forced oscillations
may be obtained. The natural frequency of this system equals 
, and if the forced frequency Ω agrees with the natural frequency, then resonance will occur.
http://www.acoustics.salford.ac.uk/feschools/waves/shm3.htm
• Animations and videos of forced oscillation and resonance.
- radical sign
- radicand
- radius
- radius
- radius of convergence
- radius of curvature
- radius of gyration
- radius vector
- raise
- Ramanujan, Srinivasa
- Ramsey, Frank
- Ramsey Theory
- random
- random error
- random graph
- randomization
- randomize
- randomized blocks
- random numbers
- random sample
- random variable
- random vector
- random walk
- range
- range