physics please HELP !

130,975 results, page 98

  1. rosa

    4 2/9+3 1/3 simplify... help please
  2. math 21

    xy-x+y=0 please answer this for me
  3. math

    14. Let f(x) = -­2x ­- 7 and g(x) = ­-4x + 3. Find (f o g)(-­5) A)23 B)-53 C)-9 D)3 please help!!
  4. Math

    5x - 3 = 7x + 11 x=-4 3w -4 = w+8 w =6 Please check. Thanks
  5. Mathematics

    how many 2/3 are in 1? This is confusing to me. Please help :)
  6. Math

    (-1.15) x 3.2 = Please explain.
  7. Math HELP!

    [(82 – 4) – 6] ÷ 6 = EXPLAIN please
  8. French class

    please help!!
  9. Algebra

    6= x+2/3 help me solve this please
  10. Math

    What is the solution to 5q=-75? Please Help
  11. Math

    |x - 8|- 15 = -6 How do I solve this.. Please don't do it for me..
  12. Math

    -1/2 + 1/3= A.-1/6 B.-1/3 C.2/3 D.1/6 -3 5/1 + (-6 1/2)= A.-3 2/7 B.-3 7/10 C.-9 2/7 D.-9 7/10 5/8 -(-2/8)= A.-3/8 B.-7/8 C.3/8 D.7/8 -9/10 - 2/5= A.-1 3/10 B.-1 1/10 C.-7/10 D.-5/10 6 3/5-(-2 1/5) A.-8 2/5 B.-4 2/5 C.4 2/5 D.8 2/5 SOMEONE PLEASE HELP ME!!!
  13. Economics-Macro

    Help please?
  14. *** MATH, PLEASE HELP!

    Solve 5x^-5/x^-4x+3. THANK YOU!
  15. Math

    Expand (3+i)^5, where i^2=-1 (3+i)^5=? Please and thanks.
  16. MATH

    Please solve 6/2(1+2)= 1
  17. Algebra

    3x^2 + 6 - 2x + 5x - 4x^2 + 9 NEED HELP PLEASE

    4x > 1.2
  19. Math

    If 2(5-8)^2 + 3(6+2)= 7x, what is the value of x A-- 2^2+1 B-- 3^2 -3 C--2^2 +3 D-- 2^3 E-- 3^2 Help please!!
  20. math

    -8y+3(g+h) - -5y-4(g+h) With solution please. Thank you!
  21. Math

    Help me with my homework, please! 1. 5/6 x3 A. 8 1/3 B.10 5/6 C. 50/60 D. 5/60 2. 3/7 X 2/3 A. 9/14 B. 1 5/9 C. 2/7 D. 3/12 3. 5/8 X 2/3 A. 7/24 B. 5/12 C. 15/16 D. 16/15 4. 3 3/4 X 2 2/3 A. 6 1/2 B. 6 8/9 C. 8 D.10 5. 2 5/6 X 1 7/8 A. 2 35/48 B. 5 5/16 C. 5 35/48 D. 6 4/16
  22. Math

    Is 26 divisible by 2? PLease help:( Thank you !!!
  23. Algebra Please help

    what is the solution to 3x^2+3x-5=0
  24. math

    Is 2+i a solution of z^2-4z+5=0? Please help!!!!!!! :(
  25. AlgebrA

    Please halp 5.4+0.2x=-1.4x+8.6
  26. Geometry (PLEASE HELP!!!)

    what are the values of a and b? 1) a=9/2, b=15/2 2) a=15/2, b=9/2 3) a=16/3, b=15/2 4) a=9/2, b=13/2
  27. MATH

