1. Physics

    When out in space in International Space Station (ISS), Astronauts experience weightlessness. The ISS’s orbit is 354 km (that is 3.54 x 105 m) above the surface of the earth (You can get more educational NASA resources from: The distance separating the
  2. PHYSICS

    Mars rotates slowly about its axis, the period being 687 days. The mass of mars is 6.39 x 10^23 kg. Determine the radius for a synchronous satellite in orbit around Mars. (assume circular orbit)
  3. physics bobpursly help still having trouble

    A satellite in a circular orbit around earth with a radius 1.019 times the mean radius of the earth is hit by an incoming meteorite. A large fragment m=60 kg is ejected in the backwards direction so that it is stationary with respect to the earth and falls
  4. physics

    1. The physics of Mars and its two moons. Mars has two moons, Phobos and Deimos (Fear and Panic, the companions of Mars, the god of war). Deimos has a period of 30 h, 18 min and a mean distance from the centre of Mars of 2.3 x 104 km. If the period of
  5. earth

    if the radius of the earth's orbit around the sun is 93,000,000 miles, what is the speed of the earth in it's orbit in miles per hour?
  6. Physics

    Two satellites S1 and S2 orbit around a planet P in circular orbits of radii r1 = 5.25 106 m, and r2 = 8.60 106 m respectively. If the speed of the first satellite S1 is 1.65 104 m/s, what is the speed of the second satellite S2? m/s
  7. College Physics

    An artificial satellite is moving in a circular orbit with a speed of 6.5 km/s and a period of 80.0 min. A retarding rocket fires in a direction opposite to the motion. This provides a retarding deceleration of 21.0 m/s2. What is the acute angle between
  8. trig

    A surveillance satellite circles the earth at a hight of h miles above the surface. Suppose that d is the distance, in miles, on the surface of the earth that can be observed from the satellite. find an equation that relates to central angel (theta) to the
  9. Math

    The path of a satellite orbiting the earth causes it to pass directly over two tracking stations A and B, which are 35 mi apart. When the satellite is on one side of the two stations, the angles of elevation at A and B are measured to be 87.0° and 84.2°,
  10. PLEASE HELP FINAL PROBLEM ORBITAL

    A 3300kg satellite is traveling 3550 km above the Earth's surface. Calculate the velocity and period of the satellite. THANK YOU VERY MUCH!!!!
  11. PHYSICS FINAL (orbital)

    A 3300kg satellite is traveling 3550 km above the Earth's surface. Calculate the velocity and period of the satellite. THANK YOU VERY MUCH!!!!
  12. physics

    calculate at what height above the earths surface a satellite must be placed if it is to remain over the same geographical point on the equator of the earth. what is the velocity of the satellite?
  13. Physics

    A 620 kg satellite orbits the earth where the acceleration due to gravity is 0.233 m/s^2. What is the kinetic energy of this orbiting satellite?
  14. geometry (help steve)

    A circle of radius 1 is drawn in the plane. Four non-overlapping circles each of radius 1, are drawn (externally) tangential to the original circle. An angle γis chosen uniformly at random in the interval [0,2π). The probability that a half ray
  15. Physics

    When we say that the weight of an object is Mg, and that g = 9.8 N/kg, what assumptions are we making? Which of the below? The distribution of mass in the earth is spherically symmetric. The density of the earth is the same everywhere. The earth's interior
  16. Physics

    When we say that the weight of an object is Mg, and that g = 9.8 N/kg, what assumptions are we making? Which of the below? -The distribution of mass in the earth is spherically symmetric. -The density of the earth is the same everywhere. -The earth's
  17. Physics

    Use the following numbers for this question. MEarth 5.98e+24 kg MJupiter 1.9e+27 kg MSun 2e+30 kg Earth-Sun distance 150000000000 m Jupiter-Sun distance 778000000000 m rE 6380000 m rJ 69000000 m G = 6.67e-11 Nm2kg-2 the acceleration due to gravity at the
  18. Physics - Geostationary Satellite

