1. Physics - Frequency

    This is in reply to a previous post, I'm not really sure whether replies to posts that are several days old are viewed by anyone, so I'm reposting just in case. In reply to bobpursley's post, I just want to ask, how would you know how long it takes for the
  2. Physics

    posted this question this morning but I'm not sure of the response Damon provided. I did it once but then I updated it later in this at the bottom- please check booth of my answers. If you were in a rotor style ride and the riders accelerate until the
  3. Repost repost physics

    Posted by Meredith Mcneeds Help! on Monday, November 19, 2007 at 8:08pm. Hey, ok so I am supposed to be helping my cousin this with this physics problem, and this is the only one that has ever stumped me! Neutral metal spheres A and B each of mass 0.2 kg
  4. 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
  5. science - pangaea project

    I need help with science pangaea project ideas? my teacher wants a great project, and i really need the grade.? my teacher is expecting an AMAZING project from me, because apparently i'm her best student. anyways, i was thinking that i could show the
  6. language help !

    Albert Einstein, a world-famous mathematician was born in Bavaria in 1879. He acquired Swiss nationality in 1901 and he began working at the Swiss patent office the next year. Einstein was however also publishing papers in physics. He became famous for his
  7. As physics

    (As physics working out please) Which physical quantity has the same base units as energy? SHOW ALL WORKING OUT! A:Moment B:Momentum C:force D:pressure
  8. Physics

    When catching a ball, your cricket coach advises you to move your hands backwards with the ball. Explain the physics behind this 'follow through' technique.
  9. need diagram of an ear

    Does anybody know where I can find a very simple diagram of an ear (outer, middle, and inner)? Our physics teacher introduced the "ear" to us just today and we're going to be tested on it tomorrow.
  10. statistics

    a student gets the following grades in his 5 subjects: 87 for calculu; 82 for Physics; 79 for Chemistry; 81 for english; 83 for history. Compute the weighted mean if the weights for the 5 subjects are 5,4,4,3, and 3, repectively
  11. physics

    A physics professor lifts her 8.2-kg briefcase at constant speed with an upward force. Find the magnitude of her force. answer in newtons.
  12. physics 2B

    physics 2B---- A toy balloon is filled with helium gas ( He}) at 1atm} and 30 degrees Celcius. If the volume of the balloon is 0.025 m^3, how many atoms does it contain?
  13. physics

    A person throws a physics book off of a cliff at an initial speed of 3 m/s at an angle of 20 degrees. The book is in the air for a total of 2.5 seconds.
  14. Physics

    Hi, I have a question for physics An object with mass m = 20 kg is released from a height h = 60 m above the ground. After 2 seconds, the object's quantity of energy Thanks for your help mvh Oddbjørn
  15. physics

    A physics book of unknown mass is dropped 5.00 m. What speed does the book have just before it hits the ground? Assume that air resistance is negligible
  16. phySICS

    PHYSICS when a positive charge moves under the influence of an electric field's electrostatice force, what happens to the electrical potential energy of that charge?
  17. Physics

    would it be possible to view your body from head-to-toe, while standing in front of a plane mirror that is only as tall as you? this is in the chapter mirror on my physics books
  18. Physics

    Hi. Can someone please help me on how to do the propagation of error in physics on variable C, d and A of the following formula: k = Cd/åA , with error on C, d, A
  19. Sorsogon state colleges

    Physics. A ball od thrown up and returns to the ground after exactly 6 second How far up did the ball go?
  20. science- physics helppppp ! i badly need one T___T

    how is physics related to food technology and everything related to foods ?
  21. Physics/chem

    Trying to beat the heat of summer, a physics grad student went to the local toy store and purchased a child's plastic swimming pool. Upon returning home, he filled it with 154 liters of water at 25°C. Realizing that the water would probably not be cool
  22. Math: related rates

    A street light is at the top of a 26 ft pole. A 5 ft tall girl walks along a straight path away from the pole with a speed of 7 ft/sec. At what rate is the tip of her shadow moving away from the light (ie. away from the top of the pole) when the girl is 23
  23. Calrary science secondly school taraku

