1. Physics

    1. A dog sits under the only shade tree in its territory. Suddenly the dog desires to dig a previously buried bone. From the tree the dog goes 13 meters at 22.6° north of east. Not finding the bone there the dog then goes 17 meters at 61.9° north of

    asked by Isabel on September 26, 2016
  2. physics

    The velocity of a ball changes from ‹ 8, −5, 0 › m/s to ‹ 7.88, −5.28, 0 › m/s in 0.04 s, due to the gravitational attraction of the Earth and to air resistance. The mass of the ball is 140 grams. I calculated the acceleration and got what is

    asked by sam on June 28, 2014
  3. Astronomy

    The volume of a ball is given in terms of its radius by V=(4*pi/3)*R^3. Use this to find the average density of Nursat, i.e. the mass per unit volume. Use Earth'€™s mass in kg from the Table of Constants to express your answer in kg/m3.

    asked by keitanako on December 9, 2013
  4. sci

    help i am having trouble with these: The three branches and three systems of geology. According to the Nebular Theory, how did the solar system develop? How is uniformitarianism related to the evolution of Earth and the solar system? i know its in my

    asked by troyer0269 on December 13, 2008
  5. physical

    A car is driven east for a distance of 43 km, then north for 25 km, and then in a direction 26° east of north for 26 km. Determine (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's

    asked by alexx on March 11, 2011
  6. Physics

    A car is driven east for a distance of 46 km, then north for 29 km, and then in a direction 29° east of north for 22 km. Determine (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's

    asked by Michael on March 10, 2013
  7. PHY

    A car is driven east for a distance of 43 km, then north for 25 km, and then in a direction 26° east of north for 26 km. Determine (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's

    asked by alex on March 10, 2011
  8. physics

    A car is driven east for a distance of 41 km, then north for 21 km, and then in a direction 30° east of north for 25 km. Determine (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's

    asked by jessica on September 8, 2011
  9. physics

    A car is driven east for a distance of 42 km, then north for 25 km, and then in a direction 31° east of north for 26 km. Determine (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's

    asked by blah on September 18, 2009
  10. physic

    A car is driven east for a distance of 44 km, then north for 25 km, and then in a direction 27° east of north for 28 km. Determine (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's

    asked by keef lam on March 9, 2011
  11. physics

    A car is driven east for a distance of 49 km, then north for 21 km, and then in a direction 30° east of north for 27 km. Determine (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's

    asked by tom on March 10, 2011
  12. physics

    If you walk 3.0 km on a straight road and then find that you are 1.5 km east of your starting point and some unknown distance north of your starting point, in which of these directions did you walk?

    asked by anon on October 25, 2012
  13. life orentation

    1.Identify and describe 3 environmental health that cause ill heath, crises,and or disasters within your community or any other community within South Africa and globally. 2.Critically discuss 10 ways in which the environmental health hazard can impact

    asked by tlou on April 10, 2013
  14. Georgia History

    1. Which of the following describes the Puritans? A) didn't have much success as planters B) made Sunbury into a thriving port*** C) came from the backcountry of Virginia D) came from Pennsylvania by way of North Carolina 2. Georgia’s slave code was

    asked by Sami on September 17, 2016
  15. geography

    Compare and contrast folded mountains to volcanic mountains. How they are alike? How they are different? i got some of it.. Similarities: Both were probably formed from convergent plate boundaries. Difference: Volcanic Mountains - are mountains that form

    asked by leena on July 25, 2013
  16. Physics

    Jessica's weight is 540 Newtons. According to the Third Law, if the Earth pulls on Jessica with a force of 540N, then Jessica pulls on the Earth with a force of 540 Newtons that acts in the opposite direction. However, if Jessica stumbles while

    asked by Anonymous on November 5, 2009
  17. Science

    When are tides in earth's oceans the highest? A. during the moon's waning gibbous phase. B. during the moon's waxing gibbous phase C. when the moon is at a right angle to the sun*** D. when the sun, Earth, and moon are in line

    asked by Angel on February 15, 2016
  18. Philosophy

    Can someone please check my answers if it is right. Thank you! True/False 1. Rosenstand argues that moral subjectivism is an intuitively sound, "live and let live" kind of moral position that is both appealing and socially cohesive. -FALSE 2. For the

    asked by ivy on July 11, 2014
  19. Algebra

    1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: w=Cr -2

    asked by Sue Bonds on August 13, 2011
  20. Classical Mechanics

    Approximate Lake superior by a circle of radius 162 km at a latitude of 47 degrees .Assume the water is at rest with respect to earth and find the depth that the center is depressed with respect to the shore due to the centrifugal force.

