HomeAstronomyBoring feedGame LevelsLight Bulb LifeMap ArchivePhysics 2010ScreencapsSpeed TestTrek DataVote 2020WallpaperWeather
The following physics responses are provided by a student and, as such, should be considered in that context. While every effort is made for accuracy, absolute correctness cannot be fully guaranteed.
| C | I | Question | Answer |
|---|---|---|---|
| 13 | A mass of 0.40 kg, attached to a spring with a spring constant of 80 N/m, is set into simple harmonic motion. What is the magnitude of the acceleration of the mass when at its maximum displacement of 0.10 m from the equilibrium position? | 20 m/s^2 | |
| 13 | A tiny spring, with a spring constant of 1.20 N/m, will be stretched to what displacement by a 0.005 0-N force? | 4.2 mm | |
| 13 | An object moving in simple harmonic motion has an amplitude of 0.020 m and a maximum acceleration of 40 m/s2. What is the frequency of the system? | 7.1 Hz | |
| 8 | A figure skater on ice with arms extended, spins at a rate of 2.5 rev/s. After he draws his arms in, he spins at 6.0 rev/s. By what factor does the skater's kinetic energy change when he draws his arms in? | 2.4 |