- 搜标题
- 搜题干
- 搜选项
单项选择题
If an object of mass m attached to a light spring is replaced by one of mass 9m, the frequency of vibrating system changes by what multiplication factor?( )
A．1/9
B．9.0
C．1/3
D．3.0
E．6.0
B．9.0
C．1/3
D．3.0
E．6.0
