Answer:
網站有中、英文版本,也有繁、簡體版,可通過每頁左上角的連結隨時網站有中、英文版本,也有繁、簡體版,可通過每頁左上角的連結隨時
Explanation:
Answer:
Option D: More than 90
Explanation:
Thickness probably depends on temperature. The higher the temperature, the more aliens we expect to be thin.
Answer:
14.8 kg
Explanation:
We are given that
We have to find the mass of the pulley.
According to question
Moment of inertia of pulley=
Where
Hence, the mass of the pulley=14.8 kg
The initial velocity (its speed before falling off) is approximately 1.95 m/s