    Why must a geostationary satellite orbit over the equator?
  19. Physics - Satellite Motion

    Calculate the acceleration of two different satellites that orbit Earth. one is located at 2.0Earth radii and the other located 4.0Earth radii.
  20. Physics Homework

    Consider problem U concerning the geosynchronous satellite of mass 50 kg. It orbits at a radius of 42,300 km with a speed of 3076 m/s. a) How much energy is needed to lift the satellite from the earth's surface (Re=6,370 km) up to that radius? b) How much
  21. math

    A vector can be used to represent the path of a drill tip used to bore a deep mine shaft in Sudbury one quarter of the way to the centre of the Earth. Represent the vector using a directed line segment and Cartesian co-ordinates and describe which
  22. Art

    I left out the following sentences, Writeacher. Thank you. 1) After that we’re having dinner (better we’ll have dinner) and after that we’ll go for a walk in the city centre. 2) On the next day we’ll first go on a sightseeing tour of (in ) the
  23. Physics

    A satellite has an orbit with pedigree 175 km and apogee 181,200 km. What is the period of the orbit? >>I'm not sure what the associated equation is. I tried the problem using the average radius in the period equation but it didn't work. Please help!
  24. Physics HELLLPPPP

    When we say that the weight of an object is Mg, and that g = 9.8 N/kg, what assumptions are we making? Which of the below? -The distribution of mass in the earth is spherically symmetric. -The density of the earth is the same everywhere. -The earth's
  25. Science

    What is the circular velocity of an Earth satellite 1000. km above Earth's surface? (Note: Earth's average radius is 6371 km.)
  26. college

    A newly discovered planet is found to have a circular orbit, with a radius equal to 11 times the radius of Earth's orbit. How long does this planet take to complete one orbit around the Sun?
  27. 12th grade physic

    Q. A satelite is in a circular orbit around the earth with a period of 6.0 hours. A retrorocket thruster is fired which slows the satelite down to half its speed and places it in a new orbit. G = 6.67 x 10 power of -11 N.m2/kg2 mass of earth = 5.98 x10
  28. Summer School Calculus

    I don't know how to answer this: A vector can be used to represent the path of a drill tip used to bore a deep mine shaft in Sudbury one quarter of the way to the centre of the Earth. Represent the vector using a directed line segment and Cartesian
  29. physics

    A radar antenna is tracking a satellite orbiting the earth. At a certain time, the radar screen shows the satellite to be 118 km away. The radar antenna is pointing upward at an angle of 58.2 ° above the ground. Find (a) the x and (b) the y components (in
  30. physics

    A radar antenna is tracking a satellite orbiting the earth. At a certain time, the radar screen shows the satellite to be 181 km away. The radar antenna is pointing upward at an angle of 66.2 ° above the ground. Find (a) the x and (b) the y components (in
  31. earth

    Suppose a geologist is studying two distinct areas next to a spreading ridge. The magnetic direction of the minerals in the oldest area is opposite to the magnetic direction of minerals in the newest area. (a) Which area is closest to the centre of the
  32. Physics

    A) the earth year is 365.25 days long. How long would our year be if earth followed the same orbit, but was only the mass of Mars? Answer this in earth days. B) How long would our year be if earth were the same mass, but had the orbital distance of mercury
  33. science

    What universal force is primarily responsible for keeping satellite in orbit around earth? Answers are electromagnetic force, strong nuclear force, gravitational force, weak nuclear force. Thank you
  34. physics

    a body of mass 1kg on the equator rotates about the axis of the earth with a period of 1 day. (mass of earth = 5.98x10^24kg n may b assumed to b concentrated at its centre n radius of earth = 6380km) first question asks to calculate gravitational force of
  35. math