    Physics.p: a stone whirled at the end of a rope 30cm long makes 10 complete in 2seconds find the angular velocity the lnear speed the distance covered in 5seconds
  24. Science

    I would recommend to check out a website called physmatixsolve They helped me with a tough question i got in my Physics homework, classical mechanics. The amazing thing is that they really sent me the solution in less than 24 hours, which is pretty neat.
  25. Nuclear Physics

    I'm interested in studying Nuclear Physics at the university and would llike to know about the career opportunities avilable for a Bachelor's degree holder.I tried googling and found several but would like to get advising from a tutor who have experience
  26. language arts

    Please check my answers! Vibrant is MOST LIKELY to be used to describe a. an accident b. a color c. or an idea (I think it's b but I'm not sure) If on June 1, a father gives his son an allowance increase that is two months retroactive, then the son will a.
  27. Physics

    Please help me with the following problem: Joe is on a cross-country trip from New York to Los Angeles. He drives for 45.0 min at 70.0 km/h, 10.0 min at 95 km/h, and 30.0 min at 55.0 km/h, and he spends 20.0 min eating lunch and buying gas. What is the
  28. Physics

    A 
serving 
of 
cereal 
has 
800
cal 
(1
cal
=
.239
J). 
How
 far
can 
you 
walk
 with
 this 
energy?
 Is 
the 
elapsed 
time
important?
 Why
 is t
his 
calculation
 irrelevant to 
physics?

  29. Self assembly

    Can self assembly of macromolecules occur in vivo? I think it does occur. DNA, RNA, polypeptides, etc. http://www.worldscibooks.com/physics/5347.html
  30. physics

    when a 100 m runner reached the finish line , the runner stopped suddenly and fell on the ground . explain the situation using the appropriate physics concep
  31. statistics

    13) You are told that the mean height of trees around the Physics building is 8 feet tall, with a standard deviation of 1.5 feet. Which is the most appropriate statement you can make, based on this information?
  32. Physics Urgent!!!!! I really need help with this

    Sorry to repost this, again, but I still don't understand. 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
  33. Physics (please help!!!!)

    Sorry to repost this, again, but I still don't understand. 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
  34. Physics

    A small circular object with mass m and radius r has a moment of inertia given by I = cmr2. The object rolls without slipping along the track shown in the figure. The track ends with a ramp of height R = 3.0 m that launches the object vertically. The
  35. Written Communication

    • Choose a topic from your personal knowledge and experience. Remember that you must utilize your first-hand experience to prove your authority to write on a topic. Purely generalized and/or factual information is not acceptable. • Capture your
  36. Written Communication

    • Choose a topic from your personal knowledge and experience. Remember that you must utilize your first-hand experience to prove your authority to write on a topic. Purely generalized and/or factual information is not acceptable. • Capture your
  37. Physics,Question ,Solved but about Units?

    These are “plug-in-the-number” tasks to familiarize you with the main formulas that link the physics concepts of this chapter. They are one-step substitutions, much less challenging than the Think and Solve problems that follow. Average speed ! total
  38. Algebra

    70 students are studying mathematics,physics & chemistry.40 students study mathematics,35 study physics and 30 study chemistry.15 students are studying all the three subjects.How many students are studying exactly two of the subjects
  39. Economics

    Could you give me two reasons why it is a good idea for the BBC to be funded through advertising. I have already got that it generates a higher amount of revenue. Also could you give me two reasons why it is not a good idea for the BBC to be funded through
  40. Economics

    Could you give me two reasons why it is a good idea for the BBC to be funded through advertising. I have already got that it generates a higher amount of revenue. Also could you give me two reasons why it is not a good idea for the BBC to be funded through
  41. Physics

    A mass (m) rest on a frictionless slope within our physics lab room. The angle of the ramp with respect to the floor is 35 degrees. What is the magnitude of the mass's acceleration?
  42. physics

    Place a coin on top of a sheet of paper on a desk or table. Pull the paper horizontally with a quick snap. What concept of physics does this illustrate?
  43. Physics

