Recent content by selsunblue

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    Oscillations, calculating spring constant, amplitude, period

    Homework Statement A spring stretches 0.150m when a 0.300kg object is hung from it. The spring is then stretched an additional 0.100m from this equilibrium point and released. A) Calculate the spring constant (k) B) Calculate the amplitude, period of motion T, frequency f and angular...
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    How Do You Calculate Uncertainty in Mean Difference?

    Homework Statement Homework Equations Mean difference and SEM The Attempt at a Solution Would the mean difference be 0.16?. I'm not sure about the answer because they give that much working space, Do I have to find the uncertainty of the difference first and then my answer implement that...
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    Collision question involving velocity, Kinetic energy and conservation

    Oh It's the mass of the stationary ceramic ball, sorry about that, forgot to write it in I guess. Would it be 50 or 20 in this case?
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    Collision question involving velocity, Kinetic energy and conservation

    Homework Statement A 50 gram steel ball moving on a frictionless horizontal surface at 2.0m.s^-1 hits a stationary 20 gram ceramic ball. After the collision the ceramic ball moves off at a velocity of 2.5m.s^-1. (i) Calculate the velocity of the steel ball after the collision. (ii) Calculate...