Recent content by brookbj

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    Static equilibrium of window cleaner

    A window cleaner of mass 95 Kg places a 22 KG ladder against a frictionless wall, at an angle 65 degrees with the horizontal. The ladder is 10 m long and rests on a wet floor with a coefficient of static friction equal to 0.40 What is the maximum length that the window cleaner can climb before...
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    How Can You Calculate Jupiter's Radius Using Europa's Orbital Data?

    The moon Europa, of the planet Jupiter, has an orbital period of 3.55 days and an average distance from the centre of the planet equal to 671,000 Km. If the magnitude of the gravitational acceleration at the surface of Jupiter is 2.36 times greater than that on the surface of the Earth, what is...
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    Calculating the Critical Distance for Spaceship Gravity: A Scientific Approach

    Thanks, for your help!
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    Calculating the Critical Distance for Spaceship Gravity: A Scientific Approach

    Is it just, GMeMm/R2 = GMmMs/(R-r)2 thanks, this question is killing me
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    Calculating the Critical Distance for Spaceship Gravity: A Scientific Approach

    Hey I know Newton's Law of Universal Gravitation, but I am not given masses or distance from the Earth to the moon or the shuttle.
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    Calculating the Critical Distance for Spaceship Gravity: A Scientific Approach

    Hey, I don't know how to go about and answer this question A spaceship is launched and starts moving directly towards the moon. At what distance from the Earth will the pull of the moon, on the spaceship, exceed the pull of the Earth? Ignore the effect of the sun in this calculation. can...