1. physics..

    This seems easy and yet i'm skeptical if these are actually supposed to be difficult.. It asks for a lot. It's seems repetitive.. 1. a falling stone takes .30 seconds to travel past a window 2.2m tall. From what height above the top of the window did the

    asked by Abby on December 17, 2015
  2. chemistry

    What is the minumum acceleration potential (V) that must be applied to a beam of free electrons for diffraction to occur in a crystal of niobium (Nb)? Express your answer in volts.

    asked by Harold on December 21, 2013
  3. physics

    calculate the acceleration of 2kg block on a horizontial friction-free air table when you exert a horizontal net force of 20N.

    asked by Eve on February 8, 2013
  4. Phsysic

    Calculate the acceleration of a 2kg block on a horizontial friction-free air table when you exert a horizintial net force of 20N

    asked by Eve on February 8, 2013
  5. Science

    Which of the following explains why a parachute makes a person falling from a great height fall more slowly? A)The parachute reduces the friction in the air. B)The parachute pulls upward, so the fall is slower. C) The parachute causes air resistance, which

    asked by Mia on March 27, 2012
  6. algebra

    At the local ballpark, the team charges $5.00 for each ticket and expects to make $1,300 in concessions. The team must pay its players $1,800 and pay all other workers $1,500. Each fan gets a free bat that costs the team $3.00 per bat. How many tickets

    asked by codi on January 2, 2012
  7. Physics - HELP

    At what rate would a 75kg person travel during a slip/fall on a wet surface to the landing position? And what would be the force of the fall?

    asked by Mary Jo on August 12, 2010
  8. ELAAAAAAAAAA

    What does headstrong mean as it is used in the following lines from Act IV, scene 2 of Romeo and Juliet [ Enter Juliet ] Capulet : How now , my headstrong! Where have you been gadding?” Juliet: Where I have learn’d me to repent the sin Of disobedient

    asked by HELLO WORLD<>!!!!!!!!!!! on March 26, 2015
  9. L.A.Help!!!!!!

    Which sentence is a main idea of "Why Leaves Turn Color in the Fall"? A. Leaves stop making chlorophyll add summer ends. B. Leaves reflect the colors of corn, pumpkins, and cranberries in the fall. C. Photosynthesis begins in the fall. D. Longer days and

    asked by blue on November 15, 2014
  10. volume,mass,weight

    if you travelled to a planet that had twice the force of gravity of earth and you have taken a small mass that is 1kg what is the mass weight and volume of the 1kg object on the new planet compared to earth

    asked by dw on March 5, 2012
  11. integrated science

    A planet is 2.45 x 10^9 km away. How long would it take in hours to travel to the planet at the speed of light? (speed of light is 2.998 x 10^8 m/s)

    asked by David on September 2, 2016
  12. physics

    A spinning disk of mass 5.0 kg and radius 0.25m is rotating about an axis through its center at 400 rev/min. a.) What is the angular velocity of the disk in rad/s? b.) What is the moment of inertia of the disk? c.) If it accelerates at a constant rate to

    asked by Lauren on July 29, 2012
  13. Physics

    A spinning disk of mass 5.0 kg and radius 0.25m is rotating about an axis through its center at 400 rev/min. a.) What is the angular velocity of the disk in rad/s? b.) What is the moment of inertia of the disk? c.) If it accelerates at a constant rate to

    asked by Lauren on July 29, 2012
  14. Dynamics

    A pelton wheel attains its operating speed of 800 rev/min% determine constant angular acceleration of pelton wheel

    asked by benny on July 31, 2012
  15. physics ...plzzzz help...

    1 ) If the mass of the Moon is 7.4 x 1022 kg and its radius is 1.74 x 106 m, compute the speed with which an object would have to be fired in order to sail away from it, completely overcoming the Moon’s  gravity  pull. 2 ) Show that if a satellite

    asked by rachel on May 29, 2012
  16. English II

    Use the text box below to do a five-minute free-writing session. Time yourself. If you would like to try again, give yourself another five minutes. Remember, this is free-writing. You may type whatever you like. This section of your submission will not be

    asked by Carlos on May 7, 2013
  17. Statistics

    Suppose a basketball player, Player A, made 80% of her free throw attempts last season and that she continues to shoot free throws at the same rate. Assume that free throw attempts are independent. Let the random variable X be the number of free throws

    asked by Angel on March 2, 2012
  18. physics

    A uniform rod of mass M = 0.245kg and length L = 0.49m stands vertically on a horizontal table. It is released from rest to fall. (a) Calculate the angular speed of the rod, the vertical acceleration of the moving end of the rod, and the normal force

    asked by jay on October 30, 2012
  19. Physics

    A heat engine is 20% efficient. If it loses 800 J to the cooling system and exhaust during each cycle, the work done by the engine is: 200 J 1000 J 800 J 20 J

    asked by Steve on May 8, 2015
  20. math percents

    have a word problem can you help josh wants to buy a video game system that cost $800 rightnow he has $5.0 saved. what percent of the $800 has he saved so far?

