all my

asked by Theresa on January 28, 2013
83. ## English

im an only child and parents are too busy to help so, i need to interview someone that went to school 20 years ago and i was wondering if anyone would like to help me. Theses are my 7 questions because i already have 3 answered: 1.How was school like back

asked by ron on May 6, 2007
84. ## Math essay

Can you please proofread my essay? My teacher is grading on accuracy, quality, correct spelling and grammar. The History of Mathematics As of today, there are plenty of new developments in the area of Mathematics. In at least some Mathematics courses, it

asked by Soly on November 27, 2007