    Calculate the speed of an artificial earth satellite, assuming that it is travelling at an altitude h of 140 Km above the surface of the earth where g=9.8m/s2. The radius of earth R is 6373Km.
  36. Physics

    A semi- trailer truck (seen from back) of mass M is negotiating a right hand curve on a level highway, The constant speed of the truck is v and the radius of curvature of it's circular trajectory is R. The road exerts normal forces on the trucks tires F1,
  37. inscribed angles

    A satellite, B is 17,000 miles from the horizon of Earth, Earth's radius is about 4,000 miles. Find the approximate distance the satellite is from the Earths surface. possilbe answers 13,464 17,464 20,957 21,000 I do not understand how to do these problems
  38. Physics

    In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016 and a radius of 8.50 . What is the speed of a satellite orbiting 4.70km above the surface? What is the escape speed from the asteroid?
  39. Phsyics

    In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016 kg and a radius of 8.50 km. What is the speed of a satellite orbiting 4.70 km above the surface? What is the escape speed from the
  40. Physics(Please help)

    A satellite of mass 500kg orbits the Earth in a circular path with radius 1.0e^7 m . 1) What is the period of the satellite? I know that the equation is T= 2(pi)r^3/2 / sqrt GmE mE = 5.98e^24 does G = 6.67e^-11 ??
  41. Physics

    In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016 and a radius of 8.50km . What is the speed of a satellite orbiting 4.70km above the surface? What is the escape speed from the asteroid?
  42. As Physics

    Use the equations below: P=mv Ek=1/2mv^2 4) A wooden target of mass 2.00kg is suspended from a branch so that it swings freely. The target is hit by an arrow of mass 0.10kg travelling horizontally and the arrow embeds itself in the centre of the target.
  43. chemistry

    which orbitals have centre of symmetry
  44. math

    how the distance between centre of circle if: x^2+y^2+2x-2y-11=0 and x^2+y^2-4x+6y-17=0
  45. Physics

    A small disc of mass 0.7 kg is attached to a string on a frictionless table top. The string passes through a small hole in the centre of the table and is attached to a mass of 0.68 kg suspended below the table and above the floor. The disc can thus move in
  46. Physics

    A CsCl (cesium chloride) salt crystal is built from the unit cells shown in the figure below. Cl− ions form the corners of a cube and a Cs+ ion is at the centre of the cube. The edge length of the cube, which is called the lattice constant, is 0.4
  47. As physics

    Use the equations below: P=mv Ek=1/2mv^2 4) A wooden target of mass 2.00kg is suspended from a branch so that it swings freely. The target is hit by an arrow of mass 0.10kg travelling horizontally and the arrow embeds itself in the centre of the target.
  48. algebra

    the formula d=(square root)12,800+h^2 gives the distance d in kilometers to the horizon from a satellite h kilometers above Earth.Find the distance to the horizon to the horizon from a satellite 4200 km above Earth. Round to the nearest kilometer. PLEASE
  49. Physics

    I have a question about the International Space Station-Its been orbiting earth at 350km-If the radius of the earth is 6,370 km, what is the period of orbit for the Space Station? Secondly, if it was moved to a geosynchronous orbit, what would the new
  50. maths

    the centre of a circle is (2x-1,3x+1). find the x if the circle is passes thuthe centre of a circle is (2x-1,3x+1). find the x if the circle is passes through (-3, -1) and the length of its diameter is 20 units.gh (ro-3, -1) and the length of its diameter
  51. physics

    There is a typo in this question. Ignore the ”cdot” in the units for G. A satellite is in a circular orbit just above the surface of the Moon. What is the satellite’s acceleration? The value of gravitational constant is 6.67259 × 10−11
  52. science

    An earth satellite in an elliptial orbit moves with a) slower speed as it ages b) none of the above c) constant speed d) faster speed as it ages Just need to know if my answer or right or wrong. Thanks! :) b or d but im strongly going for D but i could be
  53. science help

