Recent content by carney

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    Calculating Halley's Comet Period and Next Approx. Viewing Date

    thats a very bad assumption. they orbit the sun and i can just look that value up. but using what I've been given and only those values is it possible to work this question out?
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    Calculating Halley's Comet Period and Next Approx. Viewing Date

    i just assumed from the question that it was orbiting earth.
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    Calculating Halley's Comet Period and Next Approx. Viewing Date

    Homework Statement Halley’s Comet passed perihelion on 9 February 1986. It has a semi-major axis a = 17.96 AU and eccentricity e = 0.9673. (One astronomical unit (AU) is the distance between the Earth and the Sun.) Calculate the period of Halley’s Comet and the approximate date on which you...
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    How Is Tension Calculated in a Pendulum String at 45 Degrees?

    The mass of the ball is m, as given below in kg. It is released from rest. What is the tension in the string (in N) when the ball has fallen through 45o as shown. Hint: First find the velocity in terms of L and then apply Newton's 2nd law in normal and tangential directions. If you do it...