    Suppose R = {1, 3, 5, 7, 9, 11, 13, 15, 17} and D = {3, 6, 9, 12, 15, 18, 21, 24, 27}. What is the R $ D? A. {3, 9, 15} B. {1, 5, 7, 11, 13, 17} **C. {1, 3, 5, 6, 7, 9, 11, 12, 13, 15, 17, 18, 21, 24, 27} D. {6, 12, 18, 21, 24, 27} Please help
  28. Math (please help me)

    what is the solution of x/3 > -3 A) x < -1 B) x > -1*** C) x < -9 D) x > -9
  29. Physics

    please check these answers for me When an object is moving with uniform circular motion, the centripetal acceleration of the object a. is circular b. is perpendicular to the plane of motion c. is zero d. is directed toward the center of motion D What is the term for the net ...
  30. Physics

    there's three parts, i keep getting these wrong please help. A set of crash tests consists of running a test car moving at a speed of 11.8 m/s (26.4 mi/hr) into a solid wall. Strapped securely in an advanced seat belt system, a 59.0 kg (130 lbs) dummy is found to move a ...
  31. Physics / Astronomy

    Here is my question: Consider the bending of light by the gravitation of the Sun as described by Newtonian physics. Light of frequency f passes at a distance d from the center of the Sun, which has a mass M. Show that the bending angle of the light is proportional to M/d. I'm ...
  32. Physics

    Do Newton's Law apply to motion inside your car? A.Yes, but only when at rest. B.Yes, but only when traveling at constant velocity or at rest. C.No, never. D.Yes, always. So I tried answering the question with D at first because I was thinking that it is a car in motion so ...
  33. Science

    What are the properties of plasma? I brought home the wrong school book and of course I forgot what the properties were. Thanks loads for the help. Thanks a lot, it really helped. Next time Iwill pay attention to which book I grab.
  34. physics

    A) A ball is thrown vertically upward with a speed of 27.6 m/s from a height of 1.9 m. How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s2. Answer in units of s B) How long does the ball take to hit the ground after it reaches its highest...
  35. Algebra II

    I don't exactly understand what needs to be done in this problem. Could someone please explain what I am supposed to be doing a bit clearer than the book? Four jobs need to be done, and four workers are available. The chart shows how long each worker takes to complete each job...
  36. chem/some1 check my work plz.

    2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the % yield of nitrogn gas?? please check if is ...
  37. physics3

    home / study / science / physics / physics questions and answers / Ed And Annie Are Ice Skating. Ed (55 Kg) And Annie (40kg) Both Wearing Skates Face Each Other ... Your question has been answered Let us know if you got a helpful answer. Rate this answer Question: Ed and Annie...
  38. Physics Please check my answers

    It's possible for a body to have both rotational and translational motion at the same time. True. << False. 2. The moment of inertia of an object would be different on the surface of the earth than on the surface of the moon. True. << False. 3. The moment of ...
  39. 6th Grade Math Help & FAST!!!

    I only have 2 questions. 1 is multiple choice and one I have to type so please help. 1. Which set of output values correctly completes the function table? This is the function table: y= 2x - 4. Input (x) 6, 2, -4. Output (y) those three slots all have question marks. A. 8, 2...
  40. Universe and the Stars-Please Check

    Give 2 reasons y elliptical galaxies are considered to be older & more evolved than spiral galaxies. They are considered to be older because they have little instellar matter and because they rarely form new stars like the other galaxies do. They seem to be more evolved than ...
  41. science

    An area in your state has been flooded due to heavy rains. How might scientists from the three main branches of science interact in their study of the flood, its effects, and how future flooding might be controlled? OK, I will bite: What do you think the three main branches of...
  42. Econ 220

    Suppose we have the following market supply and demand schedules for bicycles: Price Quantity Demanded Quantity Supplied $100 70 30 $200 60 40 $300 50 50 $400 40 60 $500 30 70 $600 20 80 a. Plot the supply curve and the demand curve for bicycles. (Note please don’t worry ...
  43. Chemistry Need help ASAP

