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centre of mass of a solid hemisphere
3/8 r from base
centre of mass of a solid cone
1/4 h
volume of solid cone
1/3 πr²h
centre of mass of a hollow hemisphere
1/2 r
centre of mass of a hollow cone
1/3 h
volume of a hollow cone
πrl
Ax̄, where A = ∫y dx
∫xy dx
Aȳ, where A = ∫y dx
∫y²/2 dx
Ax̄, where A = ∫x dy
∫x²/2 dx
Aȳ, where A = ∫x dy
∫xy dx
Vx̄, where V = π∫y² dx
∫y²x dx
Vȳ, where V = π∫x² dy
∫x²y dy
Time period of a simple pendulum
T = 2π√(l/g)
Time period of a mass-spring system
T = 2π√(m/k)