    A mass (m) rest on a frictionless slope within our physics lab room. The angle of the ramp with respect to the floor is 35 degrees. What is the magnitude of the mass's acceleration?
  44. Physics

    Physics Help... Applying Newtons Laws Grade 11? On the surface of the earth a geological hammer has a mass of 1500g. Determine its mass and weight on Mars where g=3.6 m/s^2.
  45. economics

    Thursday, December 4, 2008 at 10:30pm by kim. PHYSICS 1. A 4.0 N force acts for 3 ... The following is a list of figures for a given year in billions of dollars. Using this data, compute: (a) GDP; (b) NDP; (c) NI; (d) PI; (e) DI; (f) Net exports
  46. science project

    well im doing a science project and theyare asking me to putbranches and make up a question for each but i don't know a good brach well actually there are different branches like botonamy-plants chemistry food physics medicine and many many more
  47. science/chemistry

    I have to write a persuasive paragraph on the following question: What should be the job of a scientist?Pick one to argue: a) Create more synthetic substances. Fore example: synthetic elements, genetically modified food b) Study substances that naturally
  48. Math

    Hudson is already 40 miles away from home on his drive back to college. He is driving 65 mi/hr. Write an equation that models the total distance d travelled after hours h. What is the graph of the equation. When Phil started his new job, he owed the
  49. English- thesis statements

    I am writing a synthesis essay over multiple different sources. I have started writing my essay about how unhealthy relationships are often hard to spot and about how we often tell ourselves everything is fine and make up a vision in our heads of what we
  50. History

    Word Bank : Popular Sovereignty, Republicanism, Federalism, Separation of Powers, Checks and Balances, Limited gov, Individual Rights 1. aidivion of power between the states and federal gov some power is reintaed for the federal gov some for the states and
  51. Physics. Please help!!

    Distruive interference? Unless you put C in the line between A and B, this the asnwer is at infinity. Now on the line between A and B, the distance from A to C has to be an odd multiple of halfwavelength greater than C to B. Now, the distance between the
  52. Physics Urgent!!!!! I really need help with this

    Sorry to repost this, again, but I still don't understand. 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
  53. physics

    physics:the notes at 110Hz has two strings at this pitch. if 1 slips from its normal tension of 600N to 540N what beat frequency would be heard when the two strings are stuck simultaneously?
  54. Physics

    I am new at physics and having a very hard time. Could you please help. Thank you. Show that the water pressure at the bottom of the 50-m-high water tower in Figure 5.3 is 490,000 N/m2, or is approximately 500 kPa.
  55. physics 30

    A magnet dropped through a vertical solenoid will fall at a rate that is slower than gravity, and will induce an electric current within the solenoid. which physics principle explain these phenomena ?
  56. PHYSICS

    Give at least one example of an application of each branch: motion properties of materials sound light electricity magnetism properties of atoms nuclear physics Dont understand this.
  57. Physics

    This is a pretty simple physics problem, but I do not know how to go about it. How do I: Show that the time required for a projectile to reach its highest point is equal to the time for it to return to its original height?
  58. Physics

    I am totally new to physics. We are working on summation of moments and I just am not grasping this. I know the formular is M=dF, but his does not help me. I get confused about the middle of settig of euation. I am never sure which distance I should be
  59. PHYSICS - Waves

    Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test. If 3 sound waves pass a microphone in 4.0 s while traveling 5.0 m/s, what is the wavelength of the waves? (6.67 m)
  60. physics

    physics:the notes at 110Hz has two strings at this pitch. if 1 slips from its normal tension of 600N to 540N what beat frequency would be heard when the two strings are stuck simultaneously?
  61. english grade 12

    i'm to make an note making frame work which includes main idea and examples or supporting ideas or key words. the video is naming canada. Main Idea: Discovering our nation Canada 1. Native language Kanata was translated as our nation country name. 2. The
  62. Quick Question

    What is Quantum Physics and Quantum Mechanics? Is there even a difference between them? thank you very much.
  63. Biology