    A proposed mechanism for a reaction is: (i) A + B2 = AB2 Ea1 = 12 kJ/mol ƒ´H1 = 3 kJ/mol (ii) AB2 + C2 = ABC + BC Ea2 = 30 kJ/mol ƒ´H2 = 5.2 kJ/mol (iii) ABC + B2 = AB2 + BC Ea3 = 10 kJ/mol ƒ´H3 = -7.8 kJ/mol a) Which is the rate determining step? Explain why. (ii) It ...
  44. Chemistry Need help ASAP

    A proposed mechanism for a reaction is: (i) A + B2 = AB2 Ea1 = 12 kJ/mol ƒ´H1 = 3 kJ/mol (ii) AB2 + C2 = ABC + BC Ea2 = 30 kJ/mol ƒ´H2 = 5.2 kJ/mol (iii) ABC + B2 = AB2 + BC Ea3 = 10 kJ/mol ƒ´H3 = -7.8 kJ/mol a) Which is the rate determining step? Explain why. (ii) It ...
  45. math (pre clac)

    so its this picture of a rectangle inscribed in a circle. the circle has a radius of 2. the vertexes of the circle are present in every quadrant, but you cant tell exactly whgat point they represent. point Q (x,y) is the vertex of the rectangle in Quadrant I and is on the ...
  46. Social studies

    1. Explain the advantages and disadvantages you discovered for interdependence. Include examples from the past and present of interdependence in Central America. 2. Explain the advantages and disadvantages of independence. Include examples from the past and present of ...
  47. Math - Calculus

    Find the equation of the non-vertical asymptote. What is the smallest value of x at which f(x) intersects its? -6x^3 + 2x^2 - 9x +3 / -5x^2 +9x - 4 1)Find the equation of the non-vertical asymptote. 2)What is the smallest value of x at which f(x) intersects its non-vertical ...
  48. Graph problems!!!

    Ok. so i'm supposed to find the coordinates of a line using the slope intercept method but i don't understand it!!! can some one PLEEAASE help me? also i'm supposed to graph a line using the same method and they give me the coordinates oly its in an equation form that i need ...
  49. Physics

    1)When a car drives off a cliff, why does it rotate forward as it falls? (Consider the torque it experiences as it rolls off the cliff.) 2)The front wheels located far out in front of the racing vehicle help to keep the vehicle from nosing upward when it accelerates. What ...
  50. history

    Describe Gouverneur Morris's life while in office within the U.S government? Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a tutor with this specialty online...
  51. business

    How can you end a contract without facing legal action? Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a tutor with this specialty online right now, be sure ...
  52. Macroeconomics

    Should Fed be independent or a government agency subordinate to Congress and the President? Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a tutor with this ...
  53. History

    Describe the atrocities committed in Congo by King Leopold’s colonial managers. Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a tutor with this specialty ...
  54. Physics

    Why, when you stroke a cat's fur, or comb your hair on a cold, dry day can you hear a crackling sound? Doing these things in a darkened room, you can actually see sparks. Explain. Please explain to me! Thanx !! Static electricity builds up with a positive charge on one of the ...
  55. creative writing- please help

    Please help me- I signed up for a creative writing class thinking that I would do pretty well because I am not that bad of a writer but the questions that are asked are really hard to answer. The questions that were asked were like "how old is the color T" (I guess it's ...
  56. Spanish please check

    please check if I answered these questions correctly-they had to be in the past tense-not sure what number 6 is asking 1.¿Comó te sentiste ayer? Me sentí muy bien ayer. 2. ¿Adonde fuiste ayer? Yo fui al cine. 3. ¿Adonde fue tu mama ayer? Mi mama fue a la tienda. 4. ¿...
  57. active physics

    a=change in velocity/time, is this the formula i use for this question: a car takes 5 seconds to speed up from 10 m/s to 60 m/s. what is the acceleration? yes! so what do i do from there? If it goes from 10 to 60, what is it's CHANGE in velocity (speed)? is it 50 now ...
  58. psychology

