A.\( - \infty \)
B.\({n^2}\)
C.\( + \infty \)
D.\(0\)

A.\(1\)
B.\(2\)
C.\(\dfrac{1}{4}\)
D.\(\dfrac{1}{2}\)

A.
B.
C.
D.

A.4
B.2
C.6
D.3

A.30 m/s.
B.60 m/s.
C.72 m/s.
D.36 m/s.

A.8,36 cm/s.
B.29,1 cm/s.
C.23,9 cm/s.
D.16,7 cm/s.

A.2,56 rad.
B.2,91 rad.
C.1,87 rad.
D.2,23 rad.

A.40 m/s
B.20 m/s
C.40 cm/s
D.20 cm/s

A.\(T = 2\pi \sqrt {\dfrac{k}{m}} .\)
B.\(T = 2\pi \sqrt {\dfrac{m}{k}} .\)
C.\(T = 2\pi \sqrt {\dfrac{\ell }{g}} .\)
D.\(T = 2\pi \sqrt {\dfrac{g}{\ell }} .\)

A.\(\lambda  = \dfrac{{2\pi v}}{\omega }\)
B.\(\lambda  = v\omega \)
C.\(\lambda  = \dfrac{v}{{{\omega ^2}}}\)
D.\(\lambda  = \dfrac{v}{\omega }\)