    Can someone please tell me if I have the right answers? Pasteur's experiments led to which theory? A. biogenesis theory B. endosymbiont theory C. evolution theory D. spontaneous generation theory I think its A or D Scientists have fossil evidence for which
  64. Biology

    Can someone please tell me if I have the right answers? Pasteur's experiments led to which theory? A. biogenesis theory B. endosymbiont theory C. evolution theory D. spontaneous generation theory I think its A or D Scientists have fossil evidence for which
  65. Physica

    Peace, and mercy and blessings of God Atqm thank you for helping me teach my children and success in physics at the Mah their college education and that the wrinkles in the balance Hassanatkm for all and especially Damo,Drwls, bobpursley.Elena
  66. physiology

    There is a man who drank a large quantity of moonshine (illegal alcoholic drink). Now he is complaining about "cotton mouth". Physiologically, what is the explanation for his thirst? Ethanol is a dehydrating agent (diuretic). Alcahol combines with water,
  67. Physics help

    Are you sure that's how you do #4 because they have 2 different directions. I need physics help. I don't understand how to do these questions. Can someone show me what I should use? and explain. I'll do calculations by myself. A stationary curling stone is
  68. Writing

    Which word creates a transition that would introduce a summary or conclusion? (4 points) In addition Altogether Admittedly Initially *I think D but I am not sure, maybe B. Which word creates a transition that establishes chronological order? (4 points)
  69. physics

    Physics students ride the Power Tower at Cedar Point. The drop only takes 5.53 seconds until the car brakes. What was the height in meters that these brave students dropped? -Thanks
  70. Science

    How does physics apply in a homemade glass xylophone? [8 glasses of same size filled with water at different levels for pitch, and tapped with a spoon to make the sound] I know it has something to do with waves and sound, but I'm not quite sure what else.
  71. Physics

    i have just started physics, can someone please show me step by step how to do this: The radius of Earth is 6 370 000 m. Express this measurement in km in scientific notation with the correct number of significant digits. thank you for your help
  72. Physics

    After solving a difficult physics problem, an excited student throws his book straight up. It leaves his hand at 2.5 m/s from 1.5 m above the ground. A) How much time does it take until the book hits the floor? B) What's its velocity then?
  73. english

    I shall wirte what I would say, but we are speaking about modals, so I think I have to answer with them... My solutions: 1. Your teacher is carrying a pile of heavy books. Offer help. -> Shall I carry that for for? or Sorry, can I help you? 2. A friend
  74. PLEASE

    PLEASE SOMEONE RESPOND TO MY QUESTION: Physics (12)! THIS QUESTION IS DRIVING ME NUTS!!! I DID THIS 7 DIFFERENT WAYS!!! I AM SO LOST! PLEASE! I NEED THIS QUESTION FOR TOMORROW!!!! P.S. thanks so much....very much appreciated!
  75. Physics

    Physics instructor grew up with a 3 second rule for lightning bolts to allow estimation of the distance of thunderstorms. Why is that? Explain the difference between the “3 second rule” and the “5 second rule”.
  76. Physics

    You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International Space Station. Due to mishandling of units by a
  77. Physiology and asthma

    CAN SOMEONE PLEASSE HELP ME... i am doing a physiology project on asthma and i have to do a summary/ chart on the question: Organization of affected organisms organism organ system organs tissues cell types/ functional units and i have noooo idea what it
  78. physics

    Numerical of chapter 5 Fsc part 1 physics "plz answer me fast am so confused" 5.6: A 1000 kg car traveling with a speed of 144 km /h round a curve of radius 100 m. Find the necessary centripetal force?
  79. Science

    What is a nuclear membrane This is a biology question, not nuclear physics. You will find a definition at http://www.answers.com/topic/nuclear-envelope
  80. Science

    the SI UNIT for mass is what kg kg is correct. Here is a good site for SI units. http://physics.nist.gov/cuu/Units/units.html
  81. Physics Urgent!!!!!

    OK, I know, I'm postin this way too many times but I'm halfway there now.... 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
  82. Physics Urgent!!!!!