    asked by Anonymous on January 25, 2016
  21. Geology

    Isochron Diagrams Page 14 of 17 On the control part of the graph select the Rb/Sr option. Rember that the Half-life of Rb-87 is 48.8 Billion Years. Note that the scale on the horizontal axis is now 10 times greater than the vertical axis. Move the slider

    asked by Anonymous on September 15, 2010
  22. Advanced Maths (Vectors) AQA Level, please help?

    An aircraft have a speed in still air of 400 km/h. A wind is blowing from the south at 80 km/h. The pilot wishes the aircraft to travel due east. Find the direction in which aircraft should be steered and the speed at which it will travel.

    asked by jat on February 12, 2012
  23. physics

    Landing with a speed of 87.7 m/s, and traveling due south, a jet comes to rest in 939 m. Assuming the jet slows with constant acceleration, find the magnitude and direction of its acceleration. Magnitude of acceleration

    asked by martha on September 5, 2012
  24. Elevation and depression

    From the top of a tower 60m high, two ships are seen in a direction due south. The angle of depression of the ships from the top of the tower are 45degre and 30degree. Find the distance between the ships

    asked by Prince on August 17, 2018
  25. Earth Science Regents!!!

    Two students in different parts of New York State measure the altitude of Polaris is above the horizon. The student near New York City finds the angle to be 41 degrees. The student near Massena finds the angle to be 45 degrees. Which state is best

    asked by Laruen on May 25, 2014
  26. Social Studies Check my answers!

    1. Which of the following satements would describe the significance of the battle of kettle creek? A.weapons and horses were taken from the British. B. the back country of georgia remained under patriot control C.the morale of the georgia milita was lifted

    asked by Amber on October 27, 2015
  27. physics

    A truck of mass 2000kg travelling due south collides at an intersection with a car of mass 1200kg travelling due east. The car and truck become entangled and move off to the south-east. The truck driver claims to have been travelling at exactly 60km/hr(the

    asked by Lycra on April 13, 2012
  28. please check(Social studies)

    1.A 2.A 3.B 4.D 5.C 1. Which circumstance had the most direct impact on european colonization of caribbean south america A. The slave trade in africa B. the fur trade in europe C. piracy in the caribbean sea D. rumors of gold in EL Dorado 2. How did global

    asked by bonn on March 14, 2014
  29. calculus

    Carbon-14 is a radioactive substance produced in the Earth's atmosphere and then absorbed by plants and animals on the surface of the earth. It has a half-life (the time it takes for half the amount of a sample to decay) of approximately 5730 years. Using

    asked by j on July 24, 2009
  30. L.A.

    The River 1. I sit on the bank in my special place, 2. Feel the breeze that lifts my hair, 3. And watch the ripples run across the river. 4. It is so peaceful here. 5. Deep enough to justify a fishing pole, 6. Quiet enough for my every thought, 7. The

    asked by Gracious Human on May 13, 2016
  31. PHYSICS

    1. It is believed that in the Archeaneon (2.5-4 billion years ago) the sun’s radiative output was 30% less than it is today. (i) What would the temperature of the sun have been at that time? (ii) At what wavelength would the peak emission from the sun

    asked by HELP! PLEASE! on January 24, 2010
  32. PHYSICS- SCIENCE

    1. It is believed that in the Archeaneon (2.5-4 billion years ago) the sun’s radiative output was 30% less than it is today. (i) What would the temperature of the sun have been at that time? (ii) At what wavelength would the peak emission from the sun