    asked by marko on February 14, 2012
  21. lots of math

    A biased die was rolled 800 times, and the number 5 occurred 40 times. What is the experimental probability of a 5 occurring? A. 1/20 B. 1/800 C. 1/5 D. 1/2

    asked by steve on May 25, 2011
  22. Phar Science

    A researcher in Urumqi drops a rhodium ball of diameter 4.20 mm through a dilute aqueous solution of a high molar mass natural gum contained within a glass tube which has four graduations marked 10 cm apart. It is 18 C in the laboratory and the ball takes

    asked by Sha on April 6, 2011
  23. Math

    Suppose th average rain fall in april was leas than THE average rain fall in may Write a possible average rain fall for april that includes a 4 in the hundreths place Express You answer using 2 differnt forma

    asked by Summer on December 24, 2014
  24. math/science

    What is the rate to fall safely? Ex. fall with a parachute from an airplane

    asked by Brianna on October 4, 2007
  25. ENGLISH

    If we united we will stand if we divide we fall. If we will fall what happen to us?

    asked by DARPAN on February 24, 2013
  26. hvac

    what is the difference between fall-prevention and fall-arresting equipment?

    asked by antonio on November 18, 2013
  27. AP Physics

    An alien planet has g = 2.2 m/s2. If a ball is thrown upward from a tower 4.0 m above the surface of the planet at an initial speed of 38.1 m/s, at what time or times is the ball at a height = 38.6 m? If there is more than one time, list from earliest to

    asked by Turner on September 6, 2015
  28. Physics

    A man of mass 70 kg is in free fall in the air. He reaches a terminal speed of about v_term = 54 m/s. (Note that v_term >> v_crit and we are in the pressure dominated regime where F_fric is directly propotional to v^2 ; we have g = 9.8 m/s ) What is the

    asked by saru on October 16, 2013
  29. Physics Urgent please help

    A man of mass 70 kg is in free fall in the air. He reaches a terminal speed of about v_term = 54 m/s. (Note that v_term >> v_crit and we are in the pressure dominated regime where F_fric is directly propotional to v^2 ; we have g = 9.8 m/s ) What is the

    asked by saru on October 17, 2013
  30. physics

    A grinding wheel in the shape of a solid disk is 0.200 m in diameter and has a mass of 3.00 kg. The wheel is rotating at 2200 rpm about an axis through its center. (a) what is its kinetic energy? (b) How far would it have to drop in free fall to acquire

    asked by sarah on November 4, 2009
  31. Physics

    I have a hard time solving this problem. The weight of an object at the surface of a planet is proportional to the planet's mass and inversely proportional to the square of the radius of the planet. Jupiter's radius is 11 times Earth's and its mass is 320

    asked by Nisar on August 28, 2005
  32. science-chemistry

    The free energy generated by ion movement in the cell is used by the cell to do work. Compute the minimum number of millimoles of sodium that would be needed to pump one millimole of calcium ions if the following concentrations were present in the cell.

    asked by rashi on November 7, 2015
  33. science

    If sam drops a 40 kg mass from a height of 20 meters on earth how much was the potential energy of the mass before he dropped it a-800 j b-784 n-m c-800 n-m d-7840 j e- 200 j

    asked by erika on March 14, 2017
  34. physical science

    If sam drops a 40 kg mass from a height of 20 meters on earth how much was the potential energy of the mass before he dropped it a-800 j b-784 n-m c-800 n-m d-7840 j e- 200 j

    asked by erika on March 14, 2017
  35. Ok..Now One More Thing

    I Know...I Am Such An Idiot For Posting So Many On One Subject. But Heres The Thing::: 0.2 mg = ? g ..Searched it and it came up 0.0002,Anybody know another way to find the question out?.. 8.6 kg = ? g ..Searched it and it came up 0.0086,Know a different

    asked by Cheyenne on September 17, 2009
  36. English

    hat does headstrong mean as it is used in the following lines from Act IV, scene 2 of Romeo and Juliet [ Enter Juliet ] Capulet : How now , my headstrong! Where have you been gadding?” Juliet: Where I have learn’d me to repent the sin Of disobedient

    asked by BUBBLES on May 18, 2016
  37. physics

    During a basketball game, a player flies above the basket and drops the ball in from a height of 10 meters. If the ball takes 4.4 seconds to fall, find the acceleration due to gravity.