    OK, I know, I'm postin this way too many times but I'm halfway there now.... 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
  83. writing

    Can you explain the differences in these terms, and the function they serve when writing an essay? thesis and thesis statement central reasoning and central relationship The thesis is your central idea, your main idea, the point you are trying to prove in
  84. Are there even any physics tutors here???

    Sorry if I'm sounding as if I'm whining but I'm getting pretty annoyed at how there are many unanswered physics questions. Literally posted a question two months ago and never got any help... This is kinda annoying because the questions get lost in the
  85. Practise questions for SAT subject tests

    Is there any useful,good sites to find quality questions for practising for SAT english,math,physics tests ,for free,other than the limited number of questions avilable at the Collegeboard site?
  86. Physics

    Reposted under Physics... I've tried for hours to solve for v, but can't get the rearranging right. I'm using L= Lo sqrt 1- v^2/c^2 Can anyone suggest the first couple of steps? I can get the answer by the way, by substituting values 'til I get the
  87. physics

    questoins asked in a physics lesson which i find hard to answer: 1) do all objects have the same acceleration when they fall to earth? explain the answer. 2) what is the difference between weight and mass? any help would be greatly appreciated :)
  88. Physics

    A student reading his physics book on a lake dock notices that the distance between two incoming wave crests is about 0.65 m, and he then measures the time of arrival between the crests to be 1.8 s. What is the approximate speed of the waves?
  89. physics

    Some of the branches of physics that you will study in this course investigate motion, the properties of materials, sound, light, electricity and magnetism, properties of atoms, and nuclear reactions. Give at least one example of an application of each
  90. Physic

    A student reading his physics book on a lake dock notices that the distance between two incoming wave crests is about 0.65 m, and he then measures the time of arrival between the crests to be 1.8 s. What is the approximate speed of the waves?
  91. Physics

    Consider two students, a 65 kg guy and a 50 kg girl who are attracted to each other, gravitationally, that is. They sit next to each other in Physics class which means there is 1.5m between their centers. What is the magnitude of the force of gravity
  92. physics

    Some of the branches of physics that you will study in this course investigate motion, the properties of materials, sound, light, electricity and magnetism, properties of atoms, and nuclear reactions. Give at least one example of an application of each
  93. economics

    (This homework question was removed due to a copyright claim submitted by K12 Inc.) I don't know much about this, so I googled it. I still didn't find a lot, but this idea might help. Note that this is just one idea I saw that made sense to me and I know
  94. PHYSICS-Help required

    My physics questions are not on graphs, this is just a practise quiz I'm doing. All the questions I've done so far were not guessed answers, I did my work on a separate piece of paper, all I really had to do was divide. The other questions above that I
  95. Science

    500g of water at 100°c is mixed with 300g of water at 20°c.specific heat capacity of water is 4.2Jg°c.find the final temperature of mixture. (Physics)
  96. physics and bicycles

    I have aq uick question about bicycles relating to physics. I hope you can understand this! First (technical question) why don't bikes move backward when you pedal backward? On to the physics. A string is tied to a bike enabling one to pull the pedal from
  97. Physics

    What is the average braking force required of a 1200kg car in order for it to come to rest from 60km/h in a distance of 25m Physics - Damon, Monday, September 1, 2014 at 6:51am Vi = 60 km/h (1 h/3600 s)(1000 m/km) v = Vi + a t 0 = Vi + a t t = -Vi/a d = Vi
  98. Art

    file:///C:/Users/Piccollo/Desktop/1190597-6192014-20424-PM-1750126416.jpg In this creation what important components are used to the greatest effect? A)color and space B)architectural design**** C)physics and mathematics D)innovation and creativity Am I
  99. English+Essay

    I have to write an essay, but I have no idea how to start it. It says that my essay has to be MLA formatted, and only 3/4 to 1 page long. 2 page is the longest it can be and must be double placed. Using MLA format, there's is no way for me a write a proper
  100. Physics

    I am having a problem answering a physics question: A plane is heading due south and climbing at the rate of 60 km/hr. If its airspeed is 540 km/hr and there is a wind blowing 110 km/hr to the northwest, what is the ground speed of the plane?