    asked by Sheena on January 23, 2010
  33. Science

    1. It is believed that in the Archeaneon (2.5-4 billion years ago) the sun’s radiative output was 30% less than it is today. (i) What would the temperature of the sun have been at that time? (ii) At what wavelength would the peak emission from the sun

    asked by Sheena on January 23, 2010
  34. SS

    1. Which activity is part of both private and civic life? (1 point) learning about politics voting for a candidate*** going to sports games working at a bookshop 2. Why are elections necessary for good governance? (1 point) Elected officials can be fired

    asked by Check Answers on October 12, 2016
  35. History Social studies

    1. Which activity is part of both private and civic life? (1 point) learning about politics •• voting for a candidate going to sports games working at a bookshop 2. Why are elections necessary for good governance? (1 point) Elected officials can be

    asked by Maria on October 13, 2016
  36. economics

    This table shows the number of labor hours required to produce a digital camera and a bushel of wheat in China and South Korea. Digital Camera Wheat (bushels ) Quantity of Digital Camera Quantity of Wheat China 100 hours 5 hours 90 1800 South Korea 90

    asked by Merna on April 1, 2010
  37. Physics Gravity

    The earth has a mass = 5.98 X 10^24 kg and the sun has a mass = 1.99 X 10^30 kg. They are separated, center to center, by r= 93 million miles = 150 million km. What is the size of the gravitational force acting on the earth due to the sun? Very confused by

    asked by Mike Joseph on June 16, 2012
  38. World History

    Which options accurately describe life events of explorer Jacques Cartier? (select all that apply) A) Cartier established a colony near Roanoke Island in present-day North Carolina. B) Cartier named Canada after the Huron-Iroquois word for settlement,

    asked by jordan on December 16, 2018
  39. history

    a.Which statement about lynchings in the South in the 1890s is true? 1. Lynchings decreased compared to the Reconstruction era. 2. Leaders of lynch mobs tended to come from the wealthy ruling class. 3. Lynchings and acts of violence against blacks

    asked by bre on January 27, 2011
  40. Science

    Two pellets, each with a charge of 1.5 microcoulomb (1.5×10−6 C ), are located 2.8 cm (2.8×10−2 m ) apart. Part A Find the electric force between them.Part B What would be the mass of an object that would experience this same force in Earth's

    asked by Rachel on April 9, 2016
  41. Physics

    The solar radiation incident on the Earth has a power density of approximately 900W/m2. Find the rms value of the electric field. I know that Erms = Emax/squareroot(2) But how can I pass from W/m^2 to electric field?

    asked by Waves - AEC on March 10, 2018
  42. Biology

    Will you please check my answers? 1. Single-celled organisms that do not have a membrane-bound nucleus are called A. organelles. B. prokaryotes. C. Golgi bodies. D. eukaryotes. 2. In cells, a form of active transport is A. a sodium-potassium pump. B.

    asked by Macy on July 12, 2013
  43. Math And Physics

    Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2 Please answer

    asked by Dwayne on May 1, 2011
  44. Earth Science

    Scientists tell us that the Earth is suffering ill effects from ozone depletion and the greenhouse effect. Compare these two phenomenons. What aspects do they have in common? How might they actually help eah other to produce conditions in which humans and

    asked by Jordi on June 14, 2012
  45. Precalculus

    The instruments with an aircraft show that it is headed east with an airspeed of 180 mph. After 2 hours, the aircraft is actually 375 miles east and 20 miles north of its starting point. Find the wind speed and its direction.

    asked by Merry on March 27, 2017
  46. calc 3

    A woman walks due west on the deck of a ship at 4 mi/h. The ship is moving north at a speed of 15 mi/h. Find the speed and direction of the woman relative to the surface of the water. (Round your answers to one decimal place.)

    asked by abby on September 1, 2012
  47. Algebra-Check my answer please!

