Recent content by juanandresrua

  1. J

    Is f continuous at (0,0) and how to show it with curves?

    I just did it. Thanks to both.
  2. J

    Is f continuous at (0,0) and how to show it with curves?

    Homework Statement https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/10923273_407123639463753_2874228726948727052_n.jpg?oh=27c882da16071e65bbb420147333ec38&oe=558413E4&__gda__=1434978872_d03c8531060688181560956b68c96650 Is f continuous at (0,0)? What is the "maximum" region D...
  3. J

    Rate of change of the gravitational force.

    Joffan thanks for answering. I made this: https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-xfp1/t1.0-9/10411975_289303221245796_714101699755499906_n.jpg and like https://fbcdn-photos-e-a.akamaihd.net/hphotos-ak-xaf1/t1.0-0/10325761_289303194579132_2412401599182272082_t.jpg Where...
  4. J

    Rate of change of the gravitational force.

    Homework Statement The space shuttle Endeavor is moving at a speed of 27870 Km / h. At takeoff, its mass is 2, 28 * 10 ^ 6 kg, however, its mass decreases as it uses its fuel: the engine burns liquid oxygen which has a density of 1141 kg / m^3, at a rate of 1340 liters per second. Calculate...
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