    asked by Emily on October 3, 2011
  38. Physics question bout falling

    Objects that are falling toward Earth in free fall move a)faster and faster. b)slower and slower. c)at a constant velocity. d)slower then faster.

    asked by Aisumi on September 29, 2010
  39. jay kay public

    Consider a planet in space whose mass is twice that of earth and radius is thrice that of earth what will be the weight of a body on this planet if its weight on the earth is 900N ??

    asked by adi on December 8, 2015
  40. Physics

    Suppose the density of the Earth was somehow reduced from its actual value to 1300 kg/m3. What would be the value of g, the acceleration due to gravity, on this new planet? Assume the radius does not change. I know that density = mass/volume & the volume

    asked by Anon14 on September 21, 2011
  41. math

    (180.800)+4.560-800

    asked by kaylah on March 17, 2018
  42. physics

    A 12 kg mass on a horizontal friction-free air track is accelerated by a string attached to a 100 kg mass hanging vertically from a pulley as shown. Compare the accelerations when the masses are interchanged, that is, for the case where the 100 kg mass

    asked by naomi on June 3, 2007
  43. math

    Please show me how to solve: At the local ballpark, the team charges $5 for each ticket and expects to make $1,300 in concessions. The team must pay its players $1,800 and pay all other workers $1,500. Each fan gets a free bat that costs the team $3 per

    asked by Jane on December 29, 2011
  44. Physics (help plz)

    A body of mass 20kg is transferred from earth (grams=weight newton kg) to another planet where G=2 Newton kg, 1.Wat is the mass on earth? 2.wat is the wieght on earth? 3.wat is the mass on the other planet? 4.wat is the weight on the other planet?

    asked by Jan on September 16, 2007
  45. Physics

    A body of mass 20kg is transferred from earth (grams=weight newton kg) to another planet where G=2 Newton kg, 1.Wat is the mass on earth? 2.wat is the wieght on earth? 3.wat is the mass on the other planet? 4.wat is the weight on the other planet?

    asked by Jan on September 16, 2007
  46. Physics

    A body of mass 20kg is transferred from earth (grams=weight newton kg) to another planet where G=2 Newton kg, 1.Wat is the mass on earth? 2.wat is the wieght on earth? 3.wat is the mass on the other planet? 4.wat is the weight on the other planet?

    asked by Jan on September 16, 2007
  47. Physics (help plz)

    A body of mass 20kg is transferred from earth (grams=weight newton kg) to another planet where G=2 Newton kg, 1.Wat is the mass on earth? 2.wat is the wieght on earth? 3.wat is the mass on the other planet? 4.wat is the weight on the other planet?

    asked by Jan on September 16, 2007
  48. math

    A body of mass 20kg is transferred from earth (grams=weight newton kg) to another planet where G=2 Newton kg, 1.Wat is the mass on earth? 2.wat is the wieght on earth? 3.wat is the mass on the other planet? 4.wat is the weight on the other planet?

    asked by Jan on September 16, 2007
  49. Physics

    At a distance H above the surface of a planet, the true weight of a remote probe is six percent less than its true weight on the surface. The radius of the planet is R. Find the ratio H/R.

    asked by vanessa on February 23, 2018
  50. science

    2.2. A hot air balloonist, rising vertically with a constant velocity of magnitude 5.00m/s releases a sandbag at an instant when the balloon is 40.0m above the ground as shown. After it is released, the sandbag is in free fall. 1. calculate the position

    asked by LaBoroKa...(LBK) on September 8, 2015
  51. Calculus

    Given: A rock is thrown upward from the surface of a planet at 24m/s. It reaches a maximum height of 180 meters. Question: How fast is the rock falling when it lands on the planet? I am honestly dumbfounded by this problem. I feel that I don't have enough

    asked by Charlene on February 6, 2017
  52. world civilization . NEED HELP ASAP

    What theories have scholars advanced to explain the decline and fall of the Roman Empire? What are the difficulties involved in explaining the fall? What explanation would you give?