    The Great Galaxy in Andromeda is about 2200000 light years from Earth. Light travels 5900000000000 miles in a year. How many miles is the Great Galaxy in Andromeda from Earth? I got 1.298* 10^20 miles. (This is the exponents unit)

    asked by Lucina on December 31, 2014
  48. math

    Chicago, Illinois has a longitude of 88 degrees West and a latitude of 42 degrees North. Indianapolis, Indiana is located at 86 degrees West and 40 degrees North. At this longitude/latitude, each degree is about 53 miles. What is the distance between

    asked by Sammi on January 23, 2012
  49. earth

    Some people have proposed building a giant elevator from Earth's surface to geosynchronous orbit. The top of the elevator would then have the same orbital distance and period as any satellite in geosynchronous orbit. Suppose you were to let go of an object

    asked by kendra on October 7, 2011
  50. gr 12 physics

    A person standing at the edge of the water and looking out at the ocean/ The height of the person's eyes above water is h=1.6m. and radius of the earth is R=6.38x10^6m How far is it to the horizon. In other words, what is the distance d from the person's

    asked by fan on September 13, 2010
  51. Int. science

    Which of the following is an example of a cycle theme in science? seasons electrons and protons the solar system relationship between plants and animals

    asked by Mclovin on October 2, 2014
  52. Chemistry

    15. When chromium loses two electrons, its configuration changes to A. [Ar]4s1. B. [Ar]3d4. C. [Ar]4s13d5. D. [Ar]4s13d4. I'm guessing it's B but I just want to double check

    asked by Hannah on August 7, 2013
  53. chem

    what is the symbol for the element that has 78 protons 76 electrons 117 neutrons and a +2 net charge? i thought it was ^195Os^+2 but that is wrong. Thanks for the help!

    asked by sara on August 25, 2012
  54. chemistry

    Silver is electroplated at the cathode of an electrolysis cell by the half reaction Ag+(aq) + e- --> Ag(s) How many moles of electrons are required to electroplate 5.8g of Ag?

    asked by Monique on November 26, 2011
  55. chemistry

    How many dots should be indicated in the electron dot structure of arsenic? How many electrons are in the highest energy orbital of the element copper?

    asked by Ciaria on March 4, 2015
  56. Science

    smallest unit that consists of at least one atom A. Protons B. Neutrons C. Electrons D. Molecules Im thinking D but im not sure i don't remember.

    asked by Sara on September 24, 2014
  57. Chemistry

    How many electrons can be described by the quantum numbers n = 2, l = 1, ml = -1? a.) 2 b.) 14 c.) 6 d.) 10 e.) 0 I thought it was 6 but here's my reasoning n = 2 energy levels l = 1 (p orbital) ml = -1 (I don't think this is relevant to the question?)

    asked by Annie on November 15, 2014
  58. CHemistry

    Which one of the following is expected to be the strongest Lewis acid? Fe, Fe+, Fe2+, Fe3+ Which do you think would accept electrons the easier? Fe(s) or Fe^+? Do that same kind of logic on the others one by one.

    asked by Joel on April 27, 2007
  59. Physics

    Calculate the net charge on a substance con- sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer in units of C.

    asked by Maria on March 8, 2011
  60. Science

    How does one substance become positively and other other negatively? It's about static electricity. I know when you rub two objects together, one will become positive and the other will become negative but how? Does it lose electrons..?

    asked by Thie on March 6, 2015
  61. Physics

    Calculate the net charge on a substance con- sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer in units of C.

    asked by Maria on March 8, 2011
  62. science

    describe the relationship between an element's placement in the periodic table and the number of electrons in its outermost energy level

    asked by j on January 10, 2010
  63. Chemistry

    The part of an electrochemical cell that carries electrons to a reacting ion is a(n) (1) cathode (2) anode (3) electrode (4) electrolyte

    asked by Brian on April 22, 2014
  64. chemistry

    what is the angular momentum quantum number for the orbital from which an Mg atom loses two electrons to form Mg2+ ion.

    asked by kb on July 20, 2011
  65. Chemistry - Coordination Complex

    Determine the number of unpaired electrons expected in terms of crystal field theory: a) [Fe(NO_2)_6]^3− b) [Fe(H_2O)_6]^3+

    asked by Annie on March 30, 2018
  66. Chemistry

    List the sets of quantum numbers which describe all of the electrons possible in a 6p wave function (orbital): I'm really having trouble figuring this out!

    asked by Nicole on November 30, 2011
  67. electron configuration shorthand method?