    For this discussion, please choose one of the two options: behaviorism or cognitivism. Taking on the role of either a behaviorist or a cognitivist, you will demonstrate your understanding of your chosen psychological view by explaining why your theory and its history are ...
  59. Chemistry

    I am completely lost in chemistry. Everything the teacher says sounds like a different language to me and I am usually really good in the class. Can someone help me do this problem please? An element "E" is present as 10E (The 10 is like an exponent to the left of the E) with ...
  60. Science [Earth]

    Can you please: 1. briefly explain the concept of radioactive decay and describe how it can be used to find the absolute age of rocks. 2. contrast relative age with absolute age and describe at least three methods of determining either. 3. compare advantages and disadvantages ...
  61. Math

    Mrs. Lincoln budgets her monthly take-home pay. The remainder she deposits in her savings account. She budgets 1/3 of her take-home pay rent, 1/8 for car expenses, 1/6 for food, 1/24 for insurance and 1/16 for entertainment. What is Mrs. Lincoln's monthly take-home pay if she ...
  62. Org. Chem.

    We did an experiment with the synthesis of n-butyl bromide, using n-butyl alcohol, NaBr, and H2SO4. The question is: Aqueous sodium bicarbonate was used to wash the crude n-butyl bromide. A) What was the purpose of this wash? Give Equations. I know it was used to remove any ...
  63. Chemistry: please help, I am stumped

    When nitroglycerin (C3H5N3O9) explodes, it decomposes into the following gases: CO2, N2, NO, and H2O. If 239g of nitroglycerin explodes, what volume will the mixture of gaseous produces occupy at 1.00 atm pressure and 2678oC? a. Write a balanced equation for the reaction. b. ...

    timmy is sitting at rest, he has50j ofGPE .then his dad gives timmy a big push, and when his dad let go timmy has 75J of GPE and 125J of KE a) Befoe his dad pushes him GPE____ KE___ TE____ B) Immrdialty after his dad pushed him GPE_____ KE____ TE___ C) think about the Law of ...
  65. Solar Energy please help

    Greeting All, please assist with the below. Thanks. The spectral power density of a solar simulator is given by: P(λ)=7.5∗1015λ−2.25∗109 [Wm^-2m^-1] for 300nm<λ<500nm P(λ)=2.25∗109−1.5∗1015λ [Wm^-2m^-1] for 500nm<...
  66. Math Please explain

    Mike’s Sporting Goods sells elliptical trainers under two payment plans: cash and installment. Under the installment plan, the customer pays $90/month over 5 years with interest changed on the balance at a rate of 19%/year compounded monthly. Find the cash price for an ...

    John Ryther developed a model aquaculture farm at the Woods Hole Oceanographic Institution that obtained nutrients from __________. I'm not certain whether the answer is sewage, bacteria or algae. Someone please help. His 1st raw ingredient is treated sewage. Please read: http...
  68. Role of computers in media

    could u please help me out and give me a few tips about the role that computers, specifically I.T. plays in the media?? i have gathered a few ponts but not enough...any suggestions are welcome.. Please list what you have come up with so far. Then teachers won't duplicate ...
  69. Physics ~IMPULSE~

    a) A tennis racket a 450 N force on a 0.05 kg tennis ball over a 0.006 s time period. What is the impulse applied to the ball? b) A ball (0.5 kg) is thrown with a velocity of 15 m/s. A receiver catches the ball and brings it to rest is 0.02 s. a) What is the change in momentum...
  70. Spanish please test tommorrow

    can you please help me translate the answers 1: What type of exercise do you do in order to live a healthy life? I play sports and walk everyday my answer in spanish: Me siento muy feliz sobre mi perito nuevo 2: How do you prepare for school in the morning? (use reflexive ...
  71. Physics

    Posted by Adam on Thursday, August 13, 2009 at 11:08am. In the figure take q1 = 22uC and q2 = 20u. The force on q_1 points in the - x direction, What is the magnitude of the force on q_1? I don't know where to start, can someone help me? Responses Physics - bobpursley, ...
  72. Physics

