For a certain ground motion, if its peak ground motion acceleration is 10.0, then Sa(0), the value of its response spectrum at T =0 is?
A: 1.0
B: 10.0
C: 0.0
D: 2.25
A: 1.0
B: 10.0
C: 0.0
D: 2.25
举一反三
- A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of4.0 cm. If a timer is started when its displacement is a maximum (hence x = 4 cm when t = 0), what isthe acceleration magnitude when t = 3 s? 未知类型：{'options': ['', '', '', '', ''], 'type': 102}
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