    I missed school today so the hw is a bit confusing and I have a quiz on this tmr. For example I have Br which has 35 electrons. [Ar]_______ and then what do I do? How do I know what to put next? how would you do Phosphorus? thanks!

    asked by skye on February 14, 2012
  68. Chemistry

    Need help with these--- 28. Alloys are a. elements b. compounds c. mixtures 38. Alpha rays are really a. electrons b. helium nuclei c. electromagnetic waves Thanks -MC

    asked by mysterychicken on October 30, 2010
  69. Chemistry

    Determine the total number of electrons transferred in the following balanced reaction. 4 MnO4– (aq) + 12 H3O+ (aq) → 4 Mn2+ (aq) + 5 O2 (g) + 18 H2O (g)

    asked by Ally on August 9, 2010
  70. Physics

    Calculate the net charge on a substance con- sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer in units of C.

    asked by Maria on March 8, 2011
  71. Physics

    A typical lightning flash delivers about 27C of negative charge from cloud to ground. How many electrons are involved?

    asked by D'Andre on June 15, 2011
  72. Science

    hi i have a science exam on tuesday and i don't understand this question and really need some help. How many electrons, protons and neutrons in the following: a)Br1- b)Be2+ c)Ne d)P1- e)Fe

    asked by Jess D on March 21, 2008
  73. Science

    During beta-particle emission, a neutron splits into _______? a proton and an electron two protons two electrons two neutrons

    asked by Samantha on February 14, 2012
  74. chem

    in the ground state electron configuration of Fe3+, how many unpaired electrons are present? I thought it was 1, but im getting a wrong answer.

    asked by natash on November 2, 2008
  75. physics

    If we wanted a block of iron of mass 3.25 kg to acquire a positive charge of 0.100 C, what fraction of the electrons would we have to remove?

    asked by anna on September 12, 2012
  76. chemistry

    Calculate the free energy change of the following reaction (in kJ). 3A^2+ +2B------->3A + 2B^3+ Ecell= 1.66 -(5 mol)*(9.65*10^4)*1.66= -8.0095*10^5 Did I do it right? or is the number of electrons wrong?

    asked by i just need to know if im doing it right or not on December 10, 2017
  77. Chem

    What 4 quantum numbers describes one of the outermost electrons in a strontium atom in ground state? 5,0,0,1/2 Is my answer correct?

    asked by Lena on July 8, 2009
  78. History

    Hello can anyone help me with this question . It will be greatly appreciated . analyze an economic and political activity in the Caribbean South America since its independence. Include at least one example os an economic activity and one example of a

    asked by ... on February 6, 2017
  79. PHYYYYYSICS 4

    A plane points its nose due north and flies at a speed of 71 m/s relative to the air. The plane enters a strong wind that blows at a speed of 23 m/s due west relative to the ground. What is the angle of the plane's trajectory according to an observer

    asked by Carissa on September 18, 2014
  80. science

    write an account that considers what conditions would be required on an earth-like extrasolar planet for the carbon based life to evolve. In your answer you must keep in mind what is thought to have happened on earth, and you must: according to this i have

    asked by kat on May 19, 2007
  81. social studies PLEASE CHECK

    1. which is an event of the progressive era enacted by the local government in South Carolina? a. the first grange chapter was established for farmers b. the grandfather clause gave poor whites the right to vote c. blacks were disfranchises through a poll

    asked by what on May 7, 2014
  82. Social Studies

    Here ya go Ms. Sue 1:Place the following events in order. The Battle of Yorktown begins. The Continental Congress meets in Philadelphia. The Declaration of Independence is signed. The French and Indian War ends. 2:Which of the following are the leading

    asked by Mattt on October 14, 2018
  83. History

    Almost from the beginning of his administration, Lincoln was pressured by abolitionists and radical Republicans to issue an Emancipation Proclamation. In principle, Lincoln approved, but he postponed action against slavery until he believed he had wider

    asked by Anonymous on December 18, 2018
  84. physics

    Two bicyclists, starting at the same place, are riding toward the same campground by two different routes. One cyclist rides 1100 m due east and then turns due north and travels another 1430 m before reaching the campground. The second cyclist starts out

    asked by Anonymous on September 2, 2010
  85. Physics

    1.) The earth's radius is about 3956.52 mi. An object that has a mass of 20 kg is taken to a height of 160 km above the earth's surface. a. What is the mass of the object at this height? b. How much does the object weigh at this height?