    Which of the following sets of characteristics describe what we know about the dwarf planets? Orbits the sun, has sufficient mass to assume a nearly round shape, and lacks the gravity to clear items near its orbit. Has sufficient mass to maintain a round
  54. Physics

    A satellite sitting on the ground has a weight of 5000 N. When it is placed in orbit 500 km above the surface of the Earth (which has a radius of 6380 km), which choice best describes its weight? Very small but slightly greater than zero. Zero. Still 5000
  55. Physics - Center of Mass

    A square aluminum plate (volume mass ρ = 2700 kg/m^3) has dimension L = 4.8 m and e = 0.9 m. A cylinder of radius R = 1.5 m and at a distance d = 1.2 m from the center of the plate and at 20 deg with the horizontal, is removed from the plate. Find the
  56. Maths

    the centre of circumscribing the quadrilateral whose sides are 3x+y=22,x-3y=14 and 3x+y=62.
  57. Physics

    Which of the following is the equation of the circle with centre (-1.5, 0.5) and radius 3? A. 2x^2 + 6x + 2y^2 - 2y - 13 = 0 B. 2x^2 - 6x + 2y^2 + 2y - 13 = 0 C. 2x^2 - 6x + 2y^2 - 2y - 13 = 0 D. 2x^2 + 6x + 2y^2 - 2y - 23 = 0 E. @x^2 + 6x + 2y^2 - 2y -14
  58. mathematics

    equation 2x-3y=10 touches the circle with centre m (-2,4)
  59. kagzi

    while having a take off , where the centre of gravity of a jumper is situated?
  60. french

    Je Suis Allee A Le Centre Commercial
  61. maths

    What is the centre of the equation 4x^2 9y^2 - 32x 36y 11
  62. physics

    The gravitational field strength at 35700km above earth is .225N/kg. what is the tangental velocity of a 100000kg communication satellite? mass of earth = 5.98E24kg and radius of earth = 6.37E6m
  63. Trigonometric functions

    a pendulum swings back and forth taking 2 seconds to move from the position directly above from point a to the position directly above point b, as shown in the figure below. the distance form a to b is 20 cm. let d be the horizontal distance from her
  64. physics

    (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth (r>Re), where Re is
  65. physics

    (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth (r>Re), where Re is
  66. Physics 12

    I've been doing alot of extra questions for physics lately, and these four are still giving me trouble. Please help me out and help me solve them, including Free Body Diagrams if possible. 1. If a curve with a radius of 60m is properly banked for a car
  67. physics

    Which of these cannot occur? A) A satellite orbiting about the equator.B) A satellite orbiting about the Earth's poles.C) Actually all these can occur.D) A satellite orbiting about the Arctic Circle.
  68. English

    Thank you very much. Here are some mor sentences on the same theme I'd like you to check. 1) They are residents of a state residential treatment centre for juveniles who have committed major property offences (synonym) and crimes against people. 2) Paul
  69. Physics please help!!

    A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 2.23 hours. What is density of the planet? Assume that the planet has a uniform density.
  70. Geometry

    Eratosthenes knew that in Aswan the sun was directly overhead at noon on the summer solstice. At the same time, he measured the angle of the sun to a vertical line in Alexandria. He found this angle to be one(1/50) fiftieth of a circle a. What was
  71. Physics

    A proposed interstellar space vehicle comprises an accommodation unit of mass 690 Tons at the front, separated by a light tube between the individual centres of mass, which is 43m. The amount of seperation is necessary to reduce levels (from the nuclear
  72. Physics

    A satellite orbits the Earth with a radius of 7000km. The acceleration of gravity at this distance=8.17m/s/s. How do I find the velocity of the satellite? I'm really struggling with finding the correct formula. I know the answer but can't figure out how to
  73. Physics

    A hoop of radius 1.4 m and mass 11.5 kg has a small ball stuck to its inside surface. The ball has a radius of one quarter that of the hoop, and twice the hoop’s mass. The hoop may roll freely, without slipping. Similarly, the ball may roll along the
  74. Physics Urgent!!