    asked by lashay on October 1, 2012
  53. Chemistry

    Imagine that you needed to choose an indicator for the titration of a strong base (like NaOH) with a strong acid (like HNO3). You have the indicators in Table 1 available. Which indicator would you choose? Why? Indicator [HIn] [ In] pKa Maryland Red- Red

    asked by Cris on October 1, 2012
  54. Calculus

    On planet Calculi, acceleration due to gravity is -20 ft/sec^2. A ball is thrown upward with an initial velocity of 40ft/sec from an initial height of 50. a) Write the equation for the height of the ball, s(t), at time t. b) Find the velocity when the ball

    asked by Anonymous on February 19, 2015
  55. astronomy

    so basically Pluto is a planet? basically , yes. There is some controversy about this. Since this is not my area of expertise, I searched Google under the key words "Pluto planet" to get these possible sources:

    asked by singh on May 12, 2007
  56. chemistry

    Can you tell if I'm correct. Which combination in titration has ph=pka and buffer region strong acid-strong base- no to both strong acid-weak base- yes to both weak acid-strong base- yes to both weak acid-weak base- I'm not sure about this one. Can anyone

    asked by poet on November 8, 2010
  57. chemistry

    Can you tell if I'm correct. Which combination in titration has ph=pka and buffer region strong acid-strong base- no to both strong acid-weak base- yes to both weak acid-strong base- yes to both weak acid-weak base- I'm not sure about this one. Can anyone

    asked by poet on November 7, 2010
  58. CHEMISTRY

    The enthalpy of neutralization for the reaction of a strong acid with a strong base is −56 kJ/mol of water produced. How much energy will be released when 198.5 mL of 0.400 M HCl is mixed with 150.1 mL of 0.500 M NaOH?

    asked by Sarah on May 1, 2012
  59. chemistry

    The enthalpy of neutralization for the reaction of a strong acid with a strong base is -56 kJ/mol of water produced. How much energy will be released when 185.0 mL of 0.400 M HCl is mixed with 152.5 mL of 0.500 M NaOH?

    asked by Bill on November 13, 2011
  60. CHEMISTRY

    The enthalpy of neutralization for the reaction of a strong acid with a strong base is −56 kJ/mol of water produced. How much energy will be released when 200.5 mL of 0.400 M HCl is mixed with 149.1 mL of 0.500 M NaOH?

    asked by Sarah on October 10, 2012
  61. science

    3.A rocket launched accelerates at 3.5m/s^2 in 5.90 secs and2.98m/s^2 in the next 5.98 secs and then experiences a free fall. What time will the rocket be in air? Assume that the rocket is launched from the ground.

    asked by mano on July 6, 2016
  62. science

    A rocket launched accelerates at 3.5m/s^2 in 5.90 secs and2.98m/s^2 in the next 5.98 secs and then experiences a free fall. What time will the rocket be in air? Assume that the rocket is launched from the ground.

    asked by Anonymous on September 2, 2013
  63. 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 :)

    asked by Candice on March 10, 2009
  64. Physics

    A 600 N skydiver in free fall is accelerating at -7.6 m/s^2 rather than -9.8 m/s^2 because of the force of air resistance. How much drag force is acting on the skydiver? a)58.2 b)65.3 c)61.4 d)40.2 I use the equation Σ(F)vertical-ma=0 To find m I did:

    asked by I attempted-HELP on December 13, 2015
  65. Physics - Astronomy

    What (decimal) fraction of a hypothetical spherical planet's volume does a planetary core with a radius of 70% of that planet's radius have? Round off answer to three decimal places. [Hint: the volume of a sphere is equal to 4/3 pi times the radius cubed]

    asked by Leslie on November 15, 2012
  66. Chemistry

    A concept map was to be created on acids and bases. The concept terms that were given to use were: aqueous solution,bases,acids,ions,weak bases, strong bases, strong acids, weak acids,dissociation, weak electrolyte, strong electrolyte,reaction,salt,

    asked by Hannah on October 23, 2011
  67. physics

    James (80kg) is performing a bungee jump from a 210m high dam. He has a free fall for 160 meters until the rope starts to extend and stops 1 meter above ground. What is the stiffness of the bungee rope? How much work does the bungee rope perform?