    asked by YESHA on August 22, 2014
  86. IPC

    The value of acceleration due to gravity (g) on a point 10,000 kilometers above sea level is about 1.49 meters/second2. How much will an object, which weighs 98 newtons on the surface of Earth, weigh on this point? The value of acceleration due to gravity

    asked by sam on January 11, 2017
  87. Physics

    The value of acceleration due to gravity (g) on a point 10,000 kilometers above sea level is about 1.49 meters/second2. How much will an object, which weighs 98 newtons on the surface of Earth, weigh on this point? The value of acceleration due to gravity

    asked by Dave on July 4, 2012
  88. Math

    The ratio of South American butterflies to European butterflies is 3:2. There are 18 South American butterflies at the park. How many European butterflies are there?

    asked by Makenzey on November 18, 2014
  89. physics question

    Due to electric effects on the earth and in the atmosphere, there is an electric field near the earth's surface that points down. Assuming the electric field is uniform with a magnitude of 150 N/C, what charge would a 145g baseball need to float as though

    asked by anonymous on February 22, 2018
  90. Physics

    A spy satellite is in circular orbit around Earth. It makes one revolution in 6.01 hours. (a) How high above Earth's surface is the satellite? [Answer in Km] (b) What is the satellite's acceleration? [Answer in m/s^2] I see this posted over and over again

    asked by Brenda on September 29, 2012
  91. physics

    A satellite with a mass of ms = 7.00 × 103 kg is in a planet's equatorial plane in a circular "synchronous" orbit. This means that an observer at the equator will see the satellite being stationary overhead (see figure below). The planet has mass mp =

    asked by Anonymous on October 17, 2013
  92. History

    (PLEASE ANSWER ASAP) Which of these actions did President Lincoln take at the beginning of the Civil War? Answers: He declared martial law throughout the nation. He imprisoned congressional representatives from the South. He issued a declaration of war

    asked by T on March 1, 2018
  93. Chemistry

    a) How many moles of atoms are in 7.00 g of 13C? Answer "0.538" mol 13C b) Based on your answer in Part A, calculate the number of atoms in this amount of 13C? Answer "3.24×10^23" 13C atom c) Based on your answer in Part B, how many electrons are in this

    asked by katie on August 25, 2018
  94. physics

    Two racing boats set out from the same dock and speed away at the same constant speed of 119 km/h for half an hour (0.500 h), the blue boat headed 26.8° south of west, and the green boat headed 41.4° south of west. During this half-hour (a) how much

    asked by molly on September 28, 2015
  95. physics

    At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 0.20%? At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 2.0%? At what height above Earth's

    asked by lizbeth on March 10, 2016
  96. physics

    At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 0.20%? At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 2.0%? At what height above Earth's

    asked by please help on March 11, 2016
  97. Physics

    A plane flies from base camp to lake A, a distance of 300 km at a direction of 20.0° north of east. After dropping off supplies, the plane flies to lake B, which is 210 km and 30.0° west of north from lake A. Graphically determine the distance and

    asked by James on September 11, 2011
  98. alegebra

    1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on Earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where

    asked by linda on September 13, 2010
  99. Maths

    an astronaut is to be fire into an elliptical orbit about the eathr having a minimum altitude of 800km and maximum altitude of 5400km find the equation of the curve followed by the astronaut cosider the radius of the earth to be 6400km

    asked by Anonymous on January 6, 2019
  100. Physics

    A man walks the distance of 8km in a direction of 20degrees east the walks another 6km in a direction 50degrees south east. Using vector diagrams find the magnitude and direction of the final displacement relative to the starting point.

    asked by Tom on October 5, 2016