    In physics, work is defined as the product of the A) net force and the distance traveled B) net force parallel to the motion and direction traveled C) net force parallel to the motion and the time it is applied
  73. Physics -- check answers please

    1. Which of the following best shows the transfer of heat by radiation? my answer: c 2. Which of the following best shows the transfer of heat by convection? my answer: b 3. Water has specific heat of 4200 J per kilogram per degree celsius. This means that 2 kg of water will ...
  74. physics please help!!

    A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V Volts. (C is the capacitance and U is the stored energy.) Select true or false for each statement. 1) With the capacitor connected to ...
  75. inequalities

    A home-based company produces both hand-knitted scarves and sweaters. please help please The scarves take 2 hours of labor to produce, and the sweaters take 14 hours. The labor available is limited to 40 hours per week, and the total production capacity is 5 items per week. ...
  76. chemistry

    146 mL of wet H2 gas is collected over water at 29.0 degrees celsius and room pressure of 750 torr. give the volume of the dry H2 gas collected at STP, give the mass of the dry H2 collected, and give the volume of the dry H2 at room conditions and the volume of H2O in the ...
  77. physics

    A 750-N physics student carries a 4.0 meter board, uniform in shape, and 190 newtons in weight to our swimming pool. The student then places the board on the deck and next to the pool in such a way so 1.5 meters of the board extends out over the edge of the pool. How far, in ...
  78. Math(Geometry)

    To Lauren - Ms. Sue, Monday, September 28, 2009 at 10:24pm What post? What is your question? In addition, your "name" can not be HELP ME NOW!!!! No one appreciates being screamed at to help you now! Using all caps online is like screaming at us. To Lauren - HELP ME NOW!!!!, ...
  79. horizontal displacement physics

    how do we find horizontal displacement in physics?
  80. Math

    Jake can carry 6 1/4 pounds of wood in from the barn. His father can carry 1 5/7 times as much as Jake. How many pounds can Jake's father carry? Answer: 1 3/28 Can you please double check the above answer. I don't know if it is right or wrong. 2. A glass can hold 3 1/3 cups of...
  81. Biology 20 please help

    State 2 molecules that get reduced and 2 that get oxidized during photosynthesis.  ---------------------------------- I know that NADPH and Glucose are in their reduced form.  2 molecules that get reduced. Will it be NADP+ because it is gaining 2 electrons and H+ to form ...
  82. Maths

    Can someone give me the checkpoint exam topics that are required for a student to revise Please give us more and clearer context for your question. It is not clear what you want to know. What exam topics? Why do you need to revise them? Please repost with the additional ...
  83. Physics

    The Ultimate strength of a round steel rod is 630.000MPa. If a factor of safety of 5.000 is required, what is the maximum permissible load for the rod if it has a diameter of 3.000cm? ANS = kN (Round to 3 decimal places) Safety = 5.000 Rod diameter = 3.000cm = 0.03m Ultimate ...
  84. physics graphing help please

    (a) Write the equation for a transverse sinusoidal wave with a maximum amplitude of 2.5 cm and an angular frequency of 2.9 rad/s that is moving along the positive x-direction with a wave speed that is 5.00 times as fast as the maximum speed of a point on the string. Assume ...
  85. spanish

    Estoy interesado en conocer gente Quiero ver y experimentar otras culturas. Quiero aprender otras culturas. Quiero descubrir nuevas comidas y las personas. Quiero ver cómo es la vida sobre. Estoy interesado en sacar fotos de otros del país. Quiero probar diferentes alimentas...
  86. English

    Hello. I'm very grateful for all your help and attention. I've already asked a similar question but there are so many tenses in English that sometimes it's difficult to see the difference. Please help me to choose the correct structures (maybe all of them are OK? If yes, ...
  87. College Physics