    asked by Marcela on April 9, 2014
  68. chemistry

    Which of the following statements is true about the nucleus? Only the strong nuclear force holds the nucleus together. The strong nuclear force and the residual strong force hold the nucleus together. The presence of neutrons, the strong nuclear force, and

    asked by robstone on May 20, 2015
  69. physics

    a person jumps from a window 15m above a safety net. The survivor stretches the net 1.0 m before coming to rest. What was the average deceleration experienced by the person when they were slowed to rest by the net? I do know the answer is -150m/s2,but I

    asked by Pat Battaglia on September 10, 2006
  70. Physics

    A model rock is shot into the air. Once it starts to fall a parachute is deployed. Draw a free body diagram of the rocket with the parachute deployed ok well there is gravity does the parachute exert a force upward? onto what? what do i call this force?

    asked by Physics on August 28, 2009
  71. science

    The orbital radii of four planets in our solar system are shown in the following table. Orbital Radii Planet Orbital Radii (AU) W 5.2 X 0.72 Y 1.0 Z 19.1 Which planet is likely to experience the highest temperature? W X Y Z I think it is B.x but I am not

    asked by george on May 10, 2018
  72. Physics

    A lukewarm bottle containing 800 grams of water is placed in a refrigerator. How many calories of heat must be removed from that water to chill its temperature from 55 c to 4 c? Q = m(c)(delta t) Q = (100g)(1.0 c/g*c)(51c) = 40,800 Is the answer correct?

    asked by Tracy on March 6, 2012
  73. physics

    An 76 kg satellite orbits a distant planet with a radius of 4500 km and a period of 280 min. From the radius and period, you calculate the satellite's acceleration to be 0.63 m/s2. What is the gravitational force on the satellite?

    asked by Jessica on October 10, 2016
  74. Math

    Chelsea had made six of seventeen free-throw attempts. How many consecutive free throws must she make to raise her percentage of free throws made to exactly 50 percent?

    asked by Tammy on September 30, 2012
  75. phy

    Review. An object with a mass of m 5 5.10 kg is attached to the free end of a light string wrapped around a reel of radius R 5 0.250 m and mass M 5 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing

    asked by Anonymous on January 3, 2013
  76. Physics

    a 4 kg object is taken to a planet that has 3 times the mass of earth and 1/2 the radius of earth. On this planet the mass of the object will be most nearly.. A. 12kg B. 3kg C. 48kg D. 4kg E. 24 kg

    asked by NATHAN on January 5, 2015
  77. eletromagnets

    In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of a free charged particle. A changing magnetic field can, and this is one way particle beams are accelerated. Consider free

    asked by BJ on December 5, 2013
  78. magnetism

    In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of a free charged particle. A changing magnetic field can, and this is one way particle beams are accelerated. Consider free

    asked by manu on December 3, 2013
  79. physics

    In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of a free charged particle. A changing magnetic field can, and this is one way particle beams are accelerated. Consider free

    asked by J.O on December 5, 2013
  80. Physics

    The tops of the towers of the Golden Gate Bridge, in San Francisco, are 227m above the water. Suppose a worker drops a wrench from the top of a tower. If the average force of air resistance is 22% of the force of free fall, with what speed will the wrench

    asked by Danielle on November 6, 2011
  81. Physics Help Urgent

    On a dare, you decide to try bungee jumping. You fall freely you are moving at 15 m/s downward. At that point the cord begins to stretch. The cord slows you to a stop as it stretches, then pulls you back upwards. When the cord is no longer pulling on you,

    asked by Anonymous on September 14, 2014
  82. Physics Help

    On a dare, you decide to try bungee jumping. You fall freely you are moving at 15 m/s downward. At that point the cord begins to stretch. The cord slows you to a stop as it stretches, then pulls you back upwards. When the cord is no longer pulling on you,

    asked by Kim on September 15, 2014
  83. financial management

    Using the following information, prepare a balance sheet for Midsize Corporation: Total Current Assets $11,800,000 Gross Fixed Assets $15,000,000 Cash ? Stockholders' Equity $6,450,000 Inventory $5,800,000 Accrued Expenses $600,000 Accounts payable

    asked by dee on October 4, 2009
  84. Math

    Experience shows that a ski lodge will be full ( 156 guests) if there is a heavy snow fall in December, while only partially full ( 57 guests) with a light snow fall. What is the expected number of guests if the probability for a heavy snow fall is .40? If

    asked by Jackie on January 19, 2010
  85. Chemistry

    Time(seconds) 0 200 500 800 1200 1500 [A in Moles] .184 .129 .069 .031 .019 .016 What is the instantaneous rate of the reaction at t= 800 seconds?

