Recent content by Ecterine

  1. E

    Understanding Newton's Law of Universal Gravitation

    Fg=(6.67x10^-11 N x 1.99x10^30kg / kg2) (7.933 x 10^46) :(
  2. E

    Understanding Newton's Law of Universal Gravitation

    K, so now for a better question! Fg=G(5.98x10^24kg x 1.99x10^30kg / 150,000,000 km) Fg=G(7.933 x 10^46)Am I on the right track? What do I do with the G? I know that the gravitational constant G has a value G=6.67x10^-11 N x m2/kg2 If I plug the mass of the sun in as m2 it is...
  3. E

    Understanding Newton's Law of Universal Gravitation

    Wait... I just realized how stupid of a question that is. Why do I do this when I'm so tired?
  4. E

    Understanding Newton's Law of Universal Gravitation

    "Consider the Earth following its nearly circular orbit about the sun. The Earth has a mass mearth=5.98x10^24kg and the sun has mass msu=1.99x10^30kg. 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...
  5. E

    Calculating Flight Time for Birds in Windy Conditions

    Thank you! I completely missed that. I hope you guys can count the time you spend here as volunteer experience, everyone is so helpful!
  6. E

    Calculating Flight Time for Birds in Windy Conditions

    Canadian geese migrate essentially along a north-south direction for well over a thousand kilometers in some cases, traveling at speeds up to about 100 km/h . If one such bird is flying at 100 km/h relative to the air, but there is a 42.0 km/h wind blowing from west to east. Part A) At what...
  7. E

    Throwing a Ball Horizontally from a Building: Physics Analysis

    A ball is thrown horizontally from the top of a building and lands a distance d from the foot of the building after having been in the air for a time T and encountering no significant air resistance. If the building were twice as tall, the ball would have a) landed a distance 2d from the...
  8. E

    What is the Minimum Speed for a Diver to Clear a Cliff Ledge?

    So instead... 1.50 = vx0 * 2.14 (divide both sides by 2.14) .700 It didn't work... :/ I'm really not good at this
  9. E

    What is the Minimum Speed for a Diver to Clear a Cliff Ledge?

    A daring swimmer dives off a cliff with a running horizontal leap, as shown in the figure. http://smg.photobucket.com/albums/v113/apotheothenai/?action=view&current=1011380A.jpg Part A) What must the diver's minimum speed be just as she leaves the top of the cliff so that she will miss...
  10. E

    Solving Vector Division: Breaking Down the "12 Left" Answer

    Thank you... I have a feeling that this class isn't going to go well for me. :/
  11. E

    Solving Vector Division: Breaking Down the "12 Left" Answer

    The question is: Vector b/a=_____ I guessed a few times (losing a point each time it was wrong) and finally got the answer. The answer is: 12 left The site (it's online homework) then gave this explanation: "To the driver of the Audi, the Buick appears to be moving to the left and...
Back
Top