    Use the relativistic coordinate transformation (x, y, z, t) − (x′, y′, z′, t′) shown and given below where the latter frame S′, (x′, y′, z′, t′), has a velocity 2.69813 × 108 m/s in the positive direction relative to...
  88. Math for Trish To Help Me With

    Factor the following. You will earn 5 points for each polynomial that is factored correctly. Please label your individual answers with a – f. a.) 4x2 - 25 b.) 3x2 + 6y c.) x^2 - 7x + 10 d.) 2x^2 - 9x – 18 e.) 2ax + 6bx + ay + 3by f.) 6x^2 + 12x – 48 *Can you help me with...
  89. English

    Could you please check my sentences, please? Thank you, Writeacher. 1) You can't get out of it: you must confess that you have broken the vase. We were having dinner when the lights went out. 2) The teacher invited me to look up the unknown words in the dictionary. 3) Would ...
  90. 7th grade math help asap plz

    6. In which quadrant is the point (x, y) located if x is negative and y is positive? (1 point) II III IV I At the halftime show, a marching band marched in formation. The lead drummer started at a point with coordinates (–2, –5) and moved 3 steps up and 1 step right. a. ...
  91. Physics

    A block M1 of mass 20.0 kg sits on top of a larger block M2 of mass 30.0 kg which sits on a flat surface. The kinetic friction coefficient between the upper and lower block is 0.415. The kinetic friction coefficient between the lower block and the flat surface is 0.115. A ...

    A hollow brass cylinder is weighed on a pan balance (kitchen scale) which read in kg. The scale reading is 5.56 kg. The brass cylinder is now removed from the scale and is replaced by a beaker of liquid density 1.56 * 10^3 kg/m^3; the scale now reads 17.50 kg. The brass ...
  93. algebra

    In 1992, the life expectancy of males in a certain country was 61.6 years. In 1995, it was 65.2 years. Let E represent the life expectancy in year t and let t represent the number of years since 1990. The linear function E(t) that fits the data is... E(t)=_____t + _______ (...

    when it comes to chunks being ejected the masses are and velocities are 5kg(1737m/s), 10kg (184.3m/s), 100kg (1994m/s), 1000kg (2008m/s) What happens to the difference between the velocities as the number of chunks increases? What happens to the kinetic energy of the system ...
  95. need HELPwith 2 questions!!

    How long is day and how long is night? Does the sun come up in the morning all over the world? Explain please help me I only need: How long is day and how long is night? Does the Sun come up in the morning all over the world? Please explain to me. At any given time, how much ...
  96. math

    I am a little confused on the first question of this problem could someone please check my answers and please explain why and what I need to do to get correct answer thank you Calculate the mean, and write this as a mixed fraction. 12,9,4,6,8,12,13,14,11,5,12,2,9,13 answer I ...
  97. Physics

    A small rocket is fired in a test range. It rises high into the air and soon runs out of fuel. On the way down it passes near an observer (sitting in a 21.5-m-high tower) who sees the rocket traveling at a speed of 35 m/s and moving in a vertical plane at an angle of 56° ...
  98. Physics

    You slide your friend with a mass of 65 kg out of the way as they are blocking the exit and keeping you from escaping from physics class where you have been tormented by problems for the last hour and a half. The coefficient of kinetic friction between the floor and your ...
  99. physics

    in different parts of a car air conditioner a liquid changes to a gas and a gas changes to a liquid. a)which of these changes causes the cooling?why? b)describe how the air conditioner removes heat from the car's cabin. can someone please help??thank you so much! it takes heat...
  100. 7th grade science Ms. Sue please check

    Hi! Can you check my answers please and I need help on 4 and 5 I cannot find the answers!!!! Please help! 2. _____ transports materials within a cell and between cells and makes up ______ percent of most organisms. (1 point) Fat; 60 Protein; 40 Sugar; 75 Water; 50 3. Which of ...
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