    asked by Kim on February 9, 2012
  86. physics 12

    An 884 kg satellite in orbit around a planet has a gravitational potential energy of -5.44*10^10 J. The orbital radius of the satellite is 8.52*10^6 m and its speed is 7.84*10^3 m/s. A) What is the mass of the planet? B) What is the kinetic energy of the

    asked by adrian on October 8, 2011
  87. physics

    You and your friend are on the roof of a 20 m tall building investigating a free fall. Your friend releases a small rock from rest. You throw another rock simultaneously with your friend aiming it straight down. (a) What initial speed should you supply to

    asked by Jane on September 28, 2014
  88. Physics

    A rocket blasts off vertically from rest on the launch pad with an upward acceleration of 2.30 m/s^2. At 10.0 s after blastoff, the engines suddenly fail, which means that the force they produce instantly stops. How high above the launch pad will the

    asked by Josh on September 16, 2006
  89. Physics

    An object is released from rest. How far does it fall during the third second of its fall?

    asked by Jane on October 26, 2010
  90. physics

    A solid disk pulley of mass 2.00 kg and a radius of 30.0 cm is rotated by a block mass of 0.500 kg falling from rest, a distance of 4.00 m. What is the mass's acceleration and how much time elapses during its fall?

    asked by George on December 20, 2010
  91. Chemistry

    What would the step by step process be to perform titration with a strong base and strong acid? Including the equipment. If someone could explain it in a brief way to me that would be appreciated.

    asked by Gr 11 on December 19, 2016
  92. MATH

    The function s(t) = 16t^2 models the distance, s(t), in feet, that an object falls in t seconds. Find the number of seconds a sky diver is in free fall after jumping from a plane if she falls 192 feet before opening a parachute. Express your answer in

    asked by KE KE on March 30, 2010
  93. Astronomy

    1. In this collection of problems we will try to use what we have learned to see what information about a hypothetical Solar System planet we can extract from observations. The planet, Nursat, is observed to be in opposition every 374 days. Use this

    asked by keitanako on December 9, 2013
  94. physics

    You throw a snowball at an angle of 34.0° below the horizontal from the roof of a building that is 74.0 m above flat ground. The snowball hits the ground a distance of 44.0 m from the base of the building. Assume free fall with up as positive, and use g =

    asked by walter on October 16, 2015
  95. According To My Answers

    You see,my mom didn't have to learn this.And when I showed her the rest of my answers,she told me to post this. So... 0.009 kg = 9000 mg ?? 0.2 mg = 0.0002 g ?? 8.6 kg = 8600 g ?? 800 g = 800 000 mg ?? 1.7 kg = 1700 g ?? She said to post this.She doesn't

    asked by Cheyenne on September 17, 2009
  96. calculus

    Let P(t) represent the number of wolves in a pop. at time t in years, when t is greater than or equal to 0. The pop. P(t) is increasing at a rate directly proportional to 800-P(t), where the constant of proportionality is k. I just want to know if my

    asked by Anonymous on February 23, 2011
  97. Chemistry

    Which of the following is NOT a characteristic of a strong acid and a strong base? A. Has a [H+] higher than water B. Is corrosive to most metals C. Has a pH at the extreme end of the scale D. Completely dissociates in water

    asked by Cherry on August 18, 2016
  98. math

    Karl Malone made 474 out of 621 free throws attempts and John Stockton made 237 out of 287 free throws attempts. a. what fraction benchmark is near the number of free throws made by each player? b. Estimate the percent of free throws made by each player.

    asked by fanny on October 17, 2012
  99. Astronomy

    Suppose that you travel to a planet that has 4 times the Earth's mass and 4 times the Earth's radius. Calculate how much more or less you would weigh on this planet compared to your weight on Earth. Express your answer as a factor or fraction of your

    asked by Rebecca on October 2, 2011
  100. Physics

    The gravitational potential difference between the surface of a planet and a point P, 10 m above the surface, is 8.0 J kg-1. Assuming a uniform field, what is the value of the gravitational field strength in the region between the planet’s surface and

    asked by Christine on January 19, 2011