    A day on Mars is 24.6 Earth hours long. A year on Mars is 687 Earth days long. How do the angular velocities of Mars’ rotation and orbit compare to the angular velocities of Earth’s rotation and orbit? w(M)/w(E)= and w(My)/w(Ey)= w is what I used to
  75. Math

    Completely bemused, do not know how to get the answer. a)8π b)7√2 c)27√π d)7√×7√×1 13- Determine the exact total surface area of a sphere with radius 2√2 metres. a) An inverted cone with side length 4 metres is
  76. English

    I’m at the tourist centre in Boston the speakers tone can best be described as
  77. maths

    Given the equation of an ellipse as 5x^2+3y^2-15=0 find the centre and foci
  78. geography

    why environment educational centre should placed near township houses
  79. math

    how to find circum centre of a triangle when three coordinates are given
  80. math

    Find the centre of the circle that passes through the points p(-9,5), q(1,5), and r(-2,-2)
  81. maths

    of 2 chords the 1 which is nearer to the centre is larger.proof
  82. math

    state the corrdinates of the centre of the circle described by the equation. x^2+y^2=R^2 please help!
  83. maths

    given the following equation for a circle x^2-8x+y^2+4y+11=0 find its centre and radius
  84. Antarctica

    information and diagrams of a scientific research centre
  85. physics

    What is the net flux through the surface when charge is at the centre?
  86. physics

    How can we determine the centre of mass of a hollow sphere?
  87. Physics

    If you suddenly multiplied the mass of Earth by a factor of 4, how would the period of a satellite change, if the radius of its orbit did not change? 4 times as long 1/4 as long 2 times as long 1/2 as long Unchanged
  88. Foreign languages

    I urgently need you to revise these sentences. Thank you very much, Writeacher. 1) We are leaving for Rome tomorrow morning at 7.30 am. 2) We are meeting at the entrance of the bypass (ring road/orbital road) at 7.15 3) The bus journey will last about six
  89. Physics

    Show that the total mechanical energy of a satellite (mass m) orbiting a distance r from the center of the Earth (mass M-e)is: -(1/2)*(G m M-e)/(r if U = 0 at r = infinity. Show that although friction causes the value of E to decrease slowly, the kinetic
  90. physic

    In an accidental explosion, a satellite breaks in half while in circular orbit about Earth. One half is brought momentarily to rest. What is the fate of the half brought to rest? What happens to the other half?
  91. Physics

    In an accidental explosion, a satellite breaks in half while in circular orbit about earth. One half is brought momentarily to rest. What is the fate of the half brought to rest? What happens to the other half?
  92. ITT

    In an accidental explosion, a satellite breaks in half while in circular orbit about earth. one half is brought momentarily to rest. what is the fate of the half brought to rest? what happens to the other half?
  93. college physics

    A space shuttle is in a circular orbit at a height of 250km, where the acceleration of Earth’s gravity is 93% of its surface value. What is the period of its orbit?
  94. Maths

    A circle has its centre on x axis and passes through(5,1) And (3.4). Find its equation.
  95. maths

    A circle x^2 + y^ + 2x - 2y -1 = 0 expressed in the following form (x-h)^2 + (y-k)^2 = r^2 where h, k are the coordinates of the centre. How is r the radius given?
  96. mathematics

    find the equation of a circle with centre (2,-3)and radius 2 unit
  97. maths

    what is the pros and cons of locating a business in City Centre
  98. MATHS

    Q) Find the coordinates of the centre of a circle that passes through points (7,2), (2,3), and (-4,-1)
  99. math homework

    give the coordinates of the circles centre and its radius (x-7)^2 + (y+4)^2 = 16
  100. math

    AB os a diameter of a circle with centre at origin.what are the cootdinates of B if coordinate of A are(3,-5)