Answer:
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Answer:
the answer is B: earth takes to rotate once on its axis
Answer:
v= 17.15 m/s
Explanation:
mass of the book=0.1 Kg
height above ground, h= 15 m
Using conservation of energy
Potential energy is converted into kinetic energy




v= 17.15 m/s
Hence, the book will hit the ground at the speed of 17.15 m/s.
Answer:
F = 1300 N
Explanation:
F = mv²/R = 0.4(100²)/3 = 1333.3333...
green liquid becoming a red liquid