[填空题]
A merry-go-round has a mag- uv./ c si8;/yhrnapnb9ox6li :7jnss of 1640 kg and a radius of 7.50 m. How much net work is required to acceler6nio :bx7njl9ate it from rest to a rotation rate of 1.00 revolution per 8.00 s? Assume it is a solid cylinder. J
Post time 2